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

被引：67
作者：
Liu, Qing [1 ,2 ]
Qiao, Yingyun [3 ]
Tian, Yuanyu [1 ,3 ]
Gu, Fangna [2 ]
Zhong, Ziyi [4 ]
Su, Fabing [2 ,5 ]
机构：
[1] Shandong Univ Sci & Technol, Coll Chem & Environm Engn, Key Lab Low Carbon Energy & Chem Engn, Qingdao 2665906, Shandong, Peoples R China
[2] Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
[3] China Univ Petr East China, State Key Lab Heavy Oil Proc, Qingdao 266580, Shandong, Peoples R China
[4] ASTAR, Inst Chem & Engn Sci, 1 Pesek Rd, Singapore 627833, Singapore
[5] Shenyang Univ Chem Technol, Inst Ind Chem & Energy Technol, Shenyang 110142, Liaoning, Peoples R China
来源：
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2017年 / 56卷 / 35期
基金：
中国国家自然科学基金;
关键词：
ONE-POT SYNTHESIS; CARBON-DIOXIDE; NI/GAMMA-AL2O3; CATALYSTS; ALUMINA CATALYSTS; NI/AL2O3; CATALYST; NATURAL-GAS; EFFICIENT; OXIDES; CU; NI/ALPHA-AL2O3;
D O I：
10.1021/acs.iecr.7b02174
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
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 H-2 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 (<5.0 nm).
引用
收藏
页码：9809 / 9820
页数：12
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