Denitration Catalyst Regeneration Method, Denitration Catalyst

Denitration Catalyst Regeneration Method, Denitration Catalyst Regeneration System, And Cleaning Agent For Denitration Catalyst

Abstract: Provided are: a cleaning agent for a denitration catalyst; and a denitration catalyst regeneration method and a denitration catalyst regeneration system which make it possible to efficiently remove matter adhering to a surface of a catalyst and to greatly restore catalytic performance. The regeneration method includes: a prewashing step (S12) of washing a denitration catalyst with water; a liquid agent cleaning step (S14) of immersing the denitration catalyst washed with water in a liquid agent containing an inorganic acid and a fluorine compound; a step of recovering the denitration catalyst from the liquid agent; and a finish washing step (S16) of washing the denitration catalyst recovered from the liquid agent with a finish cleaning liquid which is water or sulfamic acid-containing water.

Patent Information

Application #

Filing Date

26 September 2023

Publication Number

38/2024

Publication Type

INA

Invention Field

CHEMICAL

Status

Email

Parent Application

Applicants

MITSUBISHI HEAVY INDUSTRIES, LTD.

2-3, Marunouchi 3-Chome, Chiyoda-ku, Tokyo 1008332, Japan

Inventors

1. MASUDA, Tomotsugu

c/o MITSUBISHI HITACHI POWER SYSTEMS, LTD., 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-shi, Kanagawa 2208401, Japan

2. YONEMURA, Masanao

c/o MITSUBISHI HEAVY INDUSTRIES, LTD., 16-5, Konan 2-chome, Minato-ku, Tokyo 1088215, Japan

3. DEMOTO, Masanori

c/o MITSUBISHI HITACHI POWER SYSTEMS, LTD., 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-shi, Kanagawa 2208401, Japan

4. IWAMOTO, Kazuhiro

c/o MITSUBISHI HEAVY INDUSTRIES, LTD., 16-5, Konan 2-chome, Minato-ku, Tokyo 1088215, Japan

5. YASUTAKE, Toshinobu

c/o MITSUBISHI HEAVY INDUSTRIES, LTD., 16-5, Konan 2-chome, Minato-ku, Tokyo 1088215, Japan

6. YOKOYAMA, Makoto

c/o MHPS Engineering Co., Ltd., 12, Nishikicho, Naka-ku, Yokohama-shi, Kanagawa 2318715, Japan

Specification

Documents

Application Documents

#	Name	Date
1	202318064445-STATEMENT OF UNDERTAKING (FORM 3) [26-09-2023(online)].pdf	2023-09-26
2	202318064445-REQUEST FOR EXAMINATION (FORM-18) [26-09-2023(online)].pdf	2023-09-26
3	202318064445-POWER OF AUTHORITY [26-09-2023(online)].pdf	2023-09-26
4	202318064445-FORM 18 [26-09-2023(online)].pdf	2023-09-26
5	202318064445-FORM 1 [26-09-2023(online)].pdf	2023-09-26
6	202318064445-DRAWINGS [26-09-2023(online)].pdf	2023-09-26
7	202318064445-DECLARATION OF INVENTORSHIP (FORM 5) [26-09-2023(online)].pdf	2023-09-26
8	202318064445-COMPLETE SPECIFICATION [26-09-2023(online)].pdf	2023-09-26
9	202318064445-FORM 3 [15-03-2024(online)].pdf	2024-03-15