Synergetic Effects between Al2O3 and HZSM-5 for NO Reduction by CH4

摘要：

Three different kinds of Al2O3 have been added to HZSM-5 for improving its activity towards selective catalytic reduction of NO with CH4 in the presence of excess of oxygen. Higher conversions of NO have been observed for all of the three mixed catalysts, the conversion of which were also found to be higher than that of each separate component of the catalysts. It was concluded that there exists a synergetic effect between Al2O3 and HZSM-5. The addition of Al2O3 can improve the catalytic activity of HZSM-5 by inhibiting the decomposing of NO2 to NO and accelerating the activation of methane. Adsorbed NO2 is then reduced by the activated methane or the intermediates formed from activated methane to N2 over the Br?nsted site of zeolite.

关键词： Al2O3 HZSM-5 synergetic effect NOx selective catalytic reduction

作者: Lili Ren Xiaomei Pan

作者单位: School of Chemistry and Chemical Engineering,Southeast University,Nanjing 211189,China

会议类型: 国际会议

会议名称: the 2011 International Conference on Key Engineering Materials(ICKEM 2011)(2011关键工程材料国际会议)

会议地点: 三亚

会议语种:英文

页码: 364-368

在线出版日期: 2011-03-25（万方平台首次上网日期，不代表论文的发表时间）