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Citation: SHENG Mei, YANG Wen-Wei, GUO Deng-Feng. Production of Biodiesel Fuel from Rapeseed Oil and Methanol Under Catalysis of Immobilized Lipase[J]. Chinese Journal of Applied Chemistry, ;2005, 22(7): 788-791. shu

Production of Biodiesel Fuel from Rapeseed Oil and Methanol Under Catalysis of Immobilized Lipase

1.
a Key Laboratory of Fine Chemical Engineering, Jiangsu Polytechnic University, Changzhou 213016;
2.
b Changzhou Broadcasting and Television University, Changzhou

Corresponding author: SHENG Mei,
Received Date: 8 September 2004
Available Online: 25 November 2004
Fund Project: 中石化集团总公司基金(102019) (102019)常州市社会发展基金(CS20040022)资助项目 (CS20040022)

The production of biodiesel from rapeseed oil and methanol was performed under the catalysis of immobilized Candida antarctica lipase.The effects of the preincubation of the enzyme,water content,the molar ratio of the oil to methanol and the way for addition of methanol on the methanolysis reaction rate were investigated.The experiment showed that the methanolysis progressed much faster when immobilized lipase was preincubated in methyl oleate for 2 h and subsequently in rapeseed oil for 12 h.Trace water contained in rapeseed oil and methanol increased the methanolysis reaction rate,but adding water in the reaction mixture was found to suppress the methanolysis reaction catalyzed by immobilized lipase.The suitable molar ratio of methanol to the oil is 3:1,lipase inactivation is avoided by three-step addition of methanol.A high methyl ester content above 99% can be achieved.
- transesterification,
- immobilized lipase,
- rapeseed oil,
- methanol,
- biodiesel
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