Effects of promoters on carburized fused iron catalysts in Fischer-Tropsch synthesis

LIU Xiao-ling; MA Cai-lian; ZHAO Wen-tao; ZHANG Juan; CHEN Jian-gang

doi:10.1016/S1872-5813(21)60159-7

Volume 49 Issue 10

Oct. 2021

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Article Navigation > Journal of Fuel Chemistry and Technology > 2021 > 49(10): 1504-1512

LIU Xiao-ling, MA Cai-lian, ZHAO Wen-tao, ZHANG Juan, CHEN Jian-gang. Effects of promoters on carburized fused iron catalysts in Fischer-Tropsch synthesis[J]. Journal of Fuel Chemistry and Technology, 2021, 49(10): 1504-1512. doi: 10.1016/S1872-5813(21)60159-7

Citation:

LIU Xiao-ling, MA Cai-lian, ZHAO Wen-tao, ZHANG Juan, CHEN Jian-gang. Effects of promoters on carburized fused iron catalysts in Fischer-Tropsch synthesis[J]. Journal of Fuel Chemistry and Technology, 2021, 49(10): 1504-1512. doi: 10.1016/S1872-5813(21)60159-7

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Effects of promoters on carburized fused iron catalysts in Fischer-Tropsch synthesis

doi: 10.1016/S1872-5813(21)60159-7

LIU Xiao-ling^{1, 2
,},
MA Cai-lian³,
ZHAO Wen-tao⁴,
ZHANG Juan^{1
,
,},
CHEN Jian-gang^{1
,
,}

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.
Shanxi Institute of Energy, Taiyuan 030001, China
4.
Beijing Sanju Environmental Protection & New Materials Co., Ltd. Beijing 100049, China

Funds: The project was supported by the National Natural Science Foundation of China (22072175, 21673272) and Beijing Sanju Environmental Protection & New Materials Co., Ltd (SJHT-18038)

More Information

Author Bio:
liuxiaoling@sxicc.ac.cn
Corresponding author: Tel/Fax: 0351-4064128, E-mail: zhangj@sxicc.ac.cn; chenjg@sxicc.ac.cn
Received Date: 2021-03-24
Rev Recd Date: 2021-04-14

Available Online: 2021-09-09

Publish Date: 2021-10-30

Abstract

Abstract

The effects of K, Ru or La promoters on the structure, surface area, crystal phase, and catalytic behavior during FT synthesis of carburized and uncarburized fused Fe catalysts were studied by XRD, XPS, TPD, N₂-physisorption and catalytic reaction evaluation techniques. Addition of K improved selectivity of C₅₊ products for both the carburized and uncarburized catalysts. Addition of Ru suppressed catalytic activity of the carburized catalyst, but had little influence on the uncarburized one. Addition of La led to the encapsulation of the iron carbide, which consequently severely inhibited the carburization and decreased the activity. While Ru and La promote the formation of light components due to their ability to promote hydrogen adsorption. The performance of the reaction in the experiment indicated that the U-K catalyst had the best product distribution, in which the methane selectivity was 4.04%, and the C₅₊ selectivity was 75.84%.
- Fischer-Tropsch synthesis,
- carburization,
- promoter,
- activity,
- C₅₊ selectivity

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References(24)

References

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