化工进展2017，Vol.36Issue(4)：1288-1293,6.DOI:10.16085/j.issn.1000-6613.2017.04.018
载体制备方法对MoO3/ZrO2耐硫甲烷化催化剂的影响
Effect of preparation method of ZrO2 support on catalytic performance of MoO3/ZrO2 for sulfur-resistant methanation
杨霞 1秦绍东 1李加波 1孙守理1
作者信息
- 1. 北京低碳清洁能源研究所,北京102209
- 折叠
摘要
Abstract
ZrO2 was preparedvia precipitation method and then used as the support of Mo catalysts for CO methanation in the presence of H2S. The impact of post precipitation procedures of ethanol-washing and digestion(aging in hot ethanol)on the evolution of textural,structural and morphological properties of zirconia was investigated. The physicochemical properties of ZrO2 supports and MoO3/ZrO2 catalysts were characterized by nitrogen adsorption-desorption,XRD,TEM and XPS. The results indicated that the post precipitation treatment was an effective means to achieve zirconia support with large specific surface area,and uniform and small particle size. The catalytic performance of the MoO3/ZrO2 catalysts was improved with ZrO2 prepared by digesting at high temperature,which could be related to the degree of sulfidation of Mo species and the enhancement of dispersed MoS2 active sites.关键词
一氧化碳/耐硫甲烷化/氧化锆/钼基催化剂/天然气Key words
carbon monoxide/sulfur-resistant methanation/zirconia/Mo-based catalyst/natural gas分类
化学化工引用本文复制引用
杨霞,秦绍东,李加波,孙守理..载体制备方法对MoO3/ZrO2耐硫甲烷化催化剂的影响[J].化工进展,2017,36(4):1288-1293,6.
