Poisoning and Regeneration of a CeO2-WO/nO2 Catalyst Used in the Selective Catalytic Reduction of NOx with NH3

摘要：

The alkali metal-induced deactivation together with SO2 of a novel CeO2-WO3/TiO2 catalyst used for the selective catalytic reduction (SCR) was investigated. The CeO2WO3/TiO2 catalyst studied could resist greater amounts of alkali metals than V2O5s-WO3/TiO2 and V2O5/AC. SO2 could significantly lower the SCR activity (30％) of the CeO2-WO3/TiO2 catalyst at 200℃. Hot water washing is a convenient and effective method to regenerate alkali metal-poisoned CeO2-WO3/TiO2 catalyst, and the catalytic activity could be recovered 90％ of the fresh catalyst.

作者: Yue Peng Junhua Li

作者单位: School of Environment, Tsinghua University, Beijing, 100084, China Physical College, Jilin Universit School of Environment, Tsinghua University, Beijing, 100084, China

会议类型: 国际会议

会议名称: 环境模拟与污染控制国际学术研讨会暨第七届环境模拟与污染控制学术研讨会(International Conference on Environment Simulation and Pollution Control)

会议地点: 北京

会议语种:英文

页码: 293-294

在线出版日期: 2011-11-24（万方平台首次上网日期，不代表论文的发表时间）