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°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 tran...

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Bibliographic Details
Published in:Bioresource technology 2010-06, Vol.101 (12), p.4423-4430
Main Authors: Stamenković, Olivera S., Veljković, Vlada B., Todorović, Zoran B., Lazić, Miodrag L., Banković-Ilić, Ivana B., Skala, Dejan U.
Format: Article
Language:English
Subjects:
Adsorption
Biodiesel
Biofuel production
Biological and medical sciences
Biotechnology
Calcium hydroxide
Calcium Hydroxide - metabolism
Catalysis
Catalysts
Catalytic Domain
Chemical reactions
Computer Simulation
Energy
Esters - metabolism
fatty acid methyl esters
Fundamental and applied biological sciences. Psychology
Helianthus
Industrial applications and implications. Economical aspects
Kinetics
Mass transfer
methanol
Methanol - metabolism
Methanolysis
Methyl alcohol
Models, Chemical
Plant Oils - metabolism
Reaction kinetics
renewable energy sources
Slaked lime
Sunflower Oil
Surface chemistry
transesterification
triacylglycerols
Triglycerides - metabolism
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Summary:The kinetics of Ca(OH)2-catalyzed methanolysis of sunflower oil was studied at a moderate temperature (60°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.
ISSN:0960-8524
1873-2976
DOI:10.1016/j.biortech.2010.01.109