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US 2019/0134614 A1Published application
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.
Claims15
A method of manufacturing a ceramic article, comprising:
- disposing zeolite catalyst inside pores in walls of a first portion of walls of a porous ceramic body;
- and
- disposing three way catalyst (TWC) on wall surfaces of at least a portion of the first portion of the walls of the porous ceramic body.
A porous ceramic honeycomb body, comprising:
- a substrate of porous walls forming channels extending from a first end face to a second end face;
- and
- a three way catalyst (TWC) disposed on wall surfaces of at least a portion of the walls,
- wherein the substrate comprises an extruded zeolite catalyst.
1 more element
A method of manufacturing a ceramic article, comprising:
- extruding a zeolite catalyst porous ceramic body;
- and
- disposing three way catalyst (TWC) on wall surfaces of the walls of the porous ceramic body.
An exhaust system, comprising:
- 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 at least a portion of the walls of the first portion of walls;
- and
- a housing, comprising:
- an inlet configured to accept an exhaust gas stream to be purified,
- an outlet configured to emit purified exhaust gas stream, and
- a chamber between the inlet and outlet configured to direct the exhaust gas stream to be purified into the first end face of the substrate, wherein the substrate is disposed in the chamber.
7 more elements
Dependencies are inferred from the claim text.