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966
resultados
Última actualización
03/07/2025 [07:04:00]
Resumen de: GB2636885A
An electrolyser 10 which provides a hydrogen gas containing stream and a separate oxygen gas containing stream from an aqueous electrolyte is described. The electrolyser comprises a hollow locating member 32 defining a fluid conduit for receiving an electrolyte, where the hollow locating member has at least one opening 42. A fluid pump 26 is pumps electrolyte into and through the fluid conduit of the hollow locating member 32. The electrolyzer cell 12 has a stacked arrangement on the locating member 32. The stacked arrangement comprises at least one electrolysis cell 12. Each cell 12 comprises an anode 14 having a first side 11 and a second opposed side 13; and a cathode 16 having a first side 15 and a second opposed side 17, in which the first side of the anode 11 is positioned adjacent the first side of the cathode 15. A reaction chamber is defined between the first side of the anode and the first side of the cathode, in which the reaction chamber 18 is in fluid communication with the at least one opening 42 of the hollow locating member 32. Each cell 12 further comprise a magnet 30 positioned adjacent the second side of the anode 13; a first gas collection chamber 34a positioned adjacent the second side of the anode 13, in which the first gas collection chamber 34a is in fluid communication with the reaction chamber 18; and a second gas collection chamber 34b positioned adjacent the second side of the cathode 17, in which the second gas collection chamber 34b is in fluid c
Resumen de: WO2024041751A1
The invention relates to a method and a device for producing a cracked gas (7) comprising hydrogen and nitrogen from an ammonia-rich input (1) that is more than 50% ammonia by volume, wherein ammonia present in the ammonia-rich input (1) is cracked in a cracker furnace (C) with catalytic assistance at a cracking pressure above 5 bar and a cracking temperature of at least 500°C in order to obtain the cracked gas (7) comprising hydrogen and nitrogen. The invention is characterised in that the ammonia-rich input (1) undergoes catalytically assisted pre-cracking (V), during which some of the ammonia present in the input (1) is separated into hydrogen and nitrogen and an input (5) comprising ammonia for the cracker furnace (C) is obtained.
Resumen de: GB2636726A
A hydrogen boiler comprises a self-producing hydrogen system, the hydrogen is produced by electrolysis. A cut off sensor 7.18 is attached to the system to prevent hydrogen leaks and a pressure regulator to keep the gas flow constant. A pressure cut off 7.13 turns off the hydrogen production when the tank is full. A flashback arrestor 8.6 prevents furnace flashback to the main oxyhydrogen production tank 2. The system may be powered by solar panels or standard AC power. The hydrogen is combusted in a furnace 3, which includes a heat exchanger 3.15 connected to the central heating system; heated water is then circulated to the radiators and hot water system. Water produced by the combustion of hydrogen is recovered and returned to the electrolyser. The system may also provide additional hot water systems 9 or a hot air system using a second electrolyser and furnace.
Resumen de: GB2636681A
An electrolyser system (10) is described. The system (10) comprises at least one electrolyser (20), where the electrolyser (20) comprises at least one steam inlet (41) and at least one off-gas outlet (38; 39). A turbocharger (62) is also present for compressing off-gas from the electrolyser (20). The turbocharger (62) comprises a drive fluid inlet, a drive fluid outlet, a compression fluid inlet, a compressed fluid outlet, a compressor (13) and a turbine (12). The turbine (12) is configured to drive the compressor (13). The drive fluid outlet of the turbocharger (62) is fluidically connected to the at least one steam inlet (41) of the electrolyser (20). The at least one off-gas outlet (38; 39) of the electrolyser (20) is fluidically connected to the compression fluid inlet of the turbocharger (62). The system (10) can further comprise a steam source fluidically connected to the drive fluid inlet of the turbocharger (62) for powering the turbine (12) using pressurised steam.
Resumen de: AU2023327787A1
The invention provides an electrolytic cell, comprising: a working electrode; a counter electrode; a liquid electrolyte in contact with a working surface of the working electrode; an acoustically transmissive substrate comprising at least a piezoelectric substrate portion; one or more conductive electrodes coupled to the piezoelectric substrate portion and configured to propagate a high frequency acoustic wave having a frequency of at least 1 MHz across the acoustically transmissive substrate when electrically actuated; and one or more power supplies configured (i) to apply a potential between the working electrode and the counter electrode sufficient to electrolytically react a species in the liquid electrolyte, thereby producing an electrolytic reaction product proximate the working electrode, and (ii) to electrically actuate the one or more conductive electrodes, wherein the working electrode is either located on the acoustically transmissive substrate or spaced apart from the acoustically transmissive substrate by the liquid electrolyte, and wherein propagation of the high frequency acoustic wave across the acoustically transmissive substrate in operation of the electrolytic cell stimulates the liquid electrolyte, thereby increasing the production efficiency of the electrolytic reaction product.
Resumen de: CN115485066A
A catalytic material and a method of making the catalytic material are described. The use of the catalytic material in catalyzing ammonia decomposition processes is also described. The catalytic material comprises a metal oxide and a metal M selected from the group consisting of Ru, Fe, Co, Mo, and mixtures of two or more thereof, and is particularly active in the catalytic decomposition of ammonia, even at low temperatures.
Resumen de: AU2023391802A1
The present invention pertains to an ammonia decomposing catalyst and a method for producing same. More specifically, the present invention pertains to: an ammonia decomposing catalyst containing an MgAl
Resumen de: WO2025131626A1
The invention relates to an electrolysis assembly (10) comprising a stack assembly (16). The stack assembly (16) is equipped with precisely one reactant gas manifold structure (66) in order to provide reactant gas to the electrolysis cells (18) and precisely one product gas manifold structure (68) in order to discharge product gas from the electrolysis cells (18). The stack assembly (16) has a reactant gas opening for introducing reactant gas into the reactant gas manifold structure (66) and a product gas opening for discharging product gas out of the product gas manifold structure (68). The reactant gas manifold structure (66) and the product gas manifold structure (68) are formed within the stack assembly (16), in each case by means of manifold openings introduced into the interconnectors, wherein between the membrane electrode assembly and the interconnector of at least some of the electrolysis cells is a reactant gas line structure designed to conduct reactant gas out of the reactant gas manifold structure along the hydrogen side of the membrane electrode assemblies and to the product gas manifold structure, and at least some of the membrane electrode assemblies have an oxygen-permeable structure on the oxygen side, said oxygen-permeable structure being positioned and designed such that oxygen released on the oxygen side of the membrane electrode assembly can be discharged into the interior of the housing (12).
Resumen de: WO2025135328A1
The present invention relates to a water electrolysis system comprising: a hydrogen (H2) removal device; and an oxygen (O2) removal device, wherein the hydrogen (H2) removal device removes, from an oxygen (O2) stream, hydrogen (H2), and the oxygen (O2) removal device removes, from a hydrogen (H2) stream, oxygen (O2). By removing hydrogen (H2) and oxygen (O2) from the respective gas streams, the likelihood of explosion accidents during the movement of the gas streams is remarkably reduced, and the purity requirements of various industrial gases can be satisfied without a separate purification process.
Resumen de: WO2025133594A1
An energy system (100) for supplying electricity to a load (108) and a method of using said system are provided, the system comprising renewable electricity generation capacity (102) comprising solar and wind generation capacity, a battery (110) with a maximum electricity storage capacity sufficient to meet the mean load for up to 1 hr, an electrolyser (112) configured for hydrogen gas production and capable of operating at from 0.3 to 0.8 times the maximum output of the renewable electricity generation capacity; and gas storage (114) configured to receive the hydrogen gas; wherein the renewable electricity generation capacity is in electrical communication with the electrolyser via the battery and wherein the system is configured to allow electrical communication to the load such that electrical output not consumed by the load is used to generate hydrogen gas.
Resumen de: WO2025132521A1
The present invention refers to an electrochemical system comprising: i. an electrolyte, preferably a liquid electrolyte, more preferably an aqueous electrolyte, comprising a stabilizing anion, wherein said electrolyte comprises > 10 mol/mol % of water; ii. a redox mediator electrode comprising Ga(0) or alloys thereof; iii. a cathode; iv. an anode; and v. a wavefunction generator to alternately polarize the electrical connection between the redox mediator electrode and the cathode or anode; wherein the redox mediator electrode is electrically connected with the cathode and the anode, provided that the anode and the cathode are not electrically connected with each other. The gallium-based redox mediator electrode permits the nearly complete reversibility between dissolution and electroplating of gallium, thus cathodic and anodic reactions can be carried out in an alternating manner by electrically connecting the redox mediator electrode with the cathode or the anode. The present invention also refers to a method for the electrochemical production of H2, and oxidized species, such as O2 and/or Cl2 or H+, with the electrochemical system of the invention. Therefore, the present invention may find application in fuel production, e.g. in combination with fuel cells or internal combustion engines, or in chemical reactions such as hydrogenation reactions, reversible H2 production and H2 oxidation, hydrotreating reactions, hydrocracking reactions, hydroisomerisation reactions, oil
Resumen de: WO2025132365A1
The invention relates to a device/method for capturing/converting CO2, comprising/using a CO2 capturing unit (2), a water electrolysis unit (5), an RWGS unit (8), an FT unit (13), a unit for converting by-products into syngas (28) and a hydrogen unit (20), in which a carbon dioxide separation unit (34) is arranged to: treat a first syngas (12) and a second syngas (29); produce a gaseous effluent depleted in carbon dioxide (18) and a gaseous effluent rich in carbon dioxide (35); and recycling the gaseous effluent rich in carbon dioxide (35) to the inlet of the RWGS section (8).
Resumen de: WO2025131874A1
The invention relates to a system (120) consisting of at least two catalyzers (100), in particular for use in electrochemical cell devices (10), preferably fuel cell devices (10), wherein the at least two catalyzers (100) are fluidically connected in series, and each of the at least two catalyzers (100) has a catalytically active material (108), each of which is provided on a main part (102). At least one first catalyzer (100a), which is arranged first in the flow direction, has a protective material (110), which is designed to bind chromium and is provided on the main part (102). According to the invention, the first catalyzer (100a) is designed to oxidize hydrogen, and a second catalyzer (100b), which is arranged after the first catalyzer (100a) in the flow direction, is designed to oxidize methane.
Resumen de: WO2025131721A1
The invention relates to a method for producing an electrolysis assembly comprising at least one housing with an interior, and with at least one stack assembly disposed in the interior of the housing, the stack assembly comprising a plurality of electrolytic cells stacked in a stacking direction, at least some of the electrolytic cells each comprising a membrane electrode assembly and an interconnector, and the membrane electrode assembly and the interconnector each having an oxygen side and a hydrogen side, wherein, in a preparation step for producing membrane electrode assemblies, at least one pasty layer is applied to each of the two surfaces of an electrolyte membrane, at least one of the layers on one surface being used to form a first electrode formed on the hydrogen side of the membrane electrode assemblies and at least one of the layers on the other surface being used to form a second electrode formed on the oxygen side of the membrane electrode assemblies, in a preparation step a seal material comprising glass and/or glass-ceramic is applied to the interconnectors, in an assembling step the prepared interconnectors and membrane electrode assemblies are stacked in alternation to form a stack, and in an assembling step the stack is joined under the action of thermal energy and of a mechanical clamping force which is applied to the stack inwardly in the stacking direction.
Resumen de: WO2025131661A1
The invention relates to an electrolysis assembly comprising at least one housing with an interior and at least one stack assembly in the interior of the housing. The stack assembly comprises a plurality of electrolysis cells stacked in a stacking direction, and at least some of the electrolysis cells comprise a respective membrane electrode assembly and a respective interconnector, wherein the membrane electrode assembly and the interconnector each have an oxygen side and a hydrogen side, and at least some of the electrolysis cells have contact elements between the membrane electrode assembly and the interconnector, said contact elements being designed to be viscous in an operating state of the electrolysis assembly and solid in a rest state of the electrolysis assembly.
Resumen de: WO2025131585A1
The invention relates to a hydrogen production facility (222) comprising a hydrogen recirculation assembly (100, 200). The hydrogen production facility (222) comprises at least one main compressor (226, 426) which is fluidically connected to at least one electrolyzer (224, 424) via a main hydrogen flow fluid network (232), wherein the hydrogen recirculation assembly (100, 200) comprises a first fluid inlet (102, 202) which can be connected to a first hydrogen leakage point (240) of the hydrogen production facility (222) and which is connected to at least one collecting container (106, 206) of the hydrogen recirculation assembly (100, 200) via at least one first fluid connection (110, 210); a second fluid inlet (104, 204) which can be connected to a second hydrogen leakage point (242) of the hydrogen production facility (222) and which is connected to the collecting container (106, 206) via at least one second fluid connection (112, 212); at least one recirculation compressor (108, 208) which is connected to the collecting container (106, 206) via at least one third fluid connection (114), and at least one first fluid outlet (118, 218) which can be connected to a main hydrogen flow fluid network (232) of the hydrogen production facility (222) and which is connected to the recirculation compressor (108, 208) via at least one fourth fluid connection (116).
Resumen de: WO2025131283A1
The invention relates to a method, a system and the use thereof. According to the invention, hydrogen and oxygen are generated by means of a water-borne platform and, for example, the hydrogen and oxygen so produced are transported ashore and compressed and/or further compressed there.
Resumen de: WO2025131681A1
The invention relates to an electrolysis assembly comprising a stack assembly. At least some of the interconnectors are designed in the form of substantially rectangular single-layer sheet-metal structures, the first face of which defines the hydrogen side of the interconnector and the second face of which defines the oxygen side of the interconnector, wherein the thickness of the interconnectors in the form of sheet-metal structures ranges from 0.3 to 0.8 mm, and at least some of the interconnectors have a reactant gas manifold opening in a first edge region in order to conduct reactant gas and a product gas manifold opening in a second edge region lying opposite the first edge region in order to conduct product gas. Between the membrane electrode assembly and the interconnector of at least some of the electrolysis cells is a reactant gas line structure designed to conduct reactant gas out of the reactant gas manifold structure along the hydrogen side of the membrane electrode assemblies and to the product gas manifold structure, and the reactant gas line structure has a plurality of flow channels, each of which is laterally delimited by means of two mutually spaced channel webs, at least some of the channel webs having, on average, an edge steepness of >= 85° at at least one surface which delimits a flow channel.
Resumen de: WO2025137083A1
An electrolyzer for gaseous production such as hydrogen gas includes an oscillating electrode driven at a natural frequency of the gaseous bubbles improves output by readily removing the gaseous bubble product from the electrode surface, thereby exposing greater electrode surface area for subsequent electrolysis reactions. A natural frequency of the gaseous product determines an oscillation frequency with which to drive the electrode accumulating the gaseous product, such as hydrogen bubbles, to agitate and release the bubbles which then rise to the surface of the liquid filled containment. Integrating oscillation logic for agitating the otherwise stationary electrode or cathode in a PEM water electrolyzer improves hydrogen production by readily evacuating the generated hydrogen to free up the electrode area for additional electrolysis reactions.
Resumen de: WO2025135565A1
The present invention relates to a composite water electrolysis system using nuclear power plant heat and electrical energy, and, to a composite water electrolysis system for receiving heat energy and electrical energy generated in each of a plurality of SMRs, the system comprising: a heat energy storage hub for storing the heat energy generated in each of the plurality of SMRs; an electrical energy storage hub for storing electrical energy generated in each of the plurality of SMRs; and a composite hydrogen production unit, which receives heat and electricity from the heat energy storage hub and the electrical energy storage hub so as to generate hydrogen and oxygen. According to one embodiment, technologies such as hydrogen production through high-temperature water electrolysis, low-temperature water electrolysis, and ammonia decomposition are diversified, hydrogen and oxygen produced through high-temperature water electrolysis are in a high-temperature state, and the waste heat energy discarded when hydrogen and oxygen are cooled to a low temperature in order to be stored can be used as an additional heat source of low-temperature water electrolysis and ammonia hydrogen decomposition devices.
Resumen de: US2025205696A1
Described herein relates to a method that may be used for synthesizing a bifunctional electrocatalyst for electrochemical water splitting. The method may involve anodically converting an electrodeposited iron-nickel alloy film into an iron-nickel-oxygen nanofilm, followed by sequential phosphorization and/or selenylation treatments via chemical vapor deposition to form a quaternary iron-nickel phosphoselenide nanoporous film. This self-supported catalyst can facilitate both hydrogen evolution and oxygen evolution reactions, improving electrolysis efficiency. The inclusion of selenium may enhance electrical conductivity and stabilize catalytic performance, while the nanoporous structure can optimize mass transport. The film may be used as both anode and cathode in a two-electrode electrolyzer, enabling hydrogen production from pure water or seawater. Notably, the catalyst can demonstrate high turnover frequency and low overpotential, potentially surpassing conventional noble-metal-based catalysts. The system's stability under prolonged operation may underscore its potential for scalable hydrogen generation, reducing reliance on fossil fuels and advancing renewable energy applications.
Resumen de: US2025205656A1
An apparatus, includes: a first raw material supply unit 110 including a filter housing 111, a supply fan 112, a flow regulator 113, an electronic valve 114, and an air supply line 115, wherein the supply fan 112 is operated to suck in external air, in the process, the HEPA filter (not shown) mounted inside the filter housing 112 filters fine dust and adjusts the air supply flow rate from the flow regulator 113 to the appropriate flow rate and supplies through the supply line 115 to the ion generator 200; a second raw material supply unit 120 including a pressure regulator 122, a flow regulator 123, an electronic valve 124, and an air supply line 125.
Resumen de: US2025206621A1
A silica material has a substrate containing silicon dioxide, and has a sulfonate group on at least a surface of the substrate, or is obtained by bringing a sulfonating agent into contact with a substrate containing silicon oxide.
Resumen de: US2025207273A1
A water electrolysis electrode includes a conductive substrate and a layered double hydroxide layer. The conductive substrate has a surface including nickel having a plane orientation. The layered double hydroxide layer includes a layered double hydroxide including two or more transition metals. The layered double hydroxide layer is disposed on the surface.
Nº publicación: US2025207278A1 26/06/2025
Solicitante:
TORAY IND INC [JP]
TORAY INDUSTRIES, INC
Resumen de: US2025207278A1
An object of the present invention is to provide a water electrolysis method capable of maintaining a high electrolysis efficiency. The present invention proposes a water electrolysis method, including supplying water to an electrolysis cell whose interior is divided into an anode and a cathode by an electrolyte membrane, and electrolyzing the water, to generate oxygen at the anode and hydrogen at the cathode, wherein the electrolyte membrane includes: a first layer containing a polymer electrolyte; and a second layer containing carbon particles, and provided on the side of the cathode of the first layer.
BOPI
Sede Electrónica
