Browse Publications Technical Papers 2011-01-1315
2011-04-12

Urea-SCR Catalysts with Improved Low Temperature Activity 2011-01-1315

Urea-SCR systems have become one effective method for meeting the ever tightening NOx emission control regulations for diesel engines. Higher activity of SCR catalysts in the low temperature region is crucial for meeting emission regulations and improving fuel economy. Some of the new catalytic components in the literature have shown good low temperature SCR activity, but they have not been fully confirmed to be durable enough for mobile applications. Fe-zeolite has been widely used in mobile applications due to its wide operating temperature window, but after exposure to large amounts of HCs at low temperatures, it is easily deactivated. We developed new SCR catalysts with improved low temperature activity and improved durability against HC fouling and thermal sintering by combining OSC (oxygen storage component) with Fe-zeolite.

SAE MOBILUS

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

Access SAE MOBILUS »

Members save up to 17% 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

Use of High Cell Density Monolithic Catalysts for Automotive Exhaust Emission Control

820483

View Details

TECHNICAL PAPER

Development of Thermally Durable Cu/SCR Catalysts

2009-01-0899

View Details

TECHNICAL PAPER

An Experimental Comparison of the Uniformity Index for Two Dual Stage Plate Mixers in a SCR system

2015-26-0109

View Details

X