化工学报2012，Vol.63Issue(11)：3519-3524,6.DOI:10.3969/j.issn.0438-1157.2012.11.020
Ni/Al2O3催化剂对高纯HCl中微量CO2甲烷化反应的催化性能
Methanation of trace carbon dioxide in high purity hydrogen chloride over Ni/Al2O3 catalyst
江罗 1陈标华 1张吉瑞2
作者信息
- 1. 北京化工大学化工资源有效利用国家重点实验室,北京100029
- 2. 北京华宇同方化工科技开发有限公司,北京100039
- 折叠
摘要
Abstract
Carbon dioxide methanation catalyst Ni/Al2O3 was prepared by the impregnation method using Al2O3 as carrier and Ni as active component. The catalytic performance in the methanation of carbon dioxide in high purity hydrogen chloride was evaluated in an isothermal fixed-bed reactor. The influence of temperature, pressure, hydrogen chloride volume space velocity and molar ratio of hydrogen to carbon dioxide on the conversion of CO2 over the Ni/Al2O3 catalyst was investigated and the catalyst stability and regeneration performance of the catalyst were evaluated. The results showed that the methanation conversion of CO2 was about 90% under the optimal process condition as follows; temperature 250℃ , pressure 4. 0 Mpa, hydrogen chloride volume space velocity 100 h-1 and H2/CO2 molar ratio 500 :1, promising satisfactory removal of trace amount of CO2 from high purity hydrogen chloride. The catalyst would rapidly deactivate after the reaction when temperature was higher than 300℃ and catalyst regeneration could only partially restore catalyst activity.关键词
高纯氯化氢/二氧化碳甲烷化/镍/氧化铝催化剂Key words
high purity hydrogen chloride/ methanation of carbon dioxide/ nickel/alumina catalyst分类
化学化工引用本文复制引用
江罗,陈标华,张吉瑞..Ni/Al2O3催化剂对高纯HCl中微量CO2甲烷化反应的催化性能[J].化工学报,2012,63(11):3519-3524,6.
