Cu基分子筛NH3-SCR脱硝催化剂的研究进展  

Progress of Cu-zeolites catalysts for removal of NO with NH_3 selective catalytic reduction technology

作　　者：张冉冉[1,2] 李永红[1,2,3] 

机构地区：[1]绿色合成与转化教育部重点实验室,天津大学化工学院,天津300072 [2]天津化学化工协同创新中心,天津300072 [3]精馏技术国家工程研究中心,天津300072

出　　处：《现代化工》2015年第8期67-71,共5页Modern Chemical Industry

基　　金：长江学者和教育部创新团队发展计划(IRT0936)

摘　　要：目前铜基分子筛催化剂在较宽温度窗口内具有良好的SCR活性、高的N2选择性和水热稳定性,成为柴油车尾气净化领域最有应用前景的催化剂。因此对Cu基分子筛Cu-ZSM-5、Cu-SSZ-13和Cu-SAPO-34的脱硝性能进行了对比研究,综述了其活性物种类型、位置与催化活性的关系和这些催化剂的NH3-SCR反应机理。Cu-zeo｜ites exhibit excellent SCR activity, N2 selectivity and hydrothermal stability in wide temperature window ,and are considered as the most potential commercial catalysts in the field of diesel exhaust purifying field. Therefore, the NH3-SCR reaction performances are compared. The relationship between active species or their position and catalytic activity are summarized. The reaction mechanism of NH3-SCR over Cu-ZSM-5, Cu-SSZ-13 and Cu-SAPO-34 are reviewed.

关 键 词：Cu基分子筛 氨气选择性催化还原 氮氧化物 原位红外 

分 类 号：X701[环境科学与工程—环境工程]