Catalytic activity of Ni/SSZ-13 catalyst for CO<sub>2</sub> methanation

ZHANG Jin-chuan; YANG Ying-ju; LIU Jing; HUA Zhi-xuan

doi:10.19906/j.cnki.JFCT.2021041

Volume 49 Issue 7

Jul. 2021

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ZHANG Jin-chuan, YANG Ying-ju, LIU Jing, HUA Zhi-xuan. Catalytic activity of Ni/SSZ-13 catalyst for CO2 methanation[J]. Journal of Fuel Chemistry and Technology, 2021, 49(7): 960-966. doi: 10.19906/j.cnki.JFCT.2021041

Citation:

ZHANG Jin-chuan, YANG Ying-ju, LIU Jing, HUA Zhi-xuan. Catalytic activity of Ni/SSZ-13 catalyst for CO₂ methanation[J]. Journal of Fuel Chemistry and Technology, 2021, 49(7): 960-966. doi: 10.19906/j.cnki.JFCT.2021041

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Catalytic activity of Ni/SSZ-13 catalyst for CO₂ methanation

doi: 10.19906/j.cnki.JFCT.2021041

State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China

Funds: The project was supported by the Fundamental Research Funds for the Central Universities (2019KFYRCPY021)

Received Date: 2020-12-18
Rev Recd Date: 2021-01-19

Available Online: 2021-03-30

Publish Date: 2021-07-15

Abstract

Abstract

Ni/SSZ-13 catalyst was prepared by the impregnation method and used to catalyze CO₂ methanation in a fixed-bed reactor. The microstructure and physical-chemical properties of catalyst were characterized by N₂ physical adsorption, X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The results show that Ni/SSZ-13 catalyst initiates catalytic activity towards CO₂ methanation at 250 ℃. Ni/SSZ-13 catalyst shows the optimal performance for CO₂ methanation at 450 ℃. CO₂ conversion rate and CH₄ selectivity are 70% and 95%, respectively. SSZ-13 support shows a cuboid structure. Moreover, SSZ-13 support mainly possesses microporous and contains some mesopores, which provide larger surface area for nickel species dispersion. During the reduction process of the calcined catalyst at 500 ℃, NiO is reduced by H₂ into metal Ni, which is the main active component for CO₂ methanation.
- carbon dioxide,
- methanation,
- Ni/SSZ-13,
- catalyst,
- catalytic activity

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References(14)

References

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