1993-03-01

Catalytic Reduction of Nox with Hydrocarbons Under Lean Diesel Exhaust Gas Conditions 930735

This paper reports first results of research and development work to achieve Nox reduction under lean diesel exhaust gas conditions by using a special coated, zeolite based monolith catalyst. Much attention is paid to the optimization of the activated zeolite system and the influence of group Ib and VIII elements of the periodic system. A major part of the paper deals with the influence of hydrocarbons, carbon monoxide, sulfur dioxide and water on the activity of the catalyst. Another aspect discussed is the influence of the residence time of the exhaust gas components. The thermal stability and the influence of poisoning elements on the catalyst performance is demonstrated by model gas reactor tests on oven and engine aged samples. Finally, first results on the performance of the catalyst system in a vehicle dynometer test are given.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

An Urea Lean NOx Catalyst System for Light Duty Diesel Vehicles

952493

View Details

TECHNICAL PAPER

Development and Evaluation of Catalysts to Remove NOx from Diesel Engine Exhaust Gas

950748

View Details

TECHNICAL PAPER

Catalytic Reduction of NOx in Actual Diesel Engine Exhaust

920091

View Details

X