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THE FORMATION AND CONTROL OF SULFURIC ACID EMISSIONS OVER AUTOMOTIVE CATALYSTS
ISSN: 0148-7191, e-ISSN: 2688-3627
Published February 01, 1977 by SAE International in United States
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In order to find a way to minimize sulfuric acid formation while maintaining high HC and CO conversion, the effect of temperature, air-fuel ratio, space velocity and catalyst metal composition on SO2 conversion was studied. Both pelleted and monolithic catalysts were investigated using an engine dynamometer and a small diameter dilution tunnel. The effect of engine operating conditions on SO2 conversion was clarified and an advantageous shape for the catalytic converter was found. Thirteen pelleted and four monolithic catalysts were tested with rhodium showing a remarkable effect on HC conversion selectivity.
CitationTokura, N., Saito, T., Hasegawa, Y., and Katoh, K., "THE FORMATION AND CONTROL OF SULFURIC ACID EMISSIONS OVER AUTOMOTIVE CATALYSTS," SAE Technical Paper 770198, 1977, https://doi.org/10.4271/770198.
- Hammerle R. H. Truex T. J. “The Kinetics of SO 2 Oxidation for Various Catalyst Compositions” SAE Paper 760090
- Bradow Ronald L. Moran John B. “Sulfate Emissions from Catalyst Cars A Review” SAE Paper 750090
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- U. S. EPA “Automobile Sulfuric Acid Emission Control - The Development Status as of December 1975”