Browse Publications Technical Papers 2009-01-0275
2009-04-20

Evaluation of Spatially Resolved Performance of NOx Adsorber Catalysts 2009-01-0275

A novel laboratory methodology has been developed and applied to evaluate performance of NOx Adsorber catalysts, based on the detailed analysis of micro-core samples obtained from various locations in a full-size catalyst. The technique includes a protocol for evaluating various aspects of NOx performance, as well as direct measurements of the amount of sulfur on the catalyst.
This method was used to determine the NOx performance and distribution of sulfur loading on several engine aged catalysts. It showed the ability to differentiate poor NOx performance due to insufficient desulfation from that due to thermal degradation. This method further quantifies different forms of sulfur that are present on the catalyst. These forms of sulfur are distinguished by the temperature at which they are removed. In addition, the aspects of sulfur behavior that are important to this technique are discussed.

SAE MOBILUS

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

Access SAE MOBILUS »

Preview Document Add to Cart
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

NOx Adsorber Desulfurization Under Conditions Compatible With Diesel Applications

2001-01-0508

View Details

TECHNICAL PAPER

Influence of Both Catalyst Geometry and Fuel Sulfur Content on NOX Adsorber Poisoning

2001-01-1934

View Details

TECHNICAL PAPER

On Developing Advanced Catalysts Systems to Meet China New Regulations

2019-01-0978

View Details

X