Title:
METHOD FOR REGENERATING CATSLYST, APPARATUS FOR REGENERATING CATSLYST AND PROGRAM
Document Type and Number:
WIPO Patent Application WO/2021/261477
Kind Code:
A1
Abstract:
This method for regenerating a catalyst comprises: a step wherein a catalyst is washed with water; a step wherein the water-washed catalyst is wetted with a first chemical agent that has been repeatedly used; a step wherein the catalyst, which has been wetted with the first chemical agent, is wetted with a second chemical agent; and a step wherein the catalyst is washed with a finish cleaning liquid that is water or sulfamic acid-containing water. With respect to this method for regenerating a catalyst, the first chemical agent and the second chemical agent contain at least an inorganic acid and a fluorine compound; and the inorganic acid contains hydrochloric acid, hydrochloric acid and boric acid, or sulfamic acid.
Inventors:
IWAMOTO KAZUHIRO (JP)
NOCHI KATSUMI (JP)
YONEMURA MASANAO (JP)
MUKAI DAISUKE (JP)
KAKO HIROSHI (JP)
NOCHI KATSUMI (JP)
YONEMURA MASANAO (JP)
MUKAI DAISUKE (JP)
KAKO HIROSHI (JP)
Application Number:
PCT/JP2021/023556
Publication Date:
December 30, 2021
Filing Date:
June 22, 2021
Export Citation:
Assignee:
MITSUBISHI POWER LTD (JP)
International Classes:
B01J38/60; B01D53/86; B01J35/02; B01J35/04; B01J38/62
Domestic Patent References:
| WO2019004123A1 | 2019-01-03 | |||
| WO2017010402A1 | 2017-01-19 |
Foreign References:
| JP2011031237A | 2011-02-17 | |||
| JPH10337483A | 1998-12-22 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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