This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Formaldehyde Emission Control Technology for Methanol-Fueled Vehicles
Annotation ability available
Sector:
Language:
English
Abstract
The use of methanol as a “clean fuel” appears to be a viable approach to reduce air pollution. However, concern has been expressed about potentially high formaldehyde emissions from stoichiometrically operated light-duty vehicles. This paper presents results from Task 1 of an emission test program conducted for the California Air Resources Board (CARB) and the South Coast Air Quality Management District (SCAQMD) to identify advanced catalyst technology to reduce formaldehyde emissions without compromising regulated emission control.
A hybrid M90 test vehicle was used to evaluate 18 unaged catalyst systems for formaldehyde, methanol, gasoline derived hydrocarbon, organic material hydrocarbon equivalent mass, carbon monoxide, and oxides of nitrogen emissions. The vehicle was operated on a chassis dynamometer using the FTP driving cycle. Catalyst systems evaluated included electrically-heated, manifold, close-coupled, and underbody catalysts, as well as combinations of the above. Three catalyst systems were selected for further evaluation on current technology vehicles (both dedicated methanol- and flexible-fueled). Selections were made to achieve a variety of emission control systems that were effective in formaldehyde and regulated emission control. All three systems selected for additional evaluations gave average formaldehyde emission levels of less than 8 mg/mi.
Authors
Topic
Citation
Santoro, S., Leonard, J., Newkirk, M., Smith, L. et al., "Formaldehyde Emission Control Technology for Methanol-Fueled Vehicles," SAE Technical Paper 902118, 1990, https://doi.org/10.4271/902118.Also In
New Directions and Developments in Automotive Emission Control
Number: SP-0839; Published: 1990-10-01
Number: SP-0839; Published: 1990-10-01
References
- “California Methanol Assessment Volume 1: Summary Report,” Jet Propulsion Laboratory, JPL Publication 83-18 1 March 1983
- Whitten, G.Z. Hogo, F. “Impact of Methanol on Smog: A Preliminary Estimate,” Final Report Systems Applications, Inc. ARCO Petroleum Products Company February 1983
- Russell, A. Harris, J. Milford, J St. Pierre, D. “Quantitative Estimate of the Air Quality Impacts of Methanol Fuel Use,” Carnegie Mellon University California Air Resources Board and the South Coast Air Quality Management District April 1989
- Sigsby, J.E. et al. “Volatile Emission Compounds from 46 In-Use Passenger Cars,” Environmental Science and Technology 21 5 1987
- Code of Federal Regulations
- Smith, L.R. “Characterization of Exhaust Emissions from Alcohol-Fueled Vehicles,” Final Report Coordinating Research Council, Inc. May 1985
- Smith, L.R. Urban, C.M. “Characterization of Exhaust Emissions from Methanol- and Gasoline-Fueled Automobiles,” Report EPA 460/3-82-004 August 1982
- Smith, L.R. et al. “Analytical Procedures of Characterizing Unregulated Pollutant Emissions from Vehicles using Middle-Distillate Fuels,” Report EPA 600/2-80-068 April 1980
- Dietzmann, H.E. et al “Analytical Procedures for Characterizing Unregulated Pollutant Emissions from Motor Vehicles,” Report EPA 600/2-79-017 February 1979
- Lipair, F. Swarin, S.J. “Determination of Formaldehyde and Other Aldehydes in Automobile Exhaust with an Improved 2,4-Dinitrophenylhydrazine Method,” Journal of Chromatography 247 1982 297 306