Lipase-catalyzed simultaneous biosynthesis of biodiesel and glycerol carbonate from corn oil in dimethyl carbonate |
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Authors: | Ji Young Min Eun Yeol Lee |
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Institution: | (1) Department of Chemical Engineering, Kyung Hee University, Gyeonggi-do, 446-701, Republic of Korea; |
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Abstract: | Biodiesel fatty acid methyl esters (FAMEs)] and glycerol carbonate were synthesized from corn oil and dimethyl carbonate
(DMC) via transesterification using lipase (Novozyme 435) in solvent-free reaction in which excess DMC was used as the substrate
and reaction medium. Glycerol carbonate was also simultaneously formed from DMC and glycerol. Conversions of FAMEs and glycerol
carbonate were examined in batch reactions. The FAMEs and glycerol carbonate reached 94 and 62.5% from oil and DMC (molar
ratio of 1:10) with 0.2% (v/v) water and 10% (w/w) Novozyme 435 (based on oil weight) at 60°C. When Novozyme 435 was washed
with acetone after each reaction, more than 80% activity still remained after seven recycling. |
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