Journal of Shanghai University(Natural Science Edition) ›› 2019, Vol. 25 ›› Issue (1): 84-94.doi: 10.12066/j.issn.1007-2861.1895

• Research Articles • Previous Articles     Next Articles

Application of carbon-based solid acid catalysts in preparing biodiesels

ZHANG Baohua1(), XU Liying1, QI Yong2, ZHANG Huiying1, Lü Xiaoqing1   

  1. 1. School of Environmental and Chemical Engineering,Shanghai University, Shanghai 200444, China
    2. Shanghai Lüming Technology Ltd., Shanghai 201107, China;
  • Received:2017-03-23 Online:2019-02-28 Published:2019-02-26
  • Contact: ZHANG Baohua E-mail:zhangbh@shu.edu.cn

Abstract:

Optimization of the esterification reaction condition was investigated by orthogonal experiments using carbon-based acid as catalyst prepared by p-toluenesulfonic acid and starch. In a pilot scale study, biodiesels were produced from waste oil in an acid-base cascade process. It was found that the carbon-based solid catalysts displayed high activity under an optimization condition, which was 60 ${^\circ}$C for 7 h, with 30% methanol and 4% catalysts of waste oil. The acid value of waste oil can be reduced to 1.2 mg KOH/g after esterification. It was concluded that the carbon-based solid acid catalysts were proper to be used in biodiesel production from waste oil of acid-base process instead of liquid acid catalysts.

Key words: starch, carbon-based solid acid, catalyst, waste oil, biodiesel

CLC Number: