Browse Publications Technical Papers 2000-01-0654
2000-03-06

Experimental and Modeling Investigation of Catalyzed Hydrocarbon Trap Performance 2000-01-0654

The majority of unburned hydrocarbon emissions from vehicles occur during cold start operation of the vehicle before the catalyst system has heated to the point where it has reached high operating efficiency. One promising technology to reduce cold start hydrocarbon emissions is the catalyzed hydrocarbon trap. This paper presents the results of a vehicle, laboratory, and modeling study of the performance of this relatively new type of catalyst. A procedure to evaluate trap performance in the laboratory is presented that correlates well with trap performance on a vehicle. Additionally, a mathematical model of the catalyzed hydrocarbon trap is presented. This model utilizes laboratory determined parameters to calibrate the model for specific catalyzed hydrocarbon trap formulations to simulate the performance of that formulation on a vehicle. Data is presented that shows the model agrees well with vehicle data during the bag 1 portion of the Federal Test Procedure. In addition, modeling results are shown that predict the performance of a catalyzed hydrocarbon trap on a vehicle when such parameters as the trap size, position, substrate geometry, and trap composition are varied.

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

Hydrocarbon Trap Technology for the Reduction of Cold-Start Hydrocarbon Emissions

970741

View Details

TECHNICAL PAPER

Evaluation of In-Line Adsorber Technology

970267

View Details

TECHNICAL PAPER

Modeling Water Condensation in Exhaust A/T Devices

2010-01-0885

View Details

X