期刊
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷 48, 期 20, 页码 9350-9353出版社
AMER CHEMICAL SOC
DOI: 10.1021/ie901175d
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资金
- Kasetsart University
This paper presents a study of the methanol based transesterification of waste used cooking oil (WCO, 15% free fatty acid content) with the synthesized solid acid catalyst at different temperatures and reaction times. The optimized conditions for fatty acid methy esther (FAME) yield were investigated using methanol/WCO weight ratios of 0.15-0.35 and catalyst/WCO ratios of 0.25-1.25%. The results shows that the methanol/WCO ratio of 0.3 and the catalyst/WCO ratio of 1.0% give the highest yield of 97.5% FAME at 385 K in 2h. In addition, the capacity of porous supports for WOx synthesized catalysts, based on FAME yield was in the following order: Al2O3 > SiO2 > SnO2 > ZnO. The WOx/Al2O3 catalyst was found to be readily reusable and exhibited consistency in activity upon reuse for three times without loss of selectivity.
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