NOx reduction by CO over ASC catalysts in a simulated rotary reactor: effect of CO2, H2O and SO2

被引：20

作者：

Sun, Peiliang ^{[1
,2
]}

Cheng, Xingxing ^{[1
,2
]}

Lai, Yanhua ^{[2
]}

Wang, Zhiqiang ^{[1
,2
]}

Ma, Chunyuan ^{[1
,2
]}

Chang, Jingcai ^{[1
,2
]}

机构：

[1] Shandong Univ, Sch Energy & Power Engn, Natl Engn Lab Coal Red Pollutant Emiss Reduct, Jinan 250061, Shandong, Peoples R China

[2] Shandong Univ, Sch Energy & Power Engn, Jinan 250061, Shandong, Peoples R China

来源：

RSC ADVANCES | 2018年 / 8卷 / 64期

关键词：

BINARY METAL-OXIDES; ACTIVATED SEMI-COKE; ADSORPTION; CARBON; NH3; DRIFTS; PERFORMANCE; MECHANISM; OXIDATION; HYDROGEN;

D O I：

10.1039/c8ra07658h

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The influence of CO2, H2O and SO2 on the NO reduction by CO over Fe/Co activated semi-coke catalyst was investigated in a simulated rotary reactor. The results showed that, in the simulated rotary reactor, the influence of CO2 and H2O on the NO adsorption was significant at low temperatures, and the inhibition became weak when increasing the temperature. However, the NO adsorption efficiency could not be improved by increasing temperature after catalyst sulfur poisoning. The heavily inhibited NO adsorption process, which was due to the competitive adsorption and formation of the sulfate, resulted in a low NO reduction efficiency in the presence of CO2, H2O or SO2. The in situ DRIFT study showed that the dominant effect of CO2, H2O and SO2 on the NO adsorption was the inhibition of the free nitrate ions formation. In addition, the introduction of CO2, H2O and SO2 could not change the route of NO reduction, but just reduced the degree of the NO + CO reduction.

引用

页码：36604 / 36615

页数：12

共 53 条

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