Mechanism of selective catalytic reduction of NO with NH3 over coal-based activated coke

被引：0

作者：

Xie, Wei ^{[1
]}

Sun, Zhongchao ^{[1
]}

Xiong, Yinwu ^{[1
]}

Li, Lanting ^{[1
]}

Wu, Tao ^{[1
]}

Liang, Daming ^{[1
]}

机构：

[1] China Coal Res Inst, Beijing Inst Coal Chem, Beijing State Key Lab Coal Min & Environm Protect, Beijing Beijing Key Lab Coal Based Carbon Mat, Beijing, Peoples R China

来源：

2013 INTERNATIONAL CONFERENCE ON MATERIALS FOR RENEWABLE ENERGY AND ENVIRONMENT (ICMREE), VOLS 1-3 | 2013年

关键词：

Activated coke; SCR; Surface chemical properties; Mechanism; SURFACE-CHEMISTRY; CARBON CATALYSTS; OXIDES; H2SO4; HNO3; SCR;

D O I：

暂无

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

In order to elucidate the mechanism of selective catalytic reduction of NO with NH3 over activated coke and clarity of the effects of its surface chemical of activated coke. Five commercial coal-based activated cokes for NO reduction with NH3 were examined in a fixed-bed quartz micro reactor at 150 degrees C. X-ray photoelectron spectroscopy (XPS) and acid-base titration were used to characterize the surface chemical properties of the samples. The results showed that the NO conversion over the activated cokes has been increased with the amounts of surface acidic sites and oxygen content. A correlation between catalytic activity and NH3 adsorption capacity could be observed. The adsorption of NH3 on the acidic sites of the activated coke seemed to play an important role in catalytic selective reduction of NO with NH3.

引用

页码：639 / 641

页数：3

共 12 条

[1]

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[2] Effect of surface chemistry on sorption of water and methanol on activated carbons [J].