Ordered Mesoporous Ni–Fe–Al Catalysts for CO Methanation with Enhanced Activity and Resistance to Deactivation

Ordered Mesoporous Ni–Fe–Al Catalysts for CO Methanation with Enhanced Activity and Resistance to Deactivation

A series of ordered mesoporous Ni–Fe–Al ternary oxide composites were prepared via a one-pot evaporation-induced self-assembly (EISA) method and applied in a CO methanation reaction to produce synthetic natural gas. The results showed that the ordered mesoporous Ni–Fe–Al catalyst with proper amount...

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Veröffentlicht in:Industrial & engineering chemistry research 2017-09, Vol.56 (35), p.9809-9820
Hauptverfasser: Liu, Qing, Qiao, Yingyun, Tian, Yuanyu, Gu, Fangna, Zhong, Ziyi, Su, Fabing
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container_end_page 9820
container_issue 35
container_start_page 9809
container_title Industrial & engineering chemistry research
container_volume 56
creator Liu, Qing
Qiao, Yingyun
Tian, Yuanyu
Gu, Fangna
Zhong, Ziyi
Su, Fabing
description A series of ordered mesoporous Ni–Fe–Al ternary oxide composites were prepared via a one-pot evaporation-induced self-assembly (EISA) method and applied in a CO methanation reaction to produce synthetic natural gas. The results showed that the ordered mesoporous Ni–Fe–Al catalyst with proper amount of Fe species (10N1FOMA) had better both CO conversion and CH4 selectivity than the impregnation-derived 10N1FA catalyst with unordered mesopores and identical component, owing to the higher Ni dispersion and larger H2 uptake. In a 120 h atmospheric-pressure lifetime test, the ordered mesoporous 10N1FOMA catalyst showed significant enhancement in both antisintering and anticoking properties in comparison with the unordered mesoporous 10N1FA, mainly because of the confinement effect of the mesopore channels, the weak acidity of ordered mesoporous alumina support, and the smaller Ni particle size (
doi_str_mv 10.1021/acs.iecr.7b02174
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