REGENERATION METHOD FOR DENITRATION CATALYST

Title:

REGENERATION METHOD FOR DENITRATION CATALYST

Document Type and Number:

Japanese Patent JP2012152672

Kind Code:

A

Abstract:

To make effective use by regeneration of used denitration catalyst by providing a method for highly efficiently removing difficult-to-remove ions adsorbed to TiO₂ at a low cleaning frequency and preferably with one cleaning.

This regeneration method for denitration catalyst implements dewatering and subsequent drying, after the spent denitration catalyst with titanium oxide as primary component is brought into contact with slurry in which zeolite expressed by a rational formula: W_mZ_nO_2nNH₂O (Z=Si+Al, N=indefinite, W=Ca, Ba, Sr) is scattered. After completion of the drying, it is impregnated with a solution including at least one type of active component compound selected from V, Mo and W and dried.

Inventors:

MATSUYAMA KOTOE
KATO YASUYOSHI
IMADA NAOMI

Application Number:

JP2011012011A

Publication Date:

August 16, 2012

Filing Date:

January 24, 2011

Export Citation:

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Assignee:

BABCOCK HITACHI KK

International Classes:

B01J23/92; B01D53/94; B01D53/96; B01J23/30; B01J38/48; B01J38/60; B01J38/62

Attorney, Agent or Firm:

Takenaga Kawakita

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