P-We-117 Effect of Lean Operation on the HC Activity of Three-Way Catalysts

Wednesday, June 8, 2011
Ontario Exhibit Hall (Detroit Marriott Hotel at the Renaissance Center )
Joseph Theis, Research and Innovation Center, Ford Motor Company, Dearborn, MI and Robert W. McCabe, Chemical Engineering Department, Research and Innovation Center, Ford Motor Company, MD 3179, Dearborn, MI
The CH4 conversion of a palladium-only catalyst degraded significantly upon extended exposure to lean exhaust until the temperature exceeded 800oC, after which the HC conversion recovered nearly completely.  This recovery is consistent with the decomposition of PdOx to Pdo at 800oC.  Platinum-containing catalysts exhibited much more robust HC activity. 

Extended Abstracts:

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