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

被引:29
作者
Liu Yingying [1 ]
Lu Houfang [1 ]
Jiang Wei [1 ]
Li Dongsheng [1 ]
Liu Shijie [2 ]
Liang Bin [1 ]
机构
[1] Sichuan Univ, Multiphase Mass Transfer & React Engn Lab, Coll Chem Engn, Chengdu 610065, Peoples R China
[2] SUNY Coll Environm Sci & Forestry, Dept Paper & Bioproc Engn, Syracuse, NY 13210 USA
基金
中国国家自然科学基金;
关键词
free fatty acids; Jatropha curcas L. oil; biodiesel; transesterification; acid catalyst; FREE FATTY-ACIDS; SOYBEAN OIL; SUPERCRITICAL METHANOL; TRANSESTERIFICATION KINETICS; SEED OIL; SYSTEMS; FUEL; OPTIMIZATION; ALCOHOLYSIS; SOLUBILITY;
D O I
10.1016/S1004-9541(11)60243-7
中图分类号
TQ [化学工业];
学科分类号
0817 ;
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 degrees C. Both esterification and transesterification can be well carried out simultaneously. 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 degrees C, 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 transesterification. Reaction kinetics in the range of 155 degrees C to 175 degrees C was also measured.
引用
收藏
页码:740 / 746
页数:7
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