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790
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Última actualización
15/07/2025 [07:02:00]
Resultados 50 a 75 de 790
Resumen de: US2025219421A1
An HVDC system comprising an AC/DC converter sub-system electrically connected to a renewable energy equipment and a VSC sub-system is provided. A method comprises operating the renewable energy equipment to function as a voltage source to energize an HVDC link between the AC/DC converter sub-system and the VSC sub-system; operating the VSC sub-system as a voltage source to energize an electrical load electrically connected thereto; if it is determined the power production rate of the renewable energy equipment is not within a designated parameter, operating the equipment to follow the VSC sub-system such that controlling the AC electric power output influences the power production rate. If it is within the designated parameter, operating the VSC sub-system to follow the renewable energy equipment such that the VSC sub-system adjusts the properties of its AC electric output to match the properties of the electric power generated by the renewable energy equipment.
Resumen de: US2025215331A1
Production of fuels from low carbon electricity and from carbon dioxide by the use of a solid oxide electrolysis cell (SOEC) and Fischer-Tropsch is shown. Fischer-Tropsch is an exothermic reaction that can be used to produce steam. Steam produced from the Liquid Fuel Production (LFP) reactor system, where the Fischer-Tropsch reaction occurs, is used as feed to the SOEC. The higher temperature steam improves the efficiency of the overall electrolysis system. The integration of the LFP steam improves the efficiency of the electrolysis because the heat of vaporization for the liquid water does not have to be supplied by the electrolyzer.
Resumen de: US2025215576A1
Systems and methods for increased oxygen output from an electrolyzer system are provided. The electrolyzer system includes a water storage tank. The electrolyzer system also includes an electrolyzer in fluid communication with the water storage tank and configured to produce oxygen and hydrogen from water e.g., (H2O). The electrolyzer system also includes one or more pressure isolating components configured to increase the oxygen output pressure of the system by pressure isolating the water storage tank from the electrolyzer stack.
Resumen de: AU2024233949A1
An electrolysis cell according to the present disclosure is provided with: a first separator; a second separator; an anion exchange membrane disposed between the first separator and the second separator; a negative electrode disposed between the first separator and the anion exchange membrane; and a positive electrode disposed between the second separator and the anion exchange membrane. The first separator has a flow path for supplying an electrolyte solution to the negative electrode, and hydrogen and hydroxide ions are produced at the negative electrode by consuming at least some of the electrolyte solution supplied from the flow path. The second separator does not have a flow path for supplying the electrolyte solution to the positive electrode, and oxygen and water are produced at the positive electrode from the hydroxide ions that have come from the negative electrode through the anion exchange membrane, in a state where the electrolyte solution is not supplied to the positive electrode.
Resumen de: AU2023300562A1
Bipolar plates (1) adapted for use in an electrolyser cell stack (4) and wherein each plate comprises a plate midplane (2) whereby the plate (1) comprises spaced apart uniform spacers (7) extending in opposed directions from the midplane (2). All spacers (7) are arranged along concentric circles (8) in the midplane (2) with spacers (7) alternatingly protruding in opposite directions relative to the midplane (2) along each concentric circle (8) and an even number of spacers (7) are provided in each circumferential circle (8), apart from an innermost circle (9) which comprises a single spacer (7).
Resumen de: WO2025143640A1
Disclosed is a hydrogen gas purification method for increasing the recovery rate and purity of purified hydrogen gas. According to one aspect, provided is a hydrogen gas purification method comprising purifying a mixed gas produced by an electrolysis method and containing chlorine gas and hydrogen gas.
Resumen de: WO2025143151A1
Provided are a solid polymer electrolyte membrane having superior chemical durability, a membrane electrode assembly, and a water electrolysis device. The solid polymer electrolyte membrane according to the present disclosure comprises: a first membrane that contains a fluorine-containing polymer having an ion exchange group, and cerium oxide; and a second membrane that contains a fluorine-containing polymer having an ion exchange group and has a cerium oxide concentration lower than that of the first membrane. When the ratio of the thickness of the first membrane to the total thickness of the first membrane and the second membrane at an end part of the solid polymer electrolyte membrane is defined as ratio X, and the ratio of the thickness of the first membrane to the total thickness of the first membrane and the second membrane at the center of the solid polymer electrolyte membrane is defined as ratio Y, ratio X is greater than ratio Y.
Resumen de: WO2025143145A1
The present invention provides: a solid polymer electrolyte membrane which is excellent in terms of low gas permeability; a membrane electrode assembly; and a water electrolysis device. A solid polymer electrolyte membrane according to the present disclosure comprises: a first membrane which contains a fluorine-containing polymer that has an ion exchange group, and a platinum-containing material; and a second membrane which contains a fluorine-containing polymer that has an ion exchange group, and which has a lower concentration of the platinum-containing material than the first membrane. If a ratio X is the ratio of the thickness of the first membrane to the total thickness of the thickness of the first membrane and the thickness of the second membrane at an end of the solid polymer electrolyte membrane, and a ratio Y is the ratio of the thickness of the first membrane to the total thickness of the thickness of the first membrane and the thickness of the second membrane at the central part of the solid polymer electrolyte membrane, the ratio X is greater than the ratio Y.
Resumen de: WO2025143156A1
Provided is a solid polymer electrolyte membrane that resists tearing and, when employed in a water electrolysis device, resists the generation of pinholes. The solid polymer electrolyte membrane contains an ion-exchange group-bearing fluoropolymer and a woven fabric composed of a warp and a weft. When the solid polymer electrolyte membrane is observed from the direction normal to a surface of the solid polymer electrolyte membrane, the standard deviation on the area of regions delimited by the warp and the weft is 0.10 × 104 to 2.0 × 104 μm2.
Resumen de: WO2025140991A1
Systems and methods for increased oxygen output from an electrolyzer system are provided. The electrolyzer system includes a water storage tank. The electrolyzer system also includes an electrolyzer in fluid communication with the water storage tank and configured to produce oxygen and hydrogen from water e.g., (H2O). The electrolyzer system also includes one or more pressure isolating components configured to increase the oxygen output pressure of the system by pressure isolating the water storage tank from the electrolyzer stack.
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: DK202330403A1
An alkaline electrolyser comprising a stack (17) of electrolytic cells (1) is used for producing hydrogen gas (8). Purified hydrogen gas and purified oxygen gas is used for purging the corresponding cathode and anode compartments (5, 6) for preventing buildup of dangerous gas mixtures by gas crossover during stop, before starting, or when running production low.
Resumen de: DK202370622A1
The invention relates to method for recovering carbon capture solvent from reactant streams in a power-to-X plant for methanol production, said power-to-X plant comprising an electrolyzer, a unit capturing COₓ with a carbon capture solvent, a syngas compressor and a methanol reactor, wherein the electrolyzer creates a H₂ stream and wherein the unit capturing COₓ creates a stream of COₓ. The carbon capture solvent is returned to the unit capturing COₓ.
Resumen de: DK202370621A1
The invention relates to a method for and a plant capable of abruptly shifting the electricity consumption in a Power-to-X methanol production facility. The facility comprising: - An electrolysis unit - A carbon capture unit - A compressor for compressing a stream of H₂ and a stream of COₓ into a syngas for methanol production - A methanol reactor having an operational pressure and comprising a catalyst for production of methanol - A recirculation system for recirculating unreacted H₂ and/or COₓ - A rerouting system for rerouting the stream of COₓ Where the ratios in changes in the streams are within range 0.2 to 5 for a time period t, where t is between 0.3 and 30 seconds.
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: EP4574255A1
In a method of preparing an ammonia decomposition catalyst according to embodiments of the present disclosure, a mixture of a metal oxide including lanthanum and a heterogeneous metal and aluminum oxide is prepared, the mixture was subj ected to steam treatment to form a carrier, and an active metal is supported on the carrier to prepare an ammonia decomposition catalyst. The ammonia decomposition catalyst according to embodiments of the present disclosure is prepared by the above-described preparation method.
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: 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: 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: WO2025064007A1
A method for producing a hydrogen product having a carbon intensity less than about 0.45 kg C02e / kg H2 is provided. The method includes the steps of converting water to oxygen and the hydrogen product through an electrolysis process, providing at least some, and substantially all, of the required energy for the electrolysis process from a biomass power plant, and processing one or more flue gas streams from the biomass power plant in a carbon capture unit to reduce CO2emissions. The energy produced from the biomass power plant may comprise one or more of electricity, steam used as process steam in the electrolysis process, steam used as thermal energy in the electrolysis process, and steam used to power a mechanical drive for one or more compressors, pumps, or other motors generating shaft torque in the electrolysis process.
Resumen de: MA66617A1
The co-generation of hydrogen 11 from water 8 produced during pressure driven water desalination/filtration processes, such as reverse osmosis, forward osmosis, pressure retarded osmosis or ultrafiltration. A small part of feed, raw saline solution and/or permeate involved in a desalination/filtration processes is subjected to electrolysis thereby splitting the water to produce hydrogen. This is achieved by the provision of novel RO type semi-permeable membranes and UF type membrane that incorporate electrodes 9, 10 within the membrane to allow splitting of the water via electrolysis.
Resumen de: FR3157228A1
CATALYSEUR NOTAMMENT DE CRAQUAGE DE L’AMMONIAC, PROCEDE DE PREPARATION DU CATALYSEUR ET PROCEDE DE SYNTHESE D’HYDROGENE Catalyseur pour la décomposition de l’ammoniac en hydrogène et azote, ledit catalyseur comprenant au moins du ruthénium, de l’oxyde de cérium mésoporeux et au moins un oxyde choisi parmi les oxydes de cobalt, de nickel et de fer, de préférence l’oxyde de nickel et procédé pour produire de l’hydrogène à partir d’ammoniac comprenant les étapes suivantes dans cet ordre : activation d’au moins un catalyseur selon l’invention à une température allant de 300°C à 600°C, sous un flux d’un gaz réducteur ; mise en contact dudit catalyseur activé avec un gaz à traiter comprenant de l’ammoniac à une température allant de 200°C à 800°C, et à une pression allant de la pression atmosphérique à 100 bar. Figure pour l’abrégé : Fig. 3
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
Nº publicación: KR20250096209A 27/06/2025
Solicitante:
에스케이이노베이션주식회사
Resumen de: EP4574255A1
In a method of preparing an ammonia decomposition catalyst according to embodiments of the present disclosure, a mixture of a metal oxide including lanthanum and a heterogeneous metal and aluminum oxide is prepared, the mixture was subj ected to steam treatment to form a carrier, and an active metal is supported on the carrier to prepare an ammonia decomposition catalyst. The ammonia decomposition catalyst according to embodiments of the present disclosure is prepared by the above-described preparation method.
BOPI
Sede Electrónica
