A Novel La2O3-ZnO/ZrO2 Solid Superbase and its Catalytic Performance for Transesterification of Soybean Oil to Biodiesel
2010 ◽
Vol 132
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pp. 228-235
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Keyword(s):
A novel solid superbase catalyst of La2O3-ZnO/ZrO2 was prepared, and its H– value (Hammett function) of surface basic strength reaches 26.5. The catalytic activity of La2O3-ZnO/ZrO2 was evaluated for the transesterification of soybean oil (SBO) with methanol to biodiesel in a fixed bed reactor under atmospheric pressure. The results show that the chemical composition of the La2O3-ZnO/ZrO2 catalyst influences both its H– value and catalytic performance, the appropriate content of ZrO2 is 60 wt.% and the La2O3/ZnO molar ratio is 4~5/1. La2O3-ZnO/ZrO2 is an effective catalyst for the transesterification of SBO, and the SBO conversion reaches 71.3% at 70°C for 12h.
2021 ◽
Vol 0
(0)
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2015 ◽
Vol 802
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pp. 431-436
Keyword(s):
2011 ◽
Vol 236-238
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pp. 1067-1072
2012 ◽
Vol 518-523
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pp. 77-80
Keyword(s):
2010 ◽
Vol 152-153
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pp. 860-863
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2012 ◽
Vol 535-537
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pp. 2139-2142
Keyword(s):