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US 10,207,258 B2Granted
Porous ceramic body to reduce emissions
AssigneeCorning Incorporated
InventorMallanagouda Dyamanagouda Patil
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Abstract
A porous ceramic honeycomb body including a substrate of intersecting porous walls forming axial channels extending from a first end face to a second end face. An active portion of the walls include a zeolite catalyst disposed inside pores thereof and/or is comprised of an extruded zeolite and a three way catalyst (TWC) is disposed on wall surfaces of at least a portion of the active portion.
Claims19
A porous ceramic honeycomb body, comprising:
- a substrate of porous walls forming channels extending from a first end face to a second end face;
- an in wall zeolite catalyst disposed inside pores of a first portion of the walls;
- and
- a three way catalyst (TWC) disposed on wall surfaces of the first portion of the walls,
- wherein the first portion of the walls is spaced apart from the first end face by a second portion of the walls, wherein the first end face is an inlet side of the porous ceramic honeycomb body.
2 more elements
Dependencies are inferred from the claim text.