EMISSIONS TREATMENT ARTICLES WITH INORGANIC FILTRATION DEPOSITS AND CATALYTIC MATERIAL

A method for making a filtration article comprising coating a catalytic material within porous ceramic walls of a honeycomb filter body, thereafter depositing a filler material within the body, and exposing the body to a surface treatment to deposit inorganic deposits within the body on one or more...

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Bibliographische Detailangaben
Hauptverfasser:	DESHMANE, Vishwanath Ganpat, ZHONG, Danhong, BAYLISS, Ryan David
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ARTIFICIAL STONE BLASTING CEMENTS CERAMICS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HEATING LIGHTING LIME, MAGNESIA MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL REFRACTORIES SEPARATION SLAG STEAM ENGINES THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF NATURAL STONE WEAPONS
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Beschreibung
Zusammenfassung:	A method for making a filtration article comprising coating a catalytic material within porous ceramic walls of a honeycomb filter body, thereafter depositing a filler material within the body, and exposing the body to a surface treatment to deposit inorganic deposits within the body on one or more portions of the walls, and burning off the filler material. A filtration article comprises inorganic deposits disposed on walls defining inlet channels; and a catalytic material in pores of walls. At least a portion of the inorganic deposits comprise bridging inorganic deposits which at least partially extend over the pores that extend to the surface of the walls, and such bridging inorganic deposits are spaced away from the catalytic material which is disposed within the walls. Soot treatment is used to space away the bridging inorganic particles from the catalytic material and/or substantially separate the inorganic particles from the catalytic material.