CSF with low platinum/palladium ratios

Details CSF with low platinum/palladium ratios CSF with low platinum/palladium ratios

2008-02-14

2011-10-18

Nguyen, Cam N. (Department: 1736)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

C422S177000, C502S066000, C502S074000, C502S087000, C502S261000, C502S262000, C502S304000, C502S327000, C502S332000, C502S333000, C502S334000, C502S339000, C502S349000, C502S350000, C502S351000, C502S355000, C502S415000, C502S439000, C502S527180, C502S527190

Reexamination Certificate

active

08038954

ABSTRACT:
An emission treatment system including a catalyzed soot filter comprising a wall flow monolith and a catalyst comprising at least two types of support particles is described. The first support particle contains at least a platinum component, the second support particles contains at least a palladium component. The wall flow monolith may be washcoated with a slurry comprising at least two types of particles without applying a passivation layer to the wall flow monolith.

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