Journal
ENERGY & FUELS
Volume 22, Issue 6, Pages 3594-3599Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ef800443x
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Funding
- Department of Energy [DE-FG36-05GO85005]
- Michigan's 21st Century Job Fund
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Biodiesel, produced by the transesterification of vegetable oils or animal fats with methanol, is a promising alternative diesel fuel. In this study, a series of strong base anion resins with different basicity, pore structure, degree of cross-linking, and particle size were investigated as heterogeneous catalysts for the transesterification of soybean oil with methanol. A trace amount of CH3ONa, functioning as a homogeneous catalyst, was found to exhibit synergetic effects with the resin catalysts. By using this combined method, the transesterification. reaction approached completion after 6 h at 328 K. The reason for this synergetic effect can be attributed to the regeneration of active catalytic sites in a basic environment.
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