SULFURIC ACID EMISSIONS FROM AN OXIDATION-CATALYST EQUIPPED VEHICLE

A 1973 Ford Torino with 1975 emission controls including monolithic noble metal catalysts was used to examine the effects of vehicle operating variables on sulfuric acid exhaust emissions. At 60 mph, 36 percent of the fuel sulfur was emitted as H2SO4. On the 1975 FTP driving cycle, the figure was 10 to 24 percent depending on prior operating history, with small differences between cold and hot-start and between transient and stabilized phases of the cycle. Sulfur storage in the converter was minor. The emitted H2SO4 was composed primarily of droplets smaller than 0.3 without catalysts, emission of H2SO4 is less than 1 percent of the fuel sulfur. /GMRL/

Media Info

  • Pagination: 10 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00098902
  • Record Type: Publication
  • Report/Paper Numbers: SAE #750411
  • Files: TRIS
  • Created Date: Sep 30 1975 12:00AM