Novel strategy for lipase-catalyzed synthesis of biodiesel using blended alcohol as an acyl acceptor
- 주제(키워드) Biodiesel , Catalysis , Enzymes , Ethanol , Lipases , Methanol , Synthesis (chemical) , Transesterification , Biodiesel synthesis , Candida antarctica , Consumption rates , Enzyme screenings , Lipase-catalyzed , Lipase-catalyzed synthesis , Molar proportions , Optimum temperature , Synthetic fuels
- 등재 SCOPUS
- 발행기관 Elsevier
- 발행년도 2014
- URI http://www.dcollection.net/handler/ewha/000000096677
- 본문언어 영어
- Published As http://dx.doi.org/10.1016/j.molcatb.2014.05.002
- 저작권 이화여자대학교 논문은 저작권에 의해 보호받습니다.
초록/요약
As a novel strategy, blended alcohols consisting of methanol and ethanol were used as acyl acceptors for biodiesel synthesis from soybean oil by lipase-catalyzed transesterification. Based on enzyme screening, Novozym 435 from Candida antarctica was selected for the reaction. The effects of the molar proportion of methanol in the blended alcohol, temperature, and enzyme loading were investigated for optimization of the reaction. In addition, the relative consumption rates of methanol and ethanol during the transesterification were studied. Among six proportions tested, 0 (100 mol% ethanol), 20, 40, and 60 mol% methanol in the blended alcohols exhibited high yields of biodiesel. For the optimum temperature, 30 °C was selected. The highest yield of biodiesel, over 95 wt%, was obtained at an enzyme loading of 5–10 wt% loading. In the lipase-catalyzed transesterification, the reactivity of methanol was significantly higher than that of ethanol.
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