期刊
WASTE AND BIOMASS VALORIZATION
卷 11, 期 5, 页码 2087-2100出版社
SPRINGER
DOI: 10.1007/s12649-018-0500-x
关键词
Waste cooking oil; Fatty acid methyl ester; Esterification; Yield; Structural characterization
The preparation of biodiesel as an alternative to petroleum-based fuels can expand the research and development of renewable energy, and is conducive to environmental protection. In this study, waste cooking oil (WCO) was used as raw material, and then pretreated, and then esterified with methanol under the action of sodium hydroxide catalyst to transformed into fatty acid methyl ester (FAME) to prepare biodiesel. The reaction conditions were optimized by a three factorial Box-Behnken design through response surface methodology, when the reaction temperature was 70.1 degrees C, the catalyst concentration was 1.013% and the molar ratio of methanol to oil was 6.5:1, the maximum FAME was up to 99.342%. Finally, the conversion of the triglyceride to the methyl ester was confirmed by NMR (H-1 and C-13), and no unsaturation was present in the methyl ester. The chemical composition of biodiesel was determined by GC-MS analysis. There are mainly 11 FAME ranging from C16 to C24. The potential of WCO to prepare biodiesel was obtained.
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