Solid superacid catalyzed fatty acid methyl esters production from acid oil
A solid superacid catalyst was evaluated for the production of fatty acid methyl esters (FAMEs) from acid oil containing about 60 wt.% free fatty acids. It was demonstrated that /ZrO2-TiO2/La3+ was an effective catalyst for simultaneous transesterification and esterification. The optimization of reaction parameters was performed, showing that maximum yield of above 90% could be obtained under the conditions that molar ratio of alcohol/oil was 15:1, catalyst amount was 5 wt.%, temperature was 200 °C and duration was 2 h. The catalyst was finally recycled and utilized for five times repeatedly with little loss in activity. The final products purified by molecular distillation were detected by GC-MS. The content of FAMEs reached 96.24%.
Year of publication: |
2010
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Authors: | Li, Yan ; Zhang, Xiao-Dong ; Sun, Li ; Xu, Min ; Zhou, Wen-Guang ; Liang, Xiao-Hui |
Published in: |
Applied Energy. - Elsevier, ISSN 0306-2619. - Vol. 87.2010, 7, p. 2369-2373
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Publisher: |
Elsevier |
Keywords: | Solid superacid catalyst Fatty acid methyl esters Acid oil |
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