期刊
JOURNAL OF MOLECULAR LIQUIDS
卷 237, 期 -, 页码 38-45出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.molliq.2017.04.076
关键词
Acidic catalyst; Heterogeneous; Castor oil; Jatropha oil; Biodiesel
Herein, conversion of castor oil and jatropha oil were converted into their corresponding biodiesels using highly acidic heterogeneous catalyst prepared by modification of silane mica clay in one step reaction. The prepared catalyst was characterized using different spectroscopic methods. The conditions of biodiesel production were optimized to obtain the maximum yield including: oil to methanol ratio, catalyst ratio, temperature, and reaction time. The specifications of the obtained products were comparable to (American Society for Testing and Materials) ASTM specifications. The analysis showed that the conversion of castor oil into biodiesel involves two reactions. The first is the transesterification of the triglycerides to the corresponding methyl esters, and the second is the etherification reaction of the hydroxyl groups of ricinoleate moieties to the corresponding methyl ether. The role of catalyst activity in the conversion reactions was described, and the different mechanisms involved in the conversion reaction were described. (C) 2017 Elsevier B.V. All rights reserved.
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