Journal
ASIA-PACIFIC JOURNAL OF CHEMICAL ENGINEERING
Volume 8, Issue 5, Pages 742-748Publisher
WILEY
DOI: 10.1002/apj.1715
Keywords
biodiesel; transesterification; eggshell derived catalyst; used cooking oil
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The major drawback that prevents commercialization of biodiesel is the high cost of vegetable oil feedstock. In this work, used cooking oil, which is much less expensive than fresh vegetable oil, is used as an alternative raw material. Prior to transesterification reaction, esterification was conducted and catalyzed homogeneously to eliminate free fatty acid. Heterogeneous catalyst derived from cheap and easily obtained egg-shell (industrial waste) was used for transesterification reaction. A 100% ester yield was obtained at the optimized reaction conditions, which is 5h of reaction duration, 24:1 methanol to oil molar ratio and 4wt% catalyst loading. (c) 2013 Curtin University of Technology and John Wiley & Sons, Ltd.
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