TY  - JOUR
AU  - Đokić-Stojanović, Dušica R.
AU  - Todorović, Zoran B.
AU  - Troter, Dragan Z.
AU  - Stamenković, Olivera S.
AU  - Veselinović, Ljiljana M.
AU  - Zdujić, Miodrag V.
AU  - Manojlović, Dragan D.
AU  - Veljković, Vlada B.
PY  - 2019
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3042
AB  - Ten organic solvents (triethanolamine, diethanolamine, ethylene glycol, methyl ethyl ketone, n-hexane, triethylamine, ethylene glycol dimethyl ether, glycerol, tetrahydrofuran and dioxane) were applied as cosolvents in the CaO-catalyzed ethanolysis of sunflower oil performed in a batch stirred reactor under the following reaction conditions: temperature 70 °C, ethanol-to-oil mole ratio 12:1, initial catalyst concentration 1.374 mol·L -1 and amount of cosolvent 20 % based on the oil amount. The main goals were to assess the effect of the used cosolvents on the synthesis of fatty acid ethyl esters (FAEE) and to select the most efficient one with respect to the final FAEE content, reaction duration and safety profile. In the absence of any cosolvent, the reaction was rather slow, providing a FAEE content of only 89.7±1.7 % after 4 h. Of the tested cosolvents, diethanolamine, triethanolamine and ethylene glycol significantly accelerated the ethanolysis reaction, whereby the last two provided a final FAEE content of 93.1±2.1 and 94.1±1.5 %, respectively, within 0.5 h. However, because of its safety profile, triethanolamine was selected as the best cosolvent for the ethanolysis of sunflower oil catalyzed by calcined CaO.
T2  - Journal of the Serbian Chemical Society
T1  - Influence of various cosolvents on the calcium oxide-catalyzed ethanolysis of sunflower oil
VL  - 84
IS  - 3
SP  - 253
EP  - 265
DO  - 10.2298/JSC180827007D
ER  - 

@article{
author = "Đokić-Stojanović, Dušica R. and Todorović, Zoran B. and Troter, Dragan Z. and Stamenković, Olivera S. and Veselinović, Ljiljana M. and Zdujić, Miodrag V. and Manojlović, Dragan D. and Veljković, Vlada B.",
year = "2019",
abstract = "Ten organic solvents (triethanolamine, diethanolamine, ethylene glycol, methyl ethyl ketone, n-hexane, triethylamine, ethylene glycol dimethyl ether, glycerol, tetrahydrofuran and dioxane) were applied as cosolvents in the CaO-catalyzed ethanolysis of sunflower oil performed in a batch stirred reactor under the following reaction conditions: temperature 70 °C, ethanol-to-oil mole ratio 12:1, initial catalyst concentration 1.374 mol·L -1 and amount of cosolvent 20 % based on the oil amount. The main goals were to assess the effect of the used cosolvents on the synthesis of fatty acid ethyl esters (FAEE) and to select the most efficient one with respect to the final FAEE content, reaction duration and safety profile. In the absence of any cosolvent, the reaction was rather slow, providing a FAEE content of only 89.7±1.7 % after 4 h. Of the tested cosolvents, diethanolamine, triethanolamine and ethylene glycol significantly accelerated the ethanolysis reaction, whereby the last two provided a final FAEE content of 93.1±2.1 and 94.1±1.5 %, respectively, within 0.5 h. However, because of its safety profile, triethanolamine was selected as the best cosolvent for the ethanolysis of sunflower oil catalyzed by calcined CaO.",
journal = "Journal of the Serbian Chemical Society",
title = "Influence of various cosolvents on the calcium oxide-catalyzed ethanolysis of sunflower oil",
volume = "84",
number = "3",
pages = "253-265",
doi = "10.2298/JSC180827007D"
}

Đokić-Stojanović, D. R., Todorović, Z. B., Troter, D. Z., Stamenković, O. S., Veselinović, L. M., Zdujić, M. V., Manojlović, D. D.,& Veljković, V. B.. (2019). Influence of various cosolvents on the calcium oxide-catalyzed ethanolysis of sunflower oil. in Journal of the Serbian Chemical Society, 84(3), 253-265.
https://doi.org/10.2298/JSC180827007D

Đokić-Stojanović DR, Todorović ZB, Troter DZ, Stamenković OS, Veselinović LM, Zdujić MV, Manojlović DD, Veljković VB. Influence of various cosolvents on the calcium oxide-catalyzed ethanolysis of sunflower oil. in Journal of the Serbian Chemical Society. 2019;84(3):253-265.
doi:10.2298/JSC180827007D .

Đokić-Stojanović, Dušica R., Todorović, Zoran B., Troter, Dragan Z., Stamenković, Olivera S., Veselinović, Ljiljana M., Zdujić, Miodrag V., Manojlović, Dragan D., Veljković, Vlada B., "Influence of various cosolvents on the calcium oxide-catalyzed ethanolysis of sunflower oil" in Journal of the Serbian Chemical Society, 84, no. 3 (2019):253-265,
https://doi.org/10.2298/JSC180827007D . .

TY  - JOUR
AU  - Đokić-Stojanović, Dušica R.
AU  - Todorović, Zoran B.
AU  - Troter, Dragan Z.
AU  - Stamenković, Olivera S.
AU  - Veselinović, Ljiljana M.
AU  - Zdujić, Miodrag V.
AU  - Manojlović, Dragan D.
AU  - Veljković, Vlada B.
PY  - 2019
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3797
AB  - Triethanolamine was applied as an efficient „green“ cosolvent for biodiesel production by CaO-catalyzed ethanolysis of sunflower oil. The reaction was conducted in a batch stirred reactor and optimized with respect to the reaction temperature (61.6-78.4 °C), the ethanol-to-oil molar ratio (7:1-17:1) and the cosolvent loading (3-36 % of the oil weight) by using a rotatable central composite design (RCCD) combined with the response surface methodology (RSM). The optimal reaction conditions were found to be: the ethanol-to-oil molar ratio of 9:1, the reaction temperature of 75 °C and the cosolvent loading of 30 % to oil weight, which resulted in the predicted and actual fatty acid ethyl ester (FAEE) contents of 98.8 % and 97.9±1.3 %, respectively, achieved within only 20 min of the reaction. Also, high FAEE contents were obtained with expired sunflower oil, hempseed oil and waste lard. X-ray diffraction analysis (XRD) was used to understand the changes in the CaO phase. The CaO catalyst can be used without any treatment in two consecutive cycles. Due to the calcium leaching into the product, an additional purification stage must be included in the overall process.
PB  - Association of Chemists and Chemical Engineers of Serbia
T2  - Hemijska Industrija
T1  - Triethanolamine as an efficient cosolvent for biodiesel production by cao-catalyzed sunflower oil ethanolysis: An optimization study
VL  - 73
IS  - 6
SP  - 351
EP  - 362
DO  - 10.2298/HEMIND190822033D
ER  - 

@article{
author = "Đokić-Stojanović, Dušica R. and Todorović, Zoran B. and Troter, Dragan Z. and Stamenković, Olivera S. and Veselinović, Ljiljana M. and Zdujić, Miodrag V. and Manojlović, Dragan D. and Veljković, Vlada B.",
year = "2019",
abstract = "Triethanolamine was applied as an efficient „green“ cosolvent for biodiesel production by CaO-catalyzed ethanolysis of sunflower oil. The reaction was conducted in a batch stirred reactor and optimized with respect to the reaction temperature (61.6-78.4 °C), the ethanol-to-oil molar ratio (7:1-17:1) and the cosolvent loading (3-36 % of the oil weight) by using a rotatable central composite design (RCCD) combined with the response surface methodology (RSM). The optimal reaction conditions were found to be: the ethanol-to-oil molar ratio of 9:1, the reaction temperature of 75 °C and the cosolvent loading of 30 % to oil weight, which resulted in the predicted and actual fatty acid ethyl ester (FAEE) contents of 98.8 % and 97.9±1.3 %, respectively, achieved within only 20 min of the reaction. Also, high FAEE contents were obtained with expired sunflower oil, hempseed oil and waste lard. X-ray diffraction analysis (XRD) was used to understand the changes in the CaO phase. The CaO catalyst can be used without any treatment in two consecutive cycles. Due to the calcium leaching into the product, an additional purification stage must be included in the overall process.",
publisher = "Association of Chemists and Chemical Engineers of Serbia",
journal = "Hemijska Industrija",
title = "Triethanolamine as an efficient cosolvent for biodiesel production by cao-catalyzed sunflower oil ethanolysis: An optimization study",
volume = "73",
number = "6",
pages = "351-362",
doi = "10.2298/HEMIND190822033D"
}

Đokić-Stojanović, D. R., Todorović, Z. B., Troter, D. Z., Stamenković, O. S., Veselinović, L. M., Zdujić, M. V., Manojlović, D. D.,& Veljković, V. B.. (2019). Triethanolamine as an efficient cosolvent for biodiesel production by cao-catalyzed sunflower oil ethanolysis: An optimization study. in Hemijska Industrija
Association of Chemists and Chemical Engineers of Serbia., 73(6), 351-362.
https://doi.org/10.2298/HEMIND190822033D

Đokić-Stojanović DR, Todorović ZB, Troter DZ, Stamenković OS, Veselinović LM, Zdujić MV, Manojlović DD, Veljković VB. Triethanolamine as an efficient cosolvent for biodiesel production by cao-catalyzed sunflower oil ethanolysis: An optimization study. in Hemijska Industrija. 2019;73(6):351-362.
doi:10.2298/HEMIND190822033D .

Đokić-Stojanović, Dušica R., Todorović, Zoran B., Troter, Dragan Z., Stamenković, Olivera S., Veselinović, Ljiljana M., Zdujić, Miodrag V., Manojlović, Dragan D., Veljković, Vlada B., "Triethanolamine as an efficient cosolvent for biodiesel production by cao-catalyzed sunflower oil ethanolysis: An optimization study" in Hemijska Industrija, 73, no. 6 (2019):351-362,
https://doi.org/10.2298/HEMIND190822033D . .

TY  - DATA
AU  - Đokić-Stojanović, Dušica R.
AU  - Todorović, Zoran B.
AU  - Troter, Dragan Z.
AU  - Stamenković, Olivera S.
AU  - Veselinović, Ljiljana M.
AU  - Zdujić, Miodrag V.
AU  - Manojlović, Dragan D.
AU  - Veljković, Vlada B.
PY  - 2019
UR  - https://cherry.chem.bg.ac.rs/handle/123456789/3798
PB  - Association of Chemists and Chemical Engineers of Serbia
T2  - Hemijska Industrija
T1  - Supplementary data for article: Đokić-Stojanović, D. R.; Todorović, Z. B.; Troter, D. Z.; Stamenković, O. S.; Veselinović, L. M.; Zdujić, M. V.; Manojlović, D. D.; Veljković, V. B. Triethanolamine as an Efficient Cosolvent for Biodiesel Production by Cao-Catalyzed Sunflower Oil Ethanolysis: An Optimization Study. Hemijska Industrija 2019, 73 (6), 351–362. https://doi.org/10.2298/HEMIND190822033D
UR  - https://hdl.handle.net/21.15107/rcub_cherry_3798
ER  - 

@misc{
author = "Đokić-Stojanović, Dušica R. and Todorović, Zoran B. and Troter, Dragan Z. and Stamenković, Olivera S. and Veselinović, Ljiljana M. and Zdujić, Miodrag V. and Manojlović, Dragan D. and Veljković, Vlada B.",
year = "2019",
publisher = "Association of Chemists and Chemical Engineers of Serbia",
journal = "Hemijska Industrija",
title = "Supplementary data for article: Đokić-Stojanović, D. R.; Todorović, Z. B.; Troter, D. Z.; Stamenković, O. S.; Veselinović, L. M.; Zdujić, M. V.; Manojlović, D. D.; Veljković, V. B. Triethanolamine as an Efficient Cosolvent for Biodiesel Production by Cao-Catalyzed Sunflower Oil Ethanolysis: An Optimization Study. Hemijska Industrija 2019, 73 (6), 351–362. https://doi.org/10.2298/HEMIND190822033D",
url = "https://hdl.handle.net/21.15107/rcub_cherry_3798"
}

Đokić-Stojanović, D. R., Todorović, Z. B., Troter, D. Z., Stamenković, O. S., Veselinović, L. M., Zdujić, M. V., Manojlović, D. D.,& Veljković, V. B.. (2019). Supplementary data for article: Đokić-Stojanović, D. R.; Todorović, Z. B.; Troter, D. Z.; Stamenković, O. S.; Veselinović, L. M.; Zdujić, M. V.; Manojlović, D. D.; Veljković, V. B. Triethanolamine as an Efficient Cosolvent for Biodiesel Production by Cao-Catalyzed Sunflower Oil Ethanolysis: An Optimization Study. Hemijska Industrija 2019, 73 (6), 351–362. https://doi.org/10.2298/HEMIND190822033D. in Hemijska Industrija
Association of Chemists and Chemical Engineers of Serbia..
https://hdl.handle.net/21.15107/rcub_cherry_3798

Đokić-Stojanović DR, Todorović ZB, Troter DZ, Stamenković OS, Veselinović LM, Zdujić MV, Manojlović DD, Veljković VB. Supplementary data for article: Đokić-Stojanović, D. R.; Todorović, Z. B.; Troter, D. Z.; Stamenković, O. S.; Veselinović, L. M.; Zdujić, M. V.; Manojlović, D. D.; Veljković, V. B. Triethanolamine as an Efficient Cosolvent for Biodiesel Production by Cao-Catalyzed Sunflower Oil Ethanolysis: An Optimization Study. Hemijska Industrija 2019, 73 (6), 351–362. https://doi.org/10.2298/HEMIND190822033D. in Hemijska Industrija. 2019;.
https://hdl.handle.net/21.15107/rcub_cherry_3798 .

Đokić-Stojanović, Dušica R., Todorović, Zoran B., Troter, Dragan Z., Stamenković, Olivera S., Veselinović, Ljiljana M., Zdujić, Miodrag V., Manojlović, Dragan D., Veljković, Vlada B., "Supplementary data for article: Đokić-Stojanović, D. R.; Todorović, Z. B.; Troter, D. Z.; Stamenković, O. S.; Veselinović, L. M.; Zdujić, M. V.; Manojlović, D. D.; Veljković, V. B. Triethanolamine as an Efficient Cosolvent for Biodiesel Production by Cao-Catalyzed Sunflower Oil Ethanolysis: An Optimization Study. Hemijska Industrija 2019, 73 (6), 351–362. https://doi.org/10.2298/HEMIND190822033D" in Hemijska Industrija (2019),
https://hdl.handle.net/21.15107/rcub_cherry_3798 .