Pr-doped Modified Fe-Mn/TiO2 Catalysts with a High Activity and SO2 Tolerance for NH3-SCR at Low-Temperature

被引：29
作者：
Hou, Xinxin [1 ]
Chen, Hongping [1 ,2 ]
Liang, Yinghua [1 ,2 ]
Yang, Xu [1 ]
Wei, Yonglin [1 ]
机构：
[1] North China Univ Sci & Technol, Coll Chem Engn, Tangshan 063210, Peoples R China
[2] Coal Chem Engn Technol Res Ctr Hebei Prov, Tangshan 063210, Peoples R China
来源：
CATALYSIS LETTERS | 2020年 / 150卷 / 04期
关键词：
Fe-Mn; TiO2; catalyst; NH3-SCR; Low temperature; Pr modification; SO2; resistance; NO REMOVAL; REDUCTION; NH3; SCR; PERFORMANCE; RESISTANCE; MECHANISM; OXIDE; CERIA; MNOX/TIO2;
D O I：
10.1007/s10562-019-03019-8
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Pr-modified Fe-Mn/TiO2 (x Pr) catalysts with high activity and excellent SO2 resistance were prepared and used for the selective catalytic reduction of NO with NH3 (NH3-SCR) at low-temperatures. Pr can inhibit FeOx and MnOx crystallization and stabilize the high valence states of Fe and Mn, maintaining the catalyst's high activity and stability at low temperatures. Doping with Pr diminished the ammonium sulfate deposition and alleviated the sulfation, improving the catalysts' sulfur resistance. Graphic
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页码：1041 / 1048
页数：8
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