PERFORMANCE OF SOLID ACID TYPE CATALYSTS FOR THE SELECTIVE REDUCTION OF NITROGEN-OXIDES BY HYDROCARBONS AND ALCOHOLS

被引：59

作者：

HAMADA, H ^{[1
]}

KINTAICHI, Y ^{[1
]}

YOSHINARI, T ^{[1
]}

TABATA, M ^{[1
]}

SASAKI, M ^{[1
]}

ITO, T ^{[1
]}

机构：

[1] COSMO RES INST,SATTE,SAITAMA 34001,JAPAN

来源：

CATALYSIS TODAY | 1993年 / 17卷 / 1-2期

关键词：

D O I：

10.1016/0920-5861(93)80014-R

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The performance and characteristics of solid acid type catalysts such as H-ZSM-5 and alumina for the title reaction were investigated. NO reduction on these catalysts was characterized by high efficiency of reducing agent consumed in the presence of oxygen. The catalytic activity was found to be correlated to the solid acidity of the catalysts. Among various reducing agents, methanol was the most efficient for NO reduction at low temperature. It was suggested that the oxidation of NO to NO2 is an important reaction step in the overall NO reduction. Although coexisting water vapor inhibited the reaction, methanol was still effective for alumina-catalyzed reduction at low temperature. Alumina showed excellent activity and durability for the de-NOx of diesel emissions.

引用

页码：111 / 119

页数：9

共 15 条

[1]

DZIEWIECKI Z, 1980, OCHR POWIETRZA, V14, P85

[2]

Fujitani Y., 1988, Ger. Offen., Patent No. [DE 3735151, 3735151]

[3] SELECTIVE REDUCTION OF NITROGEN MONOXIDE WITH PROPANE OVER ALUMINA AND HZSM-5 ZEOLITE - EFFECT OF OXYGEN AND NITROGEN-DIOXIDE INTERMEDIATE [J].