Low-Temperature SCR of NO with NH<,3> on Mn-Based Catalysts Modified with Cerium

摘要：

A series of Mn-based catalysts, MnO<,x>, MnO<,x>-CeO <,2>, Pd-Mn-Ce, MnO<,x>/AC were prepared. And their performances for NO low-temperature SCR were investigated in this study. The NO conversion is about 90％ at 100℃ on MnO<,x>-CeO<,2> and almost all NO can be converted at 120℃. Similar results are also observed in the tests on MnO<,x>-CeO<,2>/AC. The excellent low-temperature catalytic activity of modified Mn-based catalysts, which may be mainly due to the oxygen storage function of Ce<,2>, can improve the oxygen flow on the catalysts surface. Then the oxidation of NO to NO<,2> is accelerated, which is the key step of NO SCR.

关键词： low-temperature selective catalytic reduction (SCR) NO cerium rare earths

作者: Tang Xiaolong(唐晓龙) Hao Jiming(郝吉明) Yi Honghong(易红宏) Ning Ping(宁平)

作者单位: Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming Department of Environmental Science & Engineering, Tsinghua University, Beijing 100084, China Faculty of Environmental Science & Engineering, Kunming University of Science & Technology, Kunming

会议类型: 国际会议

会议名称: 第五届国际稀土开发与应用研讨会(The Fifth International Conference on Rare Earth Decelopment and Applicatin)

会议地点: 包头

会议语种:英文

页码: 240-243

在线出版日期: 2007-08-07（万方平台首次上网日期，不代表论文的发表时间）