CATALYTIC STRUCTURE FOR WASTE GAS

Title:

CATALYTIC STRUCTURE FOR WASTE GAS

Document Type and Number:

Japanese Patent JP2001000867

Kind Code:

A

Abstract:

To provide a catalytic structure for waste gas with the deposition of catalyst increased and excellent in wear resistance.

This catalytic structure for waste gas is obtained by depositing a catalyst in and on the surface of a substrate formed by honeycombing an inorg.-fiber sheet, and a wear-resistant coating film is formed on the front and rear of an opening on the gas inlet side of the substrate and extended over a specified length toward an opening on the gas outlet side. In this case, the wear-resistant coating film 20 is appropriately formed over a specified distance L from the end of the opening on the gas inlet side to occupy 1/10 to 1/200 of the area of each face. Further, this coating film 20 is conveniently formed by dipping a substrate 10 in a coating agent to a depth of L, hence the substrates 10 are firmly attached to one another, and the film 20 is formed in uniform thickness.

Inventors:

TANAKA MINORU
KOIZUMI MASAHIRO
OIKAWA HIDENORI

Application Number:

JP17561299A

Publication Date:

January 09, 2001

Filing Date:

June 22, 1999

Export Citation:

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Assignee:

NICHIAS CORP

International Classes:

B01D53/86; B01D53/88; B01J33/00; B01J35/04; F01N3/28; B01J27/16; B01J35/06; B01J37/02; (IPC1-7): B01J33/00; B01D53/86; B01J35/04

Attorney, Agent or Firm:

Tadashi Hagino (3 outside)

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