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Process optimization of biodiesel production by PSSA/PVA membranes using response surface methodology

Authors： ZHU Mulan, HE Benqiao, LIU Anyuan, Feng Yaohui, LI Jianxin

Units： State Key Laboratory of Hollow Fiber Membrane Material and Processes, Tianjin Polytechnic University, Tianjin 300160, P.R. China

KeyWords： Response surface methodology；Biodiesel；Esterification；PSSA/PVA blend membrane

ClassificationCode：TQ032.41 ，TQ028．8

year,volume(issue):pagination： 2011,31(4):89-94

Abstract：

A poly(styrene sulfonic acid) (PSSA)/poly(vinyl alcohol) (PVA) blend membrane was used as a catalyst for producing biodiesel from acidic oil. The effects of methanol-oil ratio, reaction time, catalyst amount and temperature on the esterification conversion of fatty acids were investigated through response surface method. Results show that the order of their effects on the conversion was methanol-oil ratio > catalyst amount > temperature > reaction time. The interaction effect between methanol-oil ratio and catalyst amount on the conversion was most significant; nevertheless the interaction effects related with reaction time was less significant. A quadratic polynomial equation was obtained for esterification conversion by multiple regression analysis. The optimum conditions for the esterification obtained were methanol-oil mass ratio of 1.2:1, the amount of catalyst of 1.56meq/g of oil, temperature of 64.5℃ and reaction time of 7 h. The experimental conversion was 94.60%，close to the predicted conversion(97.27 %) by the equation.

Funds：

国家高科技（863）计划（项目编号2009AA03Z223)；天津市应用基础及前沿技术研究计划(项目编号 08JCYBJC26400、08JCZDJC24000)

AuthorIntro：

朱木兰(1984-），女，江苏宿迁市人，硕士研究生，主要从事膜催化方面的研究。 ?联系人电话：022-24528072， hebq2008@gmail.com

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