PERFORMANCE AND DURABILITY OF PT-MFI ZEOLITE CATALYST FOR SELECTIVE REDUCTION OF NITROGEN MONOXIDE IN ACTUAL DIESEL-ENGINE EXHAUST

被引：76

作者：

IWAMOTO, M ^{[1
]}

YAHIRO, H ^{[1
]}

SHIN, HK ^{[1
]}

WATANABE, M ^{[1
]}

GUO, JW ^{[1
]}

KONNO, M ^{[1
]}

CHIKAHISA, T ^{[1
]}

MURAYAMA, T ^{[1
]}

机构：

[1] ISHIKAWAJIMA HARIMA HEAVY IND CO LTD,KOTO KU,TOKYO 135,JAPAN

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 1994年 / 5卷 / 1-2期

关键词：

DIESEL ENGINE EXHAUST; MFI ZEOLITE; NITROGEN MONOXIDE; PLATINUM; SELECTIVE REDUCTION; ZEOLITES;

D O I：

10.1016/0926-3373(94)00047-6

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：

Selective catalytic reduction of nitrogen monoxide (NO) by hydrocarbon in an oxidizing atmosphere has been studied over platinum-MFI zeolite (Pt-MFI) in synthesized or actual diesel engine exhaust gases. The activity of Pt-MFI in the synthesized gas, containing 10% water, changed in the early stage of the use, leveled off after 150-200 h, and remained constant for more than 800 h. The Pt-MFI catalyst also showed stable activity at 423-773 K and 10 000-150 000 h(-1) (gas hourly space velocity) in actual engine exhaust with light oil as a fuel. The degree of nitrogen monoxide reduction increased linearly upon addition of ethylene into the exhaust gas.

引用

页码：L1 / L6

页数：6

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