Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Enzyme-catalyzed Transesterification of Soybean Oil into Biodiesel

효소촉매 전이에스테르화에 의한 대두유의 Biodiesel화

  • Kim, Hae-Sung (Department of Chemical Engineering, Myongji University)
  • 김해성 (명지대학교 공과대학 화학공학과)
  • Published : 2003.09.30
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Abstract

Biodiesel as methyl esters derived from vegetable oils has considerable advantages in terms of environmental protetion. In the present work, methyl esters were produced from soybean oil by lipase-catalyzed transesterification. To reduce inactivation of commercial immobilized lipases emulsified two-step process was developed using the stepwise addition of methanol with 4:1 molar ratio at 4h intervals. Also with immobilized lipase from Candida antarctica(Novozym 435) high conversion of 98.5 percent was possible at $45^{\circ}C$ of reaction temperature with 4:1 of methanol-to-oil molar ratio and 1%(v/v) methyl glucoside oleic polyester as an emulsifier in the presence of cosolvent.

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