Automotive sulfate emissions

Journal Article · Wed Jun 01 04:00:00 EDT 1977 · Automot. Eng. (N.Y.); (United States)

OSTI ID:7215826

A baseline study of the sulfate emissions from a variety of vehicles was carried out. Its major objectives were: (1) to obtain sulfate emission factors for a broad group of different in-use vehicles, in addition to a group of prototype vehicles, using advanced emission control methods; and (2) to determine the effect on sulfate emissions of vehicles meeting increasingly stringent emission standards for HC, CO, and NO/sub x/. Oxidation catalyst cars were found to have significantly higher sulfate emission rates than either current or prototype non-catalyst gasoline-fueled ones when tested over the Congested Freeway Driving Schedule. In general, oxidation catalyst vehicles equipped with air pumps were found to have higher sulfate emission rates than oxidation catalyst cars without air pumps. In general, sulfate emission rates were found to increase with decreasing HC, CO, and NO/sub x/ emission levels, although substantial ranges were found between vehicles at each level of HC/CO/NO/sub x/ control. The three-way catalyst and advanced non-catalyst gasoline-fueled vehicles tested were found to have CFDS sulfate emission rates no higher than those typical of current non-catalyst gasoline-fueled cars. The light duty diesel vehicles tested were found to have CFDS sulfate emission rates significantly higher than those of other non-catalyst vehicles tested.

• OSTI ID: 7215826
• Journal Information: Automot. Eng. (N.Y.); (United States), Journal Name: Automot. Eng. (N.Y.); (United States) Vol. 85:6; ISSN AUEGB
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330703* -- Emission Control-- Sulfur Dioxide
AUTOMOBILES
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CATALYTIC CONVERTERS
CHALCOGENIDES
DIESEL ENGINES
ENGINES
EQUIPMENT
EXHAUST GASES
GASEOUS WASTES
HYDROCARBONS
INTERNAL COMBUSTION ENGINES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE TESTING
POLLUTION CONTROL EQUIPMENT
ROAD TESTS
SULFATES
SULFUR COMPOUNDS
TESTING
VEHICLES
WASTES