Performance of hierarchical ZSM-5 supported cobalt catalyst in the Fischer-Tropsch synthesis

WEN Xiong; ZHANG Yu-hua; LIU Cheng-chao; HONG Jing-ping; WEI Liang; CHEN Yao; LI Jin-lin

Volume 45 Issue 8

Aug. 2017

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WEN Xiong, ZHANG Yu-hua, LIU Cheng-chao, HONG Jing-ping, WEI Liang, CHEN Yao, LI Jin-lin. Performance of hierarchical ZSM-5 supported cobalt catalyst in the Fischer-Tropsch synthesis[J]. Journal of Fuel Chemistry and Technology, 2017, 45(8): 950-955.

Citation:

WEN Xiong, ZHANG Yu-hua, LIU Cheng-chao, HONG Jing-ping, WEI Liang, CHEN Yao, LI Jin-lin. Performance of hierarchical ZSM-5 supported cobalt catalyst in the Fischer-Tropsch synthesis[J]. Journal of Fuel Chemistry and Technology, 2017, 45(8): 950-955.

Citation:

WEN Xiong, ZHANG Yu-hua, LIU Cheng-chao, HONG Jing-ping, WEI Liang, CHEN Yao, LI Jin-lin. Performance of hierarchical ZSM-5 supported cobalt catalyst in the Fischer-Tropsch synthesis[J]. Journal of Fuel Chemistry and Technology, 2017, 45(8): 950-955.

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Performance of hierarchical ZSM-5 supported cobalt catalyst in the Fischer-Tropsch synthesis

Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, Wuhan 430074, China

Funds:

The project was supported by National Natural Science Foundation of China 21203253

The project was supported by National Natural Science Foundation of China 21473259

Received Date: 2017-05-03
Rev Recd Date: 2017-06-12

Available Online: 2021-01-23

Publish Date: 2017-08-10

Abstract

Abstract

Uniform ZSM-5 nanoparticles (around 180 nm) were synthesized by steam assisted crystallization method (SAC), which have a hierarchically porous structure, composed of abundant open mesopores from the stacking of ZSM-5 particles and micropores in the ZSM-5 crystallites. The hierarchical ZSM-5 supported cobalt catalyst, with a cobalt loading of 15%, was then prepared through incipient impregnation and used in Fischer-Tropsch synthesis (FTS). The hierarchical ZSM-5 support and Co-based catalyst were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and N₂ sorption. The results indicate that the hierarchical ZSM-5 supported cobalt catalyst performs excellently in FTS, since the mesoporous structure in the hierarchical ZSM-5 support can enhance the mass transfer of the reaction products and the acid sites on the microporous ZSM-5 framework can promote the hydrocracking of long chain hydrocarbon products. In comparison with the cobalt catalysts supported on bulk ZSM-5 and commercial ZSM-5, the hierarchical ZSM-5 supported cobalt catalyst exhibits much higher activity in FTS, lower selectivity to CH₄, and higher selectivity to C_5-20 hydrocarbons (68.9%).
- ZSM-5,
- steam assisted crystallization,
- hierarchical structure,
- cobalt-based catalyst,
- Fischer-Tropsch synthesis

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References(16)

References

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