CATALYTIC REDUCTION OF NITRIC-OXIDE OVER ACTIVATED CARBONS

被引：73

作者：

AHMED, SN ^{[1
]}

BALDWIN, R ^{[1
]}

DERBYSHIRE, F ^{[1
]}

MCENANEY, B ^{[1
]}

STENCEL, J ^{[1
]}

机构：

[1] COLORADO SCH MINES,DEPT CHEM ENGN & PETR REFINING,GOLDEN,CO 80401

来源：

FUEL | 1993年 / 72卷 / 03期

关键词：

CATALYSIS; REDUCTION; CARBON;

D O I：

10.1016/0016-2361(93)90044-3

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：

The reduction of NO to N2 using NH3 as a reductant over activated carbons was investigated using an integral reactor system. The effects of varying the gas-phase and surface oxygen concentrations were studied in detail. Surface oxygen was introduced by treating a coconut shell activated carbon with sulphuric acid at 100-300-degrees-C. The type and concentration of surface oxides were investigated by infrared spectroscopy, linear temperature-programmed desorption of surface oxides. and adsorption of reactant gases. Increasing the gas-phase oxygen concentration increased NO con version significantly. The activity of activated carbon at reaction temperatures > 150-degrees-C was enhanced by sulphuric acid treatment. Sulphuric acid acted as an oxidizing agent and created acidic surface functionalities including carboxyl and carbonyl groups.

引用

页码：287 / 292

页数：6

共 20 条

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