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: 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: US2025215590A1
An object of the present invention is to provide an electrolyte membrane having a good durability when performing water electrolysis. The gist of the present invention is an electrolyte membrane including: a first electrolyte layer having a first main surface and a second main surface; and a second electrolyte layer provided on the first main surface of the first electrolyte layer; wherein the first electrolyte layer has a thickness of 40 μm or more and 250 μm or less, and contains a polymer electrolyte; and wherein the second electrolyte layer contains a polymer electrolyte and carbon particles.
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: 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: US2025219549A1
A system comprises at least one transformer for galvanically isolating the system from an electrical power grid and adapting an input voltage level associated with an alternating current received from the electrical power grid. A converter unit connected to the transformer is configured to convert the alternating current into a direct current output between a positive pole and a negative pole. The converter unit comprises at least one modular multilevel converter comprising at least two converter branches. Each branch comprises a converter cell and an inductor. One branch is connected from an AC line of the transformer to the positive pole and another branch is connected from the AC line to the negative pole. An electrolyser unit may be arranged between the positive and negative poles, and a control unit may be configured to control the direct current output based on a reference value.
Resumen de: US2025214034A1
Hydrogen gas purifier electrochemical cells, systems for purifying hydrogen gas, and methods for purifying hydrogen gas are provided. The cells, systems, and methods employ double membrane electrode (DMEA) electrochemical cells that enhance purification while avoiding the complexity and cost of conventional cells. The purity of the hydrogen gas produced by the cells, systems, and methods can be enhanced by removing at least some intermediate gas impurities from the cells. The purity of the hydrogen gas produced by the cells, systems, and methods can also be enhanced be introducing hydrogen gas to the cells to replenish any lost hydrogen. Water electrolyzing electrochemical cells and methods of electrolyzing water to produce hydrogen gas are also disclosed.
Resumen de: KR20250100494A
본 발명은 암모니아를 전기분해하여 수소를 추출하는 수소 추출 시스템, 상기 수소 추출 시스템의 외부에 장착되어 가스 누출을 감지하는 가스 감지기, 상기 가스 감지 시스템과 연동되어 가스 누출 여부를 표시하는 가스 누출 표시기, 및 상기 가스 감지 시스템으로부터 가스 누출 신호를 전달받아 수소 추출 시스템의 작동을 비상 정지시키는 제어기를 포함하는 비상 감지 시스템에 관한 것이다.
Resumen de: KR20250100495A
본 발명은 암모니아 전기분해를 이용한 수소 생산 시스템에 있어서, 상기 수소 생산 시스템은 암모니아가 공급되는 혼합기; 상기 혼합기로부터 전달받은 암모니아를 수소와 질소로 전기분해하는 전해 셀; 및 상기 수소 및 상기 질소에 포함된 암모니아를 분리하는 하나 이상의 유체 분리기를 포함하며, 상기 유체 분리기 내의 미반응 암모니아 기체를 물에 용해시켜 외부로 배출하는 암모니아 제거 장치가 구비되어 안정성이 향상된 수소 생산 시스템에 관한 것이다.
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: WO2025140933A1
A method of transporting hydrogen comprising: forming an alcohol from hydrogen and carbon dioxide; transporting said alcohol; breaking down said alcohol to form carbon dioxide and hydrogen; using said hydrogen as a fuel; and capturing said carbon dioxide to transport for reuse in generating more alcohol.
Resumen de: DE102024126314A1
Elektrolysesystem (20) zur Gewinnung von Wasserstoff, mit mindestens einer Elektrolysevorrichtung (23), die zur Gewinnung des Wasserstoffs aus Prozesswasser mit Hilfe von elektrischem Strom eingerichtet, mit einem von dem Prozesswasser durchströmten Prozesswasserkreislauf (21), in den zusätzlich zu der mindestens einen Elektrolysevorrichtung (23) ein Wärmetauscher (24) eingebunden ist, der ferner in einen Kühlwasserkreislauf (22) eingebunden ist, und der eingerichtet ist, das Prozesswasser dadurch bedarfsweise zu kühlen, dass Wärme des Prozesswassers über den Wärmetauscher (24) auf durch den Kühlwasserkreislauf strömendes Kühlwasser übertragbar ist, wobei dem Prozesswasserkreislauf (21) ferner mindestens eine Heizeinrichtung (26) zugeordnet ist, die eingerichtet ist, das Prozesswasser bedarfsweise zu erwärmen.
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: US2025215587A1
The present invention relates to a non-combustion heat source preferably integrated with a net-positive electricity hydrogen production system and integral feedforward control system maximizing value creation by enabling superior high-radiant heat transfer and energy efficiency while minimizing carbon dioxide footprint. The feedforward control system further enhances broad system performance including determining optimal combustion emissivity and waste heat recovery operations.
Resumen de: US2025215588A1
Described are a gas-permeable electronically conductive plate for use as porous transport layer for an electrolyzer and a process for preparing said gas-permeable electronically conductive plate. a building unit for an electrolyzer, and an electrolyzer.
Resumen de: US2025215591A1
Electrolysis techniques and system implementations are disclosed comprising a plurality of reactors, each comprising electrolysis electrodes and configured to carry out a sequence of phases of an electrolysis process phase-shifted with respect to a sequence of phases of the electrolysis process carried out by at least another one of said plurality of reactors, one or more power sources for driving the electrolysis processes carried out by the plurality of reactors, and a control system configured to monitor changes in a power capacity of at least one of the one or more power sources and based thereon perform at least one of the following: (i) activate or deactivate one or more of the electrolysis processes carried out by the plurality of reactors, (ii) adjust a time duration of at least one of the phases of the electrolysis process; (iii) adjust the power supplied to at least one of the plurality of reactors from the one or more power sources; and/or (iv) adjust, remove or introduce, at least one phase of the electrolysis process.
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: 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: 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: 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: 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: 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.
Nº publicación: DK202370622A1 02/07/2025
Solicitante:
LIQUID WIND AB [SE]
Liquid Wind AB
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.