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984
resultados
Última actualización
16/10/2026 [07:02:00]
Resumen de: AU2026242110A1
A method for hydrogen and/or oxygen generation from water in a solid/semi-solid state, using a hydrogel membrane. The method may include the steps of evaporating water to produce a water vapour, and subsequently separating hydrogen and oxygen from the evaporated water. An apparatus for hydrogen and/or oxygen generation from water in a solid/semi-solid state, using a hydrogel membrane. The apparatus may include a pair of electrodes separated by a membrane, with the membrane being hydrated with water such that the membrane forms a source of hydrogen and oxygen. ep e p
Resumen de: EP4822938A1
0001 A method for operating an electrolysis system (2) is provided. The method comprises an electrolyzer (6), a transformer (3), and a rectifier (4, 5), wherein the transformer (3) receives an electrical AC power from an electrical grid (104) and provides an AC power (AC) output to the rectifier (5), wherein the rectifier (5) converts the AC power output (AC) into a DC power input (P1) for the electrolyzer (6), the method further comprising i), identifying begin-of-life (BOL) parameters for an electrolyzer stack (6) based on a measurement, wherein a linear dependency between a DC voltage (Udc
Resumen de: EP4821585A2
Processes and apparatus for electrocatalytically converting carbon dioxide emissions and/or ambient carbon dioxide into useful chemicals are described. The process may include: removing carbon dioxide from ambient air through a carbon capture technique, supplying a carbonate or bicarbonate aqueous solution as cathode feed to a cathode of an electrolytic cell comprising a membrane electrode assembly which includes a bipolar membrane separating an anode from the cathode, and applying an electrical potential difference between the cathode and the anode of the membrane electrode assembly to electrocatalytically reduce the carbonate or bicarbonate aqueous solution to carbon monoxide or another useful chemical.
Resumen de: EP4822058A1
The invention relates to a water electrolysis-based hydrogen production system (1) comprising a stack (2) comprising at least one electrolytic cell, the stack (2) being traversed by a first electrolyte circuit (Circ(H2)) to collect hydrogen gas (G_H2) and a second electrolyte circuit (Circ(O2)) to collect oxygen gas (G_O2); a first separator (3a) disposed in the first electrolyte circuit (Circ(H2)) for separating hydrogen gas (G_H2) from the electrolyte, the first separator (3a) comprising a first vessel (Va) presenting a bottom (Ba); a second separator (3b) disposed in the second electrolyte circuit (Circ(O2)) for separating oxygen gas (G_O2) from the electrolyte, the second separator (3b) comprising a second vessel (Vb) having a bottom (Bb); a balancing conduit (4) fluidly connecting the first separator (3a) and the second separator (3b), the balancing conduit (4) presenting a first end (4a) opening into the first vessel and a second end (4b) opening into the second vessel. The first end (4a) and the second end (4b) of the balancing conduit (4) are positioned, respectively, at a first level (7a) above the bottom (Ba) of the first vessel and at a second level (7b) above the bottom (Bb) of the second vessel to prevent the complete drainage of electrolyte from the first separator (3a) or from the second separator (3b) through the balancing conduit (4).
Resumen de: WO2025119497A1
The invention relates to an electrochemical cell assembly (10) comprising an end plate (14, 18), a stack (20) comprising a plurality of cell units (22) that are stacked upon one another along a stacking direction (24), and an insulating plate (32) that is interposed between the end plate and the stack, wherein the cell units each comprise a periphery (52) and a central portion (54), wherein at least one cut-out (76) is provided in the insulating plate, said cut-out extending through the insulating plate along the stacking direction, and wherein at least one inset (78) is positioned in said cut-out such that, seen along the stacking direction, the inset and the central portion overlap each other, said inset being formed from a ceramic material.
Resumen de: WO2025119499A1
The invention relates to a method of preparing a cell repeat unit (18) for use in an electrochemical cell stack (10), the method comprising providing an electrochemical cell unit (28), said cell unit (28) having an inner fluid volume (44) and a cell opening (60) for transporting fluid between said inner fluid volume (44) and the exterior of the cell unit, providing a gasket being configured to surround the cell opening, and attaching said gasket to said cell unit by a hot melt adhesive dose (80). The invention also relates to a cell repeat unit and an electrochemical cell stack.
Resumen de: EP4822062A1
0001 Provided is a membrane electrode assembly capable of suppressing hydrogen crossover. A membrane electrode assembly for polymer electrolyte membrane water electrolysis which comprises an anode having a catalyst layer, a cathode having a catalyst layer and a polymer electrolyte membrane provided between the anode and the cathode wherein at least one of the catalyst layer in the anode and the catalyst layer in the cathode comprises a fluorinated polymer having ion exchange groups and comprising units having a cyclic ether structure.
Resumen de: EP4822059A1
0001 The purpose of the present invention is to improve the safety of a hydrogen production plant. This hydrogen production plant (1) comprises: a solid oxide electrolysis cell (SOEC) (10) which produces a hydrogen-containing gas; and a discharge stack (30) into which the hydrogen-containing gas produced by the SOEC (10) is introduced and which discharges the introduced hydrogen-containing gas to air. The discharge stack (30) has a spray unit (32) which supplies, to the hydrogen-containing gas introduced therein, cooling water for cooling the hydrogen-containing gas.
Resumen de: WO2022138910A1
This hydrocarbon production method comprises a first production step of using carbon dioxide contained in a source material gas to produce carbon monoxide, and a second production step of using hydrogen and carbon monoxide contained in a source material gas to produce a hydrocarbon. Each of the source material gases contains at least one among carbon dioxide, carbon monoxide, and hydrogen, which are not from fossil fuel origin.
Resumen de: WO2025179506A1
The present disclosure relates to an electrode separator unit, a preparation method, an electrolytic cell unit, and a device for hydrogen production from a renewable energy. The electrode separator unit of the present disclosure comprises a membrane electrode assembly arranged in a center area of the electrode separator unit and comprises a sealing frame arranged around the outer peripheral wall of the membrane electrode assembly, wherein the inner peripheral wall of the sealing frame is fixedly connected to the outer peripheral wall of the membrane electrode assembly by means of material connection. In the solution of the present disclosure, by using the sealing frame and fixedly connecting the inner peripheral wall of the sealing frame to the outer peripheral wall of the membrane electrode assembly by means of material connection, no gaps generated by traditional packaging are present in the electrode separator unit. In addition, the contact area between the sealing frame and an adjacent functional component during fixed connection is increased, so that the clamping force for packaging an electrolytic cell device is more concentrated, and thus the sealing effect of the electrode separator unit is firmer, thereby further improving the hydrogen production efficiency. In addition, the present disclosure further reduces the number of parts, reduces the production cost, and improves the production efficiency.
Resumen de: EP4640623A1
0001 The invention relates to a process (100) for producing a hydrogen product (81) from an endothermic cracking reaction of an ammonia feed (4), comprising the following steps: - providing (S10) the ammonia feed to a cracking unit (210), - in said cracking unit, performing (S20) the endothermic cracking reaction of the ammonia feed, thereby producing a cracked gas (80) containing hydrogen (81), nitrogen (82) and unconverted ammonia (83), - in said cracking unit, combusting the separated unconverted ammonia in a combustion step (S40) to provide heat to the endothermic cracking reaction, - reducing (S50) a cracking temperature (Tc) of the endothermic cracking reaction, thus increasing the amount of unconverted ammonia in the cracked gas and to be combusted to provide heat to the endothermic cracking reaction, - controlling (S60) the flow of the ammonia feed directed to the cracking unit to produce a desired amount of hydrogen product (Psp).
Resumen de: US20260308771A1
0000 Provided herein is an ammonia cracker comprising: an anolyte reservoir housing an anolyte comprising alkali and ammonia; at least one catholyte reservoir housing at least one catholyte, wherein the at least one catholyte comprises acid or alkali; and an electrolysis cell, the electrolysis cell comprising: an anode chamber housing an anode; at least one cathode chamber housing a cathode; and an ion exchange membrane separating the anode chamber and the cathode chamber. Also provided herein is a method of producing hydrogen, the method comprising: (i) feeding an anolyte comprising ammonia and alkali to an anode chamber housing an anode; and (ii) feeding an acid or alkali catholyte to a cathode chamber housing a cathode; wherein an ion exchange membrane separates the anode chamber and the cathode chamber. Further provided herein is hydrogen produced by the method disclosed herein.
Resumen de: US20260312109A1
0000 There is provided a membrane electrode assembly (MEA) for an electrochemical devices, such as for fuel cells and electrolyzers, particularly for polymer electrolyte membrane (PEM) fuel cells, said membrane electrode assembly comprising a composite electrolyte membrane comprising a reinforced electrolyte layer comprising at least one porous support, the porous support being at least partially imbibed with a first ion exchange material; and a first electrode comprising a reinforced electrode layer comprising a porous support, the porous support being at least partially imbibed with a first catalyst and a second ion exchange material, wherein the composite electrolyte membrane is in contact with the first electrode. Also provided is a composite electrolyte membrane, which can be used in the manufacture of the membrane electrode assembly and a fuel cell and electrolyzer comprising such a membrane electrode assembly. A method for the manufacture of the membrane electrode assembly, and a membrane electrode assembly obtainable by such a method are also disclosed.
Resumen de: US20260308775A1
A water and carbon dioxide co-electrolyser system (1) comprising an anion exchange membrane (AEM) electrolyser (2) having at least one AEM electrolyser cell (2c) comprising a cathode (8), an anode (12) and an AEM membrane (16) separating the cathode from the anode, and an anolyte circuit (18) in which an anolyte flows connected to the anode (12) via an anolyte inlet (14i) and anolyte outlet (140) of the anode (12). The CO2 and H2G co-electrolyser system further comprises a mineralization system (3) including a mineralization unit (27) connected to the anolyte circuit (18) and containing a mineralization metal configured to react with the carbonate and bicarbonate ions circulating in the anolyte circuit (18) to form a metal carbonate.
Resumen de: US20260307985A1
An ammonia cracking reactor including one or more reaction tubes containing ammonia cracking catalyst; one or more fuel combustion elements for combusting fuel in a fuel combustion zone surrounding the one or more reaction tubes to provide heat energy to support the cracking of ammonia in the one or more reaction tubes; and one or more electrically powered heating elements to provide heat energy to support the cracking of ammonia in the one or more reaction tubes, wherein the one or more fuel combustion elements and the one or more electrically powered heating elements are provided in the same reactor for supporting the cracking of ammonia in the same reaction tubes and together form an electrically assisted fuel burning ammonia cracking reactor.
Resumen de: AU2025375145A1
Provided is a hydrogen production control system for producing hydrogen with different environmental impacts. A hydrogen production control system 20 causes a hydrogen production apparatus 10 to produce hydrogen. The hydrogen production apparatus inputs, to a water electrolysis device 13, a power amount from a renewable energy generation device 12 or a power amount from a power grid 30, and causes the water electrolysis device to electrolyze water to thereby produce hydrogen with different environmental impacts. The hydrogen production apparatus comprises: a renewable energy variation amount prediction unit which predicts variation in the power amount from the renewable energy power generation device; and a type-specific hydrogen production planning unit which creates a type-specific hydrogen production plan for producing hydrogen with different environmental impacts by the hydrogen production apparatus, on the basis of a prediction result from the renewable energy variation amount prediction unit. The type-specific hydrogen production planning unit creates a production plan for producing a first type of hydrogen with a small environmental impact among hydrogen with different environmental impacts by using a power amount in a first case where the power amount from the renewable energy generation device is predicted to be supplied stably.
Resumen de: US20260307031A1
A hydrogen generation device includes a hydrogen generator body, a secondary coil, an eddy current generating unit, and at least one support member. The hydrogen generator body includes a chamber. One end part of the hydrogen generator body is provided with a first inlet for allowing a first substance to enter the chamber and a second inlet for allowing a second substance to enter the chamber. The other end part of the hydrogen generator body is provided with an outlet and an exhaust port. The secondary coil is wound around the exterior of the hydrogen generator body. The eddy current generating unit is disposed in the chamber at a position corresponding to the secondary coil. The support member has plural holes and is disposed in the chamber. The eddy current generating unit penetrates through the support member and is arranged in the chamber by the support member.
Resumen de: WO2026208386A1
The present application provides a membrane electrode assembly and a preparation method therefor, an electrolytic cell, and a system for hydrogen production by water electrolysis. The membrane electrode assembly comprises a support layer and a membrane electrode which are stacked, wherein the material of the support layer is a porous metal mesh, the porous metal mesh is formed by interweaving metal wires, and the wire diameter of the metal wires is 0.5-5.5 mm. The support layer is used for supporting the membrane electrode, can provide additional mechanical support for the membrane electrode, and reduces deformation of the membrane electrode under pressure. In addition, the support layer can effectively disperse external pressure, reduce local stress concentration in the membrane electrode, and reduce the risk of damage to the membrane electrode.
Resumen de: AU2025258654A1
This water electrolysis system uses an alkaline aqueous solution as an electrolytic solution, and is provided with: a cell stack to which the electrolytic solution is supplied; a storage unit in which the electrolytic solution is stored; an annular flow path that connects the storage unit and the cell stack; a pump unit that is provided on the annular flow path; a scale removal unit that is provided on the annular flow path and is capable of removing a scale contained in the electrolytic solution; and a scale component removal unit that is capable of removing scale components dissolved in the electrolytic solution at a saturation concentration or less.
Resumen de: US20260312101A1
An apparatus for generating electrical energy is disclosed. The apparatus comprises an electrolytic hydrogen generator configured to receive electricity from at least one renewable electricity generating source and produce hydrogen and oxygen from water. The apparatus also comprises a hydrogen storage unit configured to store hydrogen produced by the electrolytic hydrogen generator and a plurality of hydrogen fuel cells in fluid connection with the hydrogen storage unit and a source of oxygen or air, each hydrogen fuel cell configured to generate electricity from hydrogen supplied from the hydrogen storage unit and oxygen or air supplied from the source of oxygen or air.
Resumen de: US20260312078A1
The present invention relates to method for the synthesis of a transition metal catalyst consisting of electrodeposition on a substrate electrode from an electrolyte solution comprising at least one transition metal precursor, wherein the electrodeposition takes places at a deposition current density of 500 to 2000 mA/cm2. The present invention further relates to a transition metal catalyst characterised in that it is stable for at least 30 minutes at a current density of at least 400 A/cm2 on the substrate electrode.
Resumen de: US20260308779A1
The present invention concerns composite casing structures for electrolytic cells wherein each casing structure is made of a plurality of casing components, optionally made of at least two different materials, which are subsequently joined together to form a structure suitable to house one or more of the following elements: electrodes, separators, bipolar elements, elastic elements and/or current collectors. The casing structure may be advantageously employed in electrolysers for high pressure alkaline water electrolysis.
Resumen de: WO2026211917A1
The present invention addresses the problem of providing: a gas diffusion substrate used for electrolyzing carbon dioxide gas, the gas diffusion substrate suppressing the generation of a side reaction product (H2) over time (the ratio (C2H4/H2) of a main reaction product to the side reaction product is maintained over a long period of time); a method for manufacturing the same; an electrolytic cell electrode including the gas diffusion substrate; and a carbon dioxide electrolysis device including the electrolytic cell electrode. Provided are: a gas diffusion substrate which is used for electrolyzing carbon dioxide gas and is obtained by laminating a water-repellent porous layer (MPL) on at least one surface of a porous carbon electrode substrate (GDL), the gas diffusion substrate having a gas permeability in the through-plane direction from the GDL side of 1.0-3.0 mL/cm2·hr·Pa and a liquid permeation resistance from the MPL side of 180 min or more; a method for manufacturing the same; an electrolytic cell electrode including the gas diffusion substrate; and a carbon dioxide electrolysis device including the electrode for an electrolytic cell.
Resumen de: WO2026207618A1
An electrolyzer system and associated design and optimization methods are disclosed for producing hydrogen gas from an impure wastewater feedstock. Electrode temperature mapping and analysis of thermoelectric phenomena, including Joule/Thomson effects in homogeneous conductive electrodes such as 316L stainless steel, are used to identify localized oxidation and reduction regions and correlate them with gas bubble nucleation and detachment. These findings, together with electrode material characteristics and operating conditions, are incorporated into computational fluid dynamics modeling of two-phase gas–liquid flow to predict electrode and flow-field configurations that improve bubble removal, reduce overpotential and resistive losses, and enhance heat and mass transfer. In some embodiments, optimized electrodes include microchannel networks configured to direct electrolyte toward preferential reaction sites and promote gas disengagement. The resulting systems can achieve energy consumption and hydrogen production rates using contaminated wastewater comparable to systems operating on purified, demineralized water.
Nº publicación: US20260308789A1 08/10/2026
Solicitante:
FOURIER EARTH INC [US]
Fourier Earth, Inc.
Resumen de: US20260308789A1
An electrolyzer producing hydrogen. According to an aspect, the electrolyzer contains a stack producing a first fluid containing oxygen and a second fluid containing hydrogen upon application of voltage across the stack. A first pipe carries the first fluid away from the stack. A sensor is operable to send vibration signals representing a measure of vibrations of the first pipe when carrying the first fluid away from the stack, and a detection system operates to detect damage to one or more components within the stack based on the vibration signals.
BOPI
Sede Electrónica
