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772
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Última actualización
30/09/2025 [06:57:00]
Resultados 200 a 225 de 772
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: AU2024224275A1
A process for the reaction of aluminium with water comprising the steps of adding aluminium metal to an aqueous solution comprising potassium hydroxide at a concentration of between 0.1M and 0.4M and a surfactant; agitating the mixture of previous step; and collecting generated hydrogen. A composition for use in such a process for reacting aluminium with water, comprising potassium hydroxide and a surfactant.
Resumen de: AU2024209628A1
The invention provides devices, systems, and methods for providing hydrogen gas mixtures to a subject. The invention allows hydrogen gas mixtures to be provided at a rate that does not restrict normal or even elevated breathing.
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: 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: 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: 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: 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: 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: 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.
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.
Resumen de: US2024109772A1
A system and method for producing hydrogen, including steam reforming elemental sulfur to generate hydrogen gas and sulfur dioxide, to give a mixture including hydrogen gas, sulfur dioxide, elemental sulfur gas, and water vapor, removing the elemental sulfur gas to give a process gas including the hydrogen gas, sulfur dioxide, and water vapor, and isolating the hydrogen gas or a hydrogen gas rich stream.
Resumen de: AU2023331556A1
The invention relates to a photoelectric cell with a silicon carbide electrode (4) for photocatalytic production of hydrogen and to a production method for same. The cell has, on one side of the silicon carbide electrode (4), a window (2) for letting in light (5) and, on the other side of the silicon carbide electrode (4), an aqueous electrolyte (10) and a counter electrode (6). The cell is electrolyte-free on the side of the silicon carbide electrode (4) facing the window. The silicon carbide electrode (4) is preferably produced by coating a substrate (3) with silicon carbide (4).
Resumen de: AU2023433484A1
The present invention discloses an electrode plate of an electrolysis apparatus and an electrolysis apparatus to which the electrode plate is applied. A direct current power supply is connected to the electrolysis apparatus and an electrolyte is injected into the electrolysis apparatus, to convert electric energy into chemical energy. The electrode plate includes a silicon-based electrode plate made of a doped conductive silicon material. The silicon-based electrode plate is electrically connected to the direct current power supply, and a flow channel is disposed on at least one surface of the silicon-based electrode plate, so that the electrolyte is input into the electrolysis apparatus through the silicon-based electrode plate, to implement an electrochemical reaction and output a reaction product. In the present invention, on a basis of maintaining good mechanical support and sealing function, material and process costs of the electrode plate of the electrolysis apparatus are significantly reduced, an overpotential of the electrochemical reaction for producing the reaction product is reduced, and an electrolysis reaction rate per unit area in the electrolysis apparatus is increased. Therefore, an operating voltage is effectively reduced at a same electrochemical reaction rate, and energy conversion efficiency of the electrochemical reaction is finally significantly improved.
Resumen de: CN119866395A
A membrane electrode assembly (MEA) for generating hydrogen gas in a water electrolyser is provided. The MEA comprises a polymer electrolyte membrane (REM); a cathode comprising a cathode catalyst on a first side of the REM; an anode comprising an anode catalyst on a second side of the REM; and a platinum-ruthenium (Pt-Ru) catalyst on a second side of the REM to electrochemically convert hydrogen to hydrogen cations in use. The Pt-Ru catalyst is in electrical contact with the anode and in contact with the REM ions.
Resumen de: CN119866392A
A coating method for an electrolytic cell assembly is provided. The method includes coating at least a portion of the component with an acidic solution of platinum cations, and reducing the coated platinum cations with a reducing agent to form a layer of platinum metal on the component.
Resumen de: KR20250132174A
본 발명은 세정 공정을 통하여 촉매금속 그래뉼의 표면이 활성화(Activate)된 상태를 유지하도록 하여 물과의 장시간 화학 반응 과정에서 촉매금속 그래뉼의 표면에 산화 피막이 형성되는 부동태화(Passivation) 현상을 억제하고, 이로부터 수소수의 수율을 크게 높일 수 있는 연속식 수소수 제조장치를 제공함에 있다. 상기 수소수 제조장치는 반응관, 물 공급관, 수소수 배출부, 세정액 공급부, 세정액 배출부, 제어부를 포함한다. 반응관은 내부의 반응 공간에 입자상의 촉매금속 그래뉼이 수용된다. 물 공급관은 반응 공간과 연결되며, 반응 공간에 물을 공급한다. 수소수 배출부는 반응 공간과 연결되며, 촉매금속 그래뉼과 물의 반응으로 생성된 수소수를 배출한다. 세정액 공급부는 반응 공간과 연결되며, 부동태화된 촉매금속 그래뉼을 세정하기 위하여 반응 공간에 세정액을 공급한다. 세정액 배출부는 반응 공간과 연결되며, 촉매금속 그래뉼을 세정한 세정액을 배출한다. 제어부는 반응 공간에서 배출되는 수소수의 용존 수소량과 미리 설정된 기준 용존 수소량을 비교하여, 반응 공간에 물을 공급하여 수소수를 생성하는 반응 시간 및 반응 공간에 세정액을 공급하여 촉매금속 그래뉼을 세정하는 세정 시간을 조절한다.
Nº publicación: KR20250132460A 04/09/2025
Solicitante:
다이옥시클
Resumen de: WO2024110874A1
Methods and systems related to valorizing carbon dioxide are disclosed. A disclosed system includes a reverse water gas shift (RWGS) reactor, a carbon dioxide source connection fluidly connecting a carbon dioxide source to the RWGS reactor, an electrolyzer having an anode area and a cathode area, and a carbon monoxide source connection fluidly connecting the RWGS reactor to the cathode area. The RWGS reactor is configured to generate, using a volume of carbon dioxide from the carbon dioxide source connection, a volume of carbon monoxide in an RWGS reaction. The electrolyzer is configured to generate, using the electrolyzer and a reduction of the volume of carbon monoxide from the carbon monoxide source connection and an oxidation of an oxidation substrate, a volume of generated chemicals including hydrocarbons, organic acids, alcohol, olefins, or N-rich organic compounds.
BOPI
Sede Electrónica
