Browse Publications Technical Papers 2007-01-1924
2007-07-23

A Study of Engine Oil Composition Effects on Zeolite-type SCR Catalyst Durability 2007-01-1924

The authors evaluated the durability of current zeolite-type SCR (Selective Catalytic Reduction) catalyst system in terms of poisoning from engine oil components, such as phosphorus, sulfur, calcium and zinc. The engine oil types used included typical CF-4, a sulfur-free type and an ultra-high SAPS (Sulfated Ash, Phosphorus and Sulfur) type, etc. After 500 hours' engine operation with these oils, the NOx conversion rates were measured and compared. The test revealed no serious deactivation of the catalysts, but we observed some trends concerning the poisoning and its effects on the catalysts' activity. We also analyzed the contaminants on the catalysts and studied their effects.

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:
JOURNAL ARTICLE

Deactivation of Cu/Zeolite SCR Catalyst Due To Reductive Hydrothermal Aging

2008-01-1021

View Details

TECHNICAL PAPER

Development of a Numerical Model to Predict the Impact of Phosphorus on Flow through Aftertreatment Components

2012-01-1299

View Details

TECHNICAL PAPER

Cu/Zeolite SCR on High Porosity Filters: Laboratory and Engine Performance Evaluations

2009-01-0897

View Details

X