A novel enzymatic route for biodiesel production from renewable oils in a solvent-free medium |
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| Authors: | Yuanyuan Xu Wei Du Dehua Liu Jing Zeng |
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| Institution: | (1) Department of Chemical Engineering, Tsinghua University, Beijing, 100084, P.R. China |
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| Abstract: | A new enzymatic route for biodiesel production from soybean oil was developed using methyl acetate as a novel acyl acceptor. Novozym 435 (immobilized Candida antarctica lipase) gave the highest methyl ester (ME) yield of 92%. The optimum conditions of the transesterification were 30% enzyme based on oil weight; a molar ratio of methyl acetate/oil of 12:1; temperature 40 °C and reaction time 10 h. Since no glycerol was produced in the process, this method is very convenient for recycling the catalyst and by-product triacetylglycerol showed no negative effect on the fuel property. |
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| Keywords: | biodiesel methyl acetate Novozym 435 transesterification |
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