铈铝复合载体对钼基催化剂耐硫甲烷化催化性能的研究

王保伟; 尚玉光; 丁国忠; 王海洋; 王二东; 李振花; 马新宾; 秦绍东; 孙琦

铈铝复合载体对钼基催化剂耐硫甲烷化催化性能的研究

1.
天津大学化工学院绿色合成与转化教育部重点实验室, 天津 300072;
2.
北京低碳清洁能源研究所, 北京 102209

详细信息

通讯作者:
马新宾,Tel:(022)27409248;Fax:(022)87401818;E-mail:xbma@tju.edu.cn

中图分类号: O643.3
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出版历程
- 收稿日期: 2012-03-06
- 修回日期: 2012-06-25
- 刊出日期: 2012-11-30

Ceria-alumina composite support on the sulfur-resistant methanation activity of Mo-based catalyst

1.
Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
2.
National Institute of Clean and Low Carbon Energy, Beijing 102209, China

摘要

摘要: 采用共沉淀法、浸渍法和沉积沉淀法制备了CeO₂-Al₂O₃复合载体,比较了不同复合载体浸渍钴钼后的耐硫甲烷化催化性能,并优化了复合载体中CeO₂的含量。结合N₂物理吸附、XRD、H₂-TPR等表征手段对复合载体及其负载的钴钼催化剂进行物相和结构分析发现,在Al₂O₃中添加CeO₂可以明显提高合成气的耐硫甲烷化活性,其中,沉积沉淀法制备的25% CeO₂-Al₂O₃复合载体负载钴钼后具有最佳催化活性。
- 氧化铈 /
- 氧化铝 /
- 复合载体 /
- 钴钼催化剂 /
- 耐硫甲烷化
Abstract: Ceria-alumina composite supports were prepared by co-precipitation, impregnation and deposition-precipitation method, respectively. Co-Mo catalysts supported on the composite supports were evaluated for sulfur-resistant methanation and the appropriate content of CeO₂ in the composite support was further studied. All the samples were characterized by nitrogen adsorption, X-ray diffraction (XRD) and hydrogen temperature-programmed reduction (H₂-TPR). It was found that addition of CeO₂ to Al₂O₃ significantly increased the activity of methanation and 25% CeO₂-Al₂O₃ prepared by deposition-precipitation method had the best sulfur-resistant methanation activity.
- ceria /
- alumina /
- composite support /
- Co-Mo catalyst /
- sulfur-resistant methanation

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参考文献(30)

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