The methanolysis of sunflower oil was studied in the presence of CaO previously calcined at various temperatures and the optimal temperature for CaO calcination was determined. The sigmoidal process kinetics was explained by the initial triglyceride (TG) mass transfer controlled region, followed by the chemical reaction controlled region in the latter reaction period. The TG mass transfer limitation was due to the small available active specific catalyst surface, which was mainly covered by adsorbed molecules of methanol. In the later phase, the adsorbed methanol concentration decreased, causing the increase of both the available active specific catalyst surface and the TG mass transfer rate, and the chemical reaction rate become smaller than the TG mass transfer rate.
Keywords:
Biodiesel / Calcium oxide / Kinetics / Mass transfer / Methanolysis
TY - JOUR
AU - Veljković, Vlada B.
AU - Stamenković, Olivera S.
AU - Todorović, Zoran B.
AU - Lazić, Miodrag L.
AU - Skala, Dejan U.
PY - 2009
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/5553
AB - The methanolysis of sunflower oil was studied in the presence of CaO previously calcined at various temperatures and the optimal temperature for CaO calcination was determined. The sigmoidal process kinetics was explained by the initial triglyceride (TG) mass transfer controlled region, followed by the chemical reaction controlled region in the latter reaction period. The TG mass transfer limitation was due to the small available active specific catalyst surface, which was mainly covered by adsorbed molecules of methanol. In the later phase, the adsorbed methanol concentration decreased, causing the increase of both the available active specific catalyst surface and the TG mass transfer rate, and the chemical reaction rate become smaller than the TG mass transfer rate.
PB - Elsevier
T2 - Fuel
T1 - Kinetics of sunflower oil methanolysis catalyzed by calcium oxide
EP - 1562
IS - 9
SP - 1554
VL - 88
DO - 10.1016/j.fuel.2009.02.013
ER -
@article{
author = "Veljković, Vlada B. and Stamenković, Olivera S. and Todorović, Zoran B. and Lazić, Miodrag L. and Skala, Dejan U.",
year = "2009",
abstract = "The methanolysis of sunflower oil was studied in the presence of CaO previously calcined at various temperatures and the optimal temperature for CaO calcination was determined. The sigmoidal process kinetics was explained by the initial triglyceride (TG) mass transfer controlled region, followed by the chemical reaction controlled region in the latter reaction period. The TG mass transfer limitation was due to the small available active specific catalyst surface, which was mainly covered by adsorbed molecules of methanol. In the later phase, the adsorbed methanol concentration decreased, causing the increase of both the available active specific catalyst surface and the TG mass transfer rate, and the chemical reaction rate become smaller than the TG mass transfer rate.",
publisher = "Elsevier",
journal = "Fuel",
title = "Kinetics of sunflower oil methanolysis catalyzed by calcium oxide",
pages = "1562-1554",
number = "9",
volume = "88",
doi = "10.1016/j.fuel.2009.02.013"
}
Veljković, V. B., Stamenković, O. S., Todorović, Z. B., Lazić, M. L.,& Skala, D. U.. (2009). Kinetics of sunflower oil methanolysis catalyzed by calcium oxide. in Fuel
Elsevier., 88(9), 1554-1562.
https://doi.org/10.1016/j.fuel.2009.02.013
Veljković VB, Stamenković OS, Todorović ZB, Lazić ML, Skala DU. Kinetics of sunflower oil methanolysis catalyzed by calcium oxide. in Fuel. 2009;88(9):1554-1562.
doi:10.1016/j.fuel.2009.02.013 .
Veljković, Vlada B., Stamenković, Olivera S., Todorović, Zoran B., Lazić, Miodrag L., Skala, Dejan U., "Kinetics of sunflower oil methanolysis catalyzed by calcium oxide" in Fuel, 88, no. 9 (2009):1554-1562,
https://doi.org/10.1016/j.fuel.2009.02.013 . .
