Advanced catalyst for NOx reduction using hydrocarbons from lean-burning gas engine

被引：23

作者：

Okada, O ^{[1
]}

Tabata, T ^{[1
]}

Kokitsu, M ^{[1
]}

Ohtsuka, H ^{[1
]}

Sabatino, LMF ^{[1
]}

Bellussi, G ^{[1
]}

机构：

[1] ENIRICERCHE SPA,I-20097 SAN DONATO MILANE,MILAN,ITALY

来源：

APPLIED SURFACE SCIENCE | 1997年 / 121卷

关键词：

selective catalytic reduction; NOx reduction; propane; cobalt; zeolite;

D O I：

10.1016/S0169-4332(97)00304-8

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：

For a catalytic NOx reduction process for natural gas-fueled lean-burning engines; selective catalytic reduction of NOx by propane was studied on metal ion-exchanged zeolite catalysts. A comparative study on Cu-and Co-ZSM-5 showed the superiority of Go-bared catalysts for C3H8-SCR in the presence of water vapor. Investigation into various Go-zeolite catalysts showed that Go-Beta has superior activity and selectivity for NOx reduction. Durability tests of the catalyst in a model gas simulating gas engine exhaust showed that the activity of Go-Beta is sufficient even in the presence of SOx after 5000 h of operation, whereas Co-Mordenite and Co-ZSM-5 lost their activity in several hundred hours of operation, (C) 1997 Elsevier Science B.V.

引用

页码：267 / 272

页数：6

共 11 条

[1]

HAMADA H, 1991, SHOKUBAI, V33, P59

[2] NOVEL CATALYTIC DECOMPOSITION AND REDUCTION OF NO [J].