HC/CO OXIDATION CATALYSTS FOR VEHICLE EXHAUST EMISSION CONTROL

HYDROCARBON AND CARBON MONOXIDE OXIDATION CATALYSTS HAVING GOOD CATALYTIC ACTIVITY, STABILITY, AND IMPROVED PHYSICAL DURABILITY WERE DEVELOPED. BASED ON LABORATORY TESTS, THESE CATALYSTS SHOULD MEET THE INTER-INDUSTRY EMISSION CONTROL PROGRAM HC AND CO EMISSION LEVELS AND THE DURABILITY GOALS IN VEHICLES IN WHICH HC, CO, AND NO(X) GOALS ARE ACHIEVED SIMULTANEOUSLY. DEVELOPMENT OF THESE CATALYSTS HAS BEEN AIDED BY A MATHEMATICAL MODEL OF THE CATALYTIC CONVERTER AND BY UNIQUE EXPERIMENTAL TECHNIQUES. LABORATORY TESTS WERE COMPLEMENTED BY VEHICLE DURABILITY EVALUATIONS WHICH INDICATED THAT AFTER MILEAGE ACCUMULATION CATALYST LOSS TOOK PLACE. IMPROVED CONVERTER DESIGNS AND MORE ATTRITION RESISTANT CATALYSTS HAVE IMPROVED SYSTEM DURABILITY. LAB TESTS PREDICT THAT SOME CATALYSTS WILL MEET GOALS FOR MORE THAN 12,000 MILES WITH LEADED FUEL, AND A LARGER NUMBER WILL MEET GOALS FOR 50,000 MILES WITH LOW LEADED OR UNLEADED FUEL. /HSL/

• Supplemental Notes:
  • REPORT NO SAE-710290
• Corporate Authors:

  Inter-industry Emission Control

  ,    
• Authors:
  • Jagel, K I
  • Dwyer, F G
• Publication Date: 1971

Media Info

• Features: References;
• Pagination: 18 p.

Subject/Index Terms

• TRT Terms: Air quality management; Carbon monoxide; Catalysts; Catalytic converters; Exhaust gases; Gasoline; Hydrocarbons; Mathematical models; Oxidation; Pollutants
• Old TRIS Terms: Emission rates; Exhaust emission control
• Subject Areas: Highways; Safety and Human Factors;

Filing Info

• Accession Number: 00223870
• Record Type: Publication
• Source Agency: Highway Safety Literature
• Files: TRIS
• Created Date: Aug 20 1972 12:00AM