Ceramic filter and catalyst-loaded ceramic filter

Details Ceramic filter and catalyst-loaded ceramic filter Ceramic filter and catalyst-loaded ceramic filter

2006-05-23

2006-05-23

Bos, Steven (Department: 1754)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Waste gas purifier

C422S180000, C428S304400

Reexamination Certificate

active

07048894

ABSTRACT:
A catalyst-loaded ceramic filter made of a ceramic material capable of directly supporting a catalyst component thereon is capable of providing early activation of the catalyst with a low coefficient of thermal expansion and light weight, without compromising the high porosity of the filter substrate. A catalyst-loaded ceramic filter is made of a ceramic material of which one or more kinds of element among its constituent elements is substituted with an element other than the constituent elements, for example a ceramic material with a part of Si or other elements included in cordierite is substituted with W or Co, as a filter substrate of honeycomb structure having a number of cells separated by porous walls, and supporting a catalyst such as a noble metal directly on the W.

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