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977
resultados
Última actualización
04/10/2026 [06:58:00]
Resumen de: US20260297761A1
A hydrogen-electric coupling control method for off-grid green power-based hydrogen production includes: performing maximum power point tracking (MPPT) control on each photovoltaic module to maximize an output power; distributing the output power to a power-type electrolyzer, and stabilizing a current on a low-voltage side at a specified value by adjusting a duty cycle of a boost direct current (DC)/DC converter, such that the power-type electrolyzer always operates at a rated power point; and distributing the output power to a regulation-type electrolyzer, and stabilizing a voltage on a high-voltage side at a target value by adjusting an output voltage of the boost DC/DC converter, such that the regulation-type electrolyzer absorbs a fluctuating part of a photovoltaic power. The hydrogen-electric coupling control method can effectively improve efficiency of a green power-based hydrogen production system, and realize stable and sustainable hydrogen production without relying on energy storage.
Resumen de: US20260297781A1
A system for synthesizing ammonia includes a reactor including an inlet portion, an outlet portion, and an energy source arranged to deliver energy to one or more reactants receivable through the inlet portion of the reactor, and the energy source activatable to reduce nitrogen to ammonia in the presence of hydrogen, at least one hydrogen pump in fluid communication with the outlet portion of the reactor, each hydrogen pump including at least one electrochemical cell, and a recirculation circuit in fluid communication between the at least one hydrogen pump and the inlet portion of the reactor and configured to direct a respective hydrogen stream from each hydrogen pump to the inlet portion of the reactor.
Resumen de: US20260297777A1
0000 An aspect of the present disclosure is directed to improving diagnostic measurements during operation of electrolyzers. In one embodiment, a hydrogen production system contains an electrolyzer; a direct current (DC) voltage source to apply a DC voltage across the electrolyzer to cause production of hydrogen by the electrolyzer; a test source to apply an alternating current (AC) signal across the electrolyzer to perform measurement of a diagnostic parameter of the electrolyzer; and a filter located in a path between the DC source and the electrolyzer, the filter designed to block the AC signal from when the AC signal is applied across the electrolyzer. As such the test source is operable to perform the measurement during the production of the hydrogen while the filter prevents the diversion of the AC signal to the DC source.
Resumen de: US20260297762A1
0000 The disclosed technology relates to electrochemical systems and methods for the energy-efficient generation of base and acid solutions and deionization of saline waters. Various systems and methods include hydrogen pump cells, capacitive-faradaic hybrid cells, and/or zinc redox-based cells. These methods strategically utilize membranes, hydrogen evolution and oxidation reactions, charge storage materials, and redox-active metals to maximize energy efficiency for base and acid generation. Various embodiments enable simultaneous base/acid generation alongside energy storage/conversion, enabling continuous operation of an external device (e.g., a base/acid generating process) during periods of intermittency in renewable energy. Various implementations involve integration with carbon dioxide capture systems and other chemical systems and processes.
Resumen de: AU2025253291A1
Geologic hydrogen production and related systems and methods are generally described.
Resumen de: US20260297773A1
0000 The present invention relates to ternary metal(s) hydroxide (M1-M2-Ni)(OH)<2> composite supported on nickel foam (NF) having nanoflower arrays structure, which acts as a self-standing bifunctional electrocatalyst for cathode as well as anode (both electrodes) for water electrolysis/splitting. Further, the present invention provides hydrothermal process for the preparation of said bi-functional electrocatalyst. The bifunctional catalyst disclosed herein is useful in performing water electrolysis reactions to generate hydrogen and oxygen.
Resumen de: US20260301985A1
Disclosed are galvanic cells and methods for treating a molten salt by use of the galvanic cells. The galvanic cell can provide anti-corrosion treatment and improved corrosion resistance via electrochemical and chemical reactions involving a corrosive impurity in a molten salt. Reaction products of the chemical and electrochemical reactions include hydrogen gas that can carry hydrogen isotopes evolved in the molten salt. The system can also include removal of the hydrogen gas from the molten salt and separation and recovery of tritium contained therein.
Resumen de: US20260297769A1
0000 An electrode, including: a substrate that has a surface composed of at least one of nickel, nickel oxide, and nickel hydroxide; and scale-like protruding parts provided on the surface of the substrate.
Resumen de: US20260297772A1
A semiconductor catalyst is provided, which exhibits an effect of accelerating a reduction reaction by visible light irradiation and is excellent in durability. The semiconductor catalyst of the present disclosure includes thin film containing nitrogen-containing diamond particles in a plane direction and a height direction. The semiconductor catalyst can be produced by, for example, fixing, on a substrate having a positive or negative charge, nitrogen-containing diamond particles having a positive or negative charge, the positive or negative charge of the nitrogen-containing diamond particles being opposite to that of the substrate, and laminating, on the fixed nitrogen-containing diamond particles, nitrogen-containing diamond particles having a positive or negative charge, the positive or negative charge of the laminated nitrogen-containing diamond particles being opposite to that of the fixed nitrogen-containing diamond particles. The step of laminating is performed at least once after the step of fixing.
Resumen de: US20260297771A1
Molybdenum carbide includes a Mo2C crystal structure, in which a content of carbon with respect to a total mass (100 mass %) of the molybdenum carbide is 6% or more.
Resumen de: US20260297763A1
0000 A method for producing hydrogen, where feed water is subjected to electrolysis with a cathode gas being obtained, wherein the cathode gas contains hydrogen, oxygen and some of the feed water, wherein a process gas flow (102) is formed using at least some of the cathode gas, where the process gas flow contains at least some of the hydrogen, oxygen and feed water contained in the cathode gas, and where, in the process gas flow, at least some of the oxygen is subjected to an oxidative catalytic reaction with some of the hydrogen to form oxidation water, and where at least some of the feed water and the oxidation water in the process gas flow are removed from the process gas flow in a water removal process.
Resumen de: US20260298411A1
0000 A method for storing hydrogen in a plurality of subsea storages in a system. The system comprising an electrolyser source for producing hydrogen at a source pressure; a downstream compressor for compressing the hydrogen from the source pressure to a compressed higher pressure; and a plurality of storages, each for storing compressed hydrogen at the compressed higher pressure and each being subsea. The method comprising at least the steps of: producing hydrogen by the electrolyser source at the source pressure; passing the hydrogen to the plurality of storages through a bypass line around the compressor; and storing the hydrogen in at least one of the plurality of storages at a first pressure below the compressed higher pressure. A system for storing hydrogen in a plurality of subsea storages is also disclosed.
Resumen de: US20260297776A1
A method for controlling a facility containing electrolysers that are fluidically in parallel, including controlling the electrolysers in such a way as to seek to increase the uniformity of the individual loads on the electrolysers in operation. As s a result, specific electrical consumption of the facility for a predetermined total production load or for an electrical power available to power the facility is provided.
Resumen de: US20260295515A1
This dehumidification apparatus is for dehumidifying a hydrogen gas that is produced by a hydrogen production device, the dehumidification apparatus comprising: a dehumidifier that includes an adsorption tower, inside of which there is provided an adsorbent that is capable of adsorbing moisture contained in the hydrogen gas; an inlet line for introducing the hydrogen gas from the hydrogen production device into the dehumidifier; an inlet valve that is provided to the inlet line; an outlet line for discharging the hydrogen gas that is dehumidified by the dehumidifier out from the dehumidifier; an outlet valve that is provided to the outlet line; and a control device that is configured to adjust the opening degree of the inlet valve and the opening degree of the outlet valve on the basis of the pressure within the adsorption tower during activation of the dehumidification apparatus.
Resumen de: AU2025255910A1
The invention relates to a gas diffusion layer (5) for an electrolysis cell (1), comprising a fine layer (51) and a coarse layer (52). The fine layer (51) comprises a fine structure with pores of a first pore size, and the coarse layer (52) comprises a coarse structure with pores of a second pore size. The coarse layer (52) comprises a plurality of spiral elements (520), the spiral elements (520) are interwoven, and at least one spiral element (520) is freely movable, in particular freely rotatable, The gas diffusion layer further comprises at least one intermediate layer (53). The at least one intermediate layer (53) comprises an intermediate structure with pores of an intermediate pore size, and the intermediate layer (53) is provided between the fine layer (51) and the coarse layer (52), said intermediate pore size being larger than that of the fine layer (51) and smaller than that of the coarse layer (52).
Resumen de: AU2025235851A1
A method for revamp and decarbonizing an ammonia or urea plant comprising an existing primary and secondary steam reforming unit for the preparation of ammonia synthesis gas and an ammonia synthesis loop using an electrolysis unit to produce hydrogen and oxygen.
Resumen de: DE102025111622A1
Verfahren zum Betrieb einer Elektrolysezelle (1) bei dem Wasserstoff (H2) und Sauerstoff (O2) als Produktgase erzeugt werden, wobei die Elektrolysezelle (1) einen Anodenraum (3) und einen Kathodenraum (5) aufweist, die durch eine elektrodenbeschichtete Membran (7) getrennt sind, wobei die Elektrolysezelle (1) mit einem Elektrolysestrom (I) beaufschlagt wird, so dass Sauerstoff-Produktgas im Anodenraum (3) und Wasserstoff-Produktgas im Kathodenraum (5) gebildet wird, wobei ein Fremdgasanteil von Wasserstoff (H2) von dem Kathodenraum (5) durch die Membran (7) in den Anodenraum (3) überführt wird. Dabei wird die Stromdichte (j) variiert und die Wasserstoffpermeationsrate (ṅH2) durch die Membran (7) als Funktion der Stromdichte (j) sowie in Abhängigkeit des Wassertransports (ṅH2O,drag) von dem Anodenraum (3) durch die Membran (7) in den Kathodenraum (5) bestimmt.Die Erfindung betrifft weiterhin einen entsprechenden Elektrolyseur (10a), der für die Durchführung des Verfahrens eingerichtet ist.
Resumen de: WO2025109126A1
Water electrolyser stack having a range of half-cell frames which each circumscribes one of an anolytic or a catholytic process chamber and which half-cell frames are arranged and aligned in an array between a proximal electric current injector/collector plate and a distal electric current injector/collector plate, and where each half-cell frame comprises an embedded furrow flow channel adapted to serve an electrolyte flow from a stack internal inflow manifold channel to a corresponding anolytic or catholytic reaction chamber and an embedded furrow flow channel adapted to serve an electrolyte and gas outflow from a corresponding anolytic or catholytic reaction chamber to a corresponding stack internal manifold channel wherein each of the embedded furrow flow channels comprise at least one fluid and/or gas trap section.
Resumen de: WO2025109108A1
The present application relates to an electrode unit (1216a, 1216b) for an electrolytic cell, comprising a planar electrode (12a, 12b) and an interlayer (16a, 16b) which is elastically deformable in a direction normal to the planar electrode (12a, 12b) and which has a thickness greater than a thickness of the electrode (12a, 12b) at least in a central region of the interlayer (16a, 16b), the interlayer (16a, 16b) comprising periphery regions crushed in said direction and connected to a periphery of the electrode (12a, 12b) by a weld made by resistance autogenous welding. An electrolytic cell and an electrolyser stack comprising such electrode units (1216a, 1216b) and a method for manufacturing such a stack are also described.
Resumen de: WO2025109618A1
A Green HYDROGEN production apparatus is provided having a modular reactor vessel. The reaction is managed to safely drive the reaction to completion to maximize HYDROGEN production. A HYDROGEN outlet provides for the collection of the generated HYDROGEN from the reactor vessel (e.g. 1)
Resumen de: WO2025109109A1
The present application relates to an electrolytic cell comprising at least a first and a second bipolar plate (14) and an electrode unit (1216a, 1216b) and a membrane (11). The electrode unit comprises a planar electrode (12a, 12b) and an interlayer (16a, 16b) which is elastically deformable in a direction normal to the planar electrode (12a, 12b) and which has a thickness greater than a thickness of the electrode (12a, 12b) at least in a central region of the interlayer (16a, 16b), the interlayer (16a, 16b) comprising periphery regions crushed in said direction and connected to a periphery of the electrode (12a, 12b) by a weld created by autogenous welding. The present application also relates to an electrolyser stack comprising such a cell and to a method for manufacturing such a stack.
Resumen de: US20250167271A1
0000 An integrated energy system comprising a power plant including at least one nuclear reactor and electrical power generation system, the at least one nuclear reactor being configured to generate steam, and the electrical power generation system being configured to generate electricity, a desalination system configured to receive at least a portion of the electricity and steam to produce brine, an electrolysis process configured to process the brine into Sodium Hydroxide (NaOH), a Sodium Formate (HCOONa) production process configured to receive the Sodium Hydroxide (NaOH) to produce Sodium Formate (HCOONa), a Hydrogen (H<2>) extraction reactor configured to receive the Sodium Formate (HCOONa) and produce Hydrogen (H<2>), and a fuel cell configured to receive the Hydrogen (H<2>).
Resumen de: EP4813908A1
0001 A system and method are disclosed for the production of green hydrogen and oxygen from water using thermal decomposition driven by pulsed or continuous-spin detonation waves. In some embodiments, fresh water is converted into low-temperature steam and superheated beyond 3500°C using multi-stage shock-resonant compression within cooled gas-dynamic resonators, leading to dissociation of water into hydrogen and oxygen. In other embodiments, salt water is first desalinated by detonation-induced evaporation and fragmentation, producing steam and sea salt, after which the steam is thermally decomposed. A centrifugal vortex reactor is used to separate the resulting hydrogen and oxygen gases based on molecular weight. The system is capable of operating in a self-sustaining mode by recycling part of the generated gases for continued detonation. It is suitable for terrestrial and space-based applications, providing scalable, carbon-neutral hydrogen and oxygen production from fresh or salt water without the need for external electricity or fossil fuels.
Resumen de: EP4814168A1
Provided are an electrolysis device, an electrolysis device control method, and an electrolysis device control program that reduce circulation current flowing through a grounding wire. An electrolysis device (1) includes: a plurality of rectifiers (20); and an electrolyzer (100) having a plurality of cell stacks (10) having common positive electrodes, the positive electrode of each of the cell stacks (10) is connected to the positive electrode of each of the plurality of rectifiers (20) installed in parallel, the negative electrode of each of the cell stacks (10) is connected to the negative electrode of each of the rectifiers (20), and electrolysis device further includes a balance cable (80) connecting a negative electrode of at least one of the cell stacks (10) and a negative electrode of at least another one of the cell stacks (10) to each other.
Nº publicación: EP4814166A2 30/09/2026
Solicitante:
GEARY PAUL FRANCIS [GB]
Geary, Paul Francis
Resumen de: EP4814166A2
0001 The present disclosure relates to an electrode assembly for a bipolar electrolyser stack, preferably for an electrolyser stack, comprising: a first flow-through electrode comprising a first surface that is permeable to gases produced by the decomposition of a process solution, preferably water, and an opposite second surface; a second flow-through electrode comprising a first surface that is permeable to gases produced by the decomposition of a process solution, preferably water, and an opposite second surface; and a non-permeable divider arranged between the second surfaces of the first and second flow-through electrodes and adapted to separate the first and second flow-through electrodes from each other.
BOPI
Sede Electrónica
