The effect of fuel sulfur on the HC, CO and NO{sub x} conversion efficiencies of Pd/Rh, Pd-only and tri-metal catalysts
Conference
·
OSTI ID:214811
- Ford Research Lab., Dearborn, MI (United States)
New emissions regulations require that automotive emissions systems perform at high efficiencies for 100,000 miles. However, fuels containing sulfur can reduce the efficiency of catalyst formulations. Here, dynamometer-based catalyst durability testing and evaluations were used to determine the effects of fuel sulfur levels on Pd-only, Tri-Metal, Pt/Rh and Pd/Rh catalysts, at 4K and 100K of dynamometer aging using 34, 260 or 587 ppmS in the fuel. Results indicate that catalyst performance deteriorated with sulfur contamination. The sensitivity to sulfur level was in the following order: Pt/Pd/Rh<
- OSTI ID:
- 214811
- Report Number(s):
- CONF-950801--
- Country of Publication:
- United States
- Language:
- English
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