Nine catalysts (four monolithic oxidation catalysts, three pelleted oxidation catalysts, three pelleted oxidation catalysts, and two NOX reduction catalysts) was screened on three test fuels. The fuels variables studied were additive, sulfur, and aromatic levels. Particulate emission rates and size distributions were measured for each catalyst/fuel combination. Analyses for sulfate, carbon, bound water, nine metals, organic nitrogen compounds, and organic sulfur compounds were also carried out. Sulfuric acid aerosol was produced along with increased quantities of metal containing particulates, especially of iron and zinc, when the vehicle was equipped with an oxidation catalyst. The particle size distribution from a NOX reduction catalyst-equipped vehicle was similar to that of an unequipped vehicle. /GMRL/

Media Info

  • Pagination: 12 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00145251
  • Record Type: Publication
  • Report/Paper Numbers: SAE 760038
  • Files: TRIS
  • Created Date: May 31 1977 12:00AM