1991-02-01

OPERATING TEMPERATURE EFFECTS ON CATALYST PERFORMANCE AND DURABILITY 910845

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.

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