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Reformulated Gasoline Effects on Exhaust Emissions: Phase I: Initial Investigation of Oxygenate, Volatility, Distillation and Sulfur Effects
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Abstract
This study was the first of three EPA studies to investigate the effect of gasoline fuel parameters on hydrocarbon, nonmethane hydrocarbon, nitrogen oxides, benzene, formaldehyde, and acetaldehyde exhaust emissions of 1990 model year or equivalent vehicles. The fuel parameters tested in this program were oxygen concentration, Reid Vapor Pressure (RVP), ninety percent evaporative distillation temperature (T90), and sulfur concentration. Sulfur concentration was found to have the greatest effect on hydrocarbon and nitrogen oxide emissions. Increasing oxygen concentration and RVP reduction was found to reduce hydrocarbon emission more for high-emitting than normal-emitting vehicles. Oxygenate concentration was found to have a significant effect on aldehyde emissions.
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Mayotte, S., Lindhjem, C., Rao, V., and Sklar, M., "Reformulated Gasoline Effects on Exhaust Emissions: Phase I: Initial Investigation of Oxygenate, Volatility, Distillation and Sulfur Effects," SAE Technical Paper 941973, 1994, https://doi.org/10.4271/941973.Also In
References
- AQIRP 1990 ‘Technical Bulletin No. 1; Initial Mass Exhaust Emission Results from Reformulated Gasolines’ Coordinating Research Council Atlanta, GA
- AQIRP 1991 ‘Technical Bulletin No. 2; Effects of Fuel Sulfur Levels on Mass Exhaust Emissions’ Coordinating Research Council Atlanta, GA
- AQIRP 1991 Technical Bulletin No. 6; Emissions Results of Oxygenated Gasolines and Changes in RVP’ Coordinating Research Council Atlanta, GA
- AQIRP 1992 Technical Bulletin No. 11; A Study of Fuel Effects on Emissions from High Emitting Vehicles’ Coordinating Research Council Atlanta, GA
- EPA 1994 “Regulation of Fuels and Fuel Additives; Standards for Reformulated and Conventional Gasoline; Final Rule” Federal Register 59 32 February 16 7716 7878
- Knepper, J.C. Koehl, W.J. Benson, J.D. Burns, V.R. Gorse, R.J. Jr. Hochhauser, A.M. Leppard, W.R. Rapp, L.A. Reuter, R.M. 1993 Fuel Effects in Auto/Oil High Emitting Vehicles’ SAE- 930137
- Kopp, V. 1992 Correspondence to C.E. Lindhjem June 26
- Mayotte, S.C. Rao, V. Lindhjem, C.E. Sklar, M.S. 1994 ‘Reformulated Gasoline Effects on Exhaust Emissions: Phase II; Continued Investigation of Fuel Oxygen Content, Oxygenate Type, Volatility, Sulfur, Olefins, and Distillation Parameter Effects’ SAE