Citation: FU Chang-liang, WANG Li-ping, WANG Shao-peng, WANG Dong-jiao, ZHAO Ya-wen, MEI Meng-di. Preparation and properties of Ni/KIT-6 catalysts modified with different metals for methanation of CO₂[J]. Journal of Fuel Chemistry and Technology, ;2020, 48(4): 476-482. shu

Preparation and properties of Ni/KIT-6 catalysts modified with different metals for methanation of CO₂

1.
School of Chemical Engineering and Food Science, Zhengzhou Institute of Technology, Zhengzhou 450044, China
2.
Zhengzhou Key Laboratory of Applied Chemical Industry, Zhengzhou 450044, China

Corresponding author: FU Chang-liang, fuchangliang@163.com
Received Date: 7 January 2020
Revised Date: 27 February 2020

Fund Project: The project was supported by the Henan Science and Technology Open Cooperation Project (172106000067) and the Funding Scheme for Young Key Teachers in Colleges and Universities of Henan Province (2013GGJS-297)the Funding Scheme for Young Key Teachers in Colleges and Universities of Henan Province 2013GGJS-297the Henan Science and Technology Open Cooperation Project 172106000067

Figures(5)

Ni/KIT-6 catalysts modified by Mg, Ce, V and La for CO₂ methanation were prepared by co-impregnation method.The catalysts were characterized by N₂ absorption-desorption, XRD, H₂-TPD and TEM.The effects of different promoters on structure and properties of Ni/KIT-6 catalysts were investigated. The results show that the dispersity of Ni and promoters are very high. The dispersion of Ni particles depends primarily on the confinement effect of the well-ordered mesoporous structure of KIT-6, and is not affected by the addition of metal promoters. The addition of promoters does not affect the surface morphology of Ni/KIT-6 catalyst, but has effects on the difficulty and reduction degree of Ni reduction. Among the metal promoters studied, V addition makes the reduction of NiO in the catalyst easily and results in a high reduction degree. The oxide of V can change the reaction mechanism of CO₂ methanation, resulting in the best methanation performance. Compared with the unmodified catalyst, the catalyst modified by V makes the conversion of CO₂ and the selectivity of CH₄ increase by 3.7% and 11.6% respectively. The selectivity of CH₄ is 100%.
- Ni catalyst,
- KIT-6 carrier,
- carbon dioxide,
- methanation
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Preparation and properties of Ni/KIT-6 catalysts modified with different metals for methanation of CO2

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通讯作者: 陈斌, bchen63@163.com

Preparation and properties of Ni/KIT-6 catalysts modified with different metals for methanation of CO₂