Durability of palladium only three-way automotive emisson control catalysts
The noble metal palladium (Pd) has the capability of simultaneously converting significant quantities of HC, CO and NO/sub x/ in automotive exhaust. Primary interests in using palladium-containing TWC catalysts are overall noble metal cost reduction, reduction in rhodium usage and important performance advantages. Dynamometer aging experiments comparing palladium and platinum/rhodium catalysts were conducted under a variety of operating conditions. Vehicle evaluation of these aged catalysts under U.S. FTP-75, European ECE-15 and Japan 10-Mode conditions indicate that palladium-only TWC technology is vaiable for achieving high levels of three-way control. Vehicle aging studies (25K miles) were also conducted. The results of these studies are discussed in this work.
- OSTI ID:
- 5377851
- Report Number(s):
- CONF-890240-
- Resource Relation:
- Conference: Society of Automotive Engineers international congress and exposition, Detroit, MI (USA), 27 Feb - 3 Mar 1989; Other Information: Technical Paper 890794
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
AUTOMOBILES
POLLUTION CONTROL EQUIPMENT
PALLADIUM
PERFORMANCE
CATALYSTS
AIR POLLUTION CONTROL
CARBON MONOXIDE
EMISSION
EXHAUST GASES
HYDROCARBONS
NITROGEN OXIDES
RHODIUM
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CONTROL
ELEMENTS
EQUIPMENT
FLUIDS
GASEOUS WASTES
GASES
METALS
NITROGEN COMPOUNDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PLATINUM METALS
POLLUTION CONTROL
TRANSITION ELEMENTS
VEHICLES
WASTES
330702* - Emission Control- Carbon Monoxide
330704 - Emission Control- Hydrocarbons
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)