燃料化学学报2016，Vol.44Issue(12)：1479-1484,6.
柠檬酸对MoO3/CeO2-Al2 O3催化剂耐硫甲烷化性能的影响
Effect of citric acid addition on MoO3/CeO2-Al2 O3 catalyst for sulfur-resistant methanation
摘要
Abstract
Citric acid hold great promise to improve the Mo-based catalyst performance for hydrogenation reaction applications. MoO3/CeO2-Al2 O3 catalysts were prepared by impregnation method with adding citric acid into CeO2-Al2 O3 composite supports and tested for sulfur resistant methanation. The syngas methanation activity increased with the increase of citric acid additive amount, and CO conversion could reach up 60% when the molar ratio of citric acid to Ce was 3. The prepared catalysts were characterized by BET, H2-TPR, XRD and XPS. The increased catalytic performance was mainly attributed to the increased amount of Ce species on the surface of catalysts which could decreased the interaction force between MoO3 and CeO2-Al2 O3 supports. Additionally, the increased specific surface of CeO2-Al2 O3 composite support was also in favor of catalytic performance.关键词
合成天然气/甲烷化/CeO2/柠檬酸Key words
synthetic natural gas/methanation/CeO2/citric acid分类
化学化工引用本文复制引用
王保伟,孟大钧,王玮涵,李振花,马新宾..柠檬酸对MoO3/CeO2-Al2 O3催化剂耐硫甲烷化性能的影响[J].燃料化学学报,2016,44(12):1479-1484,6.基金项目
The project was supported by the National High Technology Research and Development Program of China (863 program,2015AA050504).国家高技术研究发展计划(863计划,2015AA050504)资助 （863 program,2015AA050504）
