WO2022195023A4 - Mec system - Google Patents

Mec system Download PDF

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Publication number
WO2022195023A4
WO2022195023A4 PCT/EP2022/057017 EP2022057017W WO2022195023A4 WO 2022195023 A4 WO2022195023 A4 WO 2022195023A4 EP 2022057017 W EP2022057017 W EP 2022057017W WO 2022195023 A4 WO2022195023 A4 WO 2022195023A4
Authority
WO
WIPO (PCT)
Prior art keywords
mec
stack
gas
cells
measuring system
Prior art date
Application number
PCT/EP2022/057017
Other languages
French (fr)
Other versions
WO2022195023A2 (en
WO2022195023A3 (en
Inventor
Doris Hafenbradl
Johannes ERBEN
Nitant PATEL
Jose RODRIGO
Original Assignee
Electrochaea GmbH
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 Electrochaea GmbH filed Critical Electrochaea GmbH
Priority to CA3207855A priority Critical patent/CA3207855A1/en
Priority to IL305767A priority patent/IL305767A/en
Priority to EP22717730.0A priority patent/EP4308751A2/en
Priority to US18/282,443 priority patent/US20240158938A1/en
Priority to JP2023556992A priority patent/JP2024510000A/en
Publication of WO2022195023A2 publication Critical patent/WO2022195023A2/en
Publication of WO2022195023A3 publication Critical patent/WO2022195023A3/en
Publication of WO2022195023A4 publication Critical patent/WO2022195023A4/en
Priority to ZA2023/07797A priority patent/ZA202307797B/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
    • C25B15/00—Operating or servicing cells
    • C25B15/02—Process control or regulation
    • C25B15/023—Measuring, analysing or testing during electrolytic production
    • C25B15/025—Measuring, analysing or testing during electrolytic production of electrolyte parameters
    • C25B15/027—Temperature
    • 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
    • C25B15/00—Operating or servicing cells
    • C25B15/02—Process control or regulation
    • C25B15/023—Measuring, analysing or testing during electrolytic production
    • C25B15/025—Measuring, analysing or testing during electrolytic production of electrolyte parameters
    • C25B15/029—Concentration
    • C25B15/031—Concentration pH
    • 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
    • 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
    • C25B3/00—Electrolytic production of organic compounds
    • C25B3/01—Products
    • C25B3/03—Acyclic or carbocyclic hydrocarbons
    • 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
    • C25B9/75—Assemblies comprising two or more cells of the filter-press type having bipolar electrodes
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Automation & Control Theory (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Catalysts (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)

Abstract

The present invention provides MEC stack with several or multiple MEC cells comprising at least one gas inlet and at least one degassing element as well as methods to improve the bio-electromethanation reaction catalysed by bio catalysts in these MEC stacks.

Claims

AMENDED CLAIMS received by the International Bureau on 27 January 2023 (27.01.2023)
1 . A Microbial Electrolysis Cell (MEC) for use in a bio-electromethanogenesis plant comprising one gas inlet for an input gas and two or more degassing elements or comprising two or more gas inlet for an input gas and one or more degassing elements.
2. MEC stack (1) in a bio-electromethanogenesis plant comprising: at least two MEC cells according to claim 1 (10a, 10b), wherein each MEC cell (10a, 10b) comprises a cathode compartment (12a, 12b) and an anode compartment (14a, 14b); wherein the MEC cells (10a, 10b) are fluidly connected parallelly or in series; and wherein the MEC stack comprises at least one catholyte circuit (18), connectingthe cathode compartments (12a, 12b) of two or more MEC cells (10a, 10b) of the MEC stack. characterized in that two or more gas inlets (22a, 22b) are located within the at least one catholyte circuit (18).
3. MEC stack (1) according to claim 2, comprising at least one gas inlet (22a, 22b) at one or more individual MEC cells (10a, 10b) of the MEC stack (1).
4. MEC stack (1) according to claim 3 comprising at least one gas inlet (22a, 22b) within the cathode compartment (12a, 12b) of the one or more individual MEC cells (10a, 10b).
5. MEC stack (1) accordingto any of claims claim 2-4, wherein each gas inlet (22a, 22b) comprises a respective flow controller to selectively regulate the gas input from the gas source (20a, 20b).
6. MEC stack accordingto any of claims 2-5, wherein the MEC stack (1) comprises at least one de-gassing element (30) to extract at least a first gas /one of the process gases from the MEC stack (1), wherein one of the de-gassing elements (30) is located after a last MEC cell of the MEC stack.
27
AMENDED SHEET (ARTICLE 19)
7. MEC stack according to claim 6 wherein one or more de-gassing element are located after one or more of the other MEC cells.
8. MEC stack (1) according to any of the claims 2-5 comprising at least one device selected from of a pH measuring system (32), a ORP measuring system (34), a temperature measuring system, a volume measuring system, a current measuring system.
9. MEC stack (1) accordingto claim 8 wherein the pH measuring system and/orthe ORP measuring system and/orthe temperature measuring system and/orthe volume measuring system and/orthe current measuring system are located before and/or after at least one gas inlet (22a, 22b).
10. A MEC stack (1) in a bio-electromethanogenesis plant comprising: at least two MEC cells accordingto claim 1 (10a, 10b), wherein each MEC cell (10a, 10b) comprises a cathode compartment (12a, 12b) and an anode compartment (14a, 14b); wherein the MEC cells (10a, 10b) are fluidly connected parallelly or in series; and wherein the MEC stack comprises at least one catholyte circuit (18) for catholyte, connecting the cathode compartments (12a, 12b) of two or more MEC cells (10a, 10b) of the MEC stack. the MEC stack (1) comprising one gas inlet (22a) for an input gas located at a first MEC cell (10a) of the MEC stack characterized in that the MEC stack (1) comprises at least two de-gassing elements (30a, 30b) for extracting at least one output gas, one of de-gassing element (30a, 30b) being located after a last MEC cell (10b) of the MEC stack (1).
11 . The MEC stack (1) according to claim 10 wherein at least one de-gassing element (30a, 30b) is located after one or more of the other M EC cells.
28
AMENDED SHEET (ARTICLE 19) A MEC module (100) comprisingtwo or more MEC stacks (10a, 10b) accordingto any of the above claims 2-11, the two or more MEC stacks (10a, 10b) being fluidly connected through the catholyte circuit (18). Method to regulate the gas gradient in a bio-electromethanogenesis process in a Microbial Electrolysis cell (MEC)-stack comprising at least two MEC cells, the method comprisingthe steps of a. Measuring in the cathode compartments the stack current and/or voltage of the MEC and/or MEC-stack; b. Determine an input gas quantity for at least one gas inlet point based on the information assessed in step a); c. Feeding the determined input gas quantity through at least one gas inlet point, thereby regulating the volumetric requirement for efficient methane production in the system and d. De-gassing the MEC stack through one or more degassing element located after a MEC cell of the MEC stack. Method accordingto claim 1, wherein step a) further comprises measuring at least one of:
(i) the pH value of the catholyte in the catholyte circuit,
(ii) the oxidation reduction potential of the catholyte
(iii) the temperature of the catholyte thereby regulating in step c) the pH value and/or the temperature and/or the oxidation potential of the catholyte Method accordingto claim 2, wherein step a) comprises measuring the pH value of the catholyte through a pH measuring system located before and/or after the two or more gas inlets points.
29
AMENDED SHEET (ARTICLE 19)
PCT/EP2022/057017 2021-03-19 2022-03-17 Mec system WO2022195023A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CA3207855A CA3207855A1 (en) 2021-03-19 2022-03-17 Mec system
IL305767A IL305767A (en) 2021-03-19 2022-03-17 Mec system
EP22717730.0A EP4308751A2 (en) 2021-03-19 2022-03-17 Mec system
US18/282,443 US20240158938A1 (en) 2021-03-19 2022-03-17 Mec system
JP2023556992A JP2024510000A (en) 2021-03-19 2022-03-17 MEC system
ZA2023/07797A ZA202307797B (en) 2021-03-19 2023-08-08 Mec system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021106890 2021-03-19
DE102021106890.8 2021-03-19

Publications (3)

Publication Number Publication Date
WO2022195023A2 WO2022195023A2 (en) 2022-09-22
WO2022195023A3 WO2022195023A3 (en) 2023-01-19
WO2022195023A4 true WO2022195023A4 (en) 2023-03-16

Family

ID=81346053

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2022/057017 WO2022195023A2 (en) 2021-03-19 2022-03-17 Mec system

Country Status (7)

Country Link
US (1) US20240158938A1 (en)
EP (1) EP4308751A2 (en)
JP (1) JP2024510000A (en)
CA (1) CA3207855A1 (en)
IL (1) IL305767A (en)
WO (1) WO2022195023A2 (en)
ZA (1) ZA202307797B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115029292B (en) * 2022-07-12 2023-08-25 重庆大学 Electrolytic high-efficiency hydrogen-producing biological cathode and domestication method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009155587A2 (en) * 2008-06-20 2009-12-23 The Penn State Research Foundation Electromethanogenic reactor and processes for methane production
US20120199492A1 (en) * 2011-02-08 2012-08-09 Next Fuel, Inc. Bioelectrochemical conversion and sequestration of carbon dioxide into organic compounds
EP3532439A1 (en) * 2016-10-26 2019-09-04 Fluence Water Products and Innovation Ltd Process and system for wastewater treatment
DE102020123184A1 (en) * 2020-09-04 2022-03-10 Electrochaea GmbH Process for the production of a synthetic product, e.g., methane, using methanogenic microorganisms in a microbial electrolytic cell (MEC) by employing a separate nutrient supply strategy

Also Published As

Publication number Publication date
EP4308751A2 (en) 2024-01-24
JP2024510000A (en) 2024-03-05
CA3207855A1 (en) 2022-09-22
WO2022195023A2 (en) 2022-09-22
US20240158938A1 (en) 2024-05-16
ZA202307797B (en) 2024-03-27
WO2022195023A3 (en) 2023-01-19
IL305767A (en) 2023-11-01

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