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174
results.
Updated on
14/09/2026 [08:14:00]
Results 125 to 150 of 174
Absstract of: US20260250857A1
An electrolysis device for producing hydrogen through electrochemical reaction from an aqueous alkali solution is disclosed. The electrolysis device includes an anodic half cell and a cathodic half cell. The anodic half cell and the cathodic half cell are separated via a membrane and the alkali solution can flow through the cathodic half cell. The anodic half cell includes an anodic electrode and the cathodic half cell includes a cathodic electrode. The anodic electrode, the cathodic electrode and the membrane form a membrane-electrode unit. In normal operation of the electrolysis device, an initial fill quantity of the alkali solution in the cathodic half cell can be changed only by diffusion processes through the membrane-electrode unit and/or through electrochemical reaction of the alkali solution in the membrane-electrode unit.
Absstract of: WO2025190563A1
The invention relates to a process for obtaining hydrogen from water, in which an oxidation unit is supplied with a pumpable suspension of zinc particles in alkaline solution, zinc is oxidized electrochemically or thermally to zinc oxide in the oxidation unit (3) with release of hydrogen, the suspension leaving the oxidation unit (3) is fed to a reduction unit (4), and zinc oxides formed in the course of oxidation in the reduction unit (4) are electrochemically reduced to zinc with release of oxygen, and then the suspension leaving the reduction unit (4) is fed back to the at least one oxidation unit (3).
Absstract of: WO2025081243A1
Disclosed herein is an electrochemical cell comprising a porous tubular support adapted to conduct electricity, a bore of the support defining an inner channel configured to receive a flow of a first fluid therethrough; a tubular outer electrode; an electrolyte comprising a porous membrane, the porous membrane separating the porous tubular support and the tubular outer electrode; current collectors for enabling an electrical current to flow through the cell; and a housing for the electrochemical cell, a space between the housing and the tubular outer electrode defining an outer channel configured to receive a flow of a second fluid therethrough.
Absstract of: EP4796521A1
0001 A method for producing methane according the present disclosure includes: producing methane from a raw material gas containing ammonia and carbon dioxide in the presence of a catalyst containing a carrier and a transition metal.
Absstract of: WO2025036406A1
An SOEC module and an SOEC water electrolysis hydrogen production device based on a multi-stack-core module. Said device comprises a steam generator, a mixer, an air heater and a plurality of SOEC modules; each SOEC module comprises a heat preservation shell provided with a hot air module inlet, a hydrogen-containing mixed steam module inlet, an oxygen-rich air module outlet and a product crude hydrogen module outlet, and a plurality of electrolytic cell stack cores arranged in the heat preservation shell; and each electrolytic cell stack core comprises a hot air single-stack inlet, a hydrogen-containing mixed steam single-stack inlet, an oxygen-rich air single-stack outlet and a product crude hydrogen single-stack outlet.
Absstract of: GB2634782A
A method for manufacturing a catalyst coating 200 for a recipient component of a PEM electrolyser and a blended catalyst. The method comprising the steps of: processing a pre-used catalyst-coated donor component 202, to recover a quantity of a catalyst 203; converting the catalyst recovered from the donor component into a powder, thus producing a low-ECSA (electrochemical active surface area) recycled catalyst powder; and blending the recycled catalyst powder 203 with a quantity of high-ECSA unrecycled catalyst powder 204 to form a blended catalyst powder 205. ECSA represents a value for the active surface area of the catalyst and is related to the BET (Brunauer-Emmett-Teller) value.
Absstract of: US2025171652A1
0000 Methods of continuously dispersing catalyst inks for use in coating processes are described. The catalyst ink is continuously mixed in a high shear mixing unit, and the mixed ink is sonicated in a sonication unit. Part of the sonicated catalyst ink is returned to the high shear mixing unit. The method provides continuous mixing and sonicating of the catalyst ink. The mixed and sonicated ink can then be applied to a substrate in a defined pattern.
Absstract of: WO2025082916A1
The invention relates to a unit (200) for producing hydrogen that comprises: - a stack (102) of solid oxide cells, - an air circuit (110), and a fuel circuit (120) passing through the stack (102); characterised in that the unit (200) is equipped with a stopping system comprising: - an inlet (202) and an outlet (204) for neutral gas, for circulating a predetermined neutral gas in the stack; - an inlet (206) and an outlet (208) for safety gas, for circulating a safety gas in the stack (102); and - a control module (210) for switching the stack (102) from the production configuration to the stopped configuration. The invention also relates to a method for controlling such a unit.
Absstract of: WO2025082675A1
The invention relates to a hydrogen-production plant comprising at least a first production line, comprising at least a first electrolysis device with a plurality of first electrolysis modules and comprising a first compressor device with a plurality of first compressor modules, and comprising a controller, comprising at least a schedule-creating module and a control module, wherein the schedule-creating module is designed for creating an activation schedule at least for the first electrolysis modules and for the first compressor modules on the basis of respective performance characteristics of the respective first electrolysis modules, respective performance characteristics of the respective first compressor modules and at least one predetermined optimization criterion, and wherein the control module is designed for activating the first compressor modules and the first electrolysis modules on the basis of the activation schedule created.
Absstract of: EP4796672A1
0001 Es wird ein Verfahren zur Herstellung von Wasserstoff unter Verwendung einer Elektrolyseanordnung (1000) mit einer Elektrolysevorrichtung (100) und einer Verdichtervorrichtung (500) vorgeschlagen, wobei der Elektrolysevorrichtung (100) ein Elektrolysewasser enthaltender Wasserstoffstrom (101) entnommen und zumindest zu einem Teil als Verdichtereinsatzstrom einer Verdichtung zugeführt wird. Hierbei ist vorgesehen, dass der Verdichtereinsatzstrom zumindest einen Teil des Elektrolysewasser des Wasserstoffstroms (101) umfasst und die Verdichtung unter Verwendung eines Turboverdichters (550) durchgeführt wird. Eine entsprechende Elektrolyseanordnung (1000) wird ebenfalls vorgeschlagen.
Absstract of: EP4796673A1
L'invention concerne un système destiné à assurer le fonctionnement sans interruption d'un électrolyseur de production d'hydrogène avec un compresseur à haute pression, comprenant un équipement de production d'hydrogène (1), un équipement de compression (4) de l'hydrogène dans des stockages à haute pression (5, 6), un réservoir tampon (3) de volume réduit, positionné entre l'équipement de production d'hydrogène (1) et l'équipement de compression (4), et un module de contrôle (7) configuré pour piloter le courant électrique alimentant l'équipement de production d'hydrogène (1) de manière à ce qu'il corresponde au débit de compression autorisé.
Absstract of: EP4541945A1
The invention relates to Device for electrochemical reversible dihydrogen storage (1), said device comprising: a sealed chamber (2) intended to receive an electrolytic media (3) and gaseous dihydrogen (4), connection means (5) suitable for connecting the seal chamber to a gas circuit (6) and at least one first electrode (7), and at least one second electrode (8), arranged within the sealed chamber. The at least one second electrode is suitable to oxidize dissolved gaseous dihydrogen, in the electrolytic media, and form protons and to reduce protons and form gaseous dihydrogen according to formula 1: H2 ↔ 2H+ + 2e-, formula 1. The at least one first electrode comprises at least one redox couple My/Mx, insoluble in the electrolytic media, said at least one redox couple being arranged to exhibit at least two oxidation states and being suitable to be reduced from an oxidized state My to a reduced state Mx, and conversely, according to formula 2: My + pe- ↔ Mx, formula 2, wherein x and y are oxidation number. An absolute potential difference |ΔE| between a redox potential of the couple H+/H2, for a predetermined electrolytic media and a predetermined pressure range of gaseous dihydrogen, and a redox potential of the at least one couple My/Mx is lower than or equal to 0.6 V.
Absstract of: WO2022002904A1
A separator for alkaline electrolysis comprising a porous support (10) and a first (20b) and second (30b) porous layer provided on respectively one side and the other side of the porous support, characterized in that the porous support has a thickness (d1) of 150 µm or less and the total thickness (d2) of the separator is less than 250 µm. Also a method is disclosed wherewith such a separator may be prepared.
Absstract of: WO2025165987A1
Methods and systems for hydrogen production from inert sodium salts are described herein. In an example method, steam is generated by a nuclear reactor power plant system. The steam is applied to sodium formate to facilitate one or more thermal and/or hydrothermal decomposition processes, thereby generating hydrogen. In the example method, sodium formate is generated by combining sodium hydroxide generated by an electrolysis process with sodium carbonate and/or sodium bicarbonate generated by a carbon capture process. Embodiments can be used to supply hydrogen storage facilities and/or for energy production.
Absstract of: WO2025053532A1
The present invention relates to a membrane electrode assembly manufacturing method comprising the steps of: (S1) forming a first catalyst layer on the other surface of a separation membrane having a first carrier film attached to one surface thereof; (S2) attaching a second carrier film to the other surface of the separation membrane on which the first catalyst layer is formed; (S3) removing the first carrier film attached to one surface of the separation membrane; and (S4) forming a second catalyst layer on one surface of the separation membrane from which the first carrier film is removed, wherein the second carrier film includes a first area corresponding to the first catalyst layer on the other surface of the separation membrane, and a second area, which is the remaining area that excludes the first area, and the second area of the second carrier film is coated with an adhesive on a surface facing the other surface of the separation membrane on which the first catalyst layer is formed.
Absstract of: GB2632092A
A method of producing hydrogen is described. The method comprises conducting a thermochemical reaction by contacting an active reagent and a basic aqueous solution, for example the hydrolysis of zinc in sodium hydroxide solution, which causes water from the basic aqueous solution to react with the active reagent and to produce hydrogen and a basic aqueous solution comprising an oxidised product. The method further comprises disposing the basic aqueous solution comprising the oxidised product in an electrochemical cell comprising an anode and a cathode, such that at least a portion of the cathode contacts the solution; and conducting an electrochemical reaction by applying a voltage across the anode and the cathode to produce hydrogen, oxygen and the active reagent. The active reagent comprises a metal or metal ion in a first oxidation state and the oxidised product comprises the metal or metal ion in a second oxidation state which is higher than the first oxidation state. Both the electrochemical and thermochemical reactions can be operated continuously.
Absstract of: WO2025071002A1
The present invention relates to a biogas-based electrochemical hydrogen extraction and separation system comprising a solid oxide fuel cell and a solid oxide water electrolysis cell, and a method for operating same. Specifically, the biogas-based electrochemical hydrogen extraction and separation system comprising a solid oxide fuel cell and a solid oxide water electrolysis cell is characterized by comprising: a fuel supply part for supplying biogas as fuel; a first reaction part for reforming the biogas supplied through the fuel supply part so as to generate a first reformed gas; a second reaction part for secondarily reforming the first reformed gas so as to generate a second reformed gas; a third reaction part for receiving the second reformed gas generated in the second reaction part and generating electricity; a fourth reaction part for receiving unreacted gas generated in the third reaction part and using the unreacted gas as fuel, and receiving steam generated in the third reaction part and generating hydrogen; and a power converter which receives the electricity generated in the third reaction part and supplies the electricity to the first reaction part and the fourth reaction part.
Absstract of: TR2026010714A2
Bu buluş; fotoelektrokimyasal hidrojen üretimi alanında, ulaşım sektörü, mobil uygulamalar ve yerleşik uygulamalarda kullanılabilecek hidrojen yakıtının üretimi amacıyla, bizmut vanadatın (BiVO?) fotoelektrokimyasal aktivitesinin artırılması için elektrokimyasal büyütme sırasında kobalt (Co) ve krom (Cr) ile birlikte katkılanması sonucu elde edilen Co ve Cr katkılı BiVO? yarı iletkeni ile ilgilidir.
Absstract of: US20260242957A1
0000 Herein discussed is an electrochemical reactor comprising a first electrode, wherein the first electrode is liquid when the reactor is in operation; a second electrode having a metallic phase and a ceramic phase, wherein the metallic phase is electronically conductive and wherein the ceramic phase is ionically conductive; and a membrane, wherein the membrane is positioned between the first and second electrodes and is in contact with the first and second electrodes, wherein the membrane is mixed conducting. Also discussed herein is a method of producing hydrogen or carbon monoxide comprising: (a) providing an electrochemical reactor having an anode, a cathode, and a membrane between the anode and the cathode, wherein the anode is liquid when the reactor is in operation and wherein the membrane is mixed conducting; (b) introducing a feedstock to the anode; (c) introducing a stream to the cathode, wherein the stream comprises water or carbon dioxide.
Absstract of: WO2026172325A1
The invention relates to an electrolyser for producing dihydrogen via a water electrolysis reaction in a basic medium, the electrolyser comprising a block (20) comprising: - N electrolysis cells (10) connected to one another between two electrode plates, i.e. an anode plate and a cathode plate, - a circuit for flow of fluid arranged to deliver water to the block of cells, and - a power supply (32) intended to deliver a current to the block of cells with a view to generating a water electrolysis reaction. The electrolyser also comprises: - a voltage generator (34) configured, when it is active, to apply a backup voltage (Ts) across the electrode plates of the block of cells and - a control means configured to activate the voltage generator (34) when it detects the power supply (32) has been interrupted.
Absstract of: US20260242965A1
An electrochemical cell stack includes a plurality of cells separated from one another by bipolar plates. Each cell is formed from two half-cells between which a membrane is arranged. The support frame describes a stepped shape with two adjacent cross-section regions. An edge of the membrane lies in a step formed by the cross-section regions and the porous transport layer of a half-cell extends into the step. The support frame includes at least one sealing arrangement and an electrically insulating sealing material. The sealing arrangement includes three sealing regions each having at least one sealing lip. A first sealing region and a second sealing region are assigned to the narrower of the two cross-section regions facing the membrane. A third sealing region on a side of the support frame facing away from the step and borders an opening of the support frame.
Absstract of: WO2026173620A2
The reverse water-gas shift (RWGS) reaction, which is used to convert H2 and CO2 into syngas (H2+CO) is performed using nonstoichiometric metal oxides. The RWGS reaction is performed in two separate steps, achieving both high conversion and high energy efficiency. The reaction may be performed in a single reactor or in multiple reactors arranged in series or parallel. This could be powered either by heat generated by distributed energy sources, concentrated solar thermal (CST) heat, heat from traditional energy generation sources, and/or waste electrical power.
Absstract of: AU2025229653A1
The invention relates to a method for controlling an electrolyzing plant (10), comprising: providing electric energy from an electric power network (32) with a network AC voltage; rectifying the network AC voltage by a rectifying device (50, 52, 54, 56, 58, 60, 62, 64); supplying water to the electrolyzing device (34, 36); providing an AC filter current flow by an active filter device (100), wherein the AC filter current flow is controlled such that it conforms to network regulations of the electric power network; measuring the network AC voltage by using a voltage sensor (128) which provides a respective voltage sensor signal; comparing the voltage sensor signal with a first reference voltage value providing a comparing result; depending on the comparing result, causing the active filter device (100) to emit electric energy to or to receive electric energy from the electric power network.
Absstract of: AU2025221792A1
The invention relates to a method for operating an electrolyzer (1) comprising an anode chamber (3) and a cathode chamber (5), in which water (H2O) is supplied as a reactant and hydrogen (H2) and oxygen (O2) are generated as product gases. On the anode side, the oxygen product gas, which also contains hydrogen as a foreign gas, is generated in a product flow out of the anode chamber (3) and is introduced into a horizontal anode-side collecting line (7) having a surrounding wall (11) and is removed via the collecting line (7), wherein water (H2O) is sprayed onto an inner surface of the surrounding wall (11) of the collecting line (7) so that the surrounding wall (11) is wetted with water and the inner surface is inerted. The invention additionally relates to an electrolyzer (1), in particular for carrying out the method.
Nº publicación: US20260242313A1 20/08/2026
Applicant:
TOPSOE AS [DK]
TOPSOE A/S
Absstract of: US20260242313A1
0000 A methanol plant and a process for the production of methanol is provided. A hydrogen recovery section receives off-gas stream from the methanol synthesis section and outputs a hydrogen-rich stream, which is recycled upstream the methanol synthesis section.
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