Preparation of magnetic core-shell CaO-MgO@CoFe<sub>2</sub>O<sub>4</sub> solid base and its catalytic performance in the transesterification of soybean oil to biodiesel

FAN Ming-ming; LIU Yan-lei; ZHANG Ping-bo; JIANG Ping-ping

Volume 44 Issue 4

Apr. 2016

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Article Navigation > Journal of Fuel Chemistry and Technology > 2016 > 44(4): 422-427

FAN Ming-ming, LIU Yan-lei, ZHANG Ping-bo, JIANG Ping-ping. Preparation of magnetic core-shell CaO-MgO@CoFe2O4 solid base and its catalytic performance in the transesterification of soybean oil to biodiesel[J]. Journal of Fuel Chemistry and Technology, 2016, 44(4): 422-427.

Citation:

FAN Ming-ming, LIU Yan-lei, ZHANG Ping-bo, JIANG Ping-ping. Preparation of magnetic core-shell CaO-MgO@CoFe₂O₄ solid base and its catalytic performance in the transesterification of soybean oil to biodiesel[J]. Journal of Fuel Chemistry and Technology, 2016, 44(4): 422-427.

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Preparation of magnetic core-shell CaO-MgO@CoFe₂O₄ solid base and its catalytic performance in the transesterification of soybean oil to biodiesel

FAN Ming-ming^{1, 2},
LIU Yan-lei^{1, 2},
ZHANG Ping-bo^{1, 2
,
,},
JIANG Ping-ping^{1, 2}

1.
School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China;
2.
The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, Wuxi 214122, China

More Information

Corresponding author: E-mall: pingbozhang@126.com.
Received Date: 2015-10-30
Rev Recd Date: 2016-01-11

Available Online: 2021-01-23

Publish Date: 2016-04-30

Abstract

Abstract

A magnetic core-shell CaO-MgO@CoFe₂O₄ solid base was prepared with oxalates as the precursor through a two-step method, which was used as the catalyst for the transesterification of soybean oil to biodiesel with methanol. The CaO-MgO@CoFe₂O₄ catalyst was characterized by magnetic hysteresis loop, X-ray diffraction (XRD), CO₂-TPD and transmission electron microscopy (TEM); the effects of core-shell molar ratio, catalyst calcination temperature, reaction temperature, reaction time, methanol/oil molar ratio and catalyst amount on the yield of biodiesel were investigated. The results indicated that over the CaO-MgO@CoFe₂O₄ catalyst with a core-shell molar ratio of 1:6 and calcined at 700 ℃, the biodiesel yield reaches 97.1% after conducting the transesterification reaction at 65 ℃ for 3 h, when the methanol/oil mol ratio is 12 and the amount of catalyst is 1.0% by mass. The catalyst exhibits excellent reusability; the biodiesel yield remains above 90% after reusing for four cycles.
- biodiesel,
- magnetic solid base catalyst,
- transesterification,
- soybean oil,
- CaO-MgO@CoFe₂O₄

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References(24)

References

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