Journal
TOPICS IN CATALYSIS
Volume 53, Issue 11-12, Pages 773-782Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s11244-010-9463-2
Keywords
Transesterification; Esterification; Sulfated zirconia; Biodiesel; Rapeseed oil
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Funding
- Ministry of Science and Technology, Thailand
- EPSRC [EP/F067372/1] Funding Source: UKRI
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Simultaneous transesterification and esterification of rapeseed oil with methanol in the presence of myristic acid was investigated. The effect of reaction temperature (120, 150 and 170 A degrees C) and the effect of initial free fatty acid content in oil (0, 10 and 20 wt%) on reaction rate were studied. The catalysts were found to increase the rate of all reactions. Sulfated zirconia prepared by a solvent-free method exhibited higher activity in simultaneous reaction than the conventional method. The presence of 10 wt% free fatty acids in the triglyceride increased the reaction rate and the final total fatty acid methyl esters content, and suggests that a non-catalytic reaction may be feasible.
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