Welcome to Chemistry and Industry of Forest Products,

›› 2008, Vol. 28 ›› Issue (6): 25-28.

• 研究报告 • Previous Articles     Next Articles

国家林业局"948"创新项目 (2006-4-C05); 国家林业局科技推广项目([2007]132); 国家自然科学基金(30700634); 国家"863"计划(2007AA100703);浙江省与中国林业科学研究院省院合作项目(2005SY02)

ZHOU Jing, NIE Xiao-an, DAI Wei-di, GAO Yi-wei, CHANG Xia   

  1. Institute of Chemical Industry of Forest Products, CAF;Key and Open Lab.on Forest Chemical Engineering, SFA, Nanjing 210042, China
  • Received:2008-05-23 Revised:1900-01-01 Online:2008-12-30 Published:2008-12-30

Abstract: Preparation and application of biodiesel by esterification of oils of high acid value catalyzed by p-toluenesulfonic acid supported on activated carbon were studied. Catalysts of TsOH/C-A,TsOH/C-B and TsOH/C-C of different loading amounts were prepared by different methods. Comparing 3 kinds of supporting method and 5 kinds of activated carbon(coal-activated carbon 1#,coal-activated carbon 2#,coal-activated carbon 3#,citric-acid-activated carbon and coconut-activated carbon), the best activated carbon was citric-acid-activated carbon and the optimum kind of supported catalyst was TsOH/C-C. Through orthogonal experiment, effects of influencing factors on esterification yield were studied. Under the optimal conditions: amount of catalyst 10%, reaction temperature 70℃, molar ratio of methanol to acidified oil 28:1, reaction time 2 h, yield of the product could reach 88.8%

Key words: supported p-toluenesulfonic acid, activated carbon, biodiesel, esterification

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