La Modified Fe–Mn/TiO2 Catalysts to Improve SO2 Resistance for NH3-SCR at Low-Temperature

被引：0
作者：
Xinxin Hou
Hongping Chen
Yinghua Liang
Yonglin Wei
Zeqing Li
机构：
[1] North China University of Science and Technology,College of Chemical Engineering
[2] Xinjiang University of Science and Technology,Department of Chemical Engineering
来源：
Catalysis Surveys from Asia | 2020年 / 24卷
关键词：
NH; -SCR; Low temperature; Fe–Mn/TiO; catalyst; La modification; SO; resistance;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
La modified TiO2 prepared by sol–gel method as the support of Fe–Mn/TiO2(xLa) catalyst significantly improved SO2 resistance. La inhibited the growth of TiO2 particle, and led to the obvious layered structure of TiO2 and more mesopores, which accelerated the decomposition of ammonium sulfate. The increase of Brønsted acid sites and the electron transfer between La and active components Fe and Mn in La doped catalysts inhibit the adsorption and oxidation of SO2 on the catalyst, thus improving the SO2 resistance.
引用
收藏
页码：291 / 299
页数：8
相关论文
共 50 条
  • [21] The effect of dopants (Fe, Al) on the low-temperature activity and SO2 tolerance in solvothermally synthesized MnOx NH3-SCR catalysts
    Li, Huirong
    Schill, Leonhard
    Gao, Qi
    Mossin, Susanne
    Riisager, Anders
    FUEL, 2024, 358
  • [22] Improvement of NH3-SCR performance and SO2 resistance over Sn modified CeMoOx electrospun fibers at low temperature
    Hao, Zhifei
    Jiao, Yongli
    Shi, Qiang
    Zhang, He
    Zhan, Sihui
    CATALYSIS TODAY, 2019, 327 : 37 - 46
  • [23] Mechanistic study of Ce-modified MnO x /TiO2 catalysts with high NH3-SCR performance and SO2 resistance at low temperatures
    Li, Fengxiang
    Xie, Junlin
    Fang, De
    He, Feng
    Qi, Kai
    Gong, Pijun
    RESEARCH ON CHEMICAL INTERMEDIATES, 2017, 43 (10) : 5413 - 5432
  • [24] Influence of surface active groups on SO2 resistance of birnessite for low-temperature NH3-SCR
    Fang, Xue
    Liu, Yongjun
    Chen, Lingzhu
    Cheng, Yan
    CHEMICAL ENGINEERING JOURNAL, 2020, 399
  • [25] Low-temperature NH3-SCR of NOx over MnCeOx/TiO2 catalyst: Enhanced activity and SO2 tolerance by modifying TiO2 with Al2O3
    Li, Gang
    Mao, Dongsen
    Chao, Mengxi
    Li, Gehua
    Yu, Jun
    Guo, Xiaoming
    JOURNAL OF RARE EARTHS, 2021, 39 (07) : 805 - 816
  • [26] Effects of atmospheres and precursors on MnOx/TiO2 catalysts for NH3-SCR at low temperature
    Fang De
    He Feng
    Xie Junlin
    Fu Zhengbing
    Chen Junfu
    JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION, 2013, 28 (05): : 888 - 892
  • [27] NH3-SCR Performance of Mn-Fe/TiO2 Catalysts at Low Temperature in the Absence and Presence of Water Vapor
    Lin Zhu
    Zhaoping Zhong
    Han Yang
    Chunhua Wang
    Water, Air, & Soil Pollution, 2016, 227
  • [28] Influences analysis of Sb/Si dopant in TiO2 on NH3-SCR activity and low temperature SO2 resistance of V2O5/TiO2 catalysts
    Su, Chenxin
    Zhu, Lin
    Xu, Mengting
    Zhong, Zhaoping
    Wang, Xiaoyuan
    Gao, Ying
    Zhu, Yuezhao
    APPLIED SURFACE SCIENCE, 2023, 637
  • [29] Comparison of low-temperature catalytic activity and H2O/SO2 resistance of the Ce-Mn/TiO2 NH3-SCR catalysts prepared by the reverse co-precipitation, co-precipitation and impregnation method
    Chen, Cheng
    Xie, Huidong
    He, Peiwen
    Liu, Xiao
    Yang, Chang
    Wang, Na
    Ge, Chengmin
    APPLIED SURFACE SCIENCE, 2022, 571
  • [30] NH3-SCR Performance of Mn-Fe/TiO2 Catalysts at Low Temperature in the Absence and Presence of Water Vapor
    Zhu, Lin
    Zhong, Zhaoping
    Yang, Han
    Wang, Chunhua
    WATER AIR AND SOIL POLLUTION, 2016, 227 (12)
12345