Browse Publications Technical Papers 2001-24-0066
2001-09-23

Abatement of automotive cold start hydrocarbon emissions 2001-24-0066

This paper reports the results of a study on adsorption properties of zeolitic materials with different pore opening and Si/Al ratio towards engine cold start hydrocarbon emissions. Some selected zeolites were deposited on cordierite honeycomb support by a novel technique. Dynamic adsorption tests were performed at the engine exhaust on both commercial and specifically synthetised powder samples and on deposited zeolites. In order to obtain indications on selectivity properties of the different materials, equilibrium isotherm curves and dynamic tests were carried out for three model hydrocarbons (ethylene, isobutene, toluene), considered as representative of the most concentrated compounds detectable at engine start-up. The aim was to understand how the physico-chemical characteristics of the adsorbent material can affect its trapping capability in adsorbing all the types of hydrocarbons present in the engine exhaust. The final goal of the research is the realisation of a prototype of hydrocarbon trap for abatement of cold start hydrocarbon emissions.

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.

Due to current capacity constraints, printed versions of our publications - including standards, technical papers, EDGE Reports, scholarly journal articles, books, and paint chips - may experience shipping delays of up to four to six weeks. We apologize for any inconvenience.
We also recommend:
TECHNICAL PAPER

Experimental and Modeling Investigation of Catalyzed Hydrocarbon Trap Performance

2000-01-0654

View Details

TECHNICAL PAPER

Vehicle Comparison of Advanced Three-Way Catalysts and Hydrocarbon Trap Catalysts

2002-01-0730

View Details

TECHNICAL PAPER

A Catalyzed Hydrocarbon Trap Using Metal-impregnated Zeolite for SULEV systems

2003-01-0815

View Details

X