SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2012, Vol. 20 ›› Issue (4): 740-746.

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Biodiesel Production from Crude Jatropha curcas L.Oil with Trace Acid Catalyst

刘颖颖1, 鲁厚芳1, 蒋炜1, 李东升1, 刘世界2, 梁斌1   

  1. 1. Multi-phase Mass Transfer and Reaction Engineering Laboratory, College of Chemical Engineering, Sichuan University, Chengdu 610065, China;
    2. Department of Paper and Bioprocess Engineering, SUNY College of Environmental Science and Forestry, 1 Forestry Drive, Syracuse, NY 13210, USA
  • 收稿日期:2011-06-20 修回日期:2011-11-05 出版日期:2012-08-28 发布日期:2012-09-15
  • 通讯作者: LU Houfang, E-mail:luhouf@163.com
  • 基金资助:
    Supported by the Key Grant Project of Chinese Ministry of Education (307023);the National Natural Science Foundation of China (20976108);the National Key Technology Research and Development Program (2007BAD50D05)

Biodiesel Production from Crude Jatropha curcas L.Oil with Trace Acid Catalyst

LIU Yingying1, LU Houfang1, JIANG Wei1, LI Dongsheng1, LIU Shijie2, LIANG Bin1   

  1. 1. Multi-phase Mass Transfer and Reaction Engineering Laboratory, College of Chemical Engineering, Sichuan University, Chengdu 610065, China;
    2. Department of Paper and Bioprocess Engineering, SUNY College of Environmental Science and Forestry, 1 Forestry Drive, Syracuse, NY 13210, USA
  • Received:2011-06-20 Revised:2011-11-05 Online:2012-08-28 Published:2012-09-15
  • Supported by:
    Supported by the Key Grant Project of Chinese Ministry of Education (307023);the National Natural Science Foundation of China (20976108);the National Key Technology Research and Development Program (2007BAD50D05)

摘要: Biodiesel produced from crude Jatropha curcas L.oil with trace sulfuric acid catalyst(0.02%-0.08% oil) was investigated at 135-184℃.Both esterification and transesterification can be well carried out simultane-ously.Factors affecting the process were investigated,which included the reaction temperature,reaction time,the molar ratio of alcohol to oil,catalyst amount,water content,free fatty acid(FFA) and fatty acid methyl ester(FAME) content.Under the conditions at 165℃,0.06%(by mass) H2SO4 of the oil mass,1.6 MPa and 20:1 methanol/oil ratio,the yield of glycerol reached 84.8% in 2 hours.FFA and FAME showed positive effect on the transesterification in certain extent.The water mass content below 1.0% did not show a noticeable effect on trans-esterification.Reaction kinetics in the range of 155℃ to 175℃ was also measured.

关键词: free fatty acids, Jatropha curcas L.oil, biodiesel, transesterification, acid catalyst

Abstract: Biodiesel produced from crude Jatropha curcas L.oil with trace sulfuric acid catalyst(0.02%-0.08% oil) was investigated at 135-184℃.Both esterification and transesterification can be well carried out simultane-ously.Factors affecting the process were investigated,which included the reaction temperature,reaction time,the molar ratio of alcohol to oil,catalyst amount,water content,free fatty acid(FFA) and fatty acid methyl ester(FAME) content.Under the conditions at 165℃,0.06%(by mass) H2SO4 of the oil mass,1.6 MPa and 20:1 methanol/oil ratio,the yield of glycerol reached 84.8% in 2 hours.FFA and FAME showed positive effect on the transesterification in certain extent.The water mass content below 1.0% did not show a noticeable effect on trans-esterification.Reaction kinetics in the range of 155℃ to 175℃ was also measured.

Key words: free fatty acids, Jatropha curcas L.oil, biodiesel, transesterification, acid catalyst