Title:
METHOD FOR REGENERATION OF EXHAUST GAS TREATMENT CATALYST, AND EXHAUST GAS TREATMENT CATALYST PRODUCED USING THE METHOD
Document Type and Number:
WIPO Patent Application WO/2011/152080
Kind Code:
A1
Abstract:
A regenerated exhaust gas treatment catalyst (17) can be produced by carrying out: a used catalyst coarse grinding step (S1) for coarsely grinding a used exhaust gas treatment catalyst (11); a separation step (S2) for separating a coarsely ground material into coarse pieces (12) and a fine powder (13); a used catalyst fine grinding step (S3) for finely grinding the coarse pieces (12); steps (S4) to (S7) for kneading the fine powder together with other raw materials, molding a kneaded material, and drying and burning a molded material to produce a base material (14); a fresh catalyst grinding step (S8) for grinding a fresh exhaust gas treatment catalyst (15); a slurry formation step (S9) for forming a slurry solution of the ground product of the fresh exhaust gas treatment catalyst (15); a slurry coating step (S10) for coating the surface of the base material (14) with the slurry solution (16); and a coating drying step (S11) and a coating burning step (S12) for drying the base material (14) that has been coated with the slurry solution (16) and burning the base material (14) at a temperature higher than the burning temperature employed in the production of the exhaust gas treatment catalyst (15).
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Inventors:
OBAYASHI Yoshiaki (16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
尾林 良昭 (〒15 東京都港区港南二丁目１６番５号 三菱重工業株式会社内 Tokyo, 〒1088215, JP)
KIYOSAWA Masashi (16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
尾林 良昭 (〒15 東京都港区港南二丁目１６番５号 三菱重工業株式会社内 Tokyo, 〒1088215, JP)
KIYOSAWA Masashi (16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
Application Number:
JP2011/051690
Publication Date:
December 08, 2011
Filing Date:
January 28, 2011
Export Citation:
Assignee:
MITSUBISHI HEAVY INDUSTRIES, LTD. (16-5, Konan 2-chome Minato-k, Tokyo 15, 〒1088215, JP)
三菱重工業株式会社 (〒15 東京都港区港南二丁目１６番５号 Tokyo, 〒1088215, JP)
OBAYASHI Yoshiaki (16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
尾林 良昭 (〒15 東京都港区港南二丁目１６番５号 三菱重工業株式会社内 Tokyo, 〒1088215, JP)
三菱重工業株式会社 (〒15 東京都港区港南二丁目１６番５号 Tokyo, 〒1088215, JP)
OBAYASHI Yoshiaki (16-5, Konan 2-chome, Minato-k, Tokyo 15, 〒1088215, JP)
尾林 良昭 (〒15 東京都港区港南二丁目１６番５号 三菱重工業株式会社内 Tokyo, 〒1088215, JP)
International Classes:
B01J38/48; B01D53/94; B01D53/96; B01J23/92; B01J38/00
Attorney, Agent or Firm:
MITSUISHI Toshiro et al. (Mitsuishi Law and Patent Office, 9-15 Akasaka 1-chome, Minato-k, Tokyo 52, 〒1070052, JP)
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Claims: