In-use catalyst surface area and its relation to HC conversion efficiency and FTP emissions

Conference · Wed Jan 01 00:00:00 EST 1986

OSTI ID:7050092

Donahue, K S; Sabourin, M A; Larson, R E

Surface area data, steady-state hydrocarbon conversion efficiency data, and hydrocarbon emissions results have been determined for catalysts collected by the U.S. Environmental Protection Agency from properly maintained 1981 and 1982 model year vehicles. Catalysts covered in this study were limited to those with three-way-plus-oxidation monolith technologies. Catalyst surface areas were measured using the BET method, conversion efficiencies were measured on an exhaust gas generator, and emissions results were determined using the Urban Driving Schedule of the Federal Test Procedure. Results indicate that correlation of catalyst surface area data with hydrocarbon conversion efficiency data and hydrocarbon emissions results is significant for the sample studied.

• Research Organization: CPSB, US EPA-MVEL
• OSTI ID: 7050092
• Report Number(s): CONF-861041-
• Resource Relation: Conference: Society of Automotive Engineers international fuels and lubricants meeting and technical display, Philadelphia, PA, USA, 6 Oct 1986
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
54 ENVIRONMENTAL SCIENCES
CATALYTIC CONVERTERS
EFFICIENCY
SURFACE AREA
HYDROCARBONS
AIR POLLUTION CONTROL
INTERNAL COMBUSTION ENGINES
CATALYSTS
COMBUSTION PRODUCTS
CORRELATIONS
EMISSION
EXHAUST GASES
MAINTENANCE
MEASURING METHODS
OXIDATION
SAMPLING
US EPA
CHEMICAL REACTIONS
CONTROL
ENGINES
EQUIPMENT
FLUIDS
GASEOUS WASTES
GASES
HEAT ENGINES
NATIONAL ORGANIZATIONS
ORGANIC COMPOUNDS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
SURFACE PROPERTIES
US ORGANIZATIONS
WASTES
330100* - Internal Combustion Engines
330704 - Emission Control- Hydrocarbons
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)