化工进展Issue(8)：1845-1848,1875,5.DOI:10.3969/j.issn.1000-6613.2013.08.021
镍盐前体对Ni-Fe/γ-Al2O3催化剂甲烷化性能的影响
Catalytic performance of Ni-Fe/γ-Al2O3 catalyst prepared from different nickel precursors for CO methanation
摘要
Abstract
Bimetallic Ni-Fe/γ-Al2O3 catalysts were prepared from different nickel precursors of Ni(NO3)2,Ni(CH3CO2)2 and NiCl2 (denoted as Ni-Fe-N,Ni-Fe-Ac,Ni-Fe-Cl,respectively) by the impregnation method. The catalysts for CO methanation in a slurry-bed reactor were investigated using XRD,CO-TPD and H2-TPR. Ni-Fe-N showed maximal catalytic activity for CO methanation,with CO conversion of 97.2% and CH4 selectivity of 87.3%,while Ni-Fe-Cl showed a minimum activity with CO conversion of 47.3% and CH4 selectivity of 58.7%. The higher activity of Ni-Fe-N was attributed to high dispersion of NiO,interaction between Ni and Fe in bimetallic catalyst and high adsorption capacity for CO.关键词
前体/浆态床/CO甲烷化/镍铁双金属催化剂Key words
precursor/slurry-bed/CO methanation/bimetallic Ni-Fe catalyst分类
化学化工引用本文复制引用
钟朋展,孟凡会,崔晓曦,刘军,李忠..镍盐前体对Ni-Fe/γ-Al2O3催化剂甲烷化性能的影响[J].化工进展,2013,(8):1845-1848,1875,5.基金项目
国家重点基础研究发展计划（2012CB723105）及太原理工大学2012年校青年基金（2012L040）项目。 （）
