Method for processing an edge of catalyst-supporting honeycomb structure in exhaust gas denitration apparatus

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United States of America Patent

PATENT NO 9802179
SERIAL NO

14380576

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Abstract

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A method for processing an edge of a catalyst-supporting honeycomb structure in an exhaust gas denitration apparatus, in which an exhaust gas denitration apparatus equipped with a denitration catalyst-supporting honeycomb structure in which a corrugated plate-like inorganic fiber sheet and a flat plate-like inorganic fiber sheet, each supporting thereon a denitration catalyst containing a silica sol, titania particles, and ammonium metavanadate as a whole primary denitration catalyst layer, are alternately laminated, the edge of gas inlet side of the denitration catalyst-supporting honeycomb structure having the whole primary denitration catalyst layer is dipped in a denitration catalyst-containing slurry for edge processing composed of a silica sol, titania particles or kaolin particles, and ammonium metatungstate to form a coating layer of the denitration catalyst-containing slurry in the edge of the honeycomb structure, and this is dried and then calcinated to form an edge secondary denitration catalyst layer.

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Patent Owner(s)

Patent OwnerAddress
HITACHI ZOSEN CORPORATIONOSAKA-SHI

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hikazudani, Susumu Osaka, JP 39 154
Hino, Naoe Osaka, JP 10 18
Shimizu, Kana Osaka, JP 12 14
Yamamoto, Seigo Osaka, JP 23 210

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