A novel catalytic activity of Ce-Zr-Mn-Ox mixed oxides for low temperature selective catalytic reduction of NO with NH3

被引：0

作者：

Zhang, Qiulin ^{[1
]}

Song, Zhongxian ^{[1
]}

Ning, Ping ^{[1
]}

Gu, Junjie ^{[1
]}

机构：

[1] Kunming Univ Sci & Technol, Fac Environm Sci & Engn, Kunming 650500, Yunnan, Peoples R China

来源：

ENVIRONMENTAL ENGINEERING, PTS 1-4 | 2014年 / 864-867卷

关键词：

Ce-Zr-Mn-O-x catalyst; selective catalytic reduction; hydrothermal synthesis method; SUPERIOR CATALYST; CEO2/TIO2; TIO2; SCR;

D O I：

10.4028/www.scientific.net/AMR.864-867.635

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A Ce-Zr-Mn-O-x (CZM) catalyst has been discovered for selective catalytic reduction of NOx with NH3 in the presence of O-2. In this paper, The catalysts of CZM with 10-50 wt% MnO2 content and Ce-Zr-O-2 (CZ) catalyst are prepared by hydrothermal synthesis method. The catalytic activity of CZM catalysts at different temperatures, different space velocities and different ratios of NH3/NO are studied. The results show that the catalyst of CZM with 40 wt% MnO2 content yields higher NO conversion at low temperature than others. This catalyst shows nearly 90% NOx conversion in a temperature range of 150 degrees C similar to 250 degrees C at a space velocity of 53000 h(-1).

引用

页码：635 / 639

页数：5

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