Advanced Catalyst Studies of Diesel NOx Reduction for On-Highway Trucks ICT, Company Limited

Format:

Conference/Event

Author/Creator:

Kawanami, M., author.

Conference Name:

International Congress & Exposition (1995-02-27 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1995

Summary:

1. ABSTRACTTo date, several non-SCR catalysts and catalytic systems have been suggested for NOX reduction under oxygen rich (lean) conditions, such as those which exist in diesel engine exhaust gas. However, the performance of such catalysts and catalyst systems is not clear when used on actual diesel engines. This paper reports on experimental results obtained when lean NOx catalysts are applied to diesel engine exhaust. Particularly, the catalysts' NOx performance is examined when secondary hydrocarbons are added as reducing agents directly in the exhaust gas stream. In addition, the effect of different catalyst formulations and secondary hydrocarbon addition on particulate emissions is monitored. Finally, partial system optimization is performed and the applicability of such catalysts and systems to engines operating under the US Heavy Duty Transient Cycle is examined. As a result, simultaneous reduction of about 12% NOx and 25% particulate was achieved over the transient cycle with 2-3% fuel penalty, by the minor optimization of secondary fuel injection pattern and amount, and choice of catalyst

Notes:

Vendor supplied data

Publisher Number:

950154

Access Restriction:

Restricted for use by site license