Influence of water on the methanation performance of Mo-based catalyst

LI Zhen-hua; LIU Chen; XIE Chun-fang; WANG Wei-han; WANG Bao-wei; MA Xin-bin

Volume 45 Issue 6

Jun. 2017

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Article Navigation > Journal of Fuel Chemistry and Technology > 2017 > 45(6): 689-696

LI Zhen-hua, LIU Chen, XIE Chun-fang, WANG Wei-han, WANG Bao-wei, MA Xin-bin. Influence of water on the methanation performance of Mo-based catalyst[J]. Journal of Fuel Chemistry and Technology, 2017, 45(6): 689-696.

Citation:

LI Zhen-hua, LIU Chen, XIE Chun-fang, WANG Wei-han, WANG Bao-wei, MA Xin-bin. Influence of water on the methanation performance of Mo-based catalyst[J]. Journal of Fuel Chemistry and Technology, 2017, 45(6): 689-696.

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Influence of water on the methanation performance of Mo-based catalyst

Key Lab for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

Funds:

the National Natural Science Foundation of China 21576203

the National High-Technology Research and Development Program of China 863 program

the National High-Technology Research and Development Program of China 2015AA050504

More Information

Corresponding author: WANG Wei-han, Tel:022-27409880, E-mail:wangwh@tju.edu.cn
Received Date: 2017-03-03
Rev Recd Date: 2017-04-21

Available Online: 2021-01-23

Publish Date: 2017-06-10

Abstract

Abstract

The effects of H₂O on the performance of the sulfur-resistant Mo-based methanation catalysts were investigated by adding vapor into the reactant gas at the reaction conditions of 550℃, 5 500 h^-1, 1.2% of H₂S concentration. The results indicate that water caused irreversible deactivation of Mo-based catalyst supported on Al₂O₃, while additive Co and cerium-aluminum composite carrier can enhance the activity and improve the stability of the Mo-based catalyst for methanation of syngas. The promoter Co protects the active phase MoS₂ of Mo-based catalyst, inhibits the irreversible deactivation caused by the addition of water. When the water content in reactant gas is increased, the water gas shift reaction increases and becomes the main reaction on catalysts, and the increase of water leads to further decrease of the catalyst activity and stability.
- sulfur-resistant methanation,
- Mo-based catalyst,
- water,
- water-gas shift,
- deactivation

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References(20)

References

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