Catalyst-supported particulate filter

Details Catalyst-supported particulate filter Catalyst-supported particulate filter

2008-07-09

2011-11-08

Nguyen, Cam N. (Department: 1736)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

C422S180000, C502S302000, C502S303000, C502S304000, C502S327000, C502S332000, C502S333000, C502S334000, C502S339000, C502S355000, C502S415000, C502S439000, C502S527190

Reexamination Certificate

active

08052936

ABSTRACT:
In a particulate filter, a catalyst layer containing Pt-carried activated alumina particles, CeZr-based mixed oxide particles and ZrNd-based mixed oxide particles is formed, the proportion of the total amount of the CeZr-based mixed oxide particles and the ZrNd-based mixed oxide particles in the total amount of the Pt-carried activated alumina particles, the CeZr-based mixed oxide particles and the ZrNd-based mixed oxide particles is 10% to 60% by mass, both inclusive, and the mass ratio of the CeZr-based mixed oxide particles to the ZrNd-based mixed oxide particles is 20/80 to 80/20, both inclusive. This configuration enhances the particulate burning property and the low-temperature exhaust gas conversion efficiency.

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