Development of New Selective NOx Reduction Catalyst for Gasoline Leanburn Engines ICT, Company, Limited

Format:

Conference/Event

Author/Creator:

Hori, Masao, author.

Conference Name:

International Fuels and Lubricants Meeting and Exposition (1997-10-13 : Tulsa, Oklahoma, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1997

Summary:

Practical application of leanburn gasoline engines for passenger cars has been increasing in recent years. The leanburn gasoline engine is operated under high air fuel (A/F) ratio to improve fuel economy. However, reduction of NOx from the exhaust under oxygen-rich condition is very difficult to achieve. The Three Way Catalyst (TWC) designed for conventional gasoline engines cannot be applied to the leanburn gasoline engine because of low NOx conversion under lean conditions. To achieve better fuel economy and lower emissions, a breakthrough in NOx control technology for oxygen-rich conditions is needed.To address this need, a new type of catalyst technology using Iridium was developed. This new catalyst can constantly reduce NOx from exhaust under lean conditions using hydrocarbons as reducing agents. This is accomplished without formation of N2O. In addition, the newly developed catalyst has a tolerance for sulfur poisoning and exhibits reasonable heat stability. Experimental results regarding this new catalyst are reported in this paper

Notes:

Vendor supplied data

Publisher Number:

972850

Access Restriction:

Restricted for use by site license