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2003•Zhongguo youzhiRequires access

Preparation of Biodiesel Fuel and Glycerol by Transesterification of Cottonseed Oil

WU Guo-ying, Lin Xi-ping, Wu Miaoxin, Youchun Zhang, Liu Yong

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Abstract

A research was made of the reaction of transesterification of cottonseed oil,using KOH as catalysts.Through orthogonal analysis of parameters in a four-factor and three-level test,the optimum conditions obtained for the transesterification are molar ratio of methanol to oil 6∶1,usage amount of KOH catalyst 1.1% and reaction temperature 45℃.The unreacted methanol was separated by atmospheric distillation and recycled to reuse for reaction.The reovery of glycerol is conducted by vacuum distillation.The properties of biodiesel fuel has a similar specification to diesel fuel from petroleum.

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What this paper is about

A research was made of the reaction of transesterification of cottonseed oil,using KOH as catalysts.Through orthogonal analysis of parameters in a four-factor and three-level test,the optimum conditions obtained for the transesterification are molar ratio of methanol to oil 6∶1,usage amount of KOH catalyst 1.1% and reaction temperature 45℃.The unreacted methanol was separated by atmospheric distillation and recycled to reuse for reaction.The reovery of glycerol is conducted by vacuum distillation.The properties of biodiesel fuel has a similar specification to diesel fuel from petroleum.

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Available abstract

A research was made of the reaction of transesterification of cottonseed oil,using KOH as catalysts.Through orthogonal analysis of parameters in a four-factor and three-level test,the optimum conditions obtained for the transesterification are molar ratio of methanol to oil 6∶1,usage amount of KOH catalyst 1.1% and reaction temperature 45℃.The unreacted methanol was separated by atmospheric distillation and recycled to reuse for reaction.The reovery of glycerol is conducted by vacuum distillation.The properties of biodiesel fuel has a similar specification to diesel fuel from petroleum.

Key concepts: Transesterification, Biodiesel, Methanol, Diesel fuel, Distillation, Cottonseed oil, Pulp and paper industry, Catalysis

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