Selective catalytic reduction of NOx by ethanol over combined catalyst Ag/Al2O3-Cu/Al2O3 in excess oxygen

被引：0
|
作者：
Zhang, CB [1 ]
Shi, XY [1 ]
He, H [1 ]
机构：
[1] Chinese Acad Sci, Ecoenvironm Sci Res Ctr, Beijing 100085, Peoples R China
来源：
CHINESE JOURNAL OF CATALYSIS | 2005年 / 26卷 / 08期
关键词：
silver; copper; alumina; supported catalyst; combined catalyst; nitrogen oxide; selective catalytic reduction; ethanol;
D O I：
暂无
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The selective catalytic reduction of NO, by ethanol was studied over Ag/Al2O3 and Cu/Al2O3 catalysts with different metal loadings. The 4 % Ag/Al2O3 and 10 % Cu/Al2O3 showed the highest NO, reduction activity, respectively. The 4 % Ag/Al2O3 catalyst showed excellent NOx to N-2 activity but produced a large amount of CO during the reduction process. The 10% Cu/Al2O3 catalyst was not so active in the reduction of NO, by ethanol, but it was very effective for removing the CO. The combined catalyst formed by direct placing 10 % Cu/Al2O3 after 4 % Ag/Al2O3 showed a similar activity for the NOx reduction and could also remove the CO efficiently. In addition, the concentration of ethanol and aldehyde was also greatly reduced in the effluent gas.
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页码：645 / 649
页数：5
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