Magnetic Fe-Ca oxide as a solid base catalyst for transesterification of rapeseed oil to produce biodiesel

被引：0

作者：

Li, Mei ^{[1
,2
]}

Lü, Peng-Mei ^{[1
]}

Yang, Ling-Mei ^{[1
]}

Luo, Wen ^{[1
]}

Wang, Zhong-Ming ^{[1
]}

Li, Hui-Wen ^{[1
]}

Yuan, Zhen-Hong ^{[1
]}

机构：

[1] Key Laboratory of Renewable Energy and Gas Hydrate, Guangzhou Institute of Energy Conversion, CAS, Guangzhou 510640, China

[2] Graduate University of Chinese Academy of Sciences, Beijing 100049, China

来源：

Ranliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology | 2012年 / 40卷 / 04期

关键词：

Atomic emission spectroscopy - Binary alloys - Fatty acids - Hematite - Iron alloys - Oilseeds - Saturation magnetization - Transesterification - Vegetable oils;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Fe-Ca bifunctional magnetic solid base (CaO·γ-Fe2O3) was prepared via in-situ coprecipitation and used as catalyst in transesterification of rapeseed oil to produce biodiesel. The catalyst was characterized by XRD, BET, TG-DTA, SEM and VSM and the amounts of Ca and Fe leached in fatty acid methyl ester were measured through ICP-AES. The results indicated that Ca and Fe components are well composited; the CaO·γ-Fe2O3 catalyst exhibits good magnetic properties with high saturation magnetization (45.7 emu/g), much higher than that of those magnetic base catalysts reported up to now. Under the mild conditions of 64°C, catalyst amount of 2.5%, methanol/oil mol ratio of 15, and reaction time of 2 h, the oil conversions for first three cycles remain above 95%.

引用

页码：405 / 411

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