Kinetics of Palm Oil Transesterification in a Batch Reactor
نویسندگان
چکیده
Methyl esters were produced by transesterification of palm oil with methanol in the presence of a catalyst (KOH). The rate of transesterification in a batch reactor increased with temperature up to 60°C. (Higher temperatures did not reduce the time to reach maximal conversion. The conversion of triglycerides (-TG), diglycerides (-DG) and monoglycerides (-MG) appeared to be second order up to 30 mins of reaction time. Reaction rate constants for TG, DG and MG hydrolysis reactions were 0.018 -0.191 (wt % @ min), and were higher at higher temperatures and higher for the MG reaction than for the TG hydrolysis. Acti vation energies were : 14.7, 14.2 and 6.4 kcal/mol for the TG, DG and MG hydrolysis reactions respectively. The optimal catalyst concentration was 1% KOH. Paper no. 19574 in JAOCS 77, 1263-1267 (December 2000).
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