Synthesis and catalytic performance of single phase Co<sub>2</sub>C catalyst for Fischer-Tropsch synthesis

LI Xiao; LIU Xing-wu; JIANG Dong; WEN Xiao-dong

Volume 46 Issue 4

Apr. 2018

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Article Navigation > Journal of Fuel Chemistry and Technology > 2018 > 46(4): 459-464

LI Xiao, LIU Xing-wu, JIANG Dong, WEN Xiao-dong. Synthesis and catalytic performance of single phase Co2C catalyst for Fischer-Tropsch synthesis[J]. Journal of Fuel Chemistry and Technology, 2018, 46(4): 459-464.

Citation:

LI Xiao, LIU Xing-wu, JIANG Dong, WEN Xiao-dong. Synthesis and catalytic performance of single phase Co₂C catalyst for Fischer-Tropsch synthesis[J]. Journal of Fuel Chemistry and Technology, 2018, 46(4): 459-464.

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Synthesis and catalytic performance of single phase Co₂C catalyst for Fischer-Tropsch synthesis

LI Xiao^{1, 2},
LIU Xing-wu³,
JIANG Dong^{1
,
,},
WEN Xiao-dong^{1, 3
,
,}

1.
State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China
3.
National Energy Center for Coal to Liquids, Synfuels China Co., Ltd, Huairou District, Beijing 101400, China

Funds:

the National Natural Science Foundation of China 21473229

the National Natural Science Foundation of China 91545121

More Information

Corresponding author: JIANG Dong, Tel: +86-10-69667816, E-mail: jdred@sxicc.ac.cn; WEN Xiao-dong, E-mail:wxd@sxicc.ac.cn
Received Date: 2018-01-04
Rev Recd Date: 2018-02-26

Available Online: 2021-01-23

Publish Date: 2018-04-10

Abstract

Abstract

Single phase Co₂C catalysts were prepared by carburizing Co with CO at 280℃ and 2 MPa for 48 h. X-ray diffraction (XRD), transmission electron microscopy (TEM), H₂ temperature-programmed reduction (H₂-TPR), and X-ray absorption spectroscopy (XAS) were carried out to explore the structure and composition of the prepared Co₂C samples. The Co₂C catalysts were also evaluated in the Fischer-Tropsch synthesis to study their stability and catalytic performance. It was interesting to observe that the CO conversion and the selectivity for C₅₊ products gradually increased, but the selectivity to methane decreased during the reaction. Comparing the fresh catalysts with used catalysts, it was easy to find that the used catalysts were the mixture of metallic Co and Co₂C. The newly generated metallic Co may lead to the changes of CO conversion and product selectivity during the reaction.
- Co₂C,
- metallic Co,
- Fischer-Tropsch synthesis,
- methane

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References(20)

References

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