By-pass hydrocarbon absorber system for ULEV

Book · Sun Sep 01 04:00:00 EDT 1996

DOI:https://doi.org/10.4271/960343· OSTI ID:277873

Williams, J L; Patil, M D; Hertl, W ^[1]

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1. Corning, Inc., NY (United States)

A by-pass zeolite adsorber system consisting of a first catalyst, a by-pass loop containing the zeolite adsorbers followed by a downstream second catalyst was FTP tested using a US vehicle equipped with a 3.8 L, V6 engine. The system exhibited ULEV emissions performance with hydrocarbon adsorption and regeneration (desorption and oxidation) within the FTP cycle and required only a single diversion valve within the exhaust line. Adsorption takes place during the initial 70 seconds of the FTP cycle. The adsorbers were regenerated with the exhaust gas plus injected air.

• OSTI ID: 277873
• Report Number(s): CONF-960204--; ISBN 1-56091-803-9
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
ADSORBENTS
ADSORPTION
AIR POLLUTION CONTROL
AUTOMOBILES
CARBON MONOXIDE
CATALYSTS
EXHAUST GASES
EXPERIMENTAL DATA
FEDERAL TEST PROCEDURE
GAS INJECTION
HYDROCARBONS
NITROGEN OXIDES
PLATINUM
REGENERATION
RHODIUM
SORPTIVE PROPERTIES
WASTE HEAT UTILIZATION
ZEOLITES