摘要
选择性催化还原(NH_3-SCR)NO_x是目前用于NO_x消除的主流技术.小孔分子筛催化剂(如Cu/SSZ-13 Cu/SAPO-34等)在NO_x的脱除中表现出良好的催化活性和水热稳定性,是环境催化领域研究的热点.本文重点总结和评述了几种不同过渡金属负载的小孔分子筛(特别是Cu分子筛)在NH_3-SCR脱除NO_x中的性能、影响因素以及NH_3-SCR的反应机理,并展望了小孔分子筛在NO_x脱除中未来的发展方向.
Selective catalytic reduction of NOx by NH3（NH3-SCR） is one of the most effective methods for the removal of NOx. Small-pore zeolite catalysts, such as Cu/SSZ-13 and Cu/SAPO-34, have attracted more and more attention for the NH3-SCR of NOx due to the high activity and hydrothermal stability. The recent advances of NH3-SCR of NOxover small-pore zeolite catalysts（especially Cu-based zeolite） are reviewed. Special attention is laid on the catalytic performance, influence factors and the NH3-SCR reaction mechanism. Finally, future research on the small-pore zeolite catalysts for NH3-SCR of NOxis proposed.
作者
周子正
王智华
刘志明
Zizheng Zhou;Zhihua Wang;Zhiming Liu(State Key Laboratory of Chemical Resource Engineering, Beijing University of Chemical Technology, Beijing 100029, China;Beijing Key Laboratory of Energy Environmental Catalysis, Beijing University of Chemical Technology, Beijing 100029, China)
出处
《中国科学：化学》
CAS
CSCD
北大核心
2018年第6期562-573,共12页
SCIENTIA SINICA Chimica
基金
国家重点研发计划(编号:2017YFC0210700)
国家自然科学基金(编号:21677008)资助
关键词
氮氧化物
选择性催化还原
NH3
小孔分子筛
nitrogen oxides
selective catalytic reduction
NH3
small-pore zeolite
