Assessment of Mexico’s program to use ethanol as transportation fuel: impact of 6% ethanol-blended fuel on emissions of light-duty gasoline vehicles
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Recently, the Mexican government launched a national program encouraging the blending of renewable fuels in engine fuel. To aid the assessment of the environmental consequences of this move, the effect of gasoline fuel additives, ethanol and methyl tert-butyl ether, on the tailpipe and the evaporative emissions of Mexico sold cars was investigated. Regulated exhaust and evaporative emissions, such as carbon monoxide, non-methane hydrocarbons, and nitrogen oxides, and 15 unregulated emissions were measured under various conditions on a set of 2005–2008 model light-duty vehicles selected based on sales statistics for the Mexico City metropolitan area provided by car manufacturers. The selected car brands are also frequent in Canada, the USA, and other parts of the world. This paper provides details and results of the experiment that are essential for evaluation of changes in the emission inventory, originating in the low-blend ethanol addition in light vehicle fuel.
KeywordsEthanol–gasoline blends Mexico Air toxics Emissions Ozone-forming potential
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- AQIRP, Auto/Oil Air Quality Improvement Research Program (1993). Phase I final report. Alpharetta, GA: Auto/Oil Emission Research, Coordinating Research Council.Google Scholar
- AQIRP, Auto/Oil Air Quality Improvement Research Program (1997). Predicted effects of reformulated gasoline T50, T90, sulfur and oxygen content on air quality in years 2000 and 2010, technical bulletin 21. Atlanta, GA: Coordinating Research Council.Google Scholar
- ASTM, American Society for Testing Materials (2008). Standard specification for denatured fuel ethanol for blending with gasolines for use as automotive spark-ignition engine fuel. Philadelphia, PA: ASTM International. ASTM D 4806-08.Google Scholar
- Bjordal, S. D., Goodfellow, C. L., Bennett, P., & Beckwith, P. (1996). Relative effects of catalyst and fuel formulation on gasoline vehicle exhaust emissions. In Proceedings of the international fall fuels and lubricants meeting and exposition, San Antonio, TX, 14–17 October 1996, paper no. 961902. Warrendale, PA: Society of Automotive Engineers.Google Scholar
- CARB, California Air Resource Board (1991). Proposed reactivity adjustment factors for transitional low-emissions vehicles-staff report and technical support document. Sacramento, CA, 27 September 1991.Google Scholar
- Carter, W. P. L. (2007). Development of the Saprc-07 chemical mechanism and updated ozone reactivity scales. Final report to the California Air Resources Board, Contract No. 03-318, Center for Environmental Research and Technology, College of Engineering, University of California Riverside, California 92521.Google Scholar
- CFR, Code of Federal Regulations (1993). Office of the Federal Register, code of federal regulations, title 40, part 86. Washington, DC: US Government Printing Office.Google Scholar
- CFR, Code of Federal Register (2006). January 17 (Vol. 71(10), pp. 2809–2842). Washington, DC: US Government Printing Office.Google Scholar
- Franklin, P. M., Koshland, C. P., Lucas, D., & Sawyer, R. F. (2001). Evaluation of combustion by-products of MTBE as a component of reformulated gasoline. Atmospheric Environment, 42, 861–872.Google Scholar
- GDF, Gobierno del Distrito Federal (2008). Inventario de emisiones de contaminantes criterio de la ZMVM. Secretaría del Medio Ambiente. http://www.sma.df.gob.mx. Accessed 6 April 2009.
- Hochhauser, A. M., Benson, J. D., Burns, V. R., Gorse, R. A., Koehl, W. J., Painter, L. J., et al. (1991). The effect of aromatics, MTBE, olefins, and T90 on mass exhaust emissions from current and older vehicles—the auto/oil air quality improvement research program SAE technical paper no. 912322. Warrendale, PA: Society of Automotive Engineers.Google Scholar
- Korotney, D. J., Rao, V., Lindhjem, C. E., & Sklar, M. S. (1995). Reformulated gasoline effects on exhaust emissions: Phase 3. Continued investigation of the effects of fuel oxygenate content; Oxygenate type, sulfur, olefins, and distillation parameters. SAE technical paper no. 950782. Warrendale, PA: Society of Automotive Engineers.Google Scholar
- Mayotte, S. C., Rao, V., Lindhjem, C. E., & Sklar, M. S. (1994). Reformulated gasoline effects on exhaust emissions: Phase 2. Continued investigation of the effects of fuel oxygenate content, oxygenate type, sulfur, olefins, and distillation parameters. SAE technical paper no. 941974. Warrendale, PA: Society of Automotive Engineers.CrossRefGoogle Scholar
- National Academy of Sciences (1999). Ozone-forming potential of reformulated gasoline. Washington, DC: National Academy Press.Google Scholar
- Orbital, Orbital Engine Company (2008). Evaluating the health impacts of ethanol blend petrol. Final report KW48/17/F.3.3F prepared by the Orbital to Department of the Environment, Water, Heritage and the Arts, CSIRO, Australia.Google Scholar
- Painter, L., & Rutherford, J. A. (1992). Statistical design and analysis methods for the auto/oil air quality research program. In Auto/oil quality improvement research program. SAE technical paper no. 920319. Warrendale, PA: Society of Automotive Engineers.Google Scholar
- Reuter, R. M., Hochhauser, A. M., Benson, J. D., Koehl, W. J., Burns, V. R., Painter, L. J., et al. (1992). Effects of oxygenated fuels on RVP on automotive emissions—auto/oil air quality improvement program. SAE technical paper no. 920326. Warrendale, PA: Society of Automotive Engineers.CrossRefGoogle Scholar
- Schifter, I., Díaz, L., Vera, M., Guzmán, E., & López-Salinas, E. (2003). Impact of sulfur-in-gasoline on motor vehicle emissions in the metropolitan area of Mexico City. Fuel, 82, 1605–1612.Google Scholar
- SE, Secretaría de Energía (2008). Ley de Promoción y Desarrollo de Bioenergéticos. http://www.energía.gob.mx/webSener/ / res /Acerca_de/SENERO1022008.pdf. Accessed 6 April 2009.
- Siegl, W. O., Richert, J. F. O., Jensen, T. E., Schuetzle, D., Swarin, S. J., Loo, J. F., et al. (1993). Improved emissions speciation methodology for phase II of the auto/oil air quality improvement research program—hydrocarbons and oxygenates. SAE technical paper 930142. Warrendale, PA: Society of Automotive Engineers.Google Scholar
- Stephens, R. (1994). Remote sensing data and a potential model of vehicle exhaust emissions. Journal of Air & Waste Management Association, 44, 1284–1292.Google Scholar
- SWRI, Southwest Research Institute (2001). A vehicle fuel tank flushes effectiveness evaluating program. Project 08-31088. Prepared to Coordinating Research Council. http://www.crcao.com/publications/performance/index.html. Accessed 6 July 2009.
- USEPA, United States Environmental Protection Agency (1999). Air and radiation. Fuel sulfur effects on exhaust emissions. EPA-420-01-039.Google Scholar
- USEPA, Environmental Protection Agency (2002). MOBILE6 inspection/maintenance benefits methodology for 1981 through 1995 model year light vehicles. Publication No. EPA420-R-00-014. http://www.epa.gov/otaq/models/mobile6/m6im001.pdf. Accessed 15 June 2009.