Bechtel, Achim

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orcid::0000-0002-3937-8209
  • Bechtel, Achim (16)
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Author's Bibliography

Supplementary data for the article: Kojić, I.; Bechtel, A.; Aleksić, N.; Životić, D.; Trifunović, S.; Gajica, G.; Stojanović, K. Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal. Polymers 2021, 13 (5), 759. https://doi.org/10.3390/polym13050759.

Kojić, Ivan; Bechtel, Achim; Aleksić, Nikoleta; Životić, Dragana; Trifunović, Snežana S.; Gajica, Gordana; Stojanović, Ksenija A.

(MDPI, 2021)

TY  - BOOK
AU  - Kojić, Ivan
AU  - Bechtel, Achim
AU  - Aleksić, Nikoleta
AU  - Životić, Dragana
AU  - Trifunović, Snežana S.
AU  - Gajica, Gordana
AU  - Stojanović, Ksenija A.
PY  - 2021
UR  - https://www.mdpi.com/2073-4360/13/5/759
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/4398
PB  - MDPI
T2  - Polymers
T1  - Supplementary data for the article: Kojić, I.; Bechtel, A.; Aleksić, N.; Životić, D.; Trifunović, S.; Gajica, G.; Stojanović, K. Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal. Polymers 2021, 13 (5), 759. https://doi.org/10.3390/polym13050759.
ER  - 
@book{
author = "Kojić, Ivan and Bechtel, Achim and Aleksić, Nikoleta and Životić, Dragana and Trifunović, Snežana S. and Gajica, Gordana and Stojanović, Ksenija A.",
year = "2021",
url = "https://www.mdpi.com/2073-4360/13/5/759, http://cherry.chem.bg.ac.rs/handle/123456789/4398",
publisher = "MDPI",
journal = "Polymers",
title = "Supplementary data for the article: Kojić, I.; Bechtel, A.; Aleksić, N.; Životić, D.; Trifunović, S.; Gajica, G.; Stojanović, K. Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal. Polymers 2021, 13 (5), 759. https://doi.org/10.3390/polym13050759."
}
Kojić, I., Bechtel, A., Aleksić, N., Životić, D., Trifunović, S. S., Gajica, G.,& Stojanović, K. A. (2021). Supplementary data for the article: Kojić, I.; Bechtel, A.; Aleksić, N.; Životić, D.; Trifunović, S.; Gajica, G.; Stojanović, K. Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal. Polymers 2021, 13 (5), 759. https://doi.org/10.3390/polym13050759..
Polymers
MDPI..
Kojić I, Bechtel A, Aleksić N, Životić D, Trifunović SS, Gajica G, Stojanović KA. Supplementary data for the article: Kojić, I.; Bechtel, A.; Aleksić, N.; Životić, D.; Trifunović, S.; Gajica, G.; Stojanović, K. Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal. Polymers 2021, 13 (5), 759. https://doi.org/10.3390/polym13050759.. Polymers. 2021;
Kojić Ivan, Bechtel Achim, Aleksić Nikoleta, Životić Dragana, Trifunović Snežana S., Gajica Gordana, Stojanović Ksenija A., "Supplementary data for the article: Kojić, I.; Bechtel, A.; Aleksić, N.; Životić, D.; Trifunović, S.; Gajica, G.; Stojanović, K. Study of the Synergetic Effect of Co-Pyrolysis of Lignite and High-Density Polyethylene Aiming to Improve Utilization of Low-Rank Coal. Polymers 2021, 13 (5), 759. https://doi.org/10.3390/polym13050759." Polymers (2021)

Study of the synergetic effect of co-pyrolysis of lignite and high-density polyethylene aiming to improve utilization of low-rank coal

Kojić, Ivan; Bechtel, Achim; Aleksić, Nikoleta; Životić, Dragana; Trifunović, Snežana S.; Gajica, Gordana; Stojanović, Ksenija A.

(MDPI, 2021)

TY  - JOUR
AU  - Kojić, Ivan
AU  - Bechtel, Achim
AU  - Aleksić, Nikoleta
AU  - Životić, Dragana
AU  - Trifunović, Snežana S.
AU  - Gajica, Gordana
AU  - Stojanović, Ksenija A.
PY  - 2021
UR  - https://www.mdpi.com/2073-4360/13/5/759
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/4397
AB  - The mutual impact of low-quality lignite and high-density polyethylene (HDPE) during open system pyrolysis was investigated, aiming to improve utilization of lignite with simultaneous treatment of HDPE waste. Pyrolysis of lignite, HDPE, and their mixture (mass ratio, 1:1) was performed at temperatures 400, 450, 500, 550, and 600 °C. Initial substrates and pyrolysis products were characterized by thermogravimetric analysis (TGA), gas chromatography–mass spectrometry (GC–MS), specific carbon isotope analysis of individual hydrocarbons (δ13C), Rock-Eval pyrolysis, and elemental analysis. The positive synergetic effect during co-pyrolysis of lignite/HDPE mixture was observed at temperatures ≥450 °C, with the greatest being at 500 °C. The highest yield of liquid co-pyrolysis products with a similar composition to that of crude oils is also noticed at 500 °C. The yields of liquid and gaseous products and quality of pyrolytic products obtained by co-pyrolysis of lignite/HDPE mixture are notably improved compared with pyrolysis of lignite alone. On the other hand, data obtained from pyrolysis of HDPE alone indicate that it cannot be concurrent to well-developed catalytic thermal processes for polymer recycling. However, concerning the huge amount of produced HDPE, at least part of this plastic material can be reused for advanced thermal treatment of lignite, particularly in countries where this low-rank coal represents the main source of energy.
PB  - MDPI
T2  - Polymers
T1  - Study of the synergetic effect of co-pyrolysis of lignite and high-density polyethylene aiming to improve utilization of low-rank coal
VL  - 13
IS  - 5
SP  - 759
DO  - 10.3390/polym13050759
ER  - 
@article{
author = "Kojić, Ivan and Bechtel, Achim and Aleksić, Nikoleta and Životić, Dragana and Trifunović, Snežana S. and Gajica, Gordana and Stojanović, Ksenija A.",
year = "2021",
url = "https://www.mdpi.com/2073-4360/13/5/759, http://cherry.chem.bg.ac.rs/handle/123456789/4397",
abstract = "The mutual impact of low-quality lignite and high-density polyethylene (HDPE) during open system pyrolysis was investigated, aiming to improve utilization of lignite with simultaneous treatment of HDPE waste. Pyrolysis of lignite, HDPE, and their mixture (mass ratio, 1:1) was performed at temperatures 400, 450, 500, 550, and 600 °C. Initial substrates and pyrolysis products were characterized by thermogravimetric analysis (TGA), gas chromatography–mass spectrometry (GC–MS), specific carbon isotope analysis of individual hydrocarbons (δ13C), Rock-Eval pyrolysis, and elemental analysis. The positive synergetic effect during co-pyrolysis of lignite/HDPE mixture was observed at temperatures ≥450 °C, with the greatest being at 500 °C. The highest yield of liquid co-pyrolysis products with a similar composition to that of crude oils is also noticed at 500 °C. The yields of liquid and gaseous products and quality of pyrolytic products obtained by co-pyrolysis of lignite/HDPE mixture are notably improved compared with pyrolysis of lignite alone. On the other hand, data obtained from pyrolysis of HDPE alone indicate that it cannot be concurrent to well-developed catalytic thermal processes for polymer recycling. However, concerning the huge amount of produced HDPE, at least part of this plastic material can be reused for advanced thermal treatment of lignite, particularly in countries where this low-rank coal represents the main source of energy.",
publisher = "MDPI",
journal = "Polymers",
title = "Study of the synergetic effect of co-pyrolysis of lignite and high-density polyethylene aiming to improve utilization of low-rank coal",
volume = "13",
number = "5",
pages = "759",
doi = "10.3390/polym13050759"
}
Kojić, I., Bechtel, A., Aleksić, N., Životić, D., Trifunović, S. S., Gajica, G.,& Stojanović, K. A. (2021). Study of the synergetic effect of co-pyrolysis of lignite and high-density polyethylene aiming to improve utilization of low-rank coal.
Polymers
MDPI., 13(5), 759.
https://doi.org/10.3390/polym13050759
Kojić I, Bechtel A, Aleksić N, Životić D, Trifunović SS, Gajica G, Stojanović KA. Study of the synergetic effect of co-pyrolysis of lignite and high-density polyethylene aiming to improve utilization of low-rank coal. Polymers. 2021;13(5):759
Kojić Ivan, Bechtel Achim, Aleksić Nikoleta, Životić Dragana, Trifunović Snežana S., Gajica Gordana, Stojanović Ksenija A., "Study of the synergetic effect of co-pyrolysis of lignite and high-density polyethylene aiming to improve utilization of low-rank coal" Polymers, 13, no. 5 (2021):759,
https://doi.org/10.3390/polym13050759 .

Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae

Nytoft, Hans Peter; Kildahl-Andersen, Geir; Lindström, Sofie; Rise, Frode; Bechtel, Achim; Mitrović, Danica D.; Đoković, Nataša; Životić, Dragana R.; Stojanović, Ksenija A.

(Elsevier, 2019)

TY  - JOUR
AU  - Nytoft, Hans Peter
AU  - Kildahl-Andersen, Geir
AU  - Lindström, Sofie
AU  - Rise, Frode
AU  - Bechtel, Achim
AU  - Mitrović, Danica D.
AU  - Đoković, Nataša
AU  - Životić, Dragana R.
AU  - Stojanović, Ksenija A.
PY  - 2019
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/2811
AB  - Two previously unidentified dehydroabietane isomers were isolated from Miocene Serbian
lignite and Rhaetian (Late Triassic) coaly mudstones from South Sweden and characterized using
NMR-spectroscopy as cis- and trans-dehydroicetexane. Both have a 9(10→20)-abeo-abietane or
icetexane skeleton consisting of a 6-7-6 tricyclic framework with seven carbons in ring B instead of
the usual six in common diterpanes of the abietane-type. Dehydroicetexanes can be detected using GC-MS-MS in m/z 270 → 146 chromatograms without interference from dehydroabietane or other isomers. Dehydroicetexanes are often abundant in high latitude coals and mudstones ranging fromTriassic to Miocene, and in high latitude oils (Canada and Greenland) sourced from terrigenous organic matter. The trans/(cis+ trans) dehydroicetexane ratio is low in immature sediments, but usually around 0.83 in oils and mature sediments with vitrinite reflectance (%Rr) above 0.5 suggesting an equilibrium from the start of the oil window. Dehydroicetexanes are more stable than dehydroabietane and some oils, rich in dehydroicetexanes, contain no dehydroabietane. Precursors could be plant diterpenoids having the icetexane structure, which have been known for more than 40 years and isolated from a variety of higher plant sources, including some angiosperms. Many of the relatively simple icetexanes were isolated for the first time from Chamaecyparis pisifera and related species where they seem to be particularly abundant, suggesting that dehydroicetaxanes may be used as markers for the genus Chamaecyparis or for Cupressoideae in general.
PB  - Elsevier
T2  - Organic Geochemistry
T1  - Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae
DO  - 10.1016/j.orggeochem.2019.01.001
ER  - 
@article{
author = "Nytoft, Hans Peter and Kildahl-Andersen, Geir and Lindström, Sofie and Rise, Frode and Bechtel, Achim and Mitrović, Danica D. and Đoković, Nataša and Životić, Dragana R. and Stojanović, Ksenija A.",
year = "2019",
url = "http://cherry.chem.bg.ac.rs/handle/123456789/2811",
abstract = "Two previously unidentified dehydroabietane isomers were isolated from Miocene Serbian
lignite and Rhaetian (Late Triassic) coaly mudstones from South Sweden and characterized using
NMR-spectroscopy as cis- and trans-dehydroicetexane. Both have a 9(10→20)-abeo-abietane or
icetexane skeleton consisting of a 6-7-6 tricyclic framework with seven carbons in ring B instead of
the usual six in common diterpanes of the abietane-type. Dehydroicetexanes can be detected using GC-MS-MS in m/z 270 → 146 chromatograms without interference from dehydroabietane or other isomers. Dehydroicetexanes are often abundant in high latitude coals and mudstones ranging fromTriassic to Miocene, and in high latitude oils (Canada and Greenland) sourced from terrigenous organic matter. The trans/(cis+ trans) dehydroicetexane ratio is low in immature sediments, but usually around 0.83 in oils and mature sediments with vitrinite reflectance (%Rr) above 0.5 suggesting an equilibrium from the start of the oil window. Dehydroicetexanes are more stable than dehydroabietane and some oils, rich in dehydroicetexanes, contain no dehydroabietane. Precursors could be plant diterpenoids having the icetexane structure, which have been known for more than 40 years and isolated from a variety of higher plant sources, including some angiosperms. Many of the relatively simple icetexanes were isolated for the first time from Chamaecyparis pisifera and related species where they seem to be particularly abundant, suggesting that dehydroicetaxanes may be used as markers for the genus Chamaecyparis or for Cupressoideae in general.",
publisher = "Elsevier",
journal = "Organic Geochemistry",
title = "Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae",
doi = "10.1016/j.orggeochem.2019.01.001"
}
Nytoft, H. P., Kildahl-Andersen, G., Lindström, S., Rise, F., Bechtel, A., Mitrović, D. D., Đoković, N., Životić, D. R.,& Stojanović, K. A. (2019). Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae.
Organic Geochemistry
Elsevier..
https://doi.org/10.1016/j.orggeochem.2019.01.001
Nytoft HP, Kildahl-Andersen G, Lindström S, Rise F, Bechtel A, Mitrović DD, Đoković N, Životić DR, Stojanović KA. Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae. Organic Geochemistry. 2019;
Nytoft Hans Peter, Kildahl-Andersen Geir, Lindström Sofie, Rise Frode, Bechtel Achim, Mitrović Danica D., Đoković Nataša, Životić Dragana R., Stojanović Ksenija A., "Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae" Organic Geochemistry (2019),
https://doi.org/10.1016/j.orggeochem.2019.01.001 .
3
5
4
5

Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae

Nytoft, Hans Peter; Kildahl-Andersen, Geir; Lindström, Sofie; Rise, Frode; Bechtel, Achim; Mitrović, Danica D.; Đoković, Nataša; Životić, Dragana R.; Stojanović, Ksenija A.

(Elsevier, 2019)

TY  - JOUR
AU  - Nytoft, Hans Peter
AU  - Kildahl-Andersen, Geir
AU  - Lindström, Sofie
AU  - Rise, Frode
AU  - Bechtel, Achim
AU  - Mitrović, Danica D.
AU  - Đoković, Nataša
AU  - Životić, Dragana R.
AU  - Stojanović, Ksenija A.
PY  - 2019
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/2846
AB  - Two previously unidentified dehydroabietane isomers were isolated from Miocene Serbian lignite and Rhaetian (Late Triassic) coaly mudstones from South Sweden and characterized using NMR-spectroscopy as cis- and trans-dehydroicetexane. Both have a 9(10 → 20)-abeo-abietane or icetexane skeleton, consisting of a 6-7-6 tricyclic framework with seven carbons in ring B instead of the usual six in common diterpanes of the abietane-type. Dehydroicetexanes can be detected using GC-MS-MS in m/z 270 → 146 chromatograms without interference from dehydroabietane or other isomers. Dehydroicetexanes are often abundant in high latitude coals and mudstones ranging from Triassic to Miocene, and in high latitude oils (Canada and Greenland) sourced from terrigenous organic matter. The trans/(cis + trans) dehydroicetexane ratio is low in immature sediments, but usually around 0.83 in oils and mature sediments with vitrinite reflectance (%R r ) above 0.5, suggesting an equilibrium from the start of the oil window. Dehydroicetexanes are more stable than dehydroabietane and some oils, rich in dehydroicetexanes, contain no dehydroabietane. Precursors could be plant diterpenoids having the icetexane structure, which have been known for more than 40 years and isolated from a variety of higher plant sources, including some angiosperms. Many of the relatively simple icetexanes were isolated for the first time from Chamaecyparis pisifera and related species where they seem to be particularly abundant, suggesting that dehydroicetexanes may be used as markers for the genus Chamaecyparis or for Cupressoideae in general.
PB  - Elsevier
T2  - Organic Geochemistry
T1  - Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae
VL  - 129
SP  - 14
EP  - 23
DO  - 10.1016/j.orggeochem.2019.01.001
ER  - 
@article{
author = "Nytoft, Hans Peter and Kildahl-Andersen, Geir and Lindström, Sofie and Rise, Frode and Bechtel, Achim and Mitrović, Danica D. and Đoković, Nataša and Životić, Dragana R. and Stojanović, Ksenija A.",
year = "2019",
url = "http://cherry.chem.bg.ac.rs/handle/123456789/2846",
abstract = "Two previously unidentified dehydroabietane isomers were isolated from Miocene Serbian lignite and Rhaetian (Late Triassic) coaly mudstones from South Sweden and characterized using NMR-spectroscopy as cis- and trans-dehydroicetexane. Both have a 9(10 → 20)-abeo-abietane or icetexane skeleton, consisting of a 6-7-6 tricyclic framework with seven carbons in ring B instead of the usual six in common diterpanes of the abietane-type. Dehydroicetexanes can be detected using GC-MS-MS in m/z 270 → 146 chromatograms without interference from dehydroabietane or other isomers. Dehydroicetexanes are often abundant in high latitude coals and mudstones ranging from Triassic to Miocene, and in high latitude oils (Canada and Greenland) sourced from terrigenous organic matter. The trans/(cis + trans) dehydroicetexane ratio is low in immature sediments, but usually around 0.83 in oils and mature sediments with vitrinite reflectance (%R r ) above 0.5, suggesting an equilibrium from the start of the oil window. Dehydroicetexanes are more stable than dehydroabietane and some oils, rich in dehydroicetexanes, contain no dehydroabietane. Precursors could be plant diterpenoids having the icetexane structure, which have been known for more than 40 years and isolated from a variety of higher plant sources, including some angiosperms. Many of the relatively simple icetexanes were isolated for the first time from Chamaecyparis pisifera and related species where they seem to be particularly abundant, suggesting that dehydroicetexanes may be used as markers for the genus Chamaecyparis or for Cupressoideae in general.",
publisher = "Elsevier",
journal = "Organic Geochemistry",
title = "Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae",
volume = "129",
pages = "14-23",
doi = "10.1016/j.orggeochem.2019.01.001"
}
Nytoft, H. P., Kildahl-Andersen, G., Lindström, S., Rise, F., Bechtel, A., Mitrović, D. D., Đoković, N., Životić, D. R.,& Stojanović, K. A. (2019). Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae.
Organic Geochemistry
Elsevier., 129, 14-23.
https://doi.org/10.1016/j.orggeochem.2019.01.001
Nytoft HP, Kildahl-Andersen G, Lindström S, Rise F, Bechtel A, Mitrović DD, Đoković N, Životić DR, Stojanović KA. Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae. Organic Geochemistry. 2019;129:14-23
Nytoft Hans Peter, Kildahl-Andersen Geir, Lindström Sofie, Rise Frode, Bechtel Achim, Mitrović Danica D., Đoković Nataša, Životić Dragana R., Stojanović Ksenija A., "Dehydroicetexanes in sediments and crude oils: Possible markers for Cupressoideae" Organic Geochemistry, 129 (2019):14-23,
https://doi.org/10.1016/j.orggeochem.2019.01.001 .
3
5
4
5

Maceral and biomarker composition of lignite lithotypes - Implications on palaeoenvironment and grindability properties

Mitrović, Danica D.; Đoković, Nataša; Životić, Dragana R.; Obradović, Marko O.; Bechtel, Achim; Stojanović, K.

(European Association of Geoscientists and Engineers, EAGE, 2019)

TY  - CONF
AU  - Mitrović, Danica D.
AU  - Đoković, Nataša
AU  - Životić, Dragana R.
AU  - Obradović, Marko O.
AU  - Bechtel, Achim
AU  - Stojanović, K.
PY  - 2019
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/3823
PB  - European Association of Geoscientists and Engineers, EAGE
C3  - 29th International Meeting on Organic Geochemistry, IMOG 2019
T1  - Maceral and biomarker composition of lignite lithotypes - Implications on palaeoenvironment and grindability properties
DO  - 10.3997/2214-4609.201902880
ER  - 
@conference{
author = "Mitrović, Danica D. and Đoković, Nataša and Životić, Dragana R. and Obradović, Marko O. and Bechtel, Achim and Stojanović, K.",
year = "2019",
url = "http://cherry.chem.bg.ac.rs/handle/123456789/3823",
publisher = "European Association of Geoscientists and Engineers, EAGE",
journal = "29th International Meeting on Organic Geochemistry, IMOG 2019",
title = "Maceral and biomarker composition of lignite lithotypes - Implications on palaeoenvironment and grindability properties",
doi = "10.3997/2214-4609.201902880"
}
Mitrović, D. D., Đoković, N., Životić, D. R., Obradović, M. O., Bechtel, A.,& Stojanović, K. (2019). Maceral and biomarker composition of lignite lithotypes - Implications on palaeoenvironment and grindability properties.
29th International Meeting on Organic Geochemistry, IMOG 2019
European Association of Geoscientists and Engineers, EAGE..
https://doi.org/10.3997/2214-4609.201902880
Mitrović DD, Đoković N, Životić DR, Obradović MO, Bechtel A, Stojanović K. Maceral and biomarker composition of lignite lithotypes - Implications on palaeoenvironment and grindability properties. 29th International Meeting on Organic Geochemistry, IMOG 2019. 2019;
Mitrović Danica D., Đoković Nataša, Životić Dragana R., Obradović Marko O., Bechtel Achim, Stojanović K., "Maceral and biomarker composition of lignite lithotypes - Implications on palaeoenvironment and grindability properties" 29th International Meeting on Organic Geochemistry, IMOG 2019 (2019),
https://doi.org/10.3997/2214-4609.201902880 .

Depositional environment and hydrocarbon source potential of the Lower Miocene oil shale deposit in the Aleksinac Basin (Serbia)

Bechtel, Achim; Oberauer, Klaus; Kostić, Aleksandar Ž.; Gratzer, Reinhard; Milisavljević, Vladimir; Aleksić, Nikoleta; Stojanović, Ksenija A.; Gross, Doris; Sachsenhofer, Reinhard F.

(Pergamon-Elsevier Science Ltd, Oxford, 2018)

TY  - JOUR
AU  - Bechtel, Achim
AU  - Oberauer, Klaus
AU  - Kostić, Aleksandar Ž.
AU  - Gratzer, Reinhard
AU  - Milisavljević, Vladimir
AU  - Aleksić, Nikoleta
AU  - Stojanović, Ksenija A.
AU  - Gross, Doris
AU  - Sachsenhofer, Reinhard F.
PY  - 2018
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/2573
AB  - The most prolific oil shale deposit in Serbia is located in the Aleksinac Basin and is assigned to the Lower Miocene. Depositional environments and hydrocarbon potential were assessed for the Aleksinac oil shale and coal layers through bulk geochemical, organic petrographical, biomarker, and carbon isotope data from core samples from a single well. Maturity parameters (vitrinite reflectance, T-max, biomarker isomerisation ratios) prove that the organic matter (OM) is immature. A lower lacustrine oil shale sequence is comprised of alternating sandstone and clay-rich rocks and some thin coal beds, indicating strong variations in depositional environment. This stratum is covered with thick sandstone (50 m) terminated by the main 4 m thick coal seam that was deposited in a low-lying mire, as evidenced by high total sulfur and mineral matrix contents. The plant input was dominated by angiosperms. A relative rise in water level led to the drowning of the swamp and to the deposition of a 60 m thick upper oil shale in a lacustrine environment. The OM of the oil shale is dominated by kerogen Type I (lamalginite). Biomarker data suggest a stratified water column that likely formed due to differences in salinity. The stratified water column led to a strictly anoxic environment and photic zone euxinia in a mesosalinar, hydrologically closed lake, which enabled the accumulation of uncommonly high amounts of organic material (average TOC: 18.0 wt%) with excellent preservation (average HI: 743 mg HC/g TOC). (c) 2017 Elsevier Ltd. All rights reserved.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Organic Geochemistry
T1  - Depositional environment and hydrocarbon source potential of the Lower Miocene oil shale deposit in the Aleksinac Basin (Serbia)
VL  - 115
SP  - 93
EP  - 112
DO  - 10.1016/j.orggeochem.2017.10.009
ER  - 
@article{
author = "Bechtel, Achim and Oberauer, Klaus and Kostić, Aleksandar Ž. and Gratzer, Reinhard and Milisavljević, Vladimir and Aleksić, Nikoleta and Stojanović, Ksenija A. and Gross, Doris and Sachsenhofer, Reinhard F.",
year = "2018",
url = "http://cherry.chem.bg.ac.rs/handle/123456789/2573",
abstract = "The most prolific oil shale deposit in Serbia is located in the Aleksinac Basin and is assigned to the Lower Miocene. Depositional environments and hydrocarbon potential were assessed for the Aleksinac oil shale and coal layers through bulk geochemical, organic petrographical, biomarker, and carbon isotope data from core samples from a single well. Maturity parameters (vitrinite reflectance, T-max, biomarker isomerisation ratios) prove that the organic matter (OM) is immature. A lower lacustrine oil shale sequence is comprised of alternating sandstone and clay-rich rocks and some thin coal beds, indicating strong variations in depositional environment. This stratum is covered with thick sandstone (50 m) terminated by the main 4 m thick coal seam that was deposited in a low-lying mire, as evidenced by high total sulfur and mineral matrix contents. The plant input was dominated by angiosperms. A relative rise in water level led to the drowning of the swamp and to the deposition of a 60 m thick upper oil shale in a lacustrine environment. The OM of the oil shale is dominated by kerogen Type I (lamalginite). Biomarker data suggest a stratified water column that likely formed due to differences in salinity. The stratified water column led to a strictly anoxic environment and photic zone euxinia in a mesosalinar, hydrologically closed lake, which enabled the accumulation of uncommonly high amounts of organic material (average TOC: 18.0 wt%) with excellent preservation (average HI: 743 mg HC/g TOC). (c) 2017 Elsevier Ltd. All rights reserved.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Organic Geochemistry",
title = "Depositional environment and hydrocarbon source potential of the Lower Miocene oil shale deposit in the Aleksinac Basin (Serbia)",
volume = "115",
pages = "93-112",
doi = "10.1016/j.orggeochem.2017.10.009"
}
Bechtel, A., Oberauer, K., Kostić, A. Ž., Gratzer, R., Milisavljević, V., Aleksić, N., Stojanović, K. A., Gross, D.,& Sachsenhofer, R. F. (2018). Depositional environment and hydrocarbon source potential of the Lower Miocene oil shale deposit in the Aleksinac Basin (Serbia).
Organic Geochemistry
Pergamon-Elsevier Science Ltd, Oxford., 115, 93-112.
https://doi.org/10.1016/j.orggeochem.2017.10.009
Bechtel A, Oberauer K, Kostić AŽ, Gratzer R, Milisavljević V, Aleksić N, Stojanović KA, Gross D, Sachsenhofer RF. Depositional environment and hydrocarbon source potential of the Lower Miocene oil shale deposit in the Aleksinac Basin (Serbia). Organic Geochemistry. 2018;115:93-112
Bechtel Achim, Oberauer Klaus, Kostić Aleksandar Ž., Gratzer Reinhard, Milisavljević Vladimir, Aleksić Nikoleta, Stojanović Ksenija A., Gross Doris, Sachsenhofer Reinhard F., "Depositional environment and hydrocarbon source potential of the Lower Miocene oil shale deposit in the Aleksinac Basin (Serbia)" Organic Geochemistry, 115 (2018):93-112,
https://doi.org/10.1016/j.orggeochem.2017.10.009 .
10
10
11

Depositional environment and hydrocarbon source potential of the Lower Miocene oil shale deposit in the Aleksinac Basin (Serbia)

Bechtel, Achim; Oberauer, Klaus; Kostić, Aleksandar Ž.; Gratzer, Reinhard; Milisavljević, Vladimir; Aleksić, Nikoleta; Stojanović, Ksenija A.; Gross, Doris; Sachsenhofer, Reinhard F.

(Pergamon-Elsevier Science Ltd, Oxford, 2018)

TY  - JOUR
AU  - Bechtel, Achim
AU  - Oberauer, Klaus
AU  - Kostić, Aleksandar Ž.
AU  - Gratzer, Reinhard
AU  - Milisavljević, Vladimir
AU  - Aleksić, Nikoleta
AU  - Stojanović, Ksenija A.
AU  - Gross, Doris
AU  - Sachsenhofer, Reinhard F.
PY  - 2018
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/3031
AB  - The most prolific oil shale deposit in Serbia is located in the Aleksinac Basin and is assigned to the Lower Miocene. Depositional environments and hydrocarbon potential were assessed for the Aleksinac oil shale and coal layers through bulk geochemical, organic petrographical, biomarker, and carbon isotope data from core samples from a single well. Maturity parameters (vitrinite reflectance, T-max, biomarker isomerisation ratios) prove that the organic matter (OM) is immature. A lower lacustrine oil shale sequence is comprised of alternating sandstone and clay-rich rocks and some thin coal beds, indicating strong variations in depositional environment. This stratum is covered with thick sandstone (50 m) terminated by the main 4 m thick coal seam that was deposited in a low-lying mire, as evidenced by high total sulfur and mineral matrix contents. The plant input was dominated by angiosperms. A relative rise in water level led to the drowning of the swamp and to the deposition of a 60 m thick upper oil shale in a lacustrine environment. The OM of the oil shale is dominated by kerogen Type I (lamalginite). Biomarker data suggest a stratified water column that likely formed due to differences in salinity. The stratified water column led to a strictly anoxic environment and photic zone euxinia in a mesosalinar, hydrologically closed lake, which enabled the accumulation of uncommonly high amounts of organic material (average TOC: 18.0 wt%) with excellent preservation (average HI: 743 mg HC/g TOC). (c) 2017 Elsevier Ltd. All rights reserved.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Organic Geochemistry
T1  - Depositional environment and hydrocarbon source potential of the Lower Miocene oil shale deposit in the Aleksinac Basin (Serbia)
VL  - 115
SP  - 93
EP  - 112
DO  - 10.1016/j.orggeochem.2017.10.009
ER  - 
@article{
author = "Bechtel, Achim and Oberauer, Klaus and Kostić, Aleksandar Ž. and Gratzer, Reinhard and Milisavljević, Vladimir and Aleksić, Nikoleta and Stojanović, Ksenija A. and Gross, Doris and Sachsenhofer, Reinhard F.",
year = "2018",
url = "http://cherry.chem.bg.ac.rs/handle/123456789/3031",
abstract = "The most prolific oil shale deposit in Serbia is located in the Aleksinac Basin and is assigned to the Lower Miocene. Depositional environments and hydrocarbon potential were assessed for the Aleksinac oil shale and coal layers through bulk geochemical, organic petrographical, biomarker, and carbon isotope data from core samples from a single well. Maturity parameters (vitrinite reflectance, T-max, biomarker isomerisation ratios) prove that the organic matter (OM) is immature. A lower lacustrine oil shale sequence is comprised of alternating sandstone and clay-rich rocks and some thin coal beds, indicating strong variations in depositional environment. This stratum is covered with thick sandstone (50 m) terminated by the main 4 m thick coal seam that was deposited in a low-lying mire, as evidenced by high total sulfur and mineral matrix contents. The plant input was dominated by angiosperms. A relative rise in water level led to the drowning of the swamp and to the deposition of a 60 m thick upper oil shale in a lacustrine environment. The OM of the oil shale is dominated by kerogen Type I (lamalginite). Biomarker data suggest a stratified water column that likely formed due to differences in salinity. The stratified water column led to a strictly anoxic environment and photic zone euxinia in a mesosalinar, hydrologically closed lake, which enabled the accumulation of uncommonly high amounts of organic material (average TOC: 18.0 wt%) with excellent preservation (average HI: 743 mg HC/g TOC). (c) 2017 Elsevier Ltd. All rights reserved.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Organic Geochemistry",
title = "Depositional environment and hydrocarbon source potential of the Lower Miocene oil shale deposit in the Aleksinac Basin (Serbia)",
volume = "115",
pages = "93-112",
doi = "10.1016/j.orggeochem.2017.10.009"
}
Bechtel, A., Oberauer, K., Kostić, A. Ž., Gratzer, R., Milisavljević, V., Aleksić, N., Stojanović, K. A., Gross, D.,& Sachsenhofer, R. F. (2018). Depositional environment and hydrocarbon source potential of the Lower Miocene oil shale deposit in the Aleksinac Basin (Serbia).
Organic Geochemistry
Pergamon-Elsevier Science Ltd, Oxford., 115, 93-112.
https://doi.org/10.1016/j.orggeochem.2017.10.009
Bechtel A, Oberauer K, Kostić AŽ, Gratzer R, Milisavljević V, Aleksić N, Stojanović KA, Gross D, Sachsenhofer RF. Depositional environment and hydrocarbon source potential of the Lower Miocene oil shale deposit in the Aleksinac Basin (Serbia). Organic Geochemistry. 2018;115:93-112
Bechtel Achim, Oberauer Klaus, Kostić Aleksandar Ž., Gratzer Reinhard, Milisavljević Vladimir, Aleksić Nikoleta, Stojanović Ksenija A., Gross Doris, Sachsenhofer Reinhard F., "Depositional environment and hydrocarbon source potential of the Lower Miocene oil shale deposit in the Aleksinac Basin (Serbia)" Organic Geochemistry, 115 (2018):93-112,
https://doi.org/10.1016/j.orggeochem.2017.10.009 .
10
10
11

Petrographical and organic geochemical study of the lignite from the Smederevsko Pomoravlje field (Kostolac Basin, Serbia)

Đoković, Nataša; Mitrović, Danica D.; Životić, Dragana R.; Bechtel, Achim; Sachsenhofer, Reinhard F.; Matic, Vesna; Glamocanin, Lidija; Stojanović, Ksenija A.

(Elsevier Science Bv, Amsterdam, 2018)

TY  - JOUR
AU  - Đoković, Nataša
AU  - Mitrović, Danica D.
AU  - Životić, Dragana R.
AU  - Bechtel, Achim
AU  - Sachsenhofer, Reinhard F.
AU  - Matic, Vesna
AU  - Glamocanin, Lidija
AU  - Stojanović, Ksenija A.
PY  - 2018
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/2195
AB  - Three Upper Miocene (Pontian) lignite seams are present in the Smederevsko Pomoravlje field (Kostolac Basin, Serbia). The origin of their organic matter (OM), the characteristics of the depositional environment and certain utilisation properties have been evaluated based on petrographic data, bulk organic geochemical parameters, biomarker patterns and their isotope signatures. Moreover, results of isotopic analysis were used for the investigation of the influence of diagenetic aromatisation on delta C-13 signatures of biomarkers. The studied lignites are typical humic coals. The OM of lignites is derived from woody vegetation and herbaceous peat-forming plants, with a strong prevalence of the former. The peat-forming vegetation is dominated by decay resistant conifers, including gymnosperm families Cupressaceae, Taxodiaceae, and Pinaceae. Angiosperms occurred in lower amounts. Minor contribution of ferns, fungi and emergent aquatic macrophyta to the biomass is also evident. Chemoautotrophic- and heterotrophic bacteria played an import role during diagenesis. Diagenetic alterations, associated with change in the number of carbon atoms, influence delta C-13 ratios. Diagenetic aromatisation of di- and non-hopanoid triterpenoids is accompanied with C-13 depletion, whereas aromatisation of hopanoids displays the opposite trend. Peatification proceeded in a fresh water environment under variable, anoxic to slightly oxic redox conditions. The lowermost coal seam III accumulated in a topogenous fresh water peat mire with open water areas, which changed occasionally into a wet forest swamp. This resulted in the deposition of mineral-rich coal. The characteristics of lignite in coal seam II are similar to those of coal seam III. This is supported also by generally similar delta C-13 values of individual biomarkers. Coal seam I is dominated by xylite-rich coal, formed under mesotrophic to ombrotrophic conditions. Rapid flooding of the bogs stopped peat growth in all three coal seams. The ratios of ring-A-degraded and non-degraded aromatic diterpenoids and non-hopanoid triterpenoids, proposed in this study, as well as degree of aromatisation of these biomarkers, reflect changes in the water table. Calorific values of the samples indicate that they meet basic requirements for utilisation in the thermal power plants. None of the lignite samples is suitable for coal briquetting, whereas, based on petrographic data, lignite from coal seam I possesses certain potential for fluidized bed gasification.
PB  - Elsevier Science Bv, Amsterdam
T2  - International Journal of Coal Geology
T1  - Petrographical and organic geochemical study of the lignite from the Smederevsko Pomoravlje field (Kostolac Basin, Serbia)
VL  - 195
SP  - 139
EP  - 171
DO  - 10.1016/j.coal.2018.06.005
ER  - 
@article{
author = "Đoković, Nataša and Mitrović, Danica D. and Životić, Dragana R. and Bechtel, Achim and Sachsenhofer, Reinhard F. and Matic, Vesna and Glamocanin, Lidija and Stojanović, Ksenija A.",
year = "2018",
url = "http://cherry.chem.bg.ac.rs/handle/123456789/2195",
abstract = "Three Upper Miocene (Pontian) lignite seams are present in the Smederevsko Pomoravlje field (Kostolac Basin, Serbia). The origin of their organic matter (OM), the characteristics of the depositional environment and certain utilisation properties have been evaluated based on petrographic data, bulk organic geochemical parameters, biomarker patterns and their isotope signatures. Moreover, results of isotopic analysis were used for the investigation of the influence of diagenetic aromatisation on delta C-13 signatures of biomarkers. The studied lignites are typical humic coals. The OM of lignites is derived from woody vegetation and herbaceous peat-forming plants, with a strong prevalence of the former. The peat-forming vegetation is dominated by decay resistant conifers, including gymnosperm families Cupressaceae, Taxodiaceae, and Pinaceae. Angiosperms occurred in lower amounts. Minor contribution of ferns, fungi and emergent aquatic macrophyta to the biomass is also evident. Chemoautotrophic- and heterotrophic bacteria played an import role during diagenesis. Diagenetic alterations, associated with change in the number of carbon atoms, influence delta C-13 ratios. Diagenetic aromatisation of di- and non-hopanoid triterpenoids is accompanied with C-13 depletion, whereas aromatisation of hopanoids displays the opposite trend. Peatification proceeded in a fresh water environment under variable, anoxic to slightly oxic redox conditions. The lowermost coal seam III accumulated in a topogenous fresh water peat mire with open water areas, which changed occasionally into a wet forest swamp. This resulted in the deposition of mineral-rich coal. The characteristics of lignite in coal seam II are similar to those of coal seam III. This is supported also by generally similar delta C-13 values of individual biomarkers. Coal seam I is dominated by xylite-rich coal, formed under mesotrophic to ombrotrophic conditions. Rapid flooding of the bogs stopped peat growth in all three coal seams. The ratios of ring-A-degraded and non-degraded aromatic diterpenoids and non-hopanoid triterpenoids, proposed in this study, as well as degree of aromatisation of these biomarkers, reflect changes in the water table. Calorific values of the samples indicate that they meet basic requirements for utilisation in the thermal power plants. None of the lignite samples is suitable for coal briquetting, whereas, based on petrographic data, lignite from coal seam I possesses certain potential for fluidized bed gasification.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "International Journal of Coal Geology",
title = "Petrographical and organic geochemical study of the lignite from the Smederevsko Pomoravlje field (Kostolac Basin, Serbia)",
volume = "195",
pages = "139-171",
doi = "10.1016/j.coal.2018.06.005"
}
Đoković, N., Mitrović, D. D., Životić, D. R., Bechtel, A., Sachsenhofer, R. F., Matic, V., Glamocanin, L.,& Stojanović, K. A. (2018). Petrographical and organic geochemical study of the lignite from the Smederevsko Pomoravlje field (Kostolac Basin, Serbia).
International Journal of Coal Geology
Elsevier Science Bv, Amsterdam., 195, 139-171.
https://doi.org/10.1016/j.coal.2018.06.005
Đoković N, Mitrović DD, Životić DR, Bechtel A, Sachsenhofer RF, Matic V, Glamocanin L, Stojanović KA. Petrographical and organic geochemical study of the lignite from the Smederevsko Pomoravlje field (Kostolac Basin, Serbia). International Journal of Coal Geology. 2018;195:139-171
Đoković Nataša, Mitrović Danica D., Životić Dragana R., Bechtel Achim, Sachsenhofer Reinhard F., Matic Vesna, Glamocanin Lidija, Stojanović Ksenija A., "Petrographical and organic geochemical study of the lignite from the Smederevsko Pomoravlje field (Kostolac Basin, Serbia)" International Journal of Coal Geology, 195 (2018):139-171,
https://doi.org/10.1016/j.coal.2018.06.005 .
10
9
10

Study of pyrolysis of high density polyethylene in the open system and estimation of its capability for co-pyrolysis with lignite

Kojić, Ivan; Bechtel, Achim; Kittinger, Friedrich; Stevanović, Nikola R.; Obradović, Marko; Stojanović, Ksenija A.

(Serbian Chemical Soc, Belgrade, 2018)

TY  - JOUR
AU  - Kojić, Ivan
AU  - Bechtel, Achim
AU  - Kittinger, Friedrich
AU  - Stevanović, Nikola R.
AU  - Obradović, Marko
AU  - Stojanović, Ksenija A.
PY  - 2018
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/2201
AB  - Pyrolysis of high density polyethylene (HDPE) in the open system was studied. A plastic bag for food packing was used as a source of HDPE. Pyrolysis was performed at temperatures of 400, 450 and 500 degrees C, which were chosen based on thermogravimetric analysis. The HDPE pyrolysis yielded liquid, gaseous and solid products. Temperature rise resulted in the increase of conversion of HDPE into liquid and gaseous products. The main constituents of liquid pyrolysates are 1-n-alkenes, n-alkanes and terminal n-dienes. The composition of liquid products indicates that the performed pyrolysis of HDPE could not serve as a standalone operation for the production of gasoline or diesel, but preferably as a pre-treatment to yield a product to be blended into a refinery or petrochemical feed stream. The advantage of a liquid pyrolysate in comparison to crude oil is the extremely low content of aromatic hydrocarbons and the absence of polar compounds. The gaseous products have desirable composition and consist mainly of methane and ethene. The solid residues do not produce ash by combustion and have high calorific values. Co-pyrolysis of HDPE with mineral-rich lignite indicated positive synergetic effect at 450 and 500 degrees C, which is reflected through the increased experimental yields of liquid and gaseous products in comparison to theoretical ones.
PB  - Serbian Chemical Soc, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Study of pyrolysis of high density polyethylene in the open system and estimation of its capability for co-pyrolysis with lignite
VL  - 83
IS  - 7-8
SP  - 923
EP  - 940
DO  - 10.2298/JSC171215027K
ER  - 
@article{
author = "Kojić, Ivan and Bechtel, Achim and Kittinger, Friedrich and Stevanović, Nikola R. and Obradović, Marko and Stojanović, Ksenija A.",
year = "2018",
url = "http://cherry.chem.bg.ac.rs/handle/123456789/2201",
abstract = "Pyrolysis of high density polyethylene (HDPE) in the open system was studied. A plastic bag for food packing was used as a source of HDPE. Pyrolysis was performed at temperatures of 400, 450 and 500 degrees C, which were chosen based on thermogravimetric analysis. The HDPE pyrolysis yielded liquid, gaseous and solid products. Temperature rise resulted in the increase of conversion of HDPE into liquid and gaseous products. The main constituents of liquid pyrolysates are 1-n-alkenes, n-alkanes and terminal n-dienes. The composition of liquid products indicates that the performed pyrolysis of HDPE could not serve as a standalone operation for the production of gasoline or diesel, but preferably as a pre-treatment to yield a product to be blended into a refinery or petrochemical feed stream. The advantage of a liquid pyrolysate in comparison to crude oil is the extremely low content of aromatic hydrocarbons and the absence of polar compounds. The gaseous products have desirable composition and consist mainly of methane and ethene. The solid residues do not produce ash by combustion and have high calorific values. Co-pyrolysis of HDPE with mineral-rich lignite indicated positive synergetic effect at 450 and 500 degrees C, which is reflected through the increased experimental yields of liquid and gaseous products in comparison to theoretical ones.",
publisher = "Serbian Chemical Soc, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Study of pyrolysis of high density polyethylene in the open system and estimation of its capability for co-pyrolysis with lignite",
volume = "83",
number = "7-8",
pages = "923-940",
doi = "10.2298/JSC171215027K"
}
Kojić, I., Bechtel, A., Kittinger, F., Stevanović, N. R., Obradović, M.,& Stojanović, K. A. (2018). Study of pyrolysis of high density polyethylene in the open system and estimation of its capability for co-pyrolysis with lignite.
Journal of the Serbian Chemical Society
Serbian Chemical Soc, Belgrade., 83(7-8), 923-940.
https://doi.org/10.2298/JSC171215027K
Kojić I, Bechtel A, Kittinger F, Stevanović NR, Obradović M, Stojanović KA. Study of pyrolysis of high density polyethylene in the open system and estimation of its capability for co-pyrolysis with lignite. Journal of the Serbian Chemical Society. 2018;83(7-8):923-940
Kojić Ivan, Bechtel Achim, Kittinger Friedrich, Stevanović Nikola R., Obradović Marko, Stojanović Ksenija A., "Study of pyrolysis of high density polyethylene in the open system and estimation of its capability for co-pyrolysis with lignite" Journal of the Serbian Chemical Society, 83, no. 7-8 (2018):923-940,
https://doi.org/10.2298/JSC171215027K .
1
1

Supplementary data for the article: Kojic, I.; Bechtel, A.; Kittinger, F.; Stevanovic, N.; Obradovic, M.; Stojanovic, K. Study of Pyrolysis of High Density Polyethylene in the Open System and Estimation of Its Capability for Co-Pyrolysis with Lignite. J. Serb. Chem. Soc. 2018, 83 (7–8), 923–940. https://doi.org/10.2298/JSC171215027K

Kojić, Ivan; Bechtel, Achim; Kittinger, Friedrich; Stevanović, Nikola R.; Obradović, Marko; Stojanović, Ksenija A.

(Serbian Chemical Soc, Belgrade, 2018)

TY  - BOOK
AU  - Kojić, Ivan
AU  - Bechtel, Achim
AU  - Kittinger, Friedrich
AU  - Stevanović, Nikola R.
AU  - Obradović, Marko
AU  - Stojanović, Ksenija A.
PY  - 2018
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/3306
PB  - Serbian Chemical Soc, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Supplementary data for the article: Kojic, I.; Bechtel, A.; Kittinger, F.; Stevanovic, N.; Obradovic, M.; Stojanovic, K. Study of Pyrolysis of High Density Polyethylene in the Open System and Estimation of Its Capability for Co-Pyrolysis with Lignite. J. Serb. Chem. Soc. 2018, 83 (7–8), 923–940. https://doi.org/10.2298/JSC171215027K
ER  - 
@book{
author = "Kojić, Ivan and Bechtel, Achim and Kittinger, Friedrich and Stevanović, Nikola R. and Obradović, Marko and Stojanović, Ksenija A.",
year = "2018",
url = "http://cherry.chem.bg.ac.rs/handle/123456789/3306",
publisher = "Serbian Chemical Soc, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Supplementary data for the article: Kojic, I.; Bechtel, A.; Kittinger, F.; Stevanovic, N.; Obradovic, M.; Stojanovic, K. Study of Pyrolysis of High Density Polyethylene in the Open System and Estimation of Its Capability for Co-Pyrolysis with Lignite. J. Serb. Chem. Soc. 2018, 83 (7–8), 923–940. https://doi.org/10.2298/JSC171215027K"
}
Kojić, I., Bechtel, A., Kittinger, F., Stevanović, N. R., Obradović, M.,& Stojanović, K. A. (2018). Supplementary data for the article: Kojic, I.; Bechtel, A.; Kittinger, F.; Stevanovic, N.; Obradovic, M.; Stojanovic, K. Study of Pyrolysis of High Density Polyethylene in the Open System and Estimation of Its Capability for Co-Pyrolysis with Lignite. J. Serb. Chem. Soc. 2018, 83 (7–8), 923–940. https://doi.org/10.2298/JSC171215027K.
Journal of the Serbian Chemical Society
Serbian Chemical Soc, Belgrade..
Kojić I, Bechtel A, Kittinger F, Stevanović NR, Obradović M, Stojanović KA. Supplementary data for the article: Kojic, I.; Bechtel, A.; Kittinger, F.; Stevanovic, N.; Obradovic, M.; Stojanovic, K. Study of Pyrolysis of High Density Polyethylene in the Open System and Estimation of Its Capability for Co-Pyrolysis with Lignite. J. Serb. Chem. Soc. 2018, 83 (7–8), 923–940. https://doi.org/10.2298/JSC171215027K. Journal of the Serbian Chemical Society. 2018;
Kojić Ivan, Bechtel Achim, Kittinger Friedrich, Stevanović Nikola R., Obradović Marko, Stojanović Ksenija A., "Supplementary data for the article: Kojic, I.; Bechtel, A.; Kittinger, F.; Stevanovic, N.; Obradovic, M.; Stojanovic, K. Study of Pyrolysis of High Density Polyethylene in the Open System and Estimation of Its Capability for Co-Pyrolysis with Lignite. J. Serb. Chem. Soc. 2018, 83 (7–8), 923–940. https://doi.org/10.2298/JSC171215027K" Journal of the Serbian Chemical Society (2018)

Petrographic and biomarker analysis of xylite-rich coal from the Kolubara and Kostolac lignite basins (Pannonian Basin, Serbia)

Đoković, Nataša; Mitrović, Danica D.; Životić, Dragana R.; Bechtel, Achim; Sachsenhofer, Reinhard F.; Stojanović, Ksenija A.

(Slovak Acad Sciences Geological Inst, Bratislava, 2018)

TY  - JOUR
AU  - Đoković, Nataša
AU  - Mitrović, Danica D.
AU  - Životić, Dragana R.
AU  - Bechtel, Achim
AU  - Sachsenhofer, Reinhard F.
AU  - Stojanović, Ksenija A.
PY  - 2018
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/2077
AB  - The maceral and biomarker characteristics of 4 sublithotypes of xylite-rich coal (SXCs), pale yellow, dark yellow, brown and black, originating from the Kolubara and Kostolac lignite basins were determined. Based on these results, differences in sources and changes of organic matter (OM) resulting in formation of 4 SXCs were established. Conifers (particularly Cupressaceae, Taxodiaceae and Pinacea) had a significant impact on the precursor OM of all SXCs. The contribution of gymnosperm vs. angiosperm vegetation decreased in order pale yellow SXC  gt  dark yellow SXC  gt  brown SXC  gt  black SXC. The distribution of non-hopanoid triterpenoids indicates that change of SXC colour from -yellow to black is associated with reduced input of angiosperm plants from the Betulacea family. Differences in hopane distribution, bitumen content, proportion of short-chain n-alkanes and degree of aromatization of di-and triterpenoids of pale yellow SXC are controlled by microbial communities which took part in the diagenetic alteration of OM. The content of total huminites increased from black to pale yellow SXC, whereas contents of total liptinite and inertinite macerals showed the opposite trend. SXCs differ according to textinite/ulminite ratio, which sharply decreased from pale yellow to black SXC, reflecting increase in gelification of woody tissue. Regarding the composition of liptinite macerals, the SXCs mostly differ according to resinite/liptodetrinite and resinite/suberinite ratios, which are higher in yellow than in brown and black SXC. This result along with values of TOC/N ratio and Carbon Preference Index indicate that the contribution of well preserved woody material, including lignin tissue vs. the impact of epicuticular waxes decreased from yellow to black SXC.
PB  - Slovak Acad Sciences Geological  Inst, Bratislava
T2  - Geologica Carpathica
T1  - Petrographic and biomarker analysis of xylite-rich coal from the Kolubara and Kostolac lignite basins (Pannonian Basin, Serbia)
VL  - 69
IS  - 1
SP  - 51
EP  - 70
DO  - 10.1515/geoca-2018-0004
ER  - 
@article{
author = "Đoković, Nataša and Mitrović, Danica D. and Životić, Dragana R. and Bechtel, Achim and Sachsenhofer, Reinhard F. and Stojanović, Ksenija A.",
year = "2018",
url = "http://cherry.chem.bg.ac.rs/handle/123456789/2077",
abstract = "The maceral and biomarker characteristics of 4 sublithotypes of xylite-rich coal (SXCs), pale yellow, dark yellow, brown and black, originating from the Kolubara and Kostolac lignite basins were determined. Based on these results, differences in sources and changes of organic matter (OM) resulting in formation of 4 SXCs were established. Conifers (particularly Cupressaceae, Taxodiaceae and Pinacea) had a significant impact on the precursor OM of all SXCs. The contribution of gymnosperm vs. angiosperm vegetation decreased in order pale yellow SXC  gt  dark yellow SXC  gt  brown SXC  gt  black SXC. The distribution of non-hopanoid triterpenoids indicates that change of SXC colour from -yellow to black is associated with reduced input of angiosperm plants from the Betulacea family. Differences in hopane distribution, bitumen content, proportion of short-chain n-alkanes and degree of aromatization of di-and triterpenoids of pale yellow SXC are controlled by microbial communities which took part in the diagenetic alteration of OM. The content of total huminites increased from black to pale yellow SXC, whereas contents of total liptinite and inertinite macerals showed the opposite trend. SXCs differ according to textinite/ulminite ratio, which sharply decreased from pale yellow to black SXC, reflecting increase in gelification of woody tissue. Regarding the composition of liptinite macerals, the SXCs mostly differ according to resinite/liptodetrinite and resinite/suberinite ratios, which are higher in yellow than in brown and black SXC. This result along with values of TOC/N ratio and Carbon Preference Index indicate that the contribution of well preserved woody material, including lignin tissue vs. the impact of epicuticular waxes decreased from yellow to black SXC.",
publisher = "Slovak Acad Sciences Geological  Inst, Bratislava",
journal = "Geologica Carpathica",
title = "Petrographic and biomarker analysis of xylite-rich coal from the Kolubara and Kostolac lignite basins (Pannonian Basin, Serbia)",
volume = "69",
number = "1",
pages = "51-70",
doi = "10.1515/geoca-2018-0004"
}
Đoković, N., Mitrović, D. D., Životić, D. R., Bechtel, A., Sachsenhofer, R. F.,& Stojanović, K. A. (2018). Petrographic and biomarker analysis of xylite-rich coal from the Kolubara and Kostolac lignite basins (Pannonian Basin, Serbia).
Geologica Carpathica
Slovak Acad Sciences Geological  Inst, Bratislava., 69(1), 51-70.
https://doi.org/10.1515/geoca-2018-0004
Đoković N, Mitrović DD, Životić DR, Bechtel A, Sachsenhofer RF, Stojanović KA. Petrographic and biomarker analysis of xylite-rich coal from the Kolubara and Kostolac lignite basins (Pannonian Basin, Serbia). Geologica Carpathica. 2018;69(1):51-70
Đoković Nataša, Mitrović Danica D., Životić Dragana R., Bechtel Achim, Sachsenhofer Reinhard F., Stojanović Ksenija A., "Petrographic and biomarker analysis of xylite-rich coal from the Kolubara and Kostolac lignite basins (Pannonian Basin, Serbia)" Geologica Carpathica, 69, no. 1 (2018):51-70,
https://doi.org/10.1515/geoca-2018-0004 .
1
1

Characterisation of lignite lithotypes from the "Kovin" deposit (Serbia) - Implications from petrographic, biomarker and isotopic analysis

Mitrović, Danica D.; Đoković, Nataša; Životić, Dragana R.; Bechtel, Achim; Cvetković, Olga; Stojanović, Ksenija A.

(Serbian Chemical Soc, Belgrade, 2017)

TY  - JOUR
AU  - Mitrović, Danica D.
AU  - Đoković, Nataša
AU  - Životić, Dragana R.
AU  - Bechtel, Achim
AU  - Cvetković, Olga
AU  - Stojanović, Ksenija A.
PY  - 2017
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/2510
AB  - Four lignite lithotypes (matrix coal, xylite-rich coal, mixture of matrix and mineral-rich coal and mixture of matrix and xylite-rich coal), originating from the Kovin deposit, were investigated in detail. The paper was aimed to determine the main maceral, biomarker and isotopic (delta C-13) characteristics of investigated lithotypes. Based on these results the sources and depositional environment of organic matter in 4 lithotypes were established. These samples were also used as substrates for investigation of the influence of diagenetic alteration on delta C-13 signatures of biomarkers, as well as for assessment of the most convenient utilization for each lithotype. The investigated lithotypes differ in accordance with the composition of huminite macerals. Xylite-rich coal notably distinguishes from other lithotypes beacuse of the highest content of conifer resins vs. epicuticular waxes. The mixture of matrix and mineral-rich coal is characterised by the greatest contribution of algae and fungi and the most intense methanotrophic activity at the time of deposition. In all coal lithotypes diagenetic aromatisation influenced isotopic composition of individual biomarkers. Xylite-rich coal has the poorest grindability properties. However, this coal lithotype is the most suitable for fluidized bed gasification, whereas the mixture of matrix and mineral-rich coal has the lowest applicability for this process. The calorific value decreases in order: xylite-rich coal  gt  matrix coal  gt  mixture of matrix and xylite-rich coal  gt  mixture of matrix and mineral-rich coal. The increase of organic carbon content and calorific value is controlled by the increase of contribution of wood vegetation vs. herbaceous peat-forming plants, as well as by stability of water table during peatification.
PB  - Serbian Chemical Soc, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - Characterisation of lignite lithotypes from the "Kovin" deposit (Serbia) - Implications from petrographic, biomarker and isotopic analysis
VL  - 82
IS  - 6
SP  - 739
EP  - 754
DO  - 10.2298/JSC161122030M
ER  - 
@article{
author = "Mitrović, Danica D. and Đoković, Nataša and Životić, Dragana R. and Bechtel, Achim and Cvetković, Olga and Stojanović, Ksenija A.",
year = "2017",
url = "http://cherry.chem.bg.ac.rs/handle/123456789/2510",
abstract = "Four lignite lithotypes (matrix coal, xylite-rich coal, mixture of matrix and mineral-rich coal and mixture of matrix and xylite-rich coal), originating from the Kovin deposit, were investigated in detail. The paper was aimed to determine the main maceral, biomarker and isotopic (delta C-13) characteristics of investigated lithotypes. Based on these results the sources and depositional environment of organic matter in 4 lithotypes were established. These samples were also used as substrates for investigation of the influence of diagenetic alteration on delta C-13 signatures of biomarkers, as well as for assessment of the most convenient utilization for each lithotype. The investigated lithotypes differ in accordance with the composition of huminite macerals. Xylite-rich coal notably distinguishes from other lithotypes beacuse of the highest content of conifer resins vs. epicuticular waxes. The mixture of matrix and mineral-rich coal is characterised by the greatest contribution of algae and fungi and the most intense methanotrophic activity at the time of deposition. In all coal lithotypes diagenetic aromatisation influenced isotopic composition of individual biomarkers. Xylite-rich coal has the poorest grindability properties. However, this coal lithotype is the most suitable for fluidized bed gasification, whereas the mixture of matrix and mineral-rich coal has the lowest applicability for this process. The calorific value decreases in order: xylite-rich coal  gt  matrix coal  gt  mixture of matrix and xylite-rich coal  gt  mixture of matrix and mineral-rich coal. The increase of organic carbon content and calorific value is controlled by the increase of contribution of wood vegetation vs. herbaceous peat-forming plants, as well as by stability of water table during peatification.",
publisher = "Serbian Chemical Soc, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "Characterisation of lignite lithotypes from the "Kovin" deposit (Serbia) - Implications from petrographic, biomarker and isotopic analysis",
volume = "82",
number = "6",
pages = "739-754",
doi = "10.2298/JSC161122030M"
}
Mitrović, D. D., Đoković, N., Životić, D. R., Bechtel, A., Cvetković, O.,& Stojanović, K. A. (2017). Characterisation of lignite lithotypes from the "Kovin" deposit (Serbia) - Implications from petrographic, biomarker and isotopic analysis.
Journal of the Serbian Chemical Society
Serbian Chemical Soc, Belgrade., 82(6), 739-754.
https://doi.org/10.2298/JSC161122030M
Mitrović DD, Đoković N, Životić DR, Bechtel A, Cvetković O, Stojanović KA. Characterisation of lignite lithotypes from the "Kovin" deposit (Serbia) - Implications from petrographic, biomarker and isotopic analysis. Journal of the Serbian Chemical Society. 2017;82(6):739-754
Mitrović Danica D., Đoković Nataša, Životić Dragana R., Bechtel Achim, Cvetković Olga, Stojanović Ksenija A., "Characterisation of lignite lithotypes from the "Kovin" deposit (Serbia) - Implications from petrographic, biomarker and isotopic analysis" Journal of the Serbian Chemical Society, 82, no. 6 (2017):739-754,
https://doi.org/10.2298/JSC161122030M .
5
7
6

Petrographical and organic geochemical study of the Kovin lignite deposit, Serbia

Mitrović, Danica D.; Đoković, Nataša; Životić, Dragana R.; Bechtel, Achim; Šajnović, Aleksandra; Stojanović, Ksenija A.

(Elsevier Science Bv, Amsterdam, 2016)

TY  - JOUR
AU  - Mitrović, Danica D.
AU  - Đoković, Nataša
AU  - Životić, Dragana R.
AU  - Bechtel, Achim
AU  - Šajnović, Aleksandra
AU  - Stojanović, Ksenija A.
PY  - 2016
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/2372
AB  - The origin of the organic matter (OM) and the characteristics of the depositional environment of lignites from the Upper Miocene Kovin deposit (hosting three coal seams) of Serbia were evaluated based on petrographic data, bulk organic geochemical parameters, biomarker analysis and stable isotope geochemistry (delta C-13 of individual biomarkers). Samples were collected from four boreholes, GD-601 and GD-603 (the "A" field), and KB-79 and KB-91 (the "B" field), representing different parts of coal seams I, II, and III. Investigated lignites are typical humic coals. The OM of lignites is derived from woody vegetation and herbaceous peat-forming plants, with prevalence of the former in most samples. Peat-forming vegetation is characterized by abundant decay resistant gymnosperm (coniferous) plants, followed by a low amount of angiosperms. Lignite forming plants mostly belonged to the gymnosperm families Cupressaceae, Taxodiaceae, Phyllocladaceae and Pinaceae. Slight input of ferns, fungi and aquatic macrophyta to lignite OM is also evident. Distributions of hopanoids and isotopic compositions of these biomarkers reflect the activity of various microbial populations represented by methanotrophic-, chemoautotrophic- and heterotrophic bacteria during diagenesis. Prominent C-28 28,30-bisnorneohop-13(18)-ene was observed for the first time in the lignite extracts. According to the delta C-13 value it was probably derived from chemoautotrophic bacteria. C28 28,30-bisnorneohop-13(18)-ene could be one of the possible precursors of a series of orphan aromatic hopanoids bearing an ethyl group at C-21, via progressive aromatization. Peatification proceeded in a fresh water environment under variable redox conditions, from anoxic to slightly oxic. All three coal seams are heterogeneous. The lower parts of the coal seams represent a topogenous fresh water peat mire with open water areas, which was subjected to inundations. The upper parts of coal seams represent a wet forest swamp with relatively stable conditions. Despite the observed variations in all three coal seams, the mean values of petrographic and organic geochemical parameters suggest general increasing of wetness and establishment of more stable conditions from seam III to seam I. Maceral and biomarker data indicate that rapid flooding of the bogs stopped peat growth in all three coal seams. Relatively frequent variations in all three coal seams, followed by repetition of lignite characteristics depict well the pronounced seasonality e.g. short term cycles of the climate during Late Miocene in investigated area. (C) 2016 Elsevier B.V. All rights reserved.
PB  - Elsevier Science Bv, Amsterdam
T2  - International Journal of Coal Geology
T1  - Petrographical and organic geochemical study of the Kovin lignite deposit, Serbia
VL  - 168
SP  - 80
EP  - 107
DO  - 10.1016/j.coal.2016.07.008
ER  - 
@article{
author = "Mitrović, Danica D. and Đoković, Nataša and Životić, Dragana R. and Bechtel, Achim and Šajnović, Aleksandra and Stojanović, Ksenija A.",
year = "2016",
url = "http://cherry.chem.bg.ac.rs/handle/123456789/2372",
abstract = "The origin of the organic matter (OM) and the characteristics of the depositional environment of lignites from the Upper Miocene Kovin deposit (hosting three coal seams) of Serbia were evaluated based on petrographic data, bulk organic geochemical parameters, biomarker analysis and stable isotope geochemistry (delta C-13 of individual biomarkers). Samples were collected from four boreholes, GD-601 and GD-603 (the "A" field), and KB-79 and KB-91 (the "B" field), representing different parts of coal seams I, II, and III. Investigated lignites are typical humic coals. The OM of lignites is derived from woody vegetation and herbaceous peat-forming plants, with prevalence of the former in most samples. Peat-forming vegetation is characterized by abundant decay resistant gymnosperm (coniferous) plants, followed by a low amount of angiosperms. Lignite forming plants mostly belonged to the gymnosperm families Cupressaceae, Taxodiaceae, Phyllocladaceae and Pinaceae. Slight input of ferns, fungi and aquatic macrophyta to lignite OM is also evident. Distributions of hopanoids and isotopic compositions of these biomarkers reflect the activity of various microbial populations represented by methanotrophic-, chemoautotrophic- and heterotrophic bacteria during diagenesis. Prominent C-28 28,30-bisnorneohop-13(18)-ene was observed for the first time in the lignite extracts. According to the delta C-13 value it was probably derived from chemoautotrophic bacteria. C28 28,30-bisnorneohop-13(18)-ene could be one of the possible precursors of a series of orphan aromatic hopanoids bearing an ethyl group at C-21, via progressive aromatization. Peatification proceeded in a fresh water environment under variable redox conditions, from anoxic to slightly oxic. All three coal seams are heterogeneous. The lower parts of the coal seams represent a topogenous fresh water peat mire with open water areas, which was subjected to inundations. The upper parts of coal seams represent a wet forest swamp with relatively stable conditions. Despite the observed variations in all three coal seams, the mean values of petrographic and organic geochemical parameters suggest general increasing of wetness and establishment of more stable conditions from seam III to seam I. Maceral and biomarker data indicate that rapid flooding of the bogs stopped peat growth in all three coal seams. Relatively frequent variations in all three coal seams, followed by repetition of lignite characteristics depict well the pronounced seasonality e.g. short term cycles of the climate during Late Miocene in investigated area. (C) 2016 Elsevier B.V. All rights reserved.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "International Journal of Coal Geology",
title = "Petrographical and organic geochemical study of the Kovin lignite deposit, Serbia",
volume = "168",
pages = "80-107",
doi = "10.1016/j.coal.2016.07.008"
}
Mitrović, D. D., Đoković, N., Životić, D. R., Bechtel, A., Šajnović, A.,& Stojanović, K. A. (2016). Petrographical and organic geochemical study of the Kovin lignite deposit, Serbia.
International Journal of Coal Geology
Elsevier Science Bv, Amsterdam., 168, 80-107.
https://doi.org/10.1016/j.coal.2016.07.008
Mitrović DD, Đoković N, Životić DR, Bechtel A, Šajnović A, Stojanović KA. Petrographical and organic geochemical study of the Kovin lignite deposit, Serbia. International Journal of Coal Geology. 2016;168:80-107
Mitrović Danica D., Đoković Nataša, Životić Dragana R., Bechtel Achim, Šajnović Aleksandra, Stojanović Ksenija A., "Petrographical and organic geochemical study of the Kovin lignite deposit, Serbia" International Journal of Coal Geology, 168 (2016):80-107,
https://doi.org/10.1016/j.coal.2016.07.008 .
20
20
24

Palaeoenvironmental reconstruction of the Kovin lignite deposit, Serbia

Mitrović, Danica D.; Đoković, Nataša; Životić, Dragana R.; Bechtel, Achim; Stojanović, Ksenija A.

(Schriftenreihe der Deutschen Gesellschaft für Geowissenschaften (SDGG), 2015)

TY  - CONF
AU  - Mitrović, Danica D.
AU  - Đoković, Nataša
AU  - Životić, Dragana R.
AU  - Bechtel, Achim
AU  - Stojanović, Ksenija A.
PY  - 2015
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/2817
PB  - Schriftenreihe der Deutschen Gesellschaft für Geowissenschaften (SDGG)
C3  - 67th Annual Meeting of the International Committee for Coal and Organic Petrology
T1  - Palaeoenvironmental reconstruction of the Kovin lignite deposit, Serbia
ER  - 
@conference{
author = "Mitrović, Danica D. and Đoković, Nataša and Životić, Dragana R. and Bechtel, Achim and Stojanović, Ksenija A.",
year = "2015",
url = "http://cherry.chem.bg.ac.rs/handle/123456789/2817",
publisher = "Schriftenreihe der Deutschen Gesellschaft für Geowissenschaften (SDGG)",
journal = "67th Annual Meeting of the International Committee for Coal and Organic Petrology",
title = "Palaeoenvironmental reconstruction of the Kovin lignite deposit, Serbia"
}
Mitrović, D. D., Đoković, N., Životić, D. R., Bechtel, A.,& Stojanović, K. A. (2015). Palaeoenvironmental reconstruction of the Kovin lignite deposit, Serbia.
67th Annual Meeting of the International Committee for Coal and Organic Petrology
Schriftenreihe der Deutschen Gesellschaft für Geowissenschaften (SDGG)..
Mitrović DD, Đoković N, Životić DR, Bechtel A, Stojanović KA. Palaeoenvironmental reconstruction of the Kovin lignite deposit, Serbia. 67th Annual Meeting of the International Committee for Coal and Organic Petrology. 2015;
Mitrović Danica D., Đoković Nataša, Životić Dragana R., Bechtel Achim, Stojanović Ksenija A., "Palaeoenvironmental reconstruction of the Kovin lignite deposit, Serbia" 67th Annual Meeting of the International Committee for Coal and Organic Petrology (2015)

Petrological and organic geochemical properties of lignite from the Kolubara and Kostolac basins, Serbia: Implication on Grindability Index (Reprinted)

Životić, Dragana R.; Bechtel, Achim; Sachsenhofer, Rainhard; Gratzer, Rainhard; Radic, Dejan; Obradović, Marko; Stojanović, Ksenija A.

(Elsevier Science Bv, Amsterdam, 2015)

TY  - JOUR
AU  - Životić, Dragana R.
AU  - Bechtel, Achim
AU  - Sachsenhofer, Rainhard
AU  - Gratzer, Rainhard
AU  - Radic, Dejan
AU  - Obradović, Marko
AU  - Stojanović, Ksenija A.
PY  - 2015
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/1710
AB  - The influence of different coal lithotypes on grindability has been investigated using lignite from two of the most important Upper Miocene lignite basins in Serbia (Kolubara and Kostolac). Yellow xylite-rich types demonstrated the most negative impact on Hardgrove Grindability Index (HGI). All different types of xylite-rich coal, as well as total xylite-rich coal from the Kolubara basin have a negative influence on the grindability properties, while only the yellow type of xylite-rich coal from the Kostolac showed a negative impact on HGI. Matrix coal does not show a clear effect on HGI. A negative correlation between textinite content and HGI is observed in both basins, whereas contents of other macerals do not show influence on grindability properties. Content of total organic carbon demonstrated the negative impact on HGI. Correlation analysis indicates that the negative impact of the yellow type of xylite-rich coal and the sum of total xylite-rich coal on the grindability properties partly can be related to content of total organic carbon and high amount of soluble organic matter. Matrix lithotype does not show any significant correlation with bulk geochemical parameters in both basins. The peat-forming vegetation of all samples from both basins were dominated by decay-resistant gymnosperm (coniferous) plants, belonging to one or several of the families Taxodiaceae, Podocarpaceae, Cupressaceae, Araucariaceae, Phyllocladaceae and Pinaceae. Lignite from the Kolubara basin is characterized by a higher contribution of angiosperm vegetation than coal from the Kostolac basin. Peatification of the Kolubara coal occurred under more oxic conditions than the Kostolac one. Analysis of biomarkers indicated that the negative impact of all types of xylite-rich coal from the Kolubara on HGI can be related to the higher proportion of angiosperms, abundance of mid-chain n-alkanes and sesquiterpenoids, aromatization of non-hopanoid triterpenoids and hopanoids, and intense degradation of wood tissues in a more oxic environment. The positive impact of matrix coal on HGI in the Kolubara samples can be attributed to elevated content of non-aromatic hopanoids and low amounts of aromatic non-hopanoid triterpenoids and sesquiterpenoids, which seems to hinder the grindability properties.
PB  - Elsevier Science Bv, Amsterdam
T2  - International Journal of Coal Geology
T1  - Petrological and organic geochemical properties of lignite from the Kolubara and Kostolac basins, Serbia: Implication on Grindability Index (Reprinted)
VL  - 139
SP  - 165
EP  - 183
DO  - 10.1016/j.coal.2014.10.006
ER  - 
@article{
author = "Životić, Dragana R. and Bechtel, Achim and Sachsenhofer, Rainhard and Gratzer, Rainhard and Radic, Dejan and Obradović, Marko and Stojanović, Ksenija A.",
year = "2015",
url = "http://cherry.chem.bg.ac.rs/handle/123456789/1710",
abstract = "The influence of different coal lithotypes on grindability has been investigated using lignite from two of the most important Upper Miocene lignite basins in Serbia (Kolubara and Kostolac). Yellow xylite-rich types demonstrated the most negative impact on Hardgrove Grindability Index (HGI). All different types of xylite-rich coal, as well as total xylite-rich coal from the Kolubara basin have a negative influence on the grindability properties, while only the yellow type of xylite-rich coal from the Kostolac showed a negative impact on HGI. Matrix coal does not show a clear effect on HGI. A negative correlation between textinite content and HGI is observed in both basins, whereas contents of other macerals do not show influence on grindability properties. Content of total organic carbon demonstrated the negative impact on HGI. Correlation analysis indicates that the negative impact of the yellow type of xylite-rich coal and the sum of total xylite-rich coal on the grindability properties partly can be related to content of total organic carbon and high amount of soluble organic matter. Matrix lithotype does not show any significant correlation with bulk geochemical parameters in both basins. The peat-forming vegetation of all samples from both basins were dominated by decay-resistant gymnosperm (coniferous) plants, belonging to one or several of the families Taxodiaceae, Podocarpaceae, Cupressaceae, Araucariaceae, Phyllocladaceae and Pinaceae. Lignite from the Kolubara basin is characterized by a higher contribution of angiosperm vegetation than coal from the Kostolac basin. Peatification of the Kolubara coal occurred under more oxic conditions than the Kostolac one. Analysis of biomarkers indicated that the negative impact of all types of xylite-rich coal from the Kolubara on HGI can be related to the higher proportion of angiosperms, abundance of mid-chain n-alkanes and sesquiterpenoids, aromatization of non-hopanoid triterpenoids and hopanoids, and intense degradation of wood tissues in a more oxic environment. The positive impact of matrix coal on HGI in the Kolubara samples can be attributed to elevated content of non-aromatic hopanoids and low amounts of aromatic non-hopanoid triterpenoids and sesquiterpenoids, which seems to hinder the grindability properties.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "International Journal of Coal Geology",
title = "Petrological and organic geochemical properties of lignite from the Kolubara and Kostolac basins, Serbia: Implication on Grindability Index (Reprinted)",
volume = "139",
pages = "165-183",
doi = "10.1016/j.coal.2014.10.006"
}
Životić, D. R., Bechtel, A., Sachsenhofer, R., Gratzer, R., Radic, D., Obradović, M.,& Stojanović, K. A. (2015). Petrological and organic geochemical properties of lignite from the Kolubara and Kostolac basins, Serbia: Implication on Grindability Index (Reprinted).
International Journal of Coal Geology
Elsevier Science Bv, Amsterdam., 139, 165-183.
https://doi.org/10.1016/j.coal.2014.10.006
Životić DR, Bechtel A, Sachsenhofer R, Gratzer R, Radic D, Obradović M, Stojanović KA. Petrological and organic geochemical properties of lignite from the Kolubara and Kostolac basins, Serbia: Implication on Grindability Index (Reprinted). International Journal of Coal Geology. 2015;139:165-183
Životić Dragana R., Bechtel Achim, Sachsenhofer Rainhard, Gratzer Rainhard, Radic Dejan, Obradović Marko, Stojanović Ksenija A., "Petrological and organic geochemical properties of lignite from the Kolubara and Kostolac basins, Serbia: Implication on Grindability Index (Reprinted)" International Journal of Coal Geology, 139 (2015):165-183,
https://doi.org/10.1016/j.coal.2014.10.006 .
2
1
2

Petrological and organic geochemical properties of lignite from the Kolubara and Kostolac basins, Serbia: Implication on Grindability Index

Životić, Dragana R.; Bechtel, Achim; Sachsenhofer, Rainhard; Gratzer, Rainhard; Radic, Dejan; Obradović, Marko; Stojanović, Ksenija A.

(Elsevier Science Bv, Amsterdam, 2014)

TY  - JOUR
AU  - Životić, Dragana R.
AU  - Bechtel, Achim
AU  - Sachsenhofer, Rainhard
AU  - Gratzer, Rainhard
AU  - Radic, Dejan
AU  - Obradović, Marko
AU  - Stojanović, Ksenija A.
PY  - 2014
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/1867
AB  - The influence of different coal lithotypes on grindability has been investigated using lignite from two of the most important Upper Miocene lignite basins in Serbia (Kolubara and Kostolac). Yellow xylite-rich types demonstrated the most negative impact on Hardgrove Grindability Index (HGI). All different types of xylite-rich coal, as well as total xylite-rich coal from the Kolubara basin have a negative influence on the grindability properties, while only the yellow type of xylite-rich coal from the Kostolac showed a negative impact on HGI. Matrix coal does not show a clear effect on HGI. A negative correlation between textinite content and HGI is observed in both basins, whereas contents of other macerals do not show influence on grindability properties. Content of total organic carbon demonstrated the negative impact on HGI. Correlation analysis indicates that the negative impact of the yellow type of xylite-rich coal and the sum of total xylite-rich coal on the grindability properties partly can be related to content of total organic carbon and high amount of soluble organic matter. Matrix lithotype does not show any significant correlation with bulk geochemical parameters in both basins. The peat-forming vegetation of all samples from both basins were dominated by decay-resistant gymnosperm (coniferous) plants, belonging to one or several of the families Taxodiaceae, Podocarpaceae, Cupressaceae, Araucariaceae, Phyllocladaceae and Pinaceae. Lignite from the Kolubara basin is characterized by a higher contribution of angiosperm vegetation than coal from the Kostolac basin. Peatification of the Kolubara coal occurred under more oxic conditions than the Kostolac one. Analysis of biomarkers indicated that the negative impact of all types of xylite-rich coal from the Kolubara on HGI can be related to the higher proportion of angiosperms, abundance of mid-chain n-alkanes and sesquiterpenoids, aromatization of non-hopanoid triterpenoids and hopanoids, and intense degradation of wood tissues in a more oxic environment. The positive impact of matrix coal on HGI in the Kolubara samples can be attributed to elevated content of non-aromatic hopanoids and low amounts of aromatic non-hopanoid triterpenoids and sesquiterpenoids, which seems to hinder the grindability properties. (C) 2014 Elsevier B.V. All rights reserved.
PB  - Elsevier Science Bv, Amsterdam
T2  - International Journal of Coal Geology
T1  - Petrological and organic geochemical properties of lignite from the Kolubara and Kostolac basins, Serbia: Implication on Grindability Index
VL  - 131
SP  - 344
EP  - 362
DO  - 10.1016/j.coal.2014.07.004
ER  - 
@article{
author = "Životić, Dragana R. and Bechtel, Achim and Sachsenhofer, Rainhard and Gratzer, Rainhard and Radic, Dejan and Obradović, Marko and Stojanović, Ksenija A.",
year = "2014",
url = "http://cherry.chem.bg.ac.rs/handle/123456789/1867",
abstract = "The influence of different coal lithotypes on grindability has been investigated using lignite from two of the most important Upper Miocene lignite basins in Serbia (Kolubara and Kostolac). Yellow xylite-rich types demonstrated the most negative impact on Hardgrove Grindability Index (HGI). All different types of xylite-rich coal, as well as total xylite-rich coal from the Kolubara basin have a negative influence on the grindability properties, while only the yellow type of xylite-rich coal from the Kostolac showed a negative impact on HGI. Matrix coal does not show a clear effect on HGI. A negative correlation between textinite content and HGI is observed in both basins, whereas contents of other macerals do not show influence on grindability properties. Content of total organic carbon demonstrated the negative impact on HGI. Correlation analysis indicates that the negative impact of the yellow type of xylite-rich coal and the sum of total xylite-rich coal on the grindability properties partly can be related to content of total organic carbon and high amount of soluble organic matter. Matrix lithotype does not show any significant correlation with bulk geochemical parameters in both basins. The peat-forming vegetation of all samples from both basins were dominated by decay-resistant gymnosperm (coniferous) plants, belonging to one or several of the families Taxodiaceae, Podocarpaceae, Cupressaceae, Araucariaceae, Phyllocladaceae and Pinaceae. Lignite from the Kolubara basin is characterized by a higher contribution of angiosperm vegetation than coal from the Kostolac basin. Peatification of the Kolubara coal occurred under more oxic conditions than the Kostolac one. Analysis of biomarkers indicated that the negative impact of all types of xylite-rich coal from the Kolubara on HGI can be related to the higher proportion of angiosperms, abundance of mid-chain n-alkanes and sesquiterpenoids, aromatization of non-hopanoid triterpenoids and hopanoids, and intense degradation of wood tissues in a more oxic environment. The positive impact of matrix coal on HGI in the Kolubara samples can be attributed to elevated content of non-aromatic hopanoids and low amounts of aromatic non-hopanoid triterpenoids and sesquiterpenoids, which seems to hinder the grindability properties. (C) 2014 Elsevier B.V. All rights reserved.",
publisher = "Elsevier Science Bv, Amsterdam",
journal = "International Journal of Coal Geology",
title = "Petrological and organic geochemical properties of lignite from the Kolubara and Kostolac basins, Serbia: Implication on Grindability Index",
volume = "131",
pages = "344-362",
doi = "10.1016/j.coal.2014.07.004"
}
Životić, D. R., Bechtel, A., Sachsenhofer, R., Gratzer, R., Radic, D., Obradović, M.,& Stojanović, K. A. (2014). Petrological and organic geochemical properties of lignite from the Kolubara and Kostolac basins, Serbia: Implication on Grindability Index.
International Journal of Coal Geology
Elsevier Science Bv, Amsterdam., 131, 344-362.
https://doi.org/10.1016/j.coal.2014.07.004
Životić DR, Bechtel A, Sachsenhofer R, Gratzer R, Radic D, Obradović M, Stojanović KA. Petrological and organic geochemical properties of lignite from the Kolubara and Kostolac basins, Serbia: Implication on Grindability Index. International Journal of Coal Geology. 2014;131:344-362
Životić Dragana R., Bechtel Achim, Sachsenhofer Rainhard, Gratzer Rainhard, Radic Dejan, Obradović Marko, Stojanović Ksenija A., "Petrological and organic geochemical properties of lignite from the Kolubara and Kostolac basins, Serbia: Implication on Grindability Index" International Journal of Coal Geology, 131 (2014):344-362,
https://doi.org/10.1016/j.coal.2014.07.004 .
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