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Sulfide Emissions from Catalyst-Equipped Cars
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English
Abstract
An on-stream gas chromatographic technique was developed to analyze grab samples of diluted and undiluted vehicle exhaust for the reduced sulfur compounds which cause rotten-egg odors. This method was used to conduct a brief survey of two cars with modified carburetors, four customer cars with odor problems, and five experimental three-way catalyst cars. The cars were tested on a chassis dynamometer using a driving cycle developed for this study. Hydrogen sulfide and carbonyl sulfide were frequently measured. Ethyl mercaptan and fuel sulfur components were occasionally detected. The sulfides were emitted most often when the catalyst was hot, the space velocity was low and the carburetion was rich. The maximum H2S or COS concentration measured in undiluted exhaust was <10 ppm. Therefore, these emissions pose no known health problem, but can be an odor problem.
Authors
Citation
Cadle, S. and Mulawa, P., "Sulfide Emissions from Catalyst-Equipped Cars," SAE Technical Paper 780200, 1978, https://doi.org/10.4271/780200.Also In
References
- Leonardos G. Kendall D. Barnard N. J. Air. Pollut. Contr. Assoc. 19 91 1969
- Warner P. “Analysis of Air Pollutants.” New York John Wiley and Sons 1976 298 300
- Barnes G. Private Communication GM Research Laboratories Warren, Michigan 1973
- Barnes G. Summers J. “Hydrogen Sulfide Formation Over Automotive Oxidation Catalysts.” Paper 750093 SAE Automotive Engineering Conference February 1975
- Sugiyama T. Suzuki Y. Takeuchi T. J. of Chromatogr. Sci. 80 61 1973
- Pescar R. E. Hartman C. H. J. of Chromatogr. Sci. 11 492 1973
- Peyton T. O. Steele R. V. Mabey W. R. “Carbon Disulfide, Carbonyl Sulfide: Literature Review and Environmental Assessment.” Stanford Research Institute January 1976