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764
resultados
Última actualización
26/09/2025 [06:58:00]
Resultados 125 a 150 de 764
Resumen de: WO2025183169A1
A laminate according to the present invention comprises a porous metallic body on an electrolyte membrane. Fine metal particles are included at least in pores and/or in the electrolyte membrane-side surface of the porous metallic body. The average pore size of the porous metallic body is preferably 0.5-100 μm. The average particle size of the fine metal particles is preferably 5-200 nm. The thickness of the porous metallic body is preferably 1-500 μm. In addition, a fine metal particle layer is preferably provided between the electrolyte membrane and the porous metallic body. The porous metallic body is preferably a metal foam or a metal fiber mat.
Resumen de: WO2025183341A1
The present invention relates to a reverse electrodialysis-based water electrolysis apparatus capable of producing hydrogen and oxygen with a small amount of electricity consumption and generating electricity in an eco-friendly manner by introducing an exchange membrane having an electrode layer bonded to the surface thereof. The reverse electrodialysis-based water electrolysis apparatus of the present invention may be economically feasible by producing hydrogen and oxygen with a small amount of electricity consumption, and can reduce environmental pollution by generating electricity in an eco-friendly manner. In addition, hydrogen can be produced by using seawater, thereby securing economic feasibility.
Resumen de: WO2025182228A1
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).
Resumen de: WO2025182218A1
Provided are: an electrolysis device for reducing a circulating current through a grounding wire; a method for controlling the electrolysis device; and a control program for the electrolysis device. This electrolysis device (1) includes an electrolysis cell (100) having a plurality of rectifiers (20) and a plurality of cell stacks (10) having a common positive electrode, wherein the respective positive electrodes of the cell stacks (10) are connected to respective positive electrodes of the rectifiers (20) installed in parallel, respective negative electrodes of the cell stacks (10) are connected to respective negative electrodes of the rectifiers (20), and a balance cable (80) for connecting the negative electrode of at least one of the cell stacks (10) and the negative electrode of at least one of the other cell stacks (10) is provided.
Resumen de: US2025275533A1
Nanoplatelet forms of monolayer metal hydroxides are provided, as well as methods for preparing same. The nanoplatelets are suitable for use in antimicrobial compositions, for pressure treating lumber against wood rot, termites, and fungus, for water treatment for the removal of heavy metal contaminants, for the production of plasmonics devices, for the production of ore, or for the recovery of valuable metals in, e.g., fly ash ponds, mine tailings ponds, or other fluids containing the metal in ionic form. The nanoplatelet forms include copper hydroxide nanoplatelets.
Resumen de: US2025277318A1
The present disclosure is directed to a geothermal hydrogen production system, comprising; a primary liquid circuit circulating a liquid into a geothermal well and returning heated liquid from a well head of the geothermal well, the primary liquid circuit passing through a desalination plant; a first turbine driven by the heated liquid to produce a first mechanical output; and a second turbine driven by the heated liquid to produce a second mechanical output, wherein the first mechanical output drives an electrical generator, configured to power an electrolyser generating hydrogen via electrolysis of fresh water, and the second mechanical output drives an air compressor to provide at least one of a first, a second and a third compressed air supply, wherein the first compressed air supply drives a supply pump to supply salt water to the desalination plant, the second compressed air supply drives a start-up pump to initiate the primary liquid circuit, and the third compressed air supply drives a fresh water pump to deliver fresh water from the desalination plant to the electrolyser.
Resumen de: WO2025183309A1
One embodiment of the present invention provides a system and method for producing hydrogen and biogas, capable of shortening the hydrogen production start time of a microbial electrolysis cell through techniques of determining the voltage application time at each step, monitoring electrochemically active microbial populations, and inhibiting methane conversion bacteria for hydrogen production, in order to shorten the stabilized culture period of the microbial populations through a single-chamber microbial electrolysis cell system.
Resumen de: WO2025182936A1
This apparatus for producing carbon dioxide is provided with: an anode which is provided on one side of an electrolyte membrane and generates protons from hydrogen; a cathode which is provided on the other side of the electrolyte membrane and generates hydrogen; a first liquid chamber which is provided between the anode and the electrolyte membrane and to which a first electrolyte solution that has absorbed carbon dioxide is supplied; and a second liquid chamber which is provided between the electrolyte membrane and the cathode and to which a second electrolyte solution is supplied. The anode is supplied with a gas that has a hydrogen concentration of less than 99 vol%.
Resumen de: WO2025181690A1
The present disclosure provides system and method for gasification-based fuel synthesis by coupling it with green hydrogen produced using renewable energy, Carnot battery, and Solid- Oxide Electrolyser Cell (SOEC), with CO2 capture during gasification. The system provides an end-to-end solution for round-the-clock green hydrogen production using renewable energy sources coupled with a Carnot battery to run an SOEC. The SOEC produces oxygen and hydrogen from the continuous heat and power received from the Carnot battery. The oxygen is sent to a gasifier for gasification. The process of gasification includes a series of chemical reactions where the oxygen from SOEC and steam may be reacted with an organic feedstock to convert it to synthetic gas, which is further enriched with hydrogen produced by SOEC, to produce fuels. The CO2 captured from this process is further reacted with green hydrogen from SOEC to produce a parallel stream of electrofiiels. The heat generated during gasification-based fuel synthesis and electrofuels synthesis is recycled back to the Carnot battery.
Resumen de: WO2025181688A1
The present disclosure provides system and method for synthesis of green ammonia and other nitrogenous fertilizers derived from it including urea and nitric acid (as well as others that may be produced by any combination/reaction of these) by coupling renewable energy and Carnot battery with Solid-Oxide Electrolyser Cell (SOEC) and Direct Air Capture (DAC). 5 The system provides a solution for round-the-clock renewable energy using Carnot battery that provides both heat and power to run SOEC. The heat from Carnot battery is used by DAC to capture carbon dioxide from air. A nitrogen-oxygen generator may produce nitrogen using continuous power from Carnot battery. Ammonia may be produced by using hydrogen from SOEC, and nitrogen from the nitrogen-oxygen generator. Urea may be produced using 0 carbon dioxide from DAC and ammonia. Ammonia and oxygen from SOECs and nitrogen- oxygen generator may be used for synthesis of nitric acid, and other nitrogenous fertilizers. The process heat from ammonia and nitric acid synthesis is recycled back to the Carnot battery.
Resumen de: US2025277317A1
Disclosed are electrolyzer systems and methods that combine forward osmosis with electrolysis to produce hydrogen from a water source such as seawater. The systems can operate with low energy input through immersion in the water source or by flowing the water source past osmotic membranes of a system to establish osmosis and simultaneous electrolysis.
Resumen de: US2025276895A1
The gas generation system decomposes water in contact with the photocatalyst by sunlight to generate a mixed gas composed of oxygen gas and hydrogen gas. The gas generation system includes a housing having a light-transmission wall in which an accommodation space for accommodating water and a photocatalyst is formed. The light-transmission wall transmits the sunlight S that has directly or indirectly reached at least a part of the wall portion forming the accommodation space. The gas generation system includes an irradiation device that causes an artificial light L having a peak wavelength that is absorbed by the photocatalyst to emit light by supply of electric power, and irradiates the light-transmission wall with the emitted artificial light L, and a switch that selectively switches supply or stop of supply of electric power to the irradiation device.
Resumen de: US2025276903A1
Process for producing syngas comprising the steps of:a) burning methane or natural gas with oxygen and optionally with water steam for producing flue gas comprising CO2 and H2O according to the following reaction:CH4+2O2→CO2+2H2O1b) cooling the flue gas coming from a) by heat exchange with a water stream which is thereby vapourised;c) condensing and removing water from the flue gas, coming from step b), thereby obtaining a mixture consisting essentially of CO2;d) carrying out an electrolysis of a steam stream in a solid oxide electrolytic cell (SOEC), whereby steam is split into oxygen gas and hydrogen gas according to the following reaction scheme:H2O(g)→H2+1/2O22e) separating and drying hydrogen gasf) carrying out a reverse water gas shift reaction between CO2 coming from step c) with H2 coming from step e) according to the following scheme:CO2+H2→CO+H2O.3
Resumen de: US2025277316A1
The present disclosure relates to an electrolyzer for generating hydrogen, the electrolyzer comprising: a housing comprising an electrolyte chamber; two electrodes for decomposition of electrolyte water, at least one of the electrodes being permeable to gases produced by the decomposition of electrolyte water, wherein the at least one permeable electrode has a first surface facing the electrolyte chamber and a second surface facing a first gas collection chamber; an electrolyte supply circuit for supplying electrolyte water to the electrolyte chamber; and a control unit and/or mechanical control for controlling a pressure drop across the at least one permeable electrode, between the electrolyte chamber and the first gas collection chamber.
Resumen de: US2025276905A1
Method for recovering waste heat created in the production of ammonia, the method comprises the steps of(a) providing an ammonia synthesis gas including the steps of electrolysis of water or steam for the preparation of hydrogen and of adding a stream of nitrogen into the hydrogen;(b) converting the ammonia synthesis gas to ammonia;(c) recovering at least a part of waste heat from the electrolysis in step (a);(d) upgrading the waste heat from step (c) by heat recovered from one or more compressor stages discharge and/or waste heat created in the conversion of the ammonia synthesis gas in step (b) and/or waste heat from a turbine condenser utilizing steam generated in step (b); and(e) distributing the upgraded waste heat from step (d) to a downstream heat utilizing step.
Resumen de: WO2025182682A1
A method for operating a water electrolysis apparatus that comprises an electrolytic bath for electrolyzing water, a hydrogen separator to which hydrogen generated in the electrolytic bath is guided, an oxygen separator to which oxygen generated in the electrolytic bath is guided, and a vent line for discharging gas from the hydrogen separator or the oxygen separator and a vent valve provided to the vent line, the method comprising: a step for halting electrolysis of water in the electrolytic bath; and a step for determining whether or not a first index indicating the amount of increase in the concentration of oxygen in gas in the hydrogen separator or the concentration of hydrogen in gas in the oxygen separator has exceeded a first threshold after the electrolysis has been halted. When the first index exceeds the first threshold, the pressure in the hydrogen separator or the oxygen separator is lowered to a first prescribed value by opening the vent valve.
Resumen de: WO2025179709A1
The present application relates to the technical field of catalysts and relates to a non-noble metal cathode hydrogen evolution catalyst for PEM water electrolysis and a use thereof. The present application provides a method for preparing a cathode hydrogen evolution catalyst. A nickel-molybdenum heteropoly acid having a specific structure is generated in situ on the surface of a porous carbon material carrier, and is used as a hydrogen evolution catalyst active component precursor, and an in-situ generated nickel-containing molybdenum sulfide active component is subjected to sulfidation treatment to prepare a non-noble-metal-supported cathode hydrogen evolution catalyst, wherein the in-situ generated nickel-containing molybdenum sulfide active component has a hydrogen adsorption free energy similar to that of Pt and catalytic hydrogen evolution activity, the dispersity is good, and the number of active sites is large, thereby reducing the costs of the catalyst; in addition, during the sulfidation treatment of the nickel-molybdenum heteropoly acid, nitrogen or phosphorus atoms in the carrier can be doped into the lattice of molybdenum disulfide, thereby reducing the hydrogen evolution Gibbs free energy of sulfur atoms on an MoS2 crystal basal surface, and more active sites are formed on a sulfur edge and a molybdenum edge, facilitating a hydrogen evolution reaction.
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: US2025279726A1
An electrolysis plant includes an electrolyzer and a circuit assembly which has an input for connecting to an external DC source and an output connected to the electrolyzer. The circuit assembly has a transformer with an inverter connected on the primary side and a rectifier connected on the secondary side, such that a direct current can be supplied to the electrolyzer. There is also described a plant network with a electrolysis plant and a renewable energy plant that is directly connected to the electrolysis plant.
Resumen de: AU2024291100A1
The invention relates to an energy supply system (20) for coupling to a wind turbine (30) used in island mode, wherein the wind turbine (30) is configured to operate an electrolysis system (11) for producing green hydrogen using wind energy, wherein the energy supply system (20) has a solar energy source (21), comprising a photovoltaic module (22) and/or a solar thermal collector (23), which is configured to supply the electrolysis system (21), in particular an enclosure (12) and water-conducting lines of electrolysis units of the electrolysis system (11), with thermal energy in the event of the absence of wind energy. The invention also relates to a corresponding method for supplying solar energy to a wind turbine (30) used in island mode.
Resumen de: AU2024318321A1
The invention relates to an electrolysis system (10) comprising a plurality of electrolysis devices (34, 36) which are connected to a power supply line (30), the electrolysis devices (34, 36) having a power supply unit (38, 40) and an electrolysis module (12, 14, 16, 18, 20, 22, 24, 26) coupled to the power supply unit, the power supply units of the electrolysis devices comprising a transformer (42, 44, 46, 48) and a rectifier unit (50, 52, 54, 56, 58, 60, 62, 64), the transformer having a primary winding (66, 68, 70, 72) and a secondary winding (74, 76, 78, 80, 82, 84, 86, 88) connected to an AC voltage side of the rectifier unit. According to the invention, the primary winding of the transformer of at least a first of the electrolysis devices (40) is designed to be adjustable in stages, and the rectifier unit of said electrolysis device is designed to be operated in an uncontrolled manner, the rectifier unit of the power supply unit of at least a second of the electrolysis devices being designed to be operated in a controlled manner depending on the electrical energy that can be provided by the energy source.
Resumen de: AU2024230333A1
The present invention relates to a method for purifying an oxygen stream polluted by water, hydrogen and potentially nitrogen, said method comprising bringing the oxygen stream to be purified into contact with a zeolitic adsorbent material comprising at least one metal, in zero-valent metal form, or in oxidized form or in reduced form, and recovering purified oxygen streams. The invention also relates to the use of a zeolitic adsorbent material comprising at least one transition metal for the purification of oxygen, and to the use in industrial processes of oxygen thus purified.
Resumen de: AU2024230439A1
The present invention relates to a method for purifying a hydrogen stream polluted by water, oxygen and optionally nitrogen, said method comprising bringing the hydrogen stream to be purified into contact with a zeolite adsorbent material comprising at least one metal chosen from the metals from columns 3 to 12 of the periodic table of the elements, in zero-valent metal form, or in oxidized form or in reduced form, and recovering a purified hydrogen stream. The invention also relates to the use of a zeolite adsorbent material comprising at least one metal from columns 3 to 12 of the periodic table of the elements for the purification of hydrogen, and to the use of hydrogen thus purified in industrial processes.
Resumen de: KR20240032557A
According to the present invention, disclosed is a water electrolysis apparatus including a metal particle fluid electrode. The present invention comprises: a cathode; a first flow channel formed on the cathode; a cation exchange membrane (CEM) formed on the first flow channel; a second flow channel formed on the CEM; and an anode formed on the second flow channel, wherein the second flow channel includes metal particles and is used as a metal particle fluidic electrode.
Nº publicación: JP2025529492A 04/09/2025
Solicitante:
ティッセンクルップ・ヌセラ・アクチェンゲゼルシャフト・ウント・コンパニー・コマンディトゲゼルシャフトアウフアクチェン
Resumen de: CN119895081A
An electrolytic cell (1) for the electrolysis of chlor-alkali or alkaline water, comprising: two cell elements (2, 3), each cell element (2, 3) defining an electrode chamber (4, 5) by providing a rear wall (6) and side walls (7) of the electrode chamber (4, 5); electrodes (8, 9) respectively housed in each of the electrode chambers (4, 5); a sheet-like diaphragm (10) that extends in the height direction (H) and the width direction (W) of the electrolytic cell (1), is provided in a joint (11) between the two electrolytic cell elements (2, 3), and forms a partition wall (12) between the electrode chambers (4, 5); a plurality of support members (13) for supporting at least one electrode (8, 9) on a respective rear wall (6); wherein each support member (13) comprises: two support parts standing on the rear wall (6) and extending in the height direction (H) of the electrolytic cell (1); two feet (16, 17) connected to the respective supports (14, 15) at an angle and in planar contact with the rear wall (6); wherein the support portions of the support members (13) are connected to each other by means of an arch-shaped portion (18) bent outward toward the electrode (8) to be supported, and form an elastic bearing surface (19) for supporting the electrode (8); when the arch (18) deflects inwards, the bearing surface (19) increases.
BOPI
Sede Electrónica
