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1053
results.
Updated on
23/08/2026 [06:57:00]
Results 975 to 1000 of 1053
Absstract of: DE102024212190A1
Die Erfindung betrifft ein Verfahren zum Betrieb einer Elektrolyseanlage (10), die einen Elektrolyseur (1) mit einer Vielzahl von elektrisch in Serie geschalteten Elektrolysezellen (5) aufweist, wobei Prozesswasser (H2O) den Elektrolysezellen (5) zugeführt und die Elektrolysezellen (5) mit einem Strom beaufschlagt werden, wobei als Produktgase Wasserstoff (H2) und Sauerstoff (O2) erzeugt werden, und wobei das Prozesswasser (H2O) in einem Prozesswasserkreislauf (31) geführt wird, wobei die Temperatur (TP) des Prozesswassers (H2O) geregelt wird, indem als Temperatursollwert (TSET) die Vorlauftemperatur (TIN) des Prozesswassers (H2O) vorgegeben und die aus dem Elektrolyseprozess abgegebene Wärmemenge (Q) ermittelt wird, und wobei die Vorlauftemperatur (TIN) in Abhängigkeit von der abgegebenen Wärmemenge (Q) eingestellt wird.Die Erfindung betrifft ferner eine Elektrolyseanlage (10), die für die Durchführung des Verfahrens eingerichtet ist.
Absstract of: DE102024212188A1
Die Erfindung betrifft ein Verfahren zum Betrieb einer Elektrolyseanlage (10), die einen Elektrolyseur (1) mit einer Vielzahl von elektrisch in Serie geschalteten Elektrolysezellen (5) aufweist, wobei Prozesswasser (H2O) den Elektrolysezellen (5) zugeführt und die Elektrolysezellen (5) mit einem Strom beaufschlagt werden, wobei als Produktgase Wasserstoff (H2) und Sauerstoff (O2) erzeugt werden, und wobei das Prozesswasser (H2O) in einem Prozesswasserkreislauf (31) geführt wird. Die Temperatur (TP) des Prozesswassers (H2O) wird dadurch geregelt, indem ein Temperatursollwert (TSET) für die Vorlauftemperatur (TIN) des Prozesswassers (H2O) vorgegeben wird, wobei die Betriebsstunden (OH) des Elektrolyseurs (1) aufgezeichnet und eine durch den Betrieb hervorgerufene Wirkungsgradeinbuße (Δη) ermittelt wird. Der Temperatursollwert (TSET) für die Vorlauftemperatur (TIN) wird in Abhängigkeit von der Wirkungsgradeinbuße (Δη) eingestellt.Die Erfindung betrifft ferner eine Elektrolyseanlage (10), die für die Durchführung des Verfahrens eingerichtet ist.
Absstract of: WO2026130558A1
A core-shell structured catalytic material, a manufacturing method therefor, and a use thereof. The core-shell structured catalytic material comprises an anion-modified material serving as a substrate and an anion-conductive material supported on the anion-modified material. An electrode having said core-shell structure is applicable to hydrogen-production operating conditions for water electrolysis containing chloride ions, and efficient hydrogen production processes can be implemented under the operating conditions.
Absstract of: WO2026129824A1
A portable hydrogen generator, comprising an electrolysis water tank, an electrolysis module, a condenser and a humidification module, wherein the water tank has an accommodating space for accommodating water for electrolysis; the electrolysis module receives the water for electrolysis so as to generate and output a hydrogen-containing gas; the condenser is coupled to the electrolysis module so as to condense and filter the hydrogen-containing gas; the humidification module is coupled to the condenser; the humidification module is used for accommodating water, receiving from the condenser the hydrogen-containing gas and introducing same into the water, so as to humidify the hydrogen-containing gas. Thus, the miniature hydrogen generating device provided in the present invention can be used in small spaces, thus improving portability, has water level measurement and warning functions so as to alert users, thus improving practicability, and also has a smart water replenishing detection mechanism so as to prevent backflow caused by an excessively high water level, thus improving safety. In addition, the present invention allows for installation at any position by means of hanging slot structures in cooperation with a support, thus increasing practicability and convenience.
Absstract of: WO2026131678A1
The invention relates to an electrolyser (1) having a stack (2), an oxygen gas system (8) which is fluidically connected to anode-side regions, a hydrogen gas system (9) which is fluidically connected to cathode-side regions, an oxygen reservoir (14), a first oxygen connection conduit (16) which fluidically connects the oxygen gas system (8) to the oxygen reservoir (14), an oxygen-side shut-off element (10) which is disposed in the first oxygen connection conduit (16) and has a closed state and an open state, a hydrogen reservoir (15), a first hydrogen connection conduit (17) which fluidically connects the hydrogen gas system (9) to the hydrogen reservoir (15), a hydrogen-side shut-off element (11) which is disposed in the first hydrogen connection conduit (17) and has a closed state and an open state, and a control device (3) which is designed to bring the oxygen-side shut-off element (10) and the hydrogen-side shut-off element (11) simultaneously from the closed state to the open state on exceedance of a threshold value of a pressure differential between an anode-side gas and a cathode-side gas.
Absstract of: WO2026136632A1
An alkaline water electrolyzer (AWE) incorporates a cation-exchange membrane (CEM) instead of a conventional porous diaphragm or an anion-exchange membrane used in the conventional AWE. The corresponding change in the nature of the charge carrier from the hydroxyl anion (OH_) in the conventional AWE to an alkali cation (A+) has a substantial effect on the electrochemistry and performance of the resulting CEM-alkaline water electrolyzer (CEM-AWE). The water electrolysis device combines advantages of: 1) non-PGM (precious group metal) catalysts involved in L-AWE (liquid alkaline water electrolyzer) and in AEM-AWE (anion exchange membrane-AWE), and 2) higher efficiency, differential pressure operation, responsiveness, and long-life of PEM-WE (proton-exchange membrane water electrolyzer). The novel water electrolyzer combines advantages of the two in the CEM-AWE involving non-PGM catalysts, graphite/SS PTLs and bipolar plates. Conventional approaches to electrolysis based hydrogen generation have not employed a CEM in an AWE.
Absstract of: WO2026136596A1
The systems, compositions, and methods herein provide hydrogen and aluminum salt production through the reaction of aluminum with water, using anion donor chemicals and a corrosion agent, which eliminates the need for pre-activating aluminum and avoids the formation of water-insoluble aluminum hydroxide. Water can be combined with dissolved anion donor chemicals, a corrosion agent, and aluminum in a reaction vessel. The corrosion agent corrodes an aluminum oxide layer on the aluminum, exposing raw aluminum (Al0) to water, and initiating a reaction that produces hydrogen gas, heat, and water-soluble aluminum salts. The evolved hydrogen can be captured for immediate use or storage. The produced aluminum salts can be removed and purified for use as a precursor chemical in various industrial applications. Related apparatus, techniques, and articles are also described.
Absstract of: WO2026128931A1
The invention relates to a rectifier arrangement for hydrogen electrolysis, comprising a first transformer (1) for transforming an input voltage U1 into a secondary voltage U1', wherein the transformer (1) has N>1 winding taps (2), and wherein an on-load tap changer (4) is provided that is designed to switch the winding taps (2) of the first transformer (1) such that the output voltage U1' can be switched into N stages, and wherein a second transformer (5) is provided for transforming the secondary voltage U1' into an output voltage U2 having a number M>1 of winding taps (6), wherein a second on-load tap changer (7) connected to the controller (3) is provided, wherein the first transformer (1) is connected in series with the second transformer (5) such that the output voltage U2 can be switched into NxM stages, wherein the transformers (1, 5) are arranged on separate iron cores, and wherein a passive rectifier (8) is provided for generating an output direct current IDC and an output DC voltage UDC.
Absstract of: WO2026054606A1
The present invention relates to a porous water electrolysis separation membrane using a boron nitride compound. More specifically, the porous water electrolysis separation membrane comprises a porous polymer support and a boron nitride compound inserted into the inside of the porous polymer support or formed on a surface thereof. The water electrolysis separation membrane according to the present invention as described above exhibits excellent heat resistance and stability and has smaller pore sizes, thereby reducing the permeability of hydrogen and oxygen and achieving high hydrogen gas purity. In addition, with a reduced thickness, the water electrolysis separation membrane exhibits low sheet resistance and thus increases current density to improve electrolytic cell efficiency.
Absstract of: WO2026130046A1
Provided in the present application are a sealing gasket and an electrolyzer. The sealing gasket comprises: an outer sealing portion provided with a hollow structure; and an inner sealing portion at least partially arranged in the hollow structure. The resilience rate of the inner sealing portion is greater than that of the outer sealing portion, and the compressive stress of the outer sealing portion is greater than that of the inner sealing portion, such that when the sealing gasket is clamped and fixed by two adjacent cell frames, the inner sealing portion can exhibit a sufficient sealing capability at an inner sealing position, and the outer sealing portion can have sufficient support strength at an outer sealing position, so as to ensure a cell gap. Thus, on the basis of the differentiated design of the resilience rate and the compressive stress of the outer sealing portion and the inner sealing portion, the outer sealing portion and the inner sealing portion can complement each other's strengths, such that the sealing gasket of the present application can simultaneously meet the requirements for the sealing capabilities and support strength at different positions between cell frames. In addition, the sealing gasket of the present application is also applicable to large electrolyzers.
Absstract of: AU2024431660A1
The present invention provides: an operation method for an electrolysis device that is able to quickly reach a rated load; a control device for an electrolysis device; and an electrolysis system. Provided is an operation method for an electrolysis device (100) that is provided with a temperature adjuster (30), which adjusts the temperature of an electrolytic solution supplied to an electrolytic cell (40), the electrolytic cell (40), which electrolyzes the electrolytic solution supplied thereto via the temperature adjuster (30), and a gas-liquid separator (20), which separates a gas and a liquid produced by the electrolytic cell (40), wherein in a state in which the electrolysis device (100) is stopped, warm water is supplied to the temperature adjuster (30).
Absstract of: AU2024399298A1
The invention relates to the synthesis of urea from ammonia and carbon dioxide, wherein the hydrogen required for ammonia synthesis is obtained both by steam reforming of feed natural gas (grey hydrogen) and by electrolysis of water using electricity from renewable energy sources (green hydrogen). As the proportion of green hydrogen increases, the amount of carbon dioxide formed in the synthesis gas during steam reforming is no longer sufficient for the synthesis of urea. Therefore, flue gas, which is formed during the combustion of a fuel gas composed of fuel natural gas and combustion air and which also contains carbon dioxide, is additionally used. The oxygen formed during the electrolysis of water is introduced into the flue gas, and the modified flue gas is fed to a secondary reformer; and/or the fuel natural gas is combusted together with combustion air and the oxygen formed during electrolysis. Excess nitrogen is preferably separated from the synthesis gas before it is used for the synthesis of ammonia.
Absstract of: AU2024398716A1
A methanol plant and process for producing methanol are provided. A first SOE section is arranged to receive a carbon dioxide-rich feed and electrolyse it to a carbon monoxide-rich stream. A methanol loop is arranged to receive at least a portion of the carbon monoxide-rich stream and a hydrogen-rich stream and convert them to a crude methanol stream. A first H2O-rich stream is converted to a first steam stream by means of heat from the electrolysis process in the first SOE section. The first steam stream is used it as heat for the distillation of the crude methanol stream in the methanol distillation section.
Absstract of: AU2024399357A1
The present disclosure relates to apparatuses for producing hydrogen, and to top-down methods for producing nanoparticles. Different mechanical mills may be used to break down micron sized soil or sand particles and to react the particles with water, particularly sea water.
Absstract of: AU2024401570A1
The invention relates to a method for producing an electrode (10) for use in alkaline electrolysis of water, the method comprising: providing a metal substrate (12); providing a coating material (26) comprising powder (28) consisting of a catalyst material (20), and comprising non-metal particles (24); and coating at least a portion of the substrate with the coating material. The invention also relates to electrodes produced in this way.
Absstract of: US20260176772A1
0000 A hydrogen generator with pressure relief function includes a water tank having an accommodation space for accommodating electrolytic water, an electrolysis module arranged in the accommodation space of the water tank to electrolyze the electrolytic water from the water tank to generate gas comprising hydrogen, a humidifying cup arranged above the water tank to humidify the gas comprising hydrogen and having a humidifying chamber and a gas flow channel which are isolated from each other, and the gas flow channel is connected with the water tank. A first valve component is configured to selectively connect the humidifying chamber and an external environment, and a second valve component is configured to selectively connect the accommodation space and the humidifying chamber. When the electrolysis module stops operating, an external air from the external environment enters into the accommodation space through the first valve component and the second valve component.
Absstract of: US20260179976A1
A solid oxide cell stack fastening apparatus, in which downward pressure applied to the solid oxide cell stack is uniform throughout, includes a housing which accommodates a solid oxide cell stack and includes a first coupling part on one side thereof, and a first block which includes a second coupling part and an elastic member in contact with the solid oxide cell stack. The first coupling part and the second coupling part each have screw threads coupled to each other.
Absstract of: WO2026134138A1
The purpose of the present invention is to increase the production volume of hydrogen generated by water electrolysis and to remove hydrochloric acid during the electrolysis of saltwater. The present invention solves the problem by comprising: a container for storing saltwater; a positive electrode and a negative electrode for electrolysis; and a metal member disposed at a predetermined distance from at least one of the positive electrode and the negative electrode, wherein the metal member is configured to chemically react with hydrochloric acid produced by the electrolysis to generate hydrogen gas.
Absstract of: AU2024412736A1
This cathode for water electrolysis includes a catalyst part and a reverse current absorber that is electrically connected to the catalyst part, wherein the reverse current absorber contains a hydrogen storage alloy, and the hydrogen storage alloy contains Al.
Absstract of: AU2024410734A1
This water electrolysis electrode comprises a substrate and a catalyst portion. The catalyst portion includes Raney nickel particles and metal particles that contain nickel as a main component. The metal particles are in contact with the Raney nickel particles and include aluminum. The ratio of the total number of moles of aluminum to the total number of moles of nickel in the Raney nickel particles is greater than the ratio of the total number of moles of aluminum to the total number of moles of nickel in the metal particles.
Absstract of: US20260176778A1
0000 Provided are a membrane electrode assembly having a structure in which a cathode catalyst layer, a hydroxide ion-conductive membrane, and an anode catalyst layer are laminated in this order, in which a tensile strength (a) and a breaking elongation (b) of a water-swollen body of a polymer contained in the cathode catalyst layer and/or the anode catalyst layer and a tensile strength (c) and a breaking elongation (d) of a water-swollen body of a hydroxide ion-conductive polymer constituting the hydroxide ion-conductive membrane satisfy the following relationships (Ri) and (Rii), a method for producing hydrogen, and a hydrogen production system. 0000 Tensile strength ( a ) > tensile strength ( c ) ( Ri ) Breaking elongation ( b ) > breaking elongation ( d ) ( Rii )
Absstract of: US20260176779A1
0000 Provided are a hydroxide ion-conductive membrane including a porous substrate and a hydroxide ion-conductive polymer disposed at least in pores of the porous substrate and having a thickness of the hydroxide ion-conductive membrane of 5 μm or more and less than 50 μm, in which the polymer has 50% by mole or more of a constituent component (I) derived from a polyfunctional polymerizable monomer having a total of two or more atoms of at least one of an oxygen atom, a sulfur atom, or a nitrogen atom in a structural moiety other than a polymerizable group in constituent components of the polymer, and a method for producing the hydroxide ion-conductive membrane, and a membrane electrode assembly, and a method for producing hydrogen and a hydrogen production system, each using the membrane electrode assembly.
Absstract of: WO2024261689A1
Electrolyser device (1), of the type which uses the anion exchange membrane water electrolysis (AEMWE) technology for the production of hydrogen, characterized in that it comprises: - at least one support frame (2) with a substantially laminar development, comprising at least two seats (3) which are defined on the same support frame (2) so as not to overlap with each other, - at least two electrochemical modules (10) wherein: - each electrochemical module (10) is mounted at a respective seat (3), - each electrochemical module (10) includes an anion exchange separation membrane (11) which is interposed between two electrodes, respectively between an anode (12) and a cathode (13), - at least the separation membranes (11 ) of said at least two electrochemical modules (10) are structurally distinct and separated from each other, means (20) for applying electrical energy to the electrodes (12, 13) of each electrochemical module (10).
Absstract of: WO2026133999A1
The present invention provides a water electrolysis evaluation device 100 for evaluating a water electrolysis device W, which evaluates the water electrolysis device while appropriately taking care of a mixed gas of an oxygen gas and a hydrogen gas generated by crossover. The water electrolysis evaluation device 100 comprises: a gas flow path 41 through which an exhaust gas discharged from the water electrolysis device W flows; a sensor 81 that is provided in the gas flow path 41 and measures the flow rate or concentration of the exhaust gas; a dilution gas supply unit 82 that supplies a dilution gas to the gas flow path 41 so as to dilute the exhaust gas; and a flow rate control unit 83 that controls the flow rate of the dilution gas supplied from the dilution gas supply unit 82 to the gas flow path 41 on the basis of the measurement value of the sensor 81.
Nº publicación: WO2026134764A1 25/06/2026
Applicant:
SEOUL NAT UNIV R&DB FOUNDATION [KR]
POSCO HOLDINGS INC [KR]
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\uC11C\uC6B8\uB300\uD559\uAD50\uC0B0\uD559\uD611\uB825\uB2E8
Absstract of: WO2026134764A1
According to exemplary embodiments of the present invention, a hydrogen production method and a hydrogen production system can be provided, the hydrogen production method optimizing ammonia decomposition conditions, thereby ensuring sufficient ammonia decomposition efficiency and preventing the occurrence of side reactions of a catalyst.
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