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

LI Mei; LV Peng-mei; YANG Ling-mei; LUO Wen; WANG Zhong-ming; LI Hui-wen; YUAN Zhen-hong

Volume 40 Issue 04

Apr. 2012

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Article Navigation > Journal of Fuel Chemistry and Technology > 2012 > (04): 405-412

LI Mei, LV Peng-mei, YANG Ling-mei, LUO Wen, WANG Zhong-ming, LI Hui-wen, YUAN Zhen-hong. Magnetic Fe-Ca oxide as a solid base catalyst for transesterification of rapeseed oil to produce biodiesel[J]. Journal of Fuel Chemistry and Technology, 2012, (04): 405-412.

Citation:

LI Mei, LV Peng-mei, YANG Ling-mei, LUO Wen, WANG Zhong-ming, LI Hui-wen, YUAN Zhen-hong. Magnetic Fe-Ca oxide as a solid base catalyst for transesterification of rapeseed oil to produce biodiesel[J]. Journal of Fuel Chemistry and Technology, 2012, (04): 405-412.

Citation:

LI Mei, LV Peng-mei, YANG Ling-mei, LUO Wen, WANG Zhong-ming, LI Hui-wen, YUAN Zhen-hong. Magnetic Fe-Ca oxide as a solid base catalyst for transesterification of rapeseed oil to produce biodiesel[J]. Journal of Fuel Chemistry and Technology, 2012, (04): 405-412.

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

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

Received Date: 2011-04-11
Rev Recd Date: 2011-07-03
Publish Date: 2012-04-30

Abstract

Abstract

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 (45.7emu/g), much higher than that of those magnetic base catalysts reported up to now. Under the mild conditions of 64℃, catalyst amount of 2.5%, methanol/oil mol ratio of 15, and reaction time of 2h, the oil conversions for first three cycles remain above 95%.
- magnetic solid base catalyst,
- CaO,
- Fe₂O₃,
- biodiesel,
- rapeseed oil

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References(29)

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