2014•Journal of Yunnan Normal UniversityRequires access

Biodiesel Synthesis from Rapeseed Oil Catalyzed by Ionic Liquid [Hnmp]HSO_4

Zhou Ying-qin

Abstract

The ionic liquid [Hnmp]HSO4was prepared,and used to synthesize biodiesel from rapeseed oil by transesterification.Ionic liquid [Hnmp]HSO4exhibited good catalytic activity and stability.The optimum reaction conditions were obtained as follows:dosage of ionic liquid 8%(based on the mass of rapeseed oil),molar ratio of methanol to rapeseed oil 8:1,reaction temperature(100±2)℃,reaction time 5h.The yield of biodiesel reached 85.4% under the optimum conditions.The ionic liquid was stable,and its activity did not decrease after using for four times.

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Key concepts: Rapeseed, Ionic liquid, Biodiesel, Methanol, Transesterification, Yield (engineering), Catalysis, Biodiesel production