1993-03-01

Off-Highway Exhaust Gas After-Treatment:Combining Urea-SCR, Oxidation Catalysis and Traps 930363

Primary measures, to reduce the NOx emissions from diesel engines, penalize the fuel consumption and aggravate the CO2 problem. Instead, an after-treatment system is proposed that permits optimum combustion and yet reduces the NOx by more than 95%. Such installations are in operation for more than five years. Successful deployment on a short-haul ferry, subject to highly cyclic operation, began in Spring 1992. The chief features are high space-velocity (25,000 1/h), urea as non-toxic reactant and rapid transient response. The attained results counter the misgivings about the SCR catalysis. Development aims at further halving the size thus facilitating service in off-highway vehicles such as locomotives and earth-movers. The integration of particulate traps using knitted micro-fibers is under development.

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 Active Regeneration Aid as a Key Element for Safe Particulate Trap Use

2001-01-3199

View Details

TECHNICAL PAPER

Development of a Urea DeNOx Catalyst Concept for European Ultra-Low Emission Heavy-Duty Diesel Engines

952652

View Details

TECHNICAL PAPER

NOx Reduction Strategies for DI Diesel Engines

920470

View Details

X