TY  - JOUR
AU  - Stojanović, Ksenija A.
AU  - Kostić, Aleksandar Ž.
AU  - Šajnović, Aleksandra
AU  - Pevneva, G. S.
AU  - Golovko, A. K.
AU  - Jovančićević, Branimir
PY  - 2011
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1182
AB  - The possibility of using the data on the hydrocarbon composition obtained by analysis of hydrocarbon concentrates for geochemical studies has been shown on the example of Pannonian Basin (Serbia) crude oils of different genetic types and different degrees of thermal maturity and biodegradation. A high convergence of the values of geochemical parameters calculated on the basis of the composition of steranes and terpanes, alkylnaphthalenes, phenanthrenes, and dibenzothiophenenes in hydrocarbon concentrates and chromatographic fractions isolated from them has been found by correlation analysis.
PB  - Maik Nauka/Interperiodica/Springer, New York
T2  - Petroleum Chemistry
T1  - Validation of data on polycyclic biomarkers, naphthalenes, phenanthrenes, and alkyldibenzothiophenes obtained by gas chromatographic-mass spectrometric analysis of hydrocarbon concentrates
VL  - 51
IS  - 4
SP  - 243
EP  - 251
DO  - 10.1134/S0965544111040098
ER  - 

@article{
author = "Stojanović, Ksenija A. and Kostić, Aleksandar Ž. and Šajnović, Aleksandra and Pevneva, G. S. and Golovko, A. K. and Jovančićević, Branimir",
year = "2011",
abstract = "The possibility of using the data on the hydrocarbon composition obtained by analysis of hydrocarbon concentrates for geochemical studies has been shown on the example of Pannonian Basin (Serbia) crude oils of different genetic types and different degrees of thermal maturity and biodegradation. A high convergence of the values of geochemical parameters calculated on the basis of the composition of steranes and terpanes, alkylnaphthalenes, phenanthrenes, and dibenzothiophenenes in hydrocarbon concentrates and chromatographic fractions isolated from them has been found by correlation analysis.",
publisher = "Maik Nauka/Interperiodica/Springer, New York",
journal = "Petroleum Chemistry",
title = "Validation of data on polycyclic biomarkers, naphthalenes, phenanthrenes, and alkyldibenzothiophenes obtained by gas chromatographic-mass spectrometric analysis of hydrocarbon concentrates",
volume = "51",
number = "4",
pages = "243-251",
doi = "10.1134/S0965544111040098"
}

Stojanović, K. A., Kostić, A. Ž., Šajnović, A., Pevneva, G. S., Golovko, A. K.,& Jovančićević, B.. (2011). Validation of data on polycyclic biomarkers, naphthalenes, phenanthrenes, and alkyldibenzothiophenes obtained by gas chromatographic-mass spectrometric analysis of hydrocarbon concentrates. in Petroleum Chemistry
Maik Nauka/Interperiodica/Springer, New York., 51(4), 243-251.
https://doi.org/10.1134/S0965544111040098

Stojanović KA, Kostić AŽ, Šajnović A, Pevneva GS, Golovko AK, Jovančićević B. Validation of data on polycyclic biomarkers, naphthalenes, phenanthrenes, and alkyldibenzothiophenes obtained by gas chromatographic-mass spectrometric analysis of hydrocarbon concentrates. in Petroleum Chemistry. 2011;51(4):243-251.
doi:10.1134/S0965544111040098 .

Stojanović, Ksenija A., Kostić, Aleksandar Ž., Šajnović, Aleksandra, Pevneva, G. S., Golovko, A. K., Jovančićević, Branimir, "Validation of data on polycyclic biomarkers, naphthalenes, phenanthrenes, and alkyldibenzothiophenes obtained by gas chromatographic-mass spectrometric analysis of hydrocarbon concentrates" in Petroleum Chemistry, 51, no. 4 (2011):243-251,
https://doi.org/10.1134/S0965544111040098 . .

TY  - JOUR
AU  - Šajnović, Aleksandra
AU  - Stojanović, Ksenija A.
AU  - Simic, V.
AU  - Pevneva, G. S.
AU  - Golovko, A. K.
AU  - Jovančićević, Branimir
PY  - 2011
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1208
AB  - Liquid thermolysis products of various types of immature kerogen from sedimentary lacustrine rocks from the Valjevo-Mionica basin in Serbia were studied to evaluate the generation potential of kerogen contained in the organic matter (OM) of the rocks, determine the composition of the biomarkers and alkylaromatics in the liquid thermolysis products, and elucidate the effect of Pt4+ and Ru3+ ions (which were added in the form of inorganic salts) on the yield and hydrocarbon composition of the liquid thermolysis products. For this purpose, representative bitumen-free samples A and B of the sedimentary rocks were subjected to thermolysis under various conditions. Rock A contains high amount of immature organic matter, which is dominated by kerogen type I/II and was generated under strongly reduced sedimentation conditions at a high salinity. Sample B is poorer in immature OM than sample A, and the OM of the former contains kerogen type II/III and was generated predominantly in a reduced environment. The content of the liquid products and the concentrations of hydrocarbons obtained in the course of thermolysis of bitumen-free sample A and the typical oil distribution of the biomarkers and alkylaromatics in the thermolysis products confirm a high generation potential of OM in this rock. In all of our experiments on the thermolysis of bitumen-free sample B, the yield of liquid products and hydrocarbons is low. According to the kerogen type, the thermolysis of this rock generates much gases. The Pt4+ and Ru3+ ions (added in the form of simple inorganic salts) increased the yield of liquid (kerogen type I/II) and gaseous (kerogen type II/III) products. During the thermolysis of various type of immature kerogen in the lacustrine sedimentary rocks at a temperature of 400A degrees C, the OM attained maturation corresponding to the early catagenesis level. Saturated biomarkers and alkylaomatics in the thermolysis products of both samples display typical oil distributions. The type of the source OM most strongly affects the composition of n-alkanes and alkylnaphthalenes. The metal ions used in this research served as catalysts for the methylation process during the thermolysis of immature kerogen, regardless of its type. The effect of the Pt4+ and Ru3+ ions on other transformations of the hydrocarbons, for example, the destruction of high-molecular n-alkanes to low-molecular ones and on isomerization reactions in molecules of polycyclic biomarkers and alkylaromatics to thermodynamically more stable isomers in the thermolysis products is controlled, first of all, by the type of the source OM.
PB  - Maik Nauka/Interperiodica/Springer, New York
T2  - Geochemistry International
T1  - Studying of liquid thermolysis products of various types of immature kerogen in sedimentary lacustrine rocks from the valjevo-Mionica basin, Serbia, and the effect of Pt4+ and Ru3+ ions on their yield and the hydrocarbon composition
VL  - 49
IS  - 10
SP  - 1022
EP  - 1034
DO  - 10.1134/S0016702911100053
ER  - 

@article{
author = "Šajnović, Aleksandra and Stojanović, Ksenija A. and Simic, V. and Pevneva, G. S. and Golovko, A. K. and Jovančićević, Branimir",
year = "2011",
abstract = "Liquid thermolysis products of various types of immature kerogen from sedimentary lacustrine rocks from the Valjevo-Mionica basin in Serbia were studied to evaluate the generation potential of kerogen contained in the organic matter (OM) of the rocks, determine the composition of the biomarkers and alkylaromatics in the liquid thermolysis products, and elucidate the effect of Pt4+ and Ru3+ ions (which were added in the form of inorganic salts) on the yield and hydrocarbon composition of the liquid thermolysis products. For this purpose, representative bitumen-free samples A and B of the sedimentary rocks were subjected to thermolysis under various conditions. Rock A contains high amount of immature organic matter, which is dominated by kerogen type I/II and was generated under strongly reduced sedimentation conditions at a high salinity. Sample B is poorer in immature OM than sample A, and the OM of the former contains kerogen type II/III and was generated predominantly in a reduced environment. The content of the liquid products and the concentrations of hydrocarbons obtained in the course of thermolysis of bitumen-free sample A and the typical oil distribution of the biomarkers and alkylaromatics in the thermolysis products confirm a high generation potential of OM in this rock. In all of our experiments on the thermolysis of bitumen-free sample B, the yield of liquid products and hydrocarbons is low. According to the kerogen type, the thermolysis of this rock generates much gases. The Pt4+ and Ru3+ ions (added in the form of simple inorganic salts) increased the yield of liquid (kerogen type I/II) and gaseous (kerogen type II/III) products. During the thermolysis of various type of immature kerogen in the lacustrine sedimentary rocks at a temperature of 400A degrees C, the OM attained maturation corresponding to the early catagenesis level. Saturated biomarkers and alkylaomatics in the thermolysis products of both samples display typical oil distributions. The type of the source OM most strongly affects the composition of n-alkanes and alkylnaphthalenes. The metal ions used in this research served as catalysts for the methylation process during the thermolysis of immature kerogen, regardless of its type. The effect of the Pt4+ and Ru3+ ions on other transformations of the hydrocarbons, for example, the destruction of high-molecular n-alkanes to low-molecular ones and on isomerization reactions in molecules of polycyclic biomarkers and alkylaromatics to thermodynamically more stable isomers in the thermolysis products is controlled, first of all, by the type of the source OM.",
publisher = "Maik Nauka/Interperiodica/Springer, New York",
journal = "Geochemistry International",
title = "Studying of liquid thermolysis products of various types of immature kerogen in sedimentary lacustrine rocks from the valjevo-Mionica basin, Serbia, and the effect of Pt4+ and Ru3+ ions on their yield and the hydrocarbon composition",
volume = "49",
number = "10",
pages = "1022-1034",
doi = "10.1134/S0016702911100053"
}

Šajnović, A., Stojanović, K. A., Simic, V., Pevneva, G. S., Golovko, A. K.,& Jovančićević, B.. (2011). Studying of liquid thermolysis products of various types of immature kerogen in sedimentary lacustrine rocks from the valjevo-Mionica basin, Serbia, and the effect of Pt4+ and Ru3+ ions on their yield and the hydrocarbon composition. in Geochemistry International
Maik Nauka/Interperiodica/Springer, New York., 49(10), 1022-1034.
https://doi.org/10.1134/S0016702911100053

Šajnović A, Stojanović KA, Simic V, Pevneva GS, Golovko AK, Jovančićević B. Studying of liquid thermolysis products of various types of immature kerogen in sedimentary lacustrine rocks from the valjevo-Mionica basin, Serbia, and the effect of Pt4+ and Ru3+ ions on their yield and the hydrocarbon composition. in Geochemistry International. 2011;49(10):1022-1034.
doi:10.1134/S0016702911100053 .

Šajnović, Aleksandra, Stojanović, Ksenija A., Simic, V., Pevneva, G. S., Golovko, A. K., Jovančićević, Branimir, "Studying of liquid thermolysis products of various types of immature kerogen in sedimentary lacustrine rocks from the valjevo-Mionica basin, Serbia, and the effect of Pt4+ and Ru3+ ions on their yield and the hydrocarbon composition" in Geochemistry International, 49, no. 10 (2011):1022-1034,
https://doi.org/10.1134/S0016702911100053 . .

TY  - JOUR
AU  - Šajnović, Aleksandra
AU  - Stojanović, Ksenija A.
AU  - Pevneva, G. S.
AU  - Golovko, A. K.
AU  - Jovančićević, Branimir
PY  - 2010
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/1129
AB  - This paper reports an investigation of 60 samples of lacustrine sedimentary rocks of Neogene age lying at depths of 0-400 m in the Valjevo-Mionica Basin, Serbia. The goal of the study was to determine the origin and type of primary organic matter (OM), the degree of thermal alteration, the generation potential of OM from the rocks of this basin, and conditions in the sedimentation environment during the formation of the rocks. The potential of OM of the rocks was estimated on the basis of the thermolysis of a representative sample after its preliminary debituminization. Using data on C(org) and bitumen contents and S1, S2, and HI Rock-Eval pyrolysis parameters, the samples were divided into three groups. The first and second groups include rocks recovered from depths up to 200 m, and the third group comprises samples from depths of 200-400 m. The investigation of the inorganic constituents of the rocks and biomarker composition showed that the samples of each of these groups were formed under significantly different climatic conditions, which influenced both the composition of primary organic matter and the conditions of the sedimentation environment, which eventually affected the abundance and quality of OM in the rocks. The yield of the liquid fraction and concentration of hydrocarbons obtained during the thermolysis of the debituminized sample of the first group (showing the highest C(org) content), the character of n-alkane and sterane distribution in the saturated fraction of thermolysis products, and the thermal maturity indices calculated from the composition of steranes supported the high generation potential of OM from these rocks.
PB  - Maik Nauka/Interperiodica/Springer, New York
T2  - Geochemistry International
T1  - Origin, organic geochemistry, and estimation of the generation potential of Neogene lacustrine sediments from the Valjevo-Mionica Basin, Serbia
VL  - 48
IS  - 7
SP  - 678
EP  - 694
DO  - 10.1134/S0016702910070050
ER  - 

@article{
author = "Šajnović, Aleksandra and Stojanović, Ksenija A. and Pevneva, G. S. and Golovko, A. K. and Jovančićević, Branimir",
year = "2010",
abstract = "This paper reports an investigation of 60 samples of lacustrine sedimentary rocks of Neogene age lying at depths of 0-400 m in the Valjevo-Mionica Basin, Serbia. The goal of the study was to determine the origin and type of primary organic matter (OM), the degree of thermal alteration, the generation potential of OM from the rocks of this basin, and conditions in the sedimentation environment during the formation of the rocks. The potential of OM of the rocks was estimated on the basis of the thermolysis of a representative sample after its preliminary debituminization. Using data on C(org) and bitumen contents and S1, S2, and HI Rock-Eval pyrolysis parameters, the samples were divided into three groups. The first and second groups include rocks recovered from depths up to 200 m, and the third group comprises samples from depths of 200-400 m. The investigation of the inorganic constituents of the rocks and biomarker composition showed that the samples of each of these groups were formed under significantly different climatic conditions, which influenced both the composition of primary organic matter and the conditions of the sedimentation environment, which eventually affected the abundance and quality of OM in the rocks. The yield of the liquid fraction and concentration of hydrocarbons obtained during the thermolysis of the debituminized sample of the first group (showing the highest C(org) content), the character of n-alkane and sterane distribution in the saturated fraction of thermolysis products, and the thermal maturity indices calculated from the composition of steranes supported the high generation potential of OM from these rocks.",
publisher = "Maik Nauka/Interperiodica/Springer, New York",
journal = "Geochemistry International",
title = "Origin, organic geochemistry, and estimation of the generation potential of Neogene lacustrine sediments from the Valjevo-Mionica Basin, Serbia",
volume = "48",
number = "7",
pages = "678-694",
doi = "10.1134/S0016702910070050"
}

Šajnović, A., Stojanović, K. A., Pevneva, G. S., Golovko, A. K.,& Jovančićević, B.. (2010). Origin, organic geochemistry, and estimation of the generation potential of Neogene lacustrine sediments from the Valjevo-Mionica Basin, Serbia. in Geochemistry International
Maik Nauka/Interperiodica/Springer, New York., 48(7), 678-694.
https://doi.org/10.1134/S0016702910070050

Šajnović A, Stojanović KA, Pevneva GS, Golovko AK, Jovančićević B. Origin, organic geochemistry, and estimation of the generation potential of Neogene lacustrine sediments from the Valjevo-Mionica Basin, Serbia. in Geochemistry International. 2010;48(7):678-694.
doi:10.1134/S0016702910070050 .

Šajnović, Aleksandra, Stojanović, Ksenija A., Pevneva, G. S., Golovko, A. K., Jovančićević, Branimir, "Origin, organic geochemistry, and estimation of the generation potential of Neogene lacustrine sediments from the Valjevo-Mionica Basin, Serbia" in Geochemistry International, 48, no. 7 (2010):678-694,
https://doi.org/10.1134/S0016702910070050 . .

TY  - JOUR
AU  - Stojanović, Ksenija A.
AU  - Jovančićević, Branimir
AU  - Vitorović, Dragomir K.
AU  - Pevneva, G. S.
AU  - Golovko, Ju. A.
AU  - Golovko, A. K.
PY  - 2007
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/864
AB  - Aiming at improved classification of crude oils, naphthalene and phenanthrene isomerization and dealkylation processes were considered in detail as a possible basis to select new maturation parameters. Crude oils originating from the Banat depression (Southeastern Pannonian Basin, Serbia) were used as objects of our study. Four new maturation parameters are proposed in this paper. Two of them are based on dimethylnaphthalene (DMN) and trimethylnaphthalene (TMN) isomerization reactions: DNx = (1,3-DMN + 1,6-DMN)/(1,4-DMN + 1,5-DMN) and TNy = (1,3,6-TMN + 1,3,7-TMN)/(1,3,5-TMN + 1,4,6-TMN). The other two are based on demethylation of dimethyl-and trimethylphenanthrenes (DMP and TMP) into corresponding methylphenanthrenes (MP): MDR = Sigma MP/Sigma DMP and MTR = Sigma MP/Sigma TMP. The new parameters' advantageous applicability was demonstrated by factor analysis, comparing them with maturation parameters known from literature.
PB  - Maik Nauka/Interperiodica/Springer, New York
T2  - Geochemistry International
T1  - New maturation parameters based on naphthalene and phenanthrene isomerization and dealkylation processes aimed at improved classification of crude oils (Southeastern Pannonian Basin, Serbia)
VL  - 45
IS  - 8
SP  - 781
EP  - 797
DO  - 10.1134/S0016702907080058
ER  - 

@article{
author = "Stojanović, Ksenija A. and Jovančićević, Branimir and Vitorović, Dragomir K. and Pevneva, G. S. and Golovko, Ju. A. and Golovko, A. K.",
year = "2007",
abstract = "Aiming at improved classification of crude oils, naphthalene and phenanthrene isomerization and dealkylation processes were considered in detail as a possible basis to select new maturation parameters. Crude oils originating from the Banat depression (Southeastern Pannonian Basin, Serbia) were used as objects of our study. Four new maturation parameters are proposed in this paper. Two of them are based on dimethylnaphthalene (DMN) and trimethylnaphthalene (TMN) isomerization reactions: DNx = (1,3-DMN + 1,6-DMN)/(1,4-DMN + 1,5-DMN) and TNy = (1,3,6-TMN + 1,3,7-TMN)/(1,3,5-TMN + 1,4,6-TMN). The other two are based on demethylation of dimethyl-and trimethylphenanthrenes (DMP and TMP) into corresponding methylphenanthrenes (MP): MDR = Sigma MP/Sigma DMP and MTR = Sigma MP/Sigma TMP. The new parameters' advantageous applicability was demonstrated by factor analysis, comparing them with maturation parameters known from literature.",
publisher = "Maik Nauka/Interperiodica/Springer, New York",
journal = "Geochemistry International",
title = "New maturation parameters based on naphthalene and phenanthrene isomerization and dealkylation processes aimed at improved classification of crude oils (Southeastern Pannonian Basin, Serbia)",
volume = "45",
number = "8",
pages = "781-797",
doi = "10.1134/S0016702907080058"
}

Stojanović, K. A., Jovančićević, B., Vitorović, D. K., Pevneva, G. S., Golovko, Ju. A.,& Golovko, A. K.. (2007). New maturation parameters based on naphthalene and phenanthrene isomerization and dealkylation processes aimed at improved classification of crude oils (Southeastern Pannonian Basin, Serbia). in Geochemistry International
Maik Nauka/Interperiodica/Springer, New York., 45(8), 781-797.
https://doi.org/10.1134/S0016702907080058

Stojanović KA, Jovančićević B, Vitorović DK, Pevneva GS, Golovko JA, Golovko AK. New maturation parameters based on naphthalene and phenanthrene isomerization and dealkylation processes aimed at improved classification of crude oils (Southeastern Pannonian Basin, Serbia). in Geochemistry International. 2007;45(8):781-797.
doi:10.1134/S0016702907080058 .

Stojanović, Ksenija A., Jovančićević, Branimir, Vitorović, Dragomir K., Pevneva, G. S., Golovko, Ju. A., Golovko, A. K., "New maturation parameters based on naphthalene and phenanthrene isomerization and dealkylation processes aimed at improved classification of crude oils (Southeastern Pannonian Basin, Serbia)" in Geochemistry International, 45, no. 8 (2007):781-797,
https://doi.org/10.1134/S0016702907080058 . .