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623
resultados
Última actualización
23/04/2025 [07:14:00]
Resultados 75 a 100 de 623
Resumen de: EP4534728A1
The present invention relates to circular carbon process for transporting energy comprising:a first step, wherein hydrogen is produced via water electrolysis,a second step, wherein the hydrogen produced in the first step and granular pyrolytic carbon produced in the fourth step are reacted to hydrocarbons,a third step, wherein the hydrocarbons produced in the second step are fed into a gas grid,a fourth step, wherein the hydrocarbons are taken from the gas grid, and hydrocarbons are decomposed to hydrogen and granular pyrolytic carbon,a fifth step, wherein the granular pyrolytic carbon produced in the fourth step is transported to a production site of the hydrating gasification of step two,wherein the hydrocarbons decomposition of step four is conducted in a moving or fixed bed of solid substrates and wherein the produced granular pyrolytic carbon has a bulk density in the range of 0.5 to 1.5 g/cc and has a particle size of 0.1 mm (d10) to 10 mm (d90).
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: TW202409348A
An alkaline electrolyzer system comprising an electrochemical cell in proximity to a spacer frame is provided. The spacer frame contains a polymer composition that includes a polymer matrix that contains at least one polyarylene sulfide.
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: EP4534197A1
The present disclosure relates to a catalyst for decomposition of ammonia and a method for decomposition of ammonia.
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: 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: 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: 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: 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: WO2025065871A1
An off-grid hybrid electrolytic hydrogen production system provided in the present application comprises a new energy power generation unit and an energy storage unit. A power conversion unit converts electric energy output by the new energy power generation unit and the energy storage unit into electric energy suitable for hydrogen production. An electrolysis unit comprises a proton exchange membrane hydrogen production module and a solid oxide electrolysis module, used to produce hydrogen after the introduction of electric energy. A controller uses control of charge and discharge of the energy storage unit to track an electric energy fluctuation value output by the new energy power generation unit, so that a value of total electric energy power fluctuation output by the new energy power generation unit and the energy storage unit is within a set range. The described solution provided by the present application can improve the hydrogen production efficiency of the entire hydrogen production system, and ensure that the hydrogen production system can achieve off-grid operation. Moreover, the present application eliminates the influence of power generation fluctuation of a new energy power generation unit on a hydrogen production result, by means of causing the total power fluctuation output by the new energy power generation unit and the energy storage unit to be within a set range.
Resumen de: US2025109506A1
A system for generating hydrogen includes a chamber configured to receive a fluid, and a first end plate and a second end plate configured to be positioned within the chamber and defining a longitudinal axis between first end plates. The system further includes a plurality of plates positioned between the first end plate and the second end plate, configured to be submerged in the fluid, and including: a cathode plate, an anode plate, and a semi-permeable membrane plate positioned between the cathode plate and the anode plate and configured to allow the passage of some elements therethrough and to block the passage of other elements therethrough. The system further includes at least one plasma source configured to be positioned within the fluid on an axial end of the plurality of plates and configured to generate a directed flow of plasma through the chamber along the axis.
Resumen de: WO2025070387A1
Provided are: a hydroxy ion conductive membrane containing a porous base material and a hydroxy ion conductive polymer disposed at least in pores of the porous base material, wherein the hydroxy ion conductive film has a thickness of 5 μm or more and less than 50 μm, and the polymer contains a constituent component (I) derived from a polyfunctional polymerizable monomer having two or more atoms of at least one kind of atom among oxygen atom, sulfur atom and nitrogen atom in total in a structural moiety other than a polymerizable group by 50 mol% or more of the constituent components of the polymer; a method for producing the hydroxy ion conductive membrane; a membrane electrode assembly, and a hydrogen production method and a hydrogen production system comprising the membrane electrode assembly.
Resumen de: WO2025070388A1
Provided are a membrane electrode assembly, a hydrogen production method, and a hydrogen production system. The membrane electrode assembly has a structure in which a cathode catalyst layer, a hydroxy ion conducting membrane, and an anode catalyst layer are laminated in this order, wherein the tensile strength (a) and the elongation at break (b) of a water-swellable body of a polymer contained in the cathode catalyst layer and/or the anode catalyst layer and the tensile strength (c) and the elongation at break (d) of a water-swellable body of a hydroxy ion conducting polymer constituting the hydroxy ion conducting membrane satisfy the following relationships (Ri) and (Rii). (Ri): Tensile strength (a)>tensile strength (c), (Rii): Elongation at break (b)>elongation at break (d)
Resumen de: WO2025071051A1
The present invention relates to a self-power generation system designed to rapidly produce electricity by directly supplying the hydrogen generated through the electrolysis of ethanol or green ammonia, as it is, to a stack and to enable the produced electricity to be supplied and utilized by power-demanding facilities such as households, factories, or electric vehicle charging stations. The self-power generation system is configured to include: a reformer for generating hydrogen by electrolyzing ethanol or green ammonia; a stack composed of one or more fuel cells that induce an electrochemical reaction between the hydrogen supplied through a transfer pipe connected to the reformer and oxygen from air supplied externally thus to produce electricity and heat; an air supply unit for delivering air to the stack, and a power control unit for supplying the electricity produced in the stack to external sources and storing excess electricity.
Resumen de: WO2025071230A1
The present invention relates to a polymer electrolyte membrane which is used in an energy device, such as a fuel cell or a water electrolysis system, in which a specification standard for lowering hydrogen gas permeability and increasing hydrogen ion conductivity and accordingly, maximizing selectivity, is quantified through small angle X-ray scattering (SAXS) analysis.
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.
Resumen de: US2025109513A1
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: 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: 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: WO2025067772A1
The invention relates to an electrolysis system (100) comprising: a wind turbine (1); an electrolysis plant (5) which is connected to the wind turbine (1) in order to supply electrolysis current, wherein an island network is implemented without connection to a power supply network; and a heat supply device (7) which is coupled to the electrolysis plant (5) and can be operated with a working medium (23), and which has an evaporator (13) and a condenser (11), and which is designed in such a way that, during a standstill mode, condensation heat of the working medium (23) can be transferred to the electrolysis plant (5) by means of the condenser (11) so as to maintain the temperature above a minimum temperature. During a standstill mode, the heat supply device (7) evaporates a working medium and condenses the evaporated working medium (23), condensation heat being generated and transferred to the electrolysis plant (5) so as to maintain the temperature above a minimum temperature and prevent freezing of water-carrying components of the electrolysis plant (5).
Nº publicación: WO2025067773A1 03/04/2025
Solicitante:
SIEMENS ENERGY GLOBAL GMBH & CO KG [DE]
SIEMENS ENERGY GLOBAL GMBH & CO. KG
Resumen de: WO2025067773A1
The invention relates to an offshore electrolysis system (100) comprising: a wind turbine (1) having a platform (3) and 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 water supply device (7) which is connected to the electrolysis plant (5) and has a water collector (13) which is designed such that it is possible, without relying on seawater, to obtain water with little or no salt content which can be used as feed water for operating the electrolysis plant (5). The invention also relates to a method for operating a corresponding offshore electrolysis system (100), wherein, without relying on seawater, water is obtained in a water collector (13), the obtained water being of a quality with little or no salt content.
BOPI
Sede Electrónica
