Improvement of Heat Resistance for Lean NOx Catalyst Power and Industrial Systems R and D Laboratory, Hitachi Limited

Format:

Conference/Event

Author/Creator:

Iizuka, Hidehiro, author.

Conference Name:

SAE 2004 World Congress & Exhibition (2004-03-08 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2004

Summary:

When the alkali metal-supported catalyst was treated at 830°C, the NOx conversion decreased because the alkali metals in the catalyst layer gradually moved to the cordierite honeycomb layer and reacted with the cordierite elements. This phenomena decreased to be added the basic metal oxide (α) in the catalyst layer. The improved catalyst with α 2 showed higher performance than the conventional catalyst in the model gas test. Moreover, the emission values of NOx, HC, and CO were 50% or less than Japanese domestic regulation values even after 830°C60h heat treatment in a vehicle test

Notes:

Vendor supplied data

Publisher Number:

2004-01-1495

Access Restriction:

Restricted for use by site license