Heterogeneously catalysed ethanolysis of sunflower oil in the presence of propylene glycol, ethyl acetate and diethyl ether as cosolvents
Heterogeno katalizovana etanoliza suncokretovog ulja u prisustvu polietilen glikola, etil acetata i dietil etra kao kosolvenata

2016
Authors
Đokić-Stojanović, Dušica R.Todorović, Zoran B.

Troter, Dragan Z.

Todorović, Vanja

Đorđević, Biljana S.
Stamenković, Olivera S.
Veljković, Vlada B.

Article (Published version)

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A heterogeneous reaction process using propylene glycol (PEG), ethyl acetate and diethyl ether as cosolvents for the transesterification of sunflower oil with ethanol in the presence of calcium oxide as a catalyst has been developed. Significant results were obtained with propylene glycol as a cosolvent. Under determined reaction conditions (CaO concentration, based on the oil weight 1.3736 mol∙dm-3; temperature 70°C; and ethanol-to-oil molar ratio 12:1), the conversion of sunflower oil to fatty acid ethyl esters (FAEE) exceeded 98% after 120 min, which was 2 times faster than transesterification of sunflower oil without a cosolvent. After initially enhanced ethanolysis, after 180 min ethyl acetate and diethyl ether negatively influenced the reaction rate and the FAEE yield.
U radu je opisana heterogena transesterifikacija suncokretovog ulja sa etanolom i kalcijum oksidom kao katalizatorom u prisustvu polietilen glikola (PEG), etil acetata i dietil etra kao kosolvenata. Najpovoljniji rezultati su dobijeni sa polietilen glikolom kao kosolventom gde je, pod određenim reakcionim uslovima (koncentracija CaO, računata u odnosu na masu ulja 1.3736 mol∙dm-3, temperatura 70°C i molarni odnos etanol:ulje 12:1), konverzija suncokretovog ulja u etil estre masnih kiselina (FAEE) dostigla vrednost od 98% nakon 120 minuta, što je 2 puta brže od transesterifikacije suncokretovog ulja bez prisustva kosolventa. Etil acetat i dietil etar poboljšavaju reakciju etanolize na početku, ali, kako reakcija napreduje, posle 180 minuta, njihovo prisustvo u reakcionoj smeši negativno utiče na brzinu reakcije i prinos etil estrara masnih kiselina (FAEE).
Keywords:
biodiesel / ethanolysis / sunflower oil / calcium oxide / catalyst / cosolvents / biodizel / etanoliza / suncokretovo ulje / kalcijum-oksid / katalizator / kosolventiSource:
Advanced Technologies, 2016, 5, 1, 66-72Publisher:
- Univerzitet u Nišu - Tehnološki fakultet, Leskovac
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PharmacyTY - JOUR AU - Đokić-Stojanović, Dušica R. AU - Todorović, Zoran B. AU - Troter, Dragan Z. AU - Todorović, Vanja AU - Đorđević, Biljana S. AU - Stamenković, Olivera S. AU - Veljković, Vlada B. PY - 2016 UR - http://farfar.pharmacy.bg.ac.rs/handle/123456789/2531 AB - A heterogeneous reaction process using propylene glycol (PEG), ethyl acetate and diethyl ether as cosolvents for the transesterification of sunflower oil with ethanol in the presence of calcium oxide as a catalyst has been developed. Significant results were obtained with propylene glycol as a cosolvent. Under determined reaction conditions (CaO concentration, based on the oil weight 1.3736 mol∙dm-3; temperature 70°C; and ethanol-to-oil molar ratio 12:1), the conversion of sunflower oil to fatty acid ethyl esters (FAEE) exceeded 98% after 120 min, which was 2 times faster than transesterification of sunflower oil without a cosolvent. After initially enhanced ethanolysis, after 180 min ethyl acetate and diethyl ether negatively influenced the reaction rate and the FAEE yield. AB - U radu je opisana heterogena transesterifikacija suncokretovog ulja sa etanolom i kalcijum oksidom kao katalizatorom u prisustvu polietilen glikola (PEG), etil acetata i dietil etra kao kosolvenata. Najpovoljniji rezultati su dobijeni sa polietilen glikolom kao kosolventom gde je, pod određenim reakcionim uslovima (koncentracija CaO, računata u odnosu na masu ulja 1.3736 mol∙dm-3, temperatura 70°C i molarni odnos etanol:ulje 12:1), konverzija suncokretovog ulja u etil estre masnih kiselina (FAEE) dostigla vrednost od 98% nakon 120 minuta, što je 2 puta brže od transesterifikacije suncokretovog ulja bez prisustva kosolventa. Etil acetat i dietil etar poboljšavaju reakciju etanolize na početku, ali, kako reakcija napreduje, posle 180 minuta, njihovo prisustvo u reakcionoj smeši negativno utiče na brzinu reakcije i prinos etil estrara masnih kiselina (FAEE). PB - Univerzitet u Nišu - Tehnološki fakultet, Leskovac T2 - Advanced Technologies T1 - Heterogeneously catalysed ethanolysis of sunflower oil in the presence of propylene glycol, ethyl acetate and diethyl ether as cosolvents T1 - Heterogeno katalizovana etanoliza suncokretovog ulja u prisustvu polietilen glikola, etil acetata i dietil etra kao kosolvenata VL - 5 IS - 1 SP - 66 EP - 72 DO - 10.5937/savteh1601066D ER -
@article{ author = "Đokić-Stojanović, Dušica R. and Todorović, Zoran B. and Troter, Dragan Z. and Todorović, Vanja and Đorđević, Biljana S. and Stamenković, Olivera S. and Veljković, Vlada B.", year = "2016", url = "http://farfar.pharmacy.bg.ac.rs/handle/123456789/2531", abstract = "A heterogeneous reaction process using propylene glycol (PEG), ethyl acetate and diethyl ether as cosolvents for the transesterification of sunflower oil with ethanol in the presence of calcium oxide as a catalyst has been developed. Significant results were obtained with propylene glycol as a cosolvent. Under determined reaction conditions (CaO concentration, based on the oil weight 1.3736 mol∙dm-3; temperature 70°C; and ethanol-to-oil molar ratio 12:1), the conversion of sunflower oil to fatty acid ethyl esters (FAEE) exceeded 98% after 120 min, which was 2 times faster than transesterification of sunflower oil without a cosolvent. After initially enhanced ethanolysis, after 180 min ethyl acetate and diethyl ether negatively influenced the reaction rate and the FAEE yield., U radu je opisana heterogena transesterifikacija suncokretovog ulja sa etanolom i kalcijum oksidom kao katalizatorom u prisustvu polietilen glikola (PEG), etil acetata i dietil etra kao kosolvenata. Najpovoljniji rezultati su dobijeni sa polietilen glikolom kao kosolventom gde je, pod određenim reakcionim uslovima (koncentracija CaO, računata u odnosu na masu ulja 1.3736 mol∙dm-3, temperatura 70°C i molarni odnos etanol:ulje 12:1), konverzija suncokretovog ulja u etil estre masnih kiselina (FAEE) dostigla vrednost od 98% nakon 120 minuta, što je 2 puta brže od transesterifikacije suncokretovog ulja bez prisustva kosolventa. Etil acetat i dietil etar poboljšavaju reakciju etanolize na početku, ali, kako reakcija napreduje, posle 180 minuta, njihovo prisustvo u reakcionoj smeši negativno utiče na brzinu reakcije i prinos etil estrara masnih kiselina (FAEE).", publisher = "Univerzitet u Nišu - Tehnološki fakultet, Leskovac", journal = "Advanced Technologies", title = "Heterogeneously catalysed ethanolysis of sunflower oil in the presence of propylene glycol, ethyl acetate and diethyl ether as cosolvents, Heterogeno katalizovana etanoliza suncokretovog ulja u prisustvu polietilen glikola, etil acetata i dietil etra kao kosolvenata", volume = "5", number = "1", pages = "66-72", doi = "10.5937/savteh1601066D" }
Đokić-Stojanović DR, Todorović ZB, Troter DZ, Todorović V, Đorđević BS, Stamenković OS, Veljković VB. Heterogeno katalizovana etanoliza suncokretovog ulja u prisustvu polietilen glikola, etil acetata i dietil etra kao kosolvenata. Advanced Technologies. 2016;5(1):66-72
Đokić-Stojanović, D. R., Todorović, Z. B., Troter, D. Z., Todorović, V., Đorđević, B. S., Stamenković, O. S.,& Veljković, V. B. (2016). Heterogeno katalizovana etanoliza suncokretovog ulja u prisustvu polietilen glikola, etil acetata i dietil etra kao kosolvenata. Advanced TechnologiesUniverzitet u Nišu - Tehnološki fakultet, Leskovac., 5(1), 66-72. https://doi.org/10.5937/savteh1601066D
Đokić-Stojanović Dušica R., Todorović Zoran B., Troter Dragan Z., Todorović Vanja, Đorđević Biljana S., Stamenković Olivera S., Veljković Vlada B., "Heterogeno katalizovana etanoliza suncokretovog ulja u prisustvu polietilen glikola, etil acetata i dietil etra kao kosolvenata" 5, no. 1 (2016):66-72, https://doi.org/10.5937/savteh1601066D .