EP4010514A1 - Dispositif électrolyseur et procédé de réduction de dioxyde de carbone - Google Patents

Dispositif électrolyseur et procédé de réduction de dioxyde de carbone

Info

Publication number
EP4010514A1
EP4010514A1 EP20797406.4A EP20797406A EP4010514A1 EP 4010514 A1 EP4010514 A1 EP 4010514A1 EP 20797406 A EP20797406 A EP 20797406A EP 4010514 A1 EP4010514 A1 EP 4010514A1
Authority
EP
European Patent Office
Prior art keywords
electrolyte
gas diffusion
gas
diffusion electrode
space
Prior art date
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
EP20797406.4A
Other languages
German (de)
English (en)
Inventor
David Reinisch
Nemanja Martic
Günter Schmid
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.)
Siemens Energy Global GmbH and Co KG
Original Assignee
Siemens Energy Global GmbH and Co KG
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 Siemens Energy Global GmbH and Co KG filed Critical Siemens Energy Global GmbH and Co KG
Publication of EP4010514A1 publication Critical patent/EP4010514A1/fr
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
    • 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
    • C25B3/20—Processes
    • C25B3/25—Reduction
    • C25B3/26—Reduction of carbon dioxide
    • 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
    • C25B9/60—Constructional parts of 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
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/02—Hydrogen or oxygen
    • 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
    • C25B1/23—Carbon monoxide or syngas
    • 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
    • C25B1/50—Processes
    • 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
    • C25B11/02—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form
    • C25B11/03—Electrodes; Manufacture thereof not otherwise provided for characterised by shape or form perforated or foraminous
    • C25B11/031—Porous electrodes
    • C25B11/032—Gas diffusion 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
    • 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
    • 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
    • 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
    • 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
    • C25B9/17—Cells comprising dimensionally-stable non-movable electrodes; Assemblies of constructional parts thereof

Definitions

  • the invention relates to an electrolyzer for carbon dioxide reduction. Carbon dioxide is transported past a gas diffusion cathode of an electrolysis cell and there catalytically reduced to at least one energetically higher-value product.
  • the carbon dioxide is converted naturally into carbohydrates through photosynthesis. This process, which is broken down into many sub-steps in terms of time and space at the molecular level, is very difficult to copy on an industrial scale. Compared to pure photocatalysis, the electrochemical reduction of carbon dioxide is currently the most efficient way.
  • a hybrid form is light-assisted electrolysis or electrically assisted photo-catalysis. Both terms are to be used synonymously, depending on the perspective of the observer.
  • photosynthesis in this process, with the addition of electrical energy, if necessary photo-assisted, which is preferably obtained from regenerative energy sources such as wind or sun, carbon dioxide is converted into an energetically higher-value product such as carbon monoxide, methane, ethene or other alcohols.
  • the amount of energy required for this reduction ideally corresponds to the combustion energy of the fuel and should only come from regenerative sources.
  • Gas mixtures richer in carbon monoxide or pure carbon monoxide are also used for carbonylation reactions such as hydroformulation by carboxylic acid synthesis or alcohol carbonylation, in which the primary carbon chain is lengthened.
  • the possibility of generating carbon monoxide from carbon dioxide with the inclusion of regenerative energy sources opens up a multitude of possibilities for partially or fully replacing fossil raw materials as a source of carbon for many chemical products.
  • One of these routes is the electrochemical breakdown of carbon dioxide into carbon monoxide and oxygen. This is a one-step process that does not require high temperatures or overpressure. However, it is a relatively complex electrolysis process in which carbon dioxide has to be added as a substrate as a gaseous substrate.
  • the gaseous carbon dioxide can react with the charge carriers generated in the electrolysis and is therefore chemically bound in the electrolyte used:
  • the release takes place either in the electrolyte, on a membrane contact surface or directly on the anode.
  • gas bubbles are released in the ionic current path, which can lead to greatly increased cell voltages and thus to massive losses in energy efficiency.
  • a mixture of carbon dioxide and oxygen would be formed at the anode.
  • Classic carbon dioxide separation processes such as amine or methanol washes cannot be used for safety reasons.
  • purified carbon dioxide is also used for such electrochemical cells for the decomposition of carbon dioxide into carbon monoxide and oxygen.
  • DE 102018 202 184 A1 discloses an electrolysis cell comprising a cathode space comprising a cathode, an anode space comprising an anode, and a salt bridge space which is arranged between the cathode and anode, the cathode and the anode being designed as a gas diffusion electrode.
  • the electrolyser according to the invention according to claim 1 for carbon dioxide reduction comprises an electrolysis cell with a cathode gas diffusion electrode and with an anode gas diffusion electrode.
  • the cathode gas diffusion electrode (hereinafter also abbreviated as GDK) adjoins a cathode gas space on a flat first side.
  • the first side of the anode gas diffusion electrode (GDA) also adjoins an anode gas space over a large area.
  • the two gas diffusion electrodes each have a second side which is opposite the respective first side and which is connected to a common electrolyte space.
  • the electrolyte space is designed in such a way that it extends from the cathode gas diffusion electrode to the anode gas diffusion electrode and is at least partially delimited by the two gas diffusion electrodes with their second side facing away from the respectively assigned gas spaces.
  • the anode gas diffusion electrode has a cation-selective coating.
  • the electrolysis cell of the electrolyzer according to claim 1 has two gas diffusion electrodes, namely a gas diffusion electrode on the anode (GDA) and one on the cathode (GDK). Both gas diffusion electrodes are connected to their own separate gas space, and they each delimit this separate gas space from a common electrolyte space.
  • the described electrolytic cell of the electrolyzer thus has only one electrolyte space, which is not separated by a membrane or a diaphragm. The electrolyte located in the electrolyte space and flowing through it is thus connected to both gas diffusion electrodes.
  • an electrolyser with these two essential features, namely two gas diffusion electrodes both on the anode and on the cathode and a common, not separate electrolyte space, means that carbon dioxide that gets through the GDK into the electrolyte space can dissolve in this in an oversaturated manner and be discharged from the electrolyte space before it mixes with the oxygen produced there at the GDA and thus becomes economically unusable for the further process feed.
  • the oxygen is created at the GDA, which diffuses through it and is discharged through the separate gas space of the GDA. Mixing of the generated oxygen with the carbon dioxide is thus greatly reduced. The reduction can be reduced to 5% of the value that is usual in a conventional design with a gas diffusion electrode and two separate electrolyte chambers.
  • the electrolyte space is provided with an electrolyte supply line and an electrolyte discharge line, which together with a pumping device form an electrolyte circuit. It is therefore also a common electrolyte circuit for the entire electrolyzer, which makes two separate electrolyte reservoirs or a neutralization of the respective reservoirs superfluous.
  • a cathode gas space and an educt gas supply device for supplying educt gases are expediently provided.
  • the anode compartment has an oxygen discharge device. Through this Oxygen that has entered the anode gas space through the anode can be extracted from the process.
  • the GDA is designed in such a way that it has a cation-selective coating.
  • the GDA is coated with an ion-conducting polymer.
  • This can conduct the protons produced into the electrolyte, but is impermeable to gases. Therefore, CO2 gas bubbles cannot enter the anode gas space and molecular gaseous oxygen that forms on the anode cannot get into the electrolyte.
  • the cation-selective coating is preferably located on a side which is directed towards the electrolyte space, as a result of which an effective transport of protons into the electrolyte can be achieved.
  • Another component of the invention is a method for operating an electrolyzer having the features of patent claim 8.
  • This method comprises the following steps: introducing a carbon dioxide-containing gas into a cathode gas space.
  • the carbon dioxide is reduced to carbon monoxide on a cathode gas diffusion electrode, the cathode gas diffusion electrode resting on a first side against the cathode gas space and with the opposite, second side resting against an electrolyte space.
  • the cathode gas diffusion electrode is flat and has the first and second flat sides, with one side resting against the cathode gas space and the other side resting against the electrolyte space.
  • a liquid electrolyte flows through the electrolyte space, in which carbon dioxide is in turn dissolved.
  • molecular oxygen is released on an anode gas diffusion electrode surface, which oxygen diffuses through an anode gas diffusion electrode.
  • Both the cathode gas diffusion electrode and the anode gas diffusion electrode adjoin the common electrolyte space with the second side in each case.
  • the electrolyte outside the electrolyte space is discharged from the CO2 dissolved in it.
  • the anode gas diffusion electrode has a cation-selective coating in the process.
  • the method according to the invention is carried out with the electrolyzer according to the invention.
  • Embodiments that have been described with respect to the electrolyser can be used accordingly in the method according to the invention, and vice versa.
  • the claimed method also has the special feature that the electrolyte space is a common electrolyte space for both the cathode and the anode and therefore has no corresponding separation such as a membrane or diaphragm.
  • both the anode and the cathode are each designed as a gas diffusion electrode, GDA and GDK. This has the effect that oxygen, which is released in the electrolyte during the process, can diffuse through the anode gas diffusion electrode as molecular oxygen and does not mix with the carbon dioxide that is also formed in the electrolyte.
  • the pH value of the electrolyte is in the acidic range, with a slightly acidic range between a pH value between 7 and 2 is aimed at.
  • the electrolyte is in particular an aqueous electrolyte.
  • a gas volume flow of the carbon dioxide at the gas diffusion cathode is at least 5 times as large, in particular 15 times as large, as at the gas diffusion anode. This leads to a further increase in the economic efficiency of the process.
  • Figure 1 shows an electrolyzer with a schematic representation of the individual process devices
  • FIG. 2 shows a very schematic representation of the material flow in the electrolyser according to FIG. 1 with the representation of the individual chemical components
  • Figure 3 shows a cross section through an anode gas diffusion electrode
  • FIG. 4 is a diagram showing the gas volume flow in different areas in the electrolyzer.
  • the electrolyser 2 according to FIG. 1 is shown there in a very schematic manner with regard to its structure.
  • the electrolyser 2 comprises an electrolysis cell 4 in which, in turn, two gas diffusion electrodes are arranged. This is a cathode gas diffusion electrode 6 (hereinafter referred to as GDK). Furthermore, an anode gas diffusion electrode 8 is provided, which is referred to below as GDA.
  • GDA cathode gas diffusion electrode 6
  • GDA anode gas diffusion electrode 8
  • Both gas diffu- Sion electrodes 6, 8 are designed as flat structures which each have two flat sides and thereby separate a gas space from an electrolyte space 16. In detail, this is structured as follows:
  • the GDK 6 has a first side 12 which is connected to a cathode gas space 10 or at least partially delimits it from the electrolyte space 16.
  • the electrolyte space 16 is in turn connected to a second side 18 of the GDK 6.
  • the GDA 8 likewise has a second side 19 which delimits the electrolyte space 16 from the other side.
  • the first side of the GDA 13 in turn adjoins a further gas space, namely the anode gas space 14.
  • the two gas diffusion electrodes 6, 8 thus at least partially delimit the electrolyte space 16 from two sides. What is special about the structure described is that, in contrast to other electrolyser structures or electrolysis cells according to the prior art, the electrolyte space 16 has no separation between the two electrodes.
  • a liquid electrolyte 42 which is located in the electrolyte space 16 in the operating state, is in direct connection both with the second side 18 of the GDK 6 and with the second side 19 of the GDA 8.
  • the electrolysis cell 42 described thus has essential features.
  • the cathode instead of the usual one gas diffusion electrode as the cathode, two gas diffusion electrodes are used in the case described, in this case the anode configured as GDA 8 is thus also a gas diffusion electrode.
  • the anode configured as GDA 8 is thus also a gas diffusion electrode.
  • an electrolyte circuit 26 which has both an rolyte feed line 20 as well as an electrolyte discharge line 22 and a pumping device 24. Furthermore, a CCh separation device 32 is provided in the electrolyte circuit 26, which in turn leads via a connecting line 34, possibly via a CO 2 processing device 46, to an educt gas supply device 28. Furthermore, an electrolyte reservoir 44 is provided in the electrolyte circuit 26.
  • the educt feed device 28 is provided, as already mentioned, in which an educt gas 40, which comprises carbon dioxide, is introduced into the cathode gas space 10.
  • the cathode gas space 10 also includes a product gas outlet device 30, in which the carbon monoxide and excess carbon dioxide formed during the process are discharged.
  • the electrolysis cell also includes the anode gas space 14, which has an oxygen discharge device 36.
  • the voltage U is applied between the two gas diffusion electrodes 6 and 8.
  • the anode gas diffusion electrode has a cation-selective coating (not shown).
  • the electrolyzer 2 described with reference to FIG. 1 is shown once again more schematically, the purpose of which is to illustrate the course of the reaction and the substance flow using the chemical symbols.
  • essentially carbon dioxide is introduced into the cathode gas space 10 as the starting gas and at least partially reduced to carbon monoxide on the first surface 12 of the GDK and discharged again through the product gas outlet device 30 described. Since most of the processes do not lead to a complete reduction of the total carbon dioxide (CO2) to carbon monoxide (CO), both carbon dioxide and carbon monoxide are discharged in the outlet device 30 and are later separated from one another.
  • the Koh lendioxid also passes through the GDK 6 in the electrolyte space 16, where it reacts with the water present there to form hydrocarbonate anions (cf. equation 1 and equation 2).
  • the carbon dioxide recovered in this way is dissolved in the electrolyte 42, possibly strongly supersaturated, and discharged with this from the electrolyte cell 2 or the electrolyte chamber 16.
  • the discharged carbon dioxide can be removed again from the electrolyte 42 in the electrolyte circuit 26 in the described C0 2 separation device 32 and fed back to the educt gas 40.
  • the carbon dioxide can optionally also be processed in a processing device 46.
  • molecular oxygen ( O 2) is generated at the GDA 8, which can diffuse through the GDA 8 and thus get into the anode gas space 14 and escape via the oxygen discharge device 36.
  • the GDA 8 is provided with a hydrophobic layer 38 so that the molecular oxygen can diffuse through the GDA 8, but the liquid water is retained by the aforementioned hydrophobic layer 38.
  • the carbon dioxide is dissolved in a relatively pure form in the electrolyte 42 and can be removed therefrom and fed back into the process. A complex separation of a carbon dioxide-oxygen mixture is not necessary, which is why the process is made much more efficient.
  • the gas volume flows 50 of the gases essentially involved in the process (O2, CO, CO2 and H2) at the individual electrodes or in the electrolyte are shown in FIG.
  • the individual gas volume flows 50 can be recognized by means of different hatching.
  • the gas volume flow 51 of the carbon dioxide is of particular interest here.
  • the gas volume flow 54 in the electrolyte 42 (middle bar) also shows a high carbon dioxide gas volume flow, there is only very little carbon monoxide included.
  • FIG. 4 thus illustrates that the measures taken in the CCh electrolyzer 2 presented here, namely the use of two gas diffusion electrodes as GDK 6 and GDA 8 and an electrolyte space 16 enclosed by them, leads to the loss of carbon dioxide oxide can be reduced from approx. 50% to approx. 5% or even less during electrolysis. Ultimately this means a reduction in carbon dioxide loss of more than 90%.
  • the GDA 8 has a hydrophobic layer 38 which prevents penetration of the electrolyte 42, which is in particular water-based. However, the molecular oxygen can diffuse through the pores of the GDA 8 into the anode gas space 14.
  • the CO2 present as a result of the neutralization does not necessarily have to lead to the formation of gas bubbles in the electrolyte space 16.
  • the neutralization is distributed over the entire electrolyte space 16. Due to the possible oversaturation, the outgassing is distributed over the entire electrolyte 42 in the electrolyte space 16 and the electrolyte circuit 26, which also includes the electrolyte reservoir 44.
  • the CO2 bubbles present in the electrolyte 42 can be separated from the electrolyte 42 before entering the electrolysis cell.
  • the CO2 bubbles come into contact with the GDA and are absorbed by it.
  • the carbon dioxide dissolved by the reaction mixes with the anodically formed oxygen in the anode gas space 14. This part corresponds to the gas volume flow 51 of the carbon dioxide in the right bar 56 of FIG. 4. This carbon dioxide can be regarded as lost for the process.
  • the CO 2 gas bubbles do not come into contact with either of the two gas diffusion electrodes 6, 8 and are carried out of the electrolysis cell 4 with the electrolyte 42.
  • This part of the carbon dioxide can be separated from the liquid electrolyte 42 with the remaining electrolyte 42 as described and, after any processing (CCb processing device 46), can be made available again to the gas cycle, in particular to the educt gas 40, via the connecting line 34.

Landscapes

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

Abstract

L'invention concerne un électrolyseur pour la réduction du dioxyde de carbone, comprenant une cellule électrolytique (4), avec une électrode de diffusion de gaz cathodique (6) et une électrode de diffusion de gaz anodique (8), dans lequel un premier côté (12) de l'électrode de diffusion de gaz cathodique (8) est contigu à une chambre de gaz cathodique (10) de manière plane et, de manière similaire, un premier côté (13) de l'électrode de diffusion de gaz anodique (8) est contigu à une chambre de gaz anodique (14) et une chambre d'électrolyte (16) commune aux deux électrodes de diffusion de gaz (6, 8) est disposée, qui s'étend de l'électrode de diffusion de gaz cathodique (6) à l'électrode de diffusion de gaz anodique (8) et est au moins partiellement délimitée par les deux électrodes de diffusion de gaz (6, 8), leurs second côtés (18, 19) étant orientés à l'opposé des chambres de gaz (10, 14) respectivement associées.
EP20797406.4A 2019-10-25 2020-10-16 Dispositif électrolyseur et procédé de réduction de dioxyde de carbone Pending EP4010514A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102019216500 2019-10-25
DE102019217914 2019-11-20
PCT/EP2020/079144 WO2021078635A1 (fr) 2019-10-25 2020-10-16 Dispositif électrolyseur et procédé de réduction de dioxyde de carbone

Publications (1)

Publication Number Publication Date
EP4010514A1 true EP4010514A1 (fr) 2022-06-15

Family

ID=73020170

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20797406.4A Pending EP4010514A1 (fr) 2019-10-25 2020-10-16 Dispositif électrolyseur et procédé de réduction de dioxyde de carbone

Country Status (5)

Country Link
US (1) US20240229256A9 (fr)
EP (1) EP4010514A1 (fr)
CN (1) CN114585773B (fr)
AU (1) AU2020369070B2 (fr)
WO (1) WO2021078635A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113828126A (zh) * 2021-10-14 2021-12-24 马鹏飞 一种电解装置及co2消纳系统

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010535942A (ja) * 2007-08-03 2010-11-25 ノース−ウエスト ユニヴァーシティ 二酸化硫黄によって減極される陽極を備えた電解槽および水素生成における同電解槽の使用方法
US8562811B2 (en) 2011-03-09 2013-10-22 Liquid Light, Inc. Process for making formic acid
DE102016203946A1 (de) * 2016-03-10 2017-09-28 Siemens Aktiengesellschaft Verfahren und Vorrichtung zur elektrochemischen Nutzung von Kohlenstoffdioxid
DE102016224466A1 (de) * 2016-12-08 2018-06-14 Siemens Aktiengesellschaft Elektrolysezelle oder Elektrodenplatte mit einer Gasdiffusionselektrode und Verfahren zu deren Betrieb
DE102017211930A1 (de) * 2017-07-12 2019-01-17 Siemens Aktiengesellschaft Membran gekoppelte Kathode zur Reduktion von Kohlendioxid in säurebasierten Elektrolyten ohne mobile Kationen
DE102017213471A1 (de) * 2017-08-03 2019-02-07 Siemens Aktiengesellschaft Vorrichtung und Verfahren zur elektrochemischen Nutzung von Kohlenstoffdioxid
DE102018202184A1 (de) * 2018-02-13 2019-08-14 Siemens Aktiengesellschaft Separatorlose Doppel-GDE-Zelle zur elektrochemischen Umsetzung
DE102018210303A1 (de) 2018-06-25 2020-01-02 Siemens Aktiengesellschaft Elektrochemische Niedertemperatur Reverse-Watergas-Shift Reaktion

Also Published As

Publication number Publication date
US20240133057A1 (en) 2024-04-25
CN114585773B (zh) 2024-08-02
US20240229256A9 (en) 2024-07-11
AU2020369070B2 (en) 2023-06-15
CN114585773A (zh) 2022-06-03
AU2020369070A1 (en) 2022-04-14
WO2021078635A1 (fr) 2021-04-29

Similar Documents

Publication Publication Date Title
EP3607111B1 (fr) Structure à deux membranes pour la réduction électrochimique de co2
EP0095997B1 (fr) Procédé pour la production de l'eau oxygénée et son utilisation
WO2019015919A1 (fr) Co2-électrolyseur
WO2018001637A1 (fr) Agencement et procédé pour l'électrolyse du dioxyde de carbone
DE1047765B (de) Verfahren und Vorrichtung zur Herstellung von gesaettigten aliphatischen Carbonsaeuren durch Elektrolyse von waessrigen Loesungen ihrer Salze in mehrkammerigen Zellen
DE102013226357A1 (de) Pulsierende Elektrolytzufuhr in den Reaktionsraum einer Elektrolysezelle mit gasentwickelnden Elektroden
DE102016211155A1 (de) Anordnung und Verfahren für die Kohlendioxid-Elektrolyse
WO2020001851A1 (fr) Rétroréaction électrochimique de conversion de gaz à l'eau à basse température
WO2019025092A1 (fr) Dispositif et procédé d'utilisation électrochimique de dioxyde de carbone
EP3485065A1 (fr) Procédé de production de propanol, d'aldéhyde propionique et/ou d'acide propionique à partir du dioxyde de carbone, d'eau et d'énergie électrique
DE102017203900A1 (de) Elektroden umfassend in Festkörperelektrolyten eingebrachtes Metall
WO2018001638A1 (fr) Agencement et procédé pour l'électrolyse de dioxyde de carbone
DE2528889B2 (de) Verfahren zum Entfernen von Schwefelwasserstoff aus einem Gas
EP4010514A1 (fr) Dispositif électrolyseur et procédé de réduction de dioxyde de carbone
DE102015213947A1 (de) Reduktionsverfahren zur elektrochemischen Kohlenstoffdioxid-Verwertung und Elektrolysesystem mit Anionentauschermembran
WO2024052567A2 (fr) Procédé électrolytique, électrolyseur, système d'électrolyse, utilisation et installation
DE102020004630A1 (de) Druckhaltung in einer Elektrolyseanlage
WO2020156734A1 (fr) Procédé de fabrication de co à bon rendement énergétique
EP3658499A1 (fr) Préparation et séparation de phosgène par électrolyse combinées co2 et chlorure
WO2020126118A1 (fr) Électrolyseur pour la réduction du dioxyde de carbone
DE102020207186A1 (de) CO2 Elektrolyse mit Gasdiffusionselektrode und Salzbildungsvermeidung durch Elektrolytwahl
DE102023109225B3 (de) Verfahren und Anlage zur elektrolytischen Kohlenstoffdioxidgewinnung
DE2727409A1 (de) Verfahren zur gewinnung von ammoniak und schwefelsaeure aus ammoniumsulfatloesungen
DE102017214456A1 (de) CO2-Elektrolyseur und Anlagenkomplex
DE1953563C3 (de) Verfahren zur Abtrennung von Kohlendioxyd aus Gasen

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: UNKNOWN

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

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

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20220308

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 MK MT NL NO PL PT RO RS SE SI SK SM TR

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)