CATALYTIC REDUCTION OF NITROGEN-OXIDES WITH METHANE IN THE PRESENCE OF EXCESS OXYGEN

被引：429

作者：

LI, YJ ^{[1
]}

ARMOR, JN ^{[1
]}

机构：

[1] AIR PROD & CHEM INC,7201 HAMILTON BLVD,ALLENTOWN,PA 18195

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 1992年 / 1卷 / 04期

关键词：

CH4; EMISSION CONTROL; METHANE; METAL EXCHANGE; NITROGEN OXIDES; NO(X); REDUCTION; ZEOLITES; ZSM-5;

D O I：

10.1016/0926-3373(92)80050-A

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：

We discovered a family of catalysts that can effectively reduce NOx with methane in the presence of excess oxygen. This new catalytic chemistry offers an alternative means for controlling NOx emissions. Complete reduction of nitric oxide was obtained at 400-degrees-C over a Co-ZSM-5 catalyst. The presence of oxygen in the feed greatly enhances the nitric oxide reduction activity on Co-ZSM-5, and the nitric oxide conversion is strongly related to the inlet methane level. On the other hand, Cu-ZSM-5, which is a unique catalyst for the direct nitric oxide decomposition, is a poor catalyst for nitric oxide reduction by methane in the presence of excess of oxygen.

引用

页码：L31 / L40

页数：10

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