CIESC Journal ›› 2011, Vol. 19 ›› Issue (1): 163-168.

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Reaction Kinetics of Biodiesel Synthesis from Waste Oil Using a Carbon-based Solid Acid Catalyst

舒庆1,2, 高继贤1, 廖玉会1, 王金福1   

  1. 1. Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China;
    2. School of Material and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
  • 收稿日期:2010-06-21 修回日期:2010-12-01 出版日期:2011-02-28 发布日期:2011-02-28
  • 通讯作者: E-mail: wangjf@flotu.org

Reaction Kinetics of Biodiesel Synthesis from Waste Oil Using a Carbon-based Solid Acid Catalyst

SHU Qing1,2, GAO Jixian1, LIAO Yuhui1, WANG Jinfu1   

  1. 1. Beijing Key Laboratory of Green Chemical Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China;
    2. School of Material and Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
  • Received:2010-06-21 Revised:2010-12-01 Online:2011-02-28 Published:2011-02-28

摘要: The kinetics of simultaneous transesterification and esterification with a carbon-based solid acid catalyst was studied.Two solid acid catalysts were prepared by the sulfonation of carbonized vegetable oil asphalt and petroleum asphalt.These catalysts were characterized on the basis of elemental analysis,acidity site concentration,the Brunauer-Emmett-Teller(BET)surface area and pore size.The kinetic parameters with the two catalysts were determined,and the reaction system can be described as a pseudo homogeneous catalyzed reaction.All the forward and reverse reactions follow second order kinetics.The calculated concentration values from the kinetic equations are in good agreement with experimental values.

关键词: biodiesel, carbon-based solid acid catalyst, heterogeneous catalysis, simultaneous transesterification and esterification reaction, kinetics

Abstract: The kinetics of simultaneous transesterification and esterification with a carbon-based solid acid catalyst was studied.Two solid acid catalysts were prepared by the sulfonation of carbonized vegetable oil asphalt and petroleum asphalt.These catalysts were characterized on the basis of elemental analysis,acidity site concentration,the Brunauer-Emmett-Teller(BET)surface area and pore size.The kinetic parameters with the two catalysts were determined,and the reaction system can be described as a pseudo homogeneous catalyzed reaction.All the forward and reverse reactions follow second order kinetics.The calculated concentration values from the kinetic equations are in good agreement with experimental values.

Key words: biodiesel, carbon-based solid acid catalyst, heterogeneous catalysis, simultaneous transesterification and esterification reaction, kinetics