Effect of Al<sub>2</sub>O<sub>3</sub> addition on the catalytic performance of Co/SiC catalyst for Fischer-Tropsch synthesis

KONG Xiao; HOU Bo; JIA Li-tao; HUANG Wei; SUN Zhi-qiang; LI De-bao; LI Jin-ping

Volume 41 Issue 10

Oct. 2013

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Article Navigation > Journal of Fuel Chemistry and Technology > 2013 > 41(10): 1217-1222

KONG Xiao, HOU Bo, JIA Li-tao, HUANG Wei, SUN Zhi-qiang, LI De-bao, LI Jin-ping. Effect of Al2O3 addition on the catalytic performance of Co/SiC catalyst for Fischer-Tropsch synthesis[J]. Journal of Fuel Chemistry and Technology, 2013, 41(10): 1217-1222.

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KONG Xiao, HOU Bo, JIA Li-tao, HUANG Wei, SUN Zhi-qiang, LI De-bao, LI Jin-ping. Effect of Al₂O₃ addition on the catalytic performance of Co/SiC catalyst for Fischer-Tropsch synthesis[J]. Journal of Fuel Chemistry and Technology, 2013, 41(10): 1217-1222.

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Effect of Al₂O₃ addition on the catalytic performance of Co/SiC catalyst for Fischer-Tropsch synthesis

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 Lu'an (Mining) Group Co. Ltd, Changzhi 046204, China

Received Date: 2013-02-08
Rev Recd Date: 2013-04-15
Publish Date: 2013-10-30

Abstract

Abstract

Two Al₂O₃-modified catalysts were prepared by urea hydrolysis method and precipitation disposition method respectively. Combined with N₂ adsorption, XRD, XPS and H₂-TPR, the effects of Al₂O₃ on the physico-chemical properties and catalytic properties for the Fischer-Tropsch synthesis were investigated. It was found that the metal-support interaction could be effectively strengthened for both catalysts. Consequently, the dispersion of the catalyst was enhanced and the Fischer-Tropsch synthesis activity was increased. The results also indicated that the modification of Co/SiC catalyst strongly depended on the preparation method. The highest CO conversion was observed on the catalyst prepared by urea hydrolysis method due to the superior dispersion and good reducibility. Besides, the catalytic stability was enhanced due to the stronger interaction between cobalt and Al₂O₃ prepared by precipitation disposition method.
- Fischer-Tropsch synthesis,
- cobalt-based catalyst,
- Al₂O₃ promoter,
- urea hydrolysis,
- precipitation disposition

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References

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