期刊
JOURNAL OF OLEO SCIENCE
卷 67, 期 9, 页码 1163-1169出版社
JAPAN OIL CHEMISTS SOC
DOI: 10.5650/jos.ess18018
关键词
p-toluenesulfonic acid; deep eutectic solvent; transesterification; fatty acid methyl ester; biodiesel
资金
- China Postdoctoral Science Foundation [2017M622364, 2018T110730]
- Project of Henan University of Technology Excellent Young Teachers [2014003]
In this study, acidic deep eutectic solvents (DESs) have been studied as catalyst in transesterification of soybean oil with methanol to produce biodiesel. p-Toluenesulfonic acid-based deep eutectic solvent (P-DES), composed of p-toluenesulfonic acid and choline chloride (1:3, mol/mol), was found to be an efficient transesterification catalyst for biodiesel production. The optimum conditions for the transesterification process were as follows: 8% P-DES catalyst, 8:1 molar ratio of methanol to oil, reaction temperature of 110 degrees C and 2 h reaction time. The transesterification yield could reach 98.66 +/- 0.17%. And the P-DES exhibited as a heterogeneous catalyst after the reaction, which could be separated easily. And P-DES could remove the trace amount of by-product (glycerol) in the final biodiesel product, making this process more simple and cleaner.
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