燃料化学学报2017，Vol.45Issue(6)：689-696,8.
反应气中水对钼基甲烷化催化剂性能的影响
Influence of water on the methanation performance of Mo-based catalyst
摘要
Abstract
The effects of H2O on the performance of the sulfur-resistant Mo-based methanation catalysts were investigated by adding vapor into the reactant gas at the reaction conditions of 550℃, 5500h-1, 1.2% of H2S concentration.The results indicate that water caused irreversible deactivation of Mo-based catalyst supported on Al2O3, while additive Co and cerium-aluminum composite carrier can enhance the activity and improve the stability of the Mo-based catalyst for methanation of syngas.The promoter Co protects the active phase MoS2 of Mo-based catalyst, inhibits the irreversible deactivation caused by the addition of water.When the water content in reactant gas is increased, the water gas shift reaction increases and becomes the main reaction on catalysts, and the increase of water leads to further decrease of the catalyst activity and stability.关键词
耐硫甲烷化/Mo基催化剂/水/水煤气变换/失活Key words
sulfur-resistant methanation/Mo-based catalyst/water/water-gas shift/deactivation分类
化学化工引用本文复制引用
李振花,刘晨,谢春芳,王玮涵,王保伟,马新宾..反应气中水对钼基甲烷化催化剂性能的影响[J].燃料化学学报,2017,45(6):689-696,8.基金项目
The project was supported by the National Natural Science Foundation of China (21576203) and the National High-Technology Research and Development Program of China (863 program, 2015AA050504) （21576203）
国家自然科学基金(21576203)和国家高技术研究发展计划(863计划, 2015AA050504)资助 （21576203）
