The heterogeneous catalytic reduction of NO and N2O mixture by carbon monoxide

被引:15
作者
Gassan-Zedeh, GZ
Seyidbayova, SR
机构
[1] Azerbaijan State Oil Acad, Lab Environm Catalysis, Dept Chem Phys, Baku 370010, Azerbaijan
[2] State Oil Acad Azerbaijan Republ, Sci Res Inst Geotechnol Problems Oil Gas & Chem, Baku 370010, Azerbaijan
关键词
CuCo2O4; simultaneous catalytic reduction of NO; N2O and CO; pulsed gas injection;
D O I
10.1016/S0926-3373(02)00267-9
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Kinetics of the simultaneous reduction N2O and NO by CO on CUCo2O4 has been studied. The reactants are adsorbed onto the coordination-unsaturated cations of the catalyst. The studies showed that the reactions of N2O and CO and of NO and CO occur between the adsorbed reactants on the catalyst surface; the catalyst surface is partially reduced during both these reactions. It was found that NO inhibits the reaction between N2O and CO, because N2O and NO compete for the active surface sites. The adsorption capacity of the catalyst is significantly higher for NO than for N2O and hence NO displaces N(2)Oads from the surface. The inhibition occurs on strongly localized sites and does not affect on the behaviour of the remaining free sites. At such blockage, the N2O reduction rate decreases in direct proportion to the amount of adsorbed NO. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:359 / 367
页数:9
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