To meet more stringent emission standards, catalytic converters have been moved closer to the engine where higher operating temperatures offer increased performance. For current platinum/rhodium three-way catalyst formulations, the increase in performance more than compensates for the increase in thermal deactivation. The largest advantage is seen for cold-transient FTP performance for HC and CO.
OPERATING TEMPERATURE EFFECTS ON CATALYST PERFORMANCE AND DURABILITY
Sae Technical Papers
International Congress & Exposition ; 1991
1991-02-01
Conference paper
English
Operating temperature effects on catalytic performance and durability
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