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公开(公告)号:JP4523741B2
公开(公告)日:2010-08-11
申请号:JP2001240387
申请日:2001-08-08
Applicant: 北陸電力株式会社 , 千代田化工建設株式会社
IPC: B01D53/86 , B01D53/50 , B01D53/81 , B01J31/06 , B01J31/40 , B01J38/48 , C01B17/69 , C01B17/74 , C01B17/775
CPC classification number: Y02A50/2349 , Y02P20/584
Abstract: PROBLEM TO BE SOLVED: To reduce cost by enhancing the activity of an activated carbon catalyst, prolonging the service life of the catalyst and increasing waste gas treating capacity per unit volume of activated carbon catalyst packing in a contact process flue gas desulfurization process in which gaseous sulfur dioxide in gas to be treated is adsorbed and oxidized with the activated carbon catalyst and removed. SOLUTION: In a method for adsorbing and oxidizing gaseous sulfur dioxide by contact with activated carbon-base moldings and recovering and removing the gaseous sulfur dioxide as sulfuric acid, the activated carbon-base moldings comprise activated carbon, a water-repellent resin and a slightly water-soluble compound of a transition metal selected from iron, cobalt, nickel, vanadium and manganese.
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公开(公告)号:JP5357858B2
公开(公告)日:2013-12-04
申请号:JP2010245048
申请日:2010-11-01
Applicant: 千代田化工建設株式会社 , 北陸電力株式会社
Abstract: PROBLEM TO BE SOLVED: To provide a catalyst structure for a flue gas desulfurization apparatus, in which the strength of the supported part of the catalyst structure is increased and thus durability is improved; to provide a catalyst unit; and to provide a method for manufacturing the catalyst structure. SOLUTION: The honeycomb catalyst structure 10 to be used in the flue gas desulfurization apparatus for recovering sulfur oxides in flue gas as sulfuric acid is formed into an integrated block-like shape having many flow passage spaces 12 by joining and stacking activated carbon-based desulfurization catalyst sheets, and is placed while being supported by supporting parts 31Ca and 31Cb. In the catalyst structure, the stacked desulfurization catalyst sheets are joined in regions above the supported parts supported by at least the supporting parts 31Ca at both side ends. COPYRIGHT: (C)2011,JPO&INPIT
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