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712
resultados
Última actualización
04/05/2025 [06:59:00]
Resultados 175 a 200 de 712
Resumen de: AU2023315921A1
The invention relates to a method for operating an electrolysis system (2) comprising at least one electrolyser (4) for generating hydrogen (6) and oxygen (8) as products, and at least two downstream compressors (10) for compressing at least one product (6, 8) produced in the electrolyser (4). In order to ensure part-load operation of the electrolyser (2) that is optimised in terms of efficiency and is also cost-effective, during part load operation of the electrolyser (4), a first group (A) of compressors (10
Resumen de: EP4535518A1
Disclosed is a hybrid system in which a solid oxide electrolyzer cell (SOE), a solid oxide fuel cell (SOFC), and a carbon capture system (CCS) are coupled to each other, and more particularly to an SOE-SOFC-CCS hybrid system configured such that a solid oxide electrolyzer cell, a solid oxide fuel cell including a burner configured to burn off-gas, and a carbon capture system are systematically operated and such that by-products and waste heat generated as the result of operation thereof are recycled, whereby consumption of hydrogen and a fuel necessary for power production is minimized.
Resumen de: CN119278297A
The invention relates to a gas-permeable electron-conducting plate for use as a porous transport layer for an electrolytic cell and to a method for producing said gas-permeable electron-conducting plate, to a building unit for an electrolytic cell, and to an electrolytic cell.
Resumen de: CN119301307A
A separator (1) for water electrolysis, said separator (1) comprising, on at least one side thereof:-a surface area Smax,-a surface area SC for contacting an electrode surface, and-a channel (10) for evacuating bubbles, having a cross-section phi C, characterized in that:-the SC/Smax ratio is from 0.025 to 0.50, and-the cross-section phi C is sufficiently large to evacuate bubbles having a diameter of from 5 to 50 mu m.
Resumen de: EP4534734A1
A control device for a hydrogen production apparatus is a control device for controlling operation of a hydrogen production apparatus and includes: an estimated reaching time calculation unit configured to calculate, on the basis of a change rate of a pressure of a storing unit for storing hydrogen produced by the hydrogen production apparatus, an estimated reaching time for the pressure of the storing unit to reach a specified value; a start-up time acquisition unit configured to acquire a start-up time of the hydrogen production apparatus in accordance with a state of the hydrogen production apparatus; and a determination unit configured to determine a start-up timing for starting up the hydrogen production apparatus on the basis of a comparison between the estimated reaching time and the start-up time.
Resumen de: EP4535215A1
A simulation system and method for hydrogen production by water electrolysis. The simulation system for hydrogen production by water electrolysis comprises: a first simulation unit used for simulating a hydrogen production power system to obtain hydrogen production electrical parameters; a controller unit used for outputting a control instruction to control hydrogen production process parameters in a hydrogen production chemical system; a second simulation unit used for simulating the hydrogen production chemical system according to the hydrogen production electrical parameters and the control instruction so as to obtain a hydrogen production result; and a data interaction unit, the first simulation unit, the controller unit, and the second simulation unit being capable of performing data interaction by means of the data interaction unit. Joint simulation of complete chemical and electrical processes for hydrogen production by water electrolysis can be realized.
Resumen de: AU2023277213A1
The present invention is directed to piezo photocatalytic process for the production of hydrogen from water, wherein the process comprises the steps of: (a) providing non-metal-doped barium titanate which includes at least one defect; (b) contacting the non-metal-doped barium titanate provided in step (a) with water to form a mixture; and (c) subjecting the mixture formed in step (b) to: (i) actinic radiation; and (ii) mechanical force, to produce hydrogen from the water, as well as non-metal-doped barium titanate and methods of production thereof.
Resumen de: EP4534733A1
A laminate for a water electrolysis device includes a polymer electrolyte membrane and an electrode catalyst layer provided on one surface of the polymer electrolyte membrane. The electrode catalyst layer includes a catalyst, a polymer electrolyte, and a fibrous material. A membrane electrode assembly for a water electrolysis device includes the laminate for a water electrolysis device and a second electrode catalyst layer, and includes an electrode catalyst layer, a polymer electrolyte membrane, and a second electrode catalyst layer in this order.
Resumen de: EP4534725A1
A compression apparatus according to an aspect of the present disclosure includes: a compressor that generates compressed hydrogen at a cathode by an electrolysis of water or by oxidation and reduction of hydrogen generated by applying a voltage between an anode and the cathode having flexural rigidity lower than flexural rigidity of the anode; and a controller that, in startup or in shutdown, determines an abnormality based on a gas flow rate at an exit of the anode or a pressure at the cathode after supplying a testing gas from a testing gas supplier to the cathode.
Resumen de: EP4534518A1
The methane generation system according to the present invention includes a methane generation unit including an electrolysis device that electrolyzes water to obtain hydrogen and a methane reactor that obtains a fuel gas containing methane by a methanation reaction using the hydrogen; a reformer that reforms the fuel gas to obtain a reformed gas; a fuel cell that generates electricity by a reaction of obtaining a product gas from the reformed gas and an oxygen-containing gas; a recovery device that separates a recovery gas containing carbon dioxide from return fluid which is a part of the product gas; and a circulation path through which the recovery gas is guided to the methane generation unit.
Resumen de: AU2023326035A1
The invention relates to an electrolysis device (1) for producing hydrogen through electrochemical reaction from an aqueous alkali solution, wherein the electrolysis device (1) comprises an anodic half cell (2) and a cathodic half cell (3). The anodic half cell (2) and the cathodic half cell (3) are separated by means of a membrane (4) and the alkali solution can flow through the cathodic half cell (3). The anodic half cell (2) comprises an anodic electrode (5) and the cathodic half cell (3) comprises a cathodic electrode (6), wherein the anodic electrode (5), the cathodic electrode (6) and the membrane (4) form a membrane-electrode unit (7). Furthermore, in normal operation of the electrolysis device, an initial fill quantity of alkali solution in the cathodic half cell (3) can be changed only by diffusion processes through the membrane-electrode unit (7) and/or by electrochemical reaction of the alkali solution in the membrane-electrode unit (7).
Resumen de: JP2025052834A
【課題】高い反応活性を有し、効率よく水素を製造できる反応媒体を提供すること、および、効率よく水素を製造できる水素の製造方法を提供すること。【解決手段】本発明の反応媒体は、水を熱分解して水素を製造する方法において用いられる反応媒体であって、ＦｅとＭｇとＮｉとの複合金属酸化物を含むことを特徴とする。前記複合金属酸化物は、Ｆｅ０．３３Ｍｇ０．３３Ｎｉ０．３３Ｏｘで表されることが好ましい。本発明の水素の製造方法は、請求項１に記載の反応媒体を熱還元する第１の工程と、熱還元された前記反応媒体を水と接触させ、前記反応媒体を酸化するとともに水素を発生させる第２の工程とを有する。【選択図】なし
Resumen de: WO2024041728A1
A control unit (40) for a Power-to-Hydrogen (PtH) plant (100) is provided. The control unit (40) includes at least one model (41) and is configure to: calculate maximum efficiency point tracking of the PtH plant (100) by solving an objective function having a predetermined hydrogen production rate of the PtH plant or a predetermined amount of energy input to the PtH plant using the at least one model, wherein the control unit receives measured parameters indicative of status of components of the PtH plant as an input to the at least one model; determine one or more set points for a coordinated operation of the components of the PtH plant based on a solution obtained by solving the objective function; and provide the one or more set points to one or more of the components of the PtH plant to operate the PtH at the maximum efficiency point.
Resumen de: AU2022470695A1
A water electrolysis system including a container; a plurality of microcells located inside the container; the microcells are centered around a central axis of the container; a first bracket located on a first side of the microcells; a second bracket located on a second side of the microcells; a plurality of magnets mounted on the first and the second brackets, the magnets are placed in parallel to the microcells; a liquid inside the container. The first and the second brackets are adapted to be connected to a motor. The first and the second brackets rotate during the electrolysis process. The magnets on the first bracket produce a first magnetic field and the magnets on the second bracket produce a second magnetic field; and the first and the second magnetic fields have opposite polarity.
Resumen de: AU2023333919A1
A porous ion-permeable separator membrane with an asymmetric pore structure in which the top of the membrane (the side opposite the porous substrate) has smaller pores than the pores in the rest of the polymer coating (i.e., closer to the porous substrate) is described. The porous ion-permeable asymmetric composite membrane comprises polymers, inorganic particles, and a porous substrate which is stable at a pH of 8 or higher.
Resumen de: CN119173474A
Provided is a molybdenum carbide having a Mo2C crystal structure and having a carbon content of 6% or more with respect to the total mass (100 mass%) of the molybdenum carbide.
Resumen de: JP2025049881A
【課題】従来の水素製造方法では水素の発生比率は低く、大きな電力を使用する必要がある。【解決手段】負電極１０８の周囲には酸性の水溶液２２７が充填され、正電極１０７の周囲には血液またはヘモグロビンが充填される。正電極１０７と負電極１０８間には電極電圧制御回路１１４で電圧が印加される。負電極１０８では水素が発生し、水素は気体収集器１０９で収集される。正電極１０７では、電子を放出して、オキシヘモグロビンがメトヘモグロビンになり色が変化する。色の変化は色測定器２３４で測定する。色の変化が所定値以上に変化すると、メトヘモグロビンの比率が大きくなった判定し、ヘモグロビンを入れ替える。【選択図】図１
Resumen de: WO2025068933A1
The present invention relates to an integrated system for demineralization and/or purification of water and for the simultaneous production of hydrogen comprising a heat-dissipating element thermally connected to a system for demineralization and/or purification of water which is hydraulically connected to an electrochemical cell producing hydrogen, wherein the system for demineralization and/or purification of water is a system operating through the principle of thermal distillation via membrane and comprises at least two units, each comprising a first chamber, inside which waste water to be demineralized and/or purified flows under pressure and a second chamber, inside which demineralized and/or purified water flows under pressure in the opposite direction with respect to the direction of flow of the waste water, the two chambers being separated by a preferably microporous hydrophobic membrane, wherein the at least two units are placed thermally in series and hydraulically in parallel with continuous flow, wherein each unit is hydraulically connected to a source of waste water and a source of demineralized and/or purified water, in particular wherein each first chamber comprises an inlet portion, hydraulically connected to the source of waste water, for introduction into the first chamber of waste water, while each second chamber comprises an inlet portion, hydraulically connected to the source of demineralized and/or purified water, for introduction into the second chamber
Resumen de: US2025109516A1
Methods and systems for producing iron from an iron-containing ore and removing impurities found in the iron-containing ore are disclosed. For example, a method for producing iron comprises providing a feedstock having an iron-containing ore and one or more impurities to a dissolution subsystem comprising a first electrochemical cell; producing an iron-rich solution, in the dissolution subsystem; treating the iron-rich solution to remove at least a portion of one or more impurities by raising a pH of the iron-rich solution from an initial pH to an adjusted pH thereby precipitating at least a portion of the one or more impurities in the treated iron-rich solution; delivering the treated iron-rich solution to an iron-plating subsystem having a second electrochemical cell; second electrochemically reducing at least a first portion of the transferred formed Fe2+ ions to Fe metal; and removing the Fe metal from the second electrochemical cell thereby producing iron.
Resumen de: WO2025067765A1
The invention relates to an offshore electrolysis system (100) comprising: a wind turbine (1) with a platform (3) and with an electrolysis plant (5) which is arranged on the platform (3) and is connected to the wind turbine (1) in order to supply electrolysis current; and a heat supply device (7) which is coupled to the electrolysis plant (5) and is designed in such a way that heat can be transferred to the electrolysis plant by means of the heat supply device (7) during a standstill mode so as to maintain the temperature above a minimum temperature. The invention also relates to a method for operating a corresponding offshore electrolysis system. During a standstill mode, heat is transferred to the electrolysis plant (5) by means of the heat supply device (7) so as to maintain the temperature above a minimum temperature and prevent freezing of water-carrying components of the electrolysis plant (5).
Resumen de: WO2025072770A1
Provided herein are systems and methods for electrochemical COx reduction and hydrogen oxidation reactions to promote the reduction of carbon oxides (COx). Embodiments of the systems and methods may be used to produce carbon monoxide (CO) and water. In various embodiments, a reaction between carbon dioxide (CO2) and hydrogen gas (H2) occurs at the anode of a CO2 reduction electrolyzer, promoting the production of reduction products (e.g., CO). In some embodiments, the methods may utilize a feed stream of H2 gas from various sources. In some embodiments, a water electrolyzer upstream of the COx reduction electrolyzer is a source of H2 gas. In some embodiments, the systems and methods include downstream integration processes and related apparatus. In some embodiments, the downstream integration processes include Fischer-Tropsch processes.
Resumen de: WO2025067620A1
According to the invention it is provided a method for controlling a grid connected power converter having a DC side with a DC link and an AC grid side, and being configured to control power supply to a hydrogen electrolyzer stack. The power supply to the hydrogen electrolyzer stack is controlled by controlling the DC link to thereby control hydrogen production. The method comprises: determining a grid voltage reference; providing a grid forming control for controlling at least the phase angle of the voltage of the power converter using a grid forming controller, operating according to a grid forming algorithm, the grid forming controller being configured to emulate inertia through control of the voltage of the power converter towards the grid voltage reference; the grid forming controller emulating inertia by charging and discharging an inherent capacitance of the electrolyzer stack; monitoring at least one operating parameter of the hydrogen electrolyzer stack; and limiting a change in charging level of the inherent capacitance based on the monitored operating parameter of the electrolyzer stack.
Resumen de: US2025109345A1
The fuel production system includes a CH4 recoverer, an electrolyzer, a liquid fuel producer, a steam reformer that performs steam reforming of the methane and produces hydrogen, and a controller. The controller includes: a heat amount determiner that determines whether or not an amount of heat required to increase a temperature in the gasification furnace to a temperature required to gasify the biomass feedstock is less than a predetermined threshold; a H2 production rate determiner that determines whether or not a production rate of hydrogen produced by the electrolyzer is equal to or greater than a predetermined threshold; and a steam reforming controller that controls the steam reformer to perform the steam reforming, and introduces the hydrogen produced, into the gasification furnace, in a case where the heat amount determiner determines that the required amount of heat for the gasification furnace is less than the predetermined threshold, and the H2 production rate determiner determines that the production rate of hydrogen is less than the predetermined threshold.
Resumen de: AU2023359996A1
The invention relates to an electrolysis system (1) for generating hydrogen and oxygen as product gases, comprising an electrolysis module (3) and a process unit (5), wherein the process unit (5) has a reactant line (7) for supplying process water and a product line (9), each of which is connected to the electrolysis module (3), and the process unit (5) is equipped with a thermally insulating insulation device (11), comprising a thermal insulating material (17), such that a slow cooling of the process water is produced during a standstill operation.
Nº publicación: WO2025071890A1 03/04/2025
Solicitante:
HYAXIOM INC [US]
HYAXIOM, INC
Resumen de: WO2025071890A1
An illustrative example embodiment of an apparatus and method includes providing a weave body downstream of an electrolyzer, purifying hydrogen by demisting a hydrogen stream exiting the electrolyzer via flow through the weave body; and de-oxidizing the hydrogen stream during flow through the weave body.
BOPI
Sede Electrónica
