Application of In-Line Hydrocarbon Adsorber Systems Daimler-Benz AG

Format:

Conference/Event

Author/Creator:

Abthoff, Joerg, author.

Conference Name:

International Congress & Exposition (1998-02-23 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1998

Summary:

An adsorber system for reducing cold start hydrocarbon (HC) emissions has been developed combining existing catalyst technologies with a zeolite-based HC adsorber. The series flow in-line concept offers a passive and simplified alternative to other technologies by incorporating one additional adsorber substrate into existing converters without any additional valving, purging lines, or special substrates.This contribution describes the current development status of hydrocarbon adsorber aftertreatment technologies. We report results obtained with a variety of adsorber, start-up, and underfloor catalyst system combinations. In each case, it was possible to achieve HC emission levels in compliance with the ULEV standards, and in the best cases, demonstrating HC emissions substantially below the legislated standard. In contrast to electrically heated catalyst (EHC) approaches, HC adsorbers allow for the ready incorporation of a passive element into an existing exhaust system without the need for ancillary EHC hardware and its associated costs

Notes:

Vendor supplied data

Publisher Number:

980422

Access Restriction:

Restricted for use by site license