INFLUENCE OF THE PREPARATION METHOD ON THE V2O5/TIO2/SIO2 CATALYSTS IN SELECTIVE CATALYTIC REDUCTION OF NITRIC-OXIDE WITH AMMONIA

被引：80

作者：

WAUTHOZ, P ^{[1
]}

RUWET, M ^{[1
]}

MACHEJ, T ^{[1
]}

GRANGE, P ^{[1
]}

机构：

[1] CATHOLIC UNIV LOUVAIN, DIV CATALYSE & CHIM MAT, PL CROIX SUD 2-17, B-1348 LOUVAIN, BELGIUM

来源：

APPLIED CATALYSIS | 1991年 / 69卷 / 01期

关键词：

VANADIA TITANIA SILICA; NITRIC OXIDE REDUCTION; AMMONIA; CATALYST PREPARATION (DEPOSITION); DISPERSION;

D O I：

10.1016/S0166-9834(00)83298-4

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：

The method of deposition of TiO2 on SiO2 and the activation procedure of the silica permits the control of the dispersion of both TiO2 and V2O5 on the surface of the catalysts. Activation of SiO2 by acidic treatment followed by deposition of isopropyl orthotitanate in n-heptane by reflux gives a support with titanium oxide close to monolayer coverage. The dispersion of vanadium oxide and its interaction with the support are then enhanced. The catalytic reduction of nitric oxide with ammonia at two different nitric oxide concentrations is evaluated at 693 and 773 K and correlated with the physicochemical properties of the solids.

引用

页码：149 / 167

页数：19

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