Triethanolamine as an efficient cosolvent for biodiesel production by CaO-catalyzed sunflower oil ethanolysis: An optimization study
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)...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Association of Chemical Engineers of Serbia
2019-01-01
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| Series: | Hemijska Industrija |
| Subjects: | |
| Online Access: | http://www.doiserbia.nb.rs/img/doi/0367-598X/2019/0367-598X1900033D.pdf |
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| author | 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. |
| author_facet | 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. |
| author_sort | Đokić-Stojanović Dušica R. |
| collection | DOAJ |
| description | 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. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. III 45001] |
| first_indexed | 2024-12-10T12:28:43Z |
| format | Article |
| id | doaj.art-8388c5614b924b0b803f246be2907856 |
| institution | Directory Open Access Journal |
| issn | 0367-598X 2217-7426 |
| language | English |
| last_indexed | 2024-12-10T12:28:43Z |
| publishDate | 2019-01-01 |
| publisher | Association of Chemical Engineers of Serbia |
| record_format | Article |
| series | Hemijska Industrija |
| spelling | doaj.art-8388c5614b924b0b803f246be29078562022-12-22T01:48:52ZengAssociation of Chemical Engineers of SerbiaHemijska Industrija0367-598X2217-74262019-01-0173635136210.2298/HEMIND190822033D0367-598X1900033DTriethanolamine as an efficient cosolvent for biodiesel production by CaO-catalyzed sunflower oil ethanolysis: An optimization studyĐokić-Stojanović Dušica R.0Todorović Zoran B.1Troter Dragan Z.2Stamenković Olivera S.3Veselinović Ljiljana M.4Zdujić Miodrag V.5Manojlović Dragan D.6Veljković Vlada B.7Zdravlje Actavis, Leskovac, SerbiaFaculty of Technology, University of Niš, Leskovac, SerbiaFaculty of Technology, University of Niš, Leskovac, SerbiaFaculty of Technology, University of Niš, Leskovac, SerbiaInstitute of Technical Sciences of the Serbian Academy of Sciences and Arts, Belgrade, SerbiaInstitute of Technical Sciences of the Serbian Academy of Sciences and Arts, Belgrade, SerbiaFaculty of Chemistry, University of Belgrade, Belgrade, SerbiaFaculty of Technology, University of Niš, Leskovac, Serbia + Serbian Academy of Sciences and Arts, Belgrade, SerbiaTriethanolamine 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. [Project of the Serbian Ministry of Education, Science and Technological Development, Grant no. III 45001]http://www.doiserbia.nb.rs/img/doi/0367-598X/2019/0367-598X1900033D.pdfbiodieselheterogeneous catalysistransesterificationxrd |
| spellingShingle | 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 Hemijska Industrija biodiesel heterogeneous catalysis transesterification xrd |
| title | Triethanolamine as an efficient cosolvent for biodiesel production by CaO-catalyzed sunflower oil ethanolysis: An optimization study |
| title_full | Triethanolamine as an efficient cosolvent for biodiesel production by CaO-catalyzed sunflower oil ethanolysis: An optimization study |
| title_fullStr | Triethanolamine as an efficient cosolvent for biodiesel production by CaO-catalyzed sunflower oil ethanolysis: An optimization study |
| title_full_unstemmed | Triethanolamine as an efficient cosolvent for biodiesel production by CaO-catalyzed sunflower oil ethanolysis: An optimization study |
| title_short | Triethanolamine as an efficient cosolvent for biodiesel production by CaO-catalyzed sunflower oil ethanolysis: An optimization study |
| title_sort | triethanolamine as an efficient cosolvent for biodiesel production by cao catalyzed sunflower oil ethanolysis an optimization study |
| topic | biodiesel heterogeneous catalysis transesterification xrd |
| url | http://www.doiserbia.nb.rs/img/doi/0367-598X/2019/0367-598X1900033D.pdf |
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