Record Display for the EPA National Library Catalog


Main Title Seasonal impact of blending oxygenated organics with gasoline on motor vehicle tailpipe and evaporative emissions /
Author Stump, Fred D. ; Stump, F. D. ; Knapp, K. T. ; Ray, W. D.
Other Authors
Author Title of a Work
Knapp, Kenneth T.
Ray, William D.
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab.
Publisher U.S. Environmental Protection Agency,
Year Published 1990
Report Number PB91-146571; EPA/600/J-90/303
Stock Number PB91-146571
OCLC Number 733566176
Subjects Chevrolet automobile--Motors--Exhaust gas ; Hydrogen oxygen fuel cells
Additional Subjects Exhaust emissions ; Fugitive emissions ; Air pollution abatement ; Unleaded gasoline ; Gasohol ; Seasonal variations ; Ethanol fuels ; Alternative fuels ; Evaporation ; Performance standards ; Air pollution sampling ; High temperature tests ; Mobile pollutant sources ; Fuel additives ; Blends ; Test chambers ; Experimental design ; Reprints ; Ether/methyl-butyl
Library Call Number Additional Info Location Last
ESAD  EPA 600-J-90-303 Region 10 Library/Seattle,WA 07/05/2011
NTIS  PB91-146571 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation pp. 872-880 : charts ; 28 cm.
The evaporative and exhaust emissions from a 1988 GM Corsica with adaptive learning were measured with 4 fuels at 40F, 75F, and 90F. Test fuels were unleaded summer grade gasoline and a blend of this gasoline containing 8.1% ethanol. A refiner's blend stock and the blend stock containing 16.2 % methyl tertiary butyl ether (MTBE) were also included in the study. Regulated emissions (total hydrocarbons, CO, and NOx), detailed aldehydes, detailed hydrocarbons, ethanol, MTBE, benzene, and 1,3-butadiene were determined. Results indicated that higher levels of regulated emissions were produced at low temperatures. The blended fuels produced almost twice the evaporative hydrocarbon emissions at high temperatures as did the base fuels. 1,3-butadiene emissions decreased slightly with increasing temperatures. Ethanol and MTBE evaporative and exhaust emissions were greater at higher test temperatures. Acetaldehyde emissions from the use of ethanol fuel blend doubled. The MTBE fuel blend appeared to offer the most reduction in total hydrocarbon, carbon monoxide, and oxides of nitrogen for the fuels and temperatures tested.
Includes bibliographical references (p. 880). Caption title. "EPA/600/J-90/303." "PB91-146571."