EP4549627A4 - Device and method - Google Patents

Device and method

Info

Publication number: EP4549627A4
Authority: EP; European Patent Office
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Pending

Application number

EP23831536.0A

Other languages

German (de)

French (fr)

Other versions

EP4549627A1 (en

Inventor

Yoshifumi Wada

Tomomi Kawai

Akiyasu Funakawa

Yoshifumi Kado

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Asahi Kasei Corp

Asahi Chemical Industry Co Ltd

Original Assignee

Asahi Kasei Corp

Asahi Chemical Industry Co Ltd

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2022-06-30

Filing date

2023-06-28

Publication date

2025-11-05

2023-06-28 Application filed by Asahi Kasei Corp, Asahi Chemical Industry Co Ltd filed Critical Asahi Kasei Corp

2025-05-07 Publication of EP4549627A1 publication Critical patent/EP4549627A1/en

2025-11-05 Publication of EP4549627A4 publication Critical patent/EP4549627A4/en

Status Pending legal-status Critical Current

Links

Classifications

- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/02—Hydrogen or oxygen
- C25B1/04—Hydrogen or oxygen by electrolysis of water
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/02—Process control or regulation
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C25B15/02—Process control or regulation
- C25B15/023—Measuring, analysing or testing during electrolytic production
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/34—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis
- C25B1/46—Simultaneous production of alkali metal hydroxides and chlorine, oxyacids or salts of chlorine, e.g. by chlor-alkali electrolysis in diaphragm cells
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
- C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
- C25B11/052—Electrodes comprising one or more electrocatalytic coatings on a substrate
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
- C25B11/051—Electrodes formed of electrocatalysts on a substrate or carrier
- C25B11/073—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material
- C25B11/075—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of a single catalytic element or catalytic compound
- C25B11/081—Electrodes formed of electrocatalysts on a substrate or carrier characterised by the electrocatalyst material consisting of a single catalytic element or catalytic compound the element being a noble metal
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B15/00—Operating or servicing cells
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/70—Assemblies comprising two or more cells
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B9/00—Cells or assemblies of cells; Constructional parts of cells; Assemblies of constructional parts, e.g. electrode-diaphragm assemblies; Process-related cell features
- C25B9/70—Assemblies comprising two or more cells
- C25B9/73—Assemblies comprising two or more cells of the filter-press type
- C25B9/77—Assemblies comprising two or more cells of the filter-press type having diaphragms

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Chemical Kinetics & Catalysis (AREA)
Electrochemistry (AREA)
Materials Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Automation & Control Theory (AREA)
Analytical Chemistry (AREA)
Inorganic Chemistry (AREA)
Electrolytic Production Of Metals (AREA)
Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

EP23831536.0A 2022-06-30 2023-06-28 Device and method Pending EP4549627A4 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
JP2022105341		2022-06-30
PCT/JP2023/024033 WO2024005096A1 (en)	2022-06-30	2023-06-28	Device and method

Publications (2)

Publication Number	Publication Date
EP4549627A1 EP4549627A1 (en)	2025-05-07
EP4549627A4 true EP4549627A4 (en)	2025-11-05

Family

ID=89382375

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP23831536.0A Pending EP4549627A4 (en)	2022-06-30	2023-06-28	Device and method

Country Status (8)

Country	Link
US (1)	US20250341011A1 (en)
EP (1)	EP4549627A4 (en)
JP (1)	JP7823191B2 (en)
KR (1)	KR20250005487A (en)
CN (1)	CN119384524A (en)
AU (1)	AU2023300838A1 (en)
TW (1)	TWI858797B (en)
WO (1)	WO2024005096A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2001078164A2 (en) *	2000-04-11	2001-10-18	Recherche 2000 Inc.	Method and apparatus for acquisition, monitoring, display and diagnosis of operational parameters of electrolysers
JP2002012996A (en) *	2000-06-30	2002-01-15	Nippon Mining & Metals Co Ltd	Automatic detection method of abnormal electrode in electrolytic smelting
US10465302B2 (en) *	2014-08-07	2019-11-05	Marathon Systems, Inc.	Modular gaseous electrolysis apparatus with actively-cooled header module, co-disposed heat exchanger module and gas manifold modules therefor
US20220170170A1 (en) *	2020-11-30	2022-06-02	Recherche 2000 Inc.	Methods and systems for detecting contamination in electrolysis cells

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP3406403B2 (en) *	1994-09-16	2003-05-12	田中貴金属工業株式会社	Electrode for strong acid water
JP3398104B2 (en) *	1999-12-17	2003-04-21	三洋電機株式会社	Water treatment equipment
ITMI20101100A1 (en) *	2010-06-17	2011-12-18	Industrie De Nora Spa	SYSTEM FOR THE HYPOCLORITE ELECTROCHEMICAL GENERATION
CN107750284B (en) *	2015-04-20	2019-11-19	英尼奥斯科技有限公司	Electrode assembly, electrode structure, and electrolyzer
KR102272749B1 (en)	2016-11-22	2021-07-06	아사히 가세이 가부시키가이샤	Electrode for electrolysis
US11339484B2 (en)	2017-03-13	2022-05-24	Asahi Kasei Kabushiki Kaisha	Electrolytic cell and electrolyzer
CN108728864A (en) *	2017-04-17	2018-11-02	蓝星(北京)化工机械有限公司	A kind of electrode coating repair method
JP7381008B2 (en) *	2019-09-20	2023-11-15	Ｅｎｅｏｓ株式会社	Hydrogen generation system control method and hydrogen generation system
JP2021130859A (en) *	2020-02-21	2021-09-09	パナソニックＩｐマネジメント株式会社	Hydrogen production system and method of operating the same
JP7784802B2 (en)	2020-04-28	2025-12-12	旭化成株式会社	Multipolar electrolyzer for water electrolysis
CN114351189B (en) *	2021-10-13	2023-03-24	杭州三耐环保科技股份有限公司	Electrolytic production monitoring method and system

2023
- 2023-06-28 AU AU2023300838A patent/AU2023300838A1/en active Pending
- 2023-06-28 KR KR1020247040604A patent/KR20250005487A/en active Pending
- 2023-06-28 JP JP2024530927A patent/JP7823191B2/en active Active
- 2023-06-28 US US18/879,380 patent/US20250341011A1/en active Pending
- 2023-06-28 EP EP23831536.0A patent/EP4549627A4/en active Pending
- 2023-06-28 WO PCT/JP2023/024033 patent/WO2024005096A1/en not_active Ceased
- 2023-06-28 CN CN202380042267.4A patent/CN119384524A/en active Pending
- 2023-06-30 TW TW112124528A patent/TWI858797B/en active

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2001078164A2 (en) *	2000-04-11	2001-10-18	Recherche 2000 Inc.	Method and apparatus for acquisition, monitoring, display and diagnosis of operational parameters of electrolysers
JP2002012996A (en) *	2000-06-30	2002-01-15	Nippon Mining & Metals Co Ltd	Automatic detection method of abnormal electrode in electrolytic smelting
US10465302B2 (en) *	2014-08-07	2019-11-05	Marathon Systems, Inc.	Modular gaseous electrolysis apparatus with actively-cooled header module, co-disposed heat exchanger module and gas manifold modules therefor
US20220170170A1 (en) *	2020-11-30	2022-06-02	Recherche 2000 Inc.	Methods and systems for detecting contamination in electrolysis cells

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2024005096A1 *

Also Published As

Publication number	Publication date
TWI858797B (en)	2024-10-11
TW202405952A (en)	2024-02-01
AU2023300838A1 (en)	2025-01-09
WO2024005096A1 (en)	2024-01-04
KR20250005487A (en)	2025-01-09
JPWO2024005096A1 (en)	2024-01-04
JP7823191B2 (en)	2026-03-03
US20250341011A1 (en)	2025-11-06
CN119384524A (en)	2025-01-28
EP4549627A1 (en)	2025-05-07

Legal Events

Date	Code	Title	Description
2024-01-05	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE
2025-04-04	PUAI	Public reference made under article 153(3) epc to a published international application that has entered the european phase	Free format text: ORIGINAL CODE: 0009012
2025-04-04	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
2025-05-07	17P	Request for examination filed	Effective date: 20241218
2025-05-07	AK	Designated contracting states	Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
2025-10-08	DAV	Request for validation of the european patent (deleted)
2025-10-08	DAX	Request for extension of the european patent (deleted)
2025-10-24	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: EXAMINATION IS IN PROGRESS
2025-11-05	A4	Supplementary search report drawn up and despatched	Effective date: 20251009
2025-11-05	RIC1	Information provided on ipc code assigned before grant	Ipc: C25B 15/00 20060101AFI20251002BHEP Ipc: C25B 1/46 20060101ALI20251002BHEP Ipc: C25B 9/00 20210101ALI20251002BHEP Ipc: C25B 9/77 20210101ALI20251002BHEP Ipc: C25B 11/052 20210101ALI20251002BHEP Ipc: C25B 11/081 20210101ALI20251002BHEP Ipc: C25B 15/023 20210101ALI20251002BHEP Ipc: C25B 1/04 20210101ALI20251002BHEP
2025-11-26	17Q	First examination report despatched	Effective date: 20251023

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