Characterization of emissions from vehicles using methanol and methanol-gasoline blended fuels

Technical Report · Tue Jan 01 04:00:00 EST 1985

OSTI ID:5898745

Gabele, P A; Baugh, J O; Black, F; Snow, R

Exhaust and evaporative emissions were examined from vehicles fueled with methanol or a gasoline-methanol blend. Regulated automobile pollutants, as well as detailed hydrocarbons, methanol, and aldehydes were measured, and exhaust emission trends were obtained for vehicle operation over five different driving cycles. Results indicated that use of the blended fuel does not generally have any significant effect on base-line exhaust emission rates of regulated pollutants; however, emission rates of aldehydes increased during the Federal Test Procedure. Aldehyde emissions from the methanol-fueled car were roughly an order of magnitude higher than those resulting from blended fuel usage. The hydrocarbon composition of evaporative emissions with the blended fuel was similar to that with the base-line fuel except when canister breakthrough occurred. Evaporative emissions during breakthrough were chiefly comprised of N-butane.

• Research Organization: Environmental Protection Agency, Research Triangle Park, NC (USA). Atmospheric Sciences Research Lab.
• OSTI ID: 5898745
• Report Number(s): PB-86-156890/XAB; EPA/600/J-85/255
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330700* -- Advanced Propulsion Systems-- Emission Control
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ALCOHOL FUELS
ALDEHYDES
EXHAUST GASES
FEDERAL TEST PROCEDURE
FLUIDS
FUELS
GASEOUS WASTES
GASES
GASOHOL
GASOLINE
HYDROCARBONS
LIQUID FUELS
METHANOL FUELS
ORGANIC COMPOUNDS
PETROLEUM PRODUCTS
POLLUTANTS
SYNTHETIC FUELS
VEHICLES
WASTES