Fe-SSZ-13分子筛的制备及其SCR催化性能和机理的研究进展  

Recent progress on the study of preparation,SCR activity and mechanism of Fe-SSZ-13 zeolite

作　　者：刘春红 张爱民 杜凯敏 胡晨晖 卓佐西 林贻超 陈亮[4] LIU Chunhong;ZHANG Aiming;DU Kaimin;HU Chenhui;ZHUO Zuoxi;LIN Yichao;CHEN Liang(Zhejiang Provincial Key Laboratory of Energy Conservation&Pollutant Control Technology for Thermal Power,Hangzhou,Zhejiang 311121,China;Zhejiang Energy Group R&D Institute Co.,Ltd.,Hangzhou,Zhejiang 311121,China;Zhejiang Zheneng Changxing Power Generation Co.,Ltd.,Huzhou,Zhejiang 313000,China;Ningbo Institute of Materials Technology and Engineering,Chinese Academy of Sciences,Ningbo,Zhejiang 315201,China)

机构地区：[1]浙江省火力发电高效节能与污染物控制技术研究重点实验室,浙江杭州311121 [2]浙江浙能技术研究院有限公司,浙江杭州311121 [3]浙江浙能长兴发电有限责任公司,浙江湖州313000 [4]中国科学院宁波材料技术与工程研究所,浙江宁波315201

出　　处：《河北工业大学学报》2020年第6期40-45,共6页Journal of Hebei University of Technology

基　　金：浙江省能源集团有限公司科技项目(ZNKJ-2018-114);宁波市科技创新2025重大专项(2018B10028);国家自然科学基金(51872306)。

摘　　要：Fe-SSZ-13分子筛对于氮氧化物(NOx)具有优异的选择性催化还原活性,高N2选择性和水热稳定性,以及抵抗H2O和SO2中毒能力,可潜在应用于重型柴油车尾气的脱硝。本文首先综述了Fe-SSZ-13的分子筛合成方法,指出了各合成方法的优缺点;其次,总结讨论了目前Fe-SSZ-13分子筛对于氮氧化物催化机理的研究,针对目前Fe-SSZ-13分子筛普遍存在催化活性不高与催化温度局限的问题,介绍了铁形态优化、分子筛与催化剂杂化协同作用及复合型分子筛合成等优化调控方法;最后,提出开发低成本、高效率和环保的Fe-SSZ-13分子筛合成方法及其催化机理的探索是今后的研究重点。Since Fe-SSZ-13 zeolite are featured with excellent selective catalytic reduction of NOx performance,high N2 selectivity,high hydrothermal stability and resistance to H2O and SO2 poisoning,it can be applied to reduce NOx in the exhaust of diesel-powered vehicles.In this review,first,the syntheses of Fe-SSZ-13 zeolite are summarized,and the advantages and disadvantages are also discussed.Second,the SCR mechanism of Fe-SSZ-13 zeolite are summarized and discussed,and the strategies to improve the Fe-SSZ-13 catalytic activity at low temperature are outlined,including the optimization of Fe iron change and Fe species,hybrid synergism for zeolite and meal oxide mixture,and co-exchanged zeolite.Finally,it is proposed that the relevant future research will focus on the development of new Fe-SSZ-13 zeolite synthesis method with low cost,high efficiency and environmental protection,and understanding its SCR mechanism.

关 键 词：Fe-SSZ-13分子筛 合成 选择性催化还原 催化机理 

分 类 号：O643.36[理学—物理化学]