WO2024022926A3 - Waste water recovery system - Google Patents

Waste water recovery system Download PDF

Info

Publication number
WO2024022926A3
WO2024022926A3 PCT/EP2023/070081 EP2023070081W WO2024022926A3 WO 2024022926 A3 WO2024022926 A3 WO 2024022926A3 EP 2023070081 W EP2023070081 W EP 2023070081W WO 2024022926 A3 WO2024022926 A3 WO 2024022926A3
Authority
WO
WIPO (PCT)
Prior art keywords
water
waste water
hydrogen production
storage device
liquid storage
Prior art date
Application number
PCT/EP2023/070081
Other languages
French (fr)
Other versions
WO2024022926A2 (en
Inventor
Zhao XIAOLIANG
Yang CHENGYU
Zhou BINHUI
Original Assignee
John Cockerill Hydrogen Belgium
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.)
Filing date
Publication date
Application filed by John Cockerill Hydrogen Belgium filed Critical John Cockerill Hydrogen Belgium
Publication of WO2024022926A2 publication Critical patent/WO2024022926A2/en
Publication of WO2024022926A3 publication Critical patent/WO2024022926A3/en

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
    • C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
    • C25B15/083—Separating products
    • 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
    • C25B15/08—Supplying or removing reactants or electrolytes; Regeneration of electrolytes
    • C25B15/087—Recycling of electrolyte to electrochemical cell
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis

Abstract

The application provides a waste water recovery system, which is applied to hydrogen production system by water electrolysis, and includes : a liquid storage device, which is in communication with the hydrogen production system by water electrolysis to store the waste water discharged by the gas-water separator of the hydrogen production system by water electrolysis; a liquid level gauge, which is provided on the liquid storage device to acquire liquid level information in the liquid storage device; a liquid pumping device, which is connected with the liquid storage device and is used for transporting the waste water in the liquid storage device to a water replenishing port of the hydrogen production system by water electrolysis through a pipeline; a switching device, which is provided on the pipeline and used for controlling the on-off of the pipeline; and a non return device is provided on the pipeline between the liquid pumping device and the switching device so as to prevent the waste water in the pipeline from flowing back towards the liquid pumping device. This application realizes the recovery and reuse of waste water by transporting the waste water in the liquid storage device to the water replenishing port of the hydrogen production system by water electrolysis. By virtue of such configuration, the pollution caused by waste water discharged from hydrogen production by water electrolysis to the environment can be reduced, and the resulted cost of sewage treatment can be substantially reduced.
PCT/EP2023/070081 2022-07-28 2023-07-19 Waste water recovery system WO2024022926A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202221973872.2U CN218174715U (en) 2022-07-28 2022-07-28 Waste water recovery system
CN202221973872.2 2022-07-28

Publications (2)

Publication Number Publication Date
WO2024022926A2 WO2024022926A2 (en) 2024-02-01
WO2024022926A3 true WO2024022926A3 (en) 2024-03-21

Family

ID=84615450

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2023/070081 WO2024022926A2 (en) 2022-07-28 2023-07-19 Waste water recovery system

Country Status (2)

Country Link
CN (1) CN218174715U (en)
WO (1) WO2024022926A2 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0499189A (en) * 1990-08-06 1992-03-31 Mitsubishi Heavy Ind Ltd Hydrogen gas generator
CN202226927U (en) * 2011-09-01 2012-05-23 光腾光电股份有限公司 Water electrolysis type hydrogen generation equipment for dry and high purity hydrogen
CN206970719U (en) * 2017-04-05 2018-02-06 氢元生物科技股份有限公司 Field plate
CN113930795A (en) * 2021-07-22 2022-01-14 陕西工业职业技术学院 System for producing hydrogen by electrolyzing pure water
CN114086197A (en) * 2021-11-05 2022-02-25 无锡隆基氢能科技有限公司 Discharged liquid recovery system of water electrolysis hydrogen production device and control method of recovery system
CN114657602A (en) * 2022-03-15 2022-06-24 中国船舶重工集团公司第七一八研究所 Water replenishing device and water replenishing method for water electrolysis hydrogen production system

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0499189A (en) * 1990-08-06 1992-03-31 Mitsubishi Heavy Ind Ltd Hydrogen gas generator
CN202226927U (en) * 2011-09-01 2012-05-23 光腾光电股份有限公司 Water electrolysis type hydrogen generation equipment for dry and high purity hydrogen
CN206970719U (en) * 2017-04-05 2018-02-06 氢元生物科技股份有限公司 Field plate
CN113930795A (en) * 2021-07-22 2022-01-14 陕西工业职业技术学院 System for producing hydrogen by electrolyzing pure water
CN114086197A (en) * 2021-11-05 2022-02-25 无锡隆基氢能科技有限公司 Discharged liquid recovery system of water electrolysis hydrogen production device and control method of recovery system
CN114657602A (en) * 2022-03-15 2022-06-24 中国船舶重工集团公司第七一八研究所 Water replenishing device and water replenishing method for water electrolysis hydrogen production system

Also Published As

Publication number Publication date
CN218174715U (en) 2022-12-30
WO2024022926A2 (en) 2024-02-01

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