Modeling the kinetics of calcium hydroxide catalyzed methanolysis of sunflower oil.
The kinetics of Ca(OH)(2)-catalyzed methanolysis of sunflower oil was studied at a moderate temperature (60 degrees C), a methanol-to-oil molar ratio (6:1) and different catalyst amounts (from 1% to 10% based on oil weight). The methanolysis process was shown to involve the initial triglyceride (TG) mass transfer controlled region, followed by the chemical reaction controlled region in the latter period. The TG mass transfer limitation was caused by the low available active specific catalyst surface due to the high adsorbed methanol concentration. Both the TG mass transfer and chemical reaction rates increased with increasing the catalyst amount.
Faculty of Technology, University of Nis, Bulevar Oslobodenja 124, 16000 Leskovac, Serbia.
Olivera S
OS
Stamenković
Vlada B
VB
Veljković
Zoran B
ZB
Todorović
Miodrag L
ML
Lazić
Ivana B
IB
Banković-Ilić
Dejan U
DU
Skala
D000327:Adsorption; D002126:Calcium Hydroxide / Q000378:metabolism*; D002384:Catalysis; D020134:Catalytic Domain; D003198:Computer Simulation; D004952:Esters / Q000378:metabolism; D007700:Kinetics; D000432:Methanol / Q000378:metabolism*; D008956:Models, Chemical; D010938:Plant Oils / Q000378:metabolism*; D000074242:Sunflower Oil; D014280:Triglycerides / Q000378:metabolism
D004952:Esters; D010938:Plant Oils; D000074242:Sunflower Oil; D014280:Triglycerides; D002126:Calcium Hydroxide; D000432:Methanol