Browse Publications Technical Papers 2005-01-1103
2005-04-11

Activated Carbon Coated Polymeric Foam for Hydrocarbon Vapor Adsorption 2005-01-1103

The Environmental Protection Agency (EPA) has enacted increasingly stringent limits on hydrocarbon emissions for vehicles used in the United States. The Partial Zero Emissions Vehicle (PZEV) requires a lower level of emissions than previously accepted. OEMs, Tier 1, and various suppliers have been working to cost effectively meet this challenge.
Activated Carbon (AC) in the form of pellets, granules, or as part of an extruded ceramic has been used in emission control systems. Wood based activated carbon, treated with phosphoric acid, seems to offer the optimal pore structure, adsorption, and desorption characteristics required.
This paper discusses materials used to meet the challenges of the PZEV requirement, highlights the differences between two types of hydrocarbon adsorbing materials, and offers a modified test method useful for evaluating filter medium performance at the lower hydrocarbon concentrations associated with PZEV emission levels.

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 16% 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

Requirements Setting, Optimization and “Best Fit” Application of AIS Hydrocarbon Adsorption Devices for Engine Evaporative Emissions Breathing Loss Control

2005-01-1104

View Details

TECHNICAL PAPER

A Study of a Gasoline-Fueled Near-Zero-Emission Vehicle Using an Improved Emission Measurement System

982555

View Details

TECHNICAL PAPER

Effects of California Phase 2 Reformulated Gasoline Specifications on Exhaust Emission Reduction

922179

View Details

X