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959
resultados
Última actualización
02/11/2025 [06:56:00]
Resumen de: WO2024208614A1
- 27 - Method for use in controlling operation of a hydrogen production plant ABSTRACT The invention provides computer-implemented method for use in controlling operation of a hydrogen production plant, the method comprising determining a maximum available amount of energy of a predetermined energy category in a current time interval; determining a target minimum amount of the energy of the predetermined energy category to be used for hydrogen production in the current time interval; and determining hydrogen setpoints for the current time interval using the maximum available amount and the target minimum amount as constraints. Fig. 1b
Resumen de: AU2024286612A1
Disclosed are a system and method for the generation of hydrogen from a source of liquid comprising water. The system comprises a high fluid velocity electrolyzer comprising an inlet and an outlet, the inlet of the high fluid velocity electrolyzer fluidly connected to the source of liquid, and a gas fractionation system fluidly connected to the outlet of the high fluid velocity electrolyzer.
Resumen de: AU2024239221A1
This hydrogen production system is provided with: a solid oxide electrolytic cell (SOEC) that electrolyzes water vapor; a power supply device that applies a voltage equal to or greater than a thermal neutral voltage to the SOEC; and a water vapor generation device that generates at least a portion of water vapor to be supplied to the SOEC by heating water using surplus heat generation of the SOEC.
Resumen de: AU2024237817A1
The present invention relates to an electrolyser system (10) comprising at least one electrolyser (20), the electrolyser (20) comprising at least one steam inlet (41) and at least one off-gas outlet (38; 39), and a turbocharger (62) for compressing off-gas from the electrolyser (20). The turbocharger (62) comprises a drive fluid inlet, a drive fluid outlet, a compression fluid inlet, a compressed fluid outlet, a compressor (13) and a turbine (12). The turbine (12) is configured to drive the compressor (13). The drive fluid outlet of the turbocharger (62) is fluidically connected to the at least one steam inlet (41) of the electrolyser (20). The at least one off-gas outlet (38; 39) of the electrolyser (20) is fluidically connected to the compression fluid inlet of the turbocharger (62). The system (10) can further can comprise a steam source fluidically connected to the drive fluid inlet of the turbocharger (62) for powering the turbine (12) using pressurised steam.
Resumen de: JP2024140857A
To provide a hydrogen production system and an operation method of the hydrogen production system capable of suppressing the production cost of hydrogen generated by electrolysis of steam in a solid oxide electrolytic cell (SOEC) and expanding the range of the amount of steam which can be electrolyzed.SOLUTION: A hydrogen production system includes a solid oxide electrolytic cell (SOEC) for electrolysis of steam, a steam generator for heating feed water to generate steam, and a combustor for burning a part of hydrogen included in the steam discharged from the hydrogen electrode of the SOEC. The steam generator is configured such that at least a part of the supply water is heated by heat exchange between at least a part of the supply water and a gas containing combustion gas generated in the combustor to generate at least a part of the steam.SELECTED DRAWING: Figure 1
Resumen de: WO2025223961A1
The invention at hand relates to an electrolysis cell, a process for the production of hydrogen by electrolysis and a cell stack comprising a multitude of the electrolysis cells, wherein each cell comprises an anode compartment, a cathode compartment and a separator, wherein a sealing member seals the electrolysis cell volume from the surrounding, the electrolysis cell electrolyte feed and/or electrolysis cell electrolyte outlet are located in the cell volume and comprise means for reducing stray currents.
Resumen de: US2025333857A1
Provided herein are membrane electrode assemblies (MEAs) for COx reduction. According to various embodiments, the MEAs are configured to address challenges particular to COx including managing water in the MEA. Bipolar and anion-exchange membrane (AEM)-only MEAs are described along with components thereof and related methods of fabrication.
Resumen de: WO2025223600A1
The invention relates to a porous transport layer (1) for use in an electrolyzer, wherein the transport layer (1) has a plurality of layers (2-4) which are connected to one another, at least one of the layers (2) has a porosity of less than 75%, another layer (3) has a porosity of 75% to 90%, all of the layers (2-4) consist of metal and are integrally bonded to one another, and at least one of the layers (3) consists of a sheet material made of wire or an expanded metal mesh, said sheet material having a main plane and a 3D structuring perpendicular to the main plane such that flow channels are formed in conjunction with an adjacent layer (4, 2).
Resumen de: WO2025223592A1
It is an object of the invention to provide a reactor system based on an alkaline electrolysis system and an associated process for producing a synthetic fuel gas having a high proportion of oxygen from natural gas, biogas or exhaust gases from an internal combustion engine with hydrogen and oxygen formed in the electrolysis as fuel gas or synthesis gas. As a result of a high proportion of oxygen in the fuel gas of more than 20% by volume, the energy content of the new synthetic fuel gas is significantly higher than that of mixed gases already used in practice with a proportion of oxygen of less than 5% by volume. The arrangement of the reactor, including all additional systems, in a container allows largely standardized prefabrication on the part of the manufacturer of the reactor comprising the electrolysis system, including compliance with and installation of corresponding safety devices. The reactor system and the process for producing a fuel gas (25) from a carrier gas (11), e.g. natural gas (11), hydrogen, and oxygen utilize an alkaline low-voltage electrolysis system (3) which consists of a plurality of individual cells (4) within a reactor housing (2) and allows the fuel gas (25) to be formed in the individual cell (4) already during electrolysis. In spite of its high oxygen content, the fuel gas (25) is combustible but not explosive.
Resumen de: WO2025223593A1
The object of the invention is to use an electric generator system with an internal combustion engine in combination with a reactor system based on an alkaline electrolysis system for producing a fuel gas with a high oxygen content from a carrier gas, e.g. natural gas, and/or the exhaust gases of internal combustion engines and using the hydrogen and oxygen produced during the electrolysis process, and to provide a method for producing a fuel gas or synthesis gas with a high oxygen content by means of the reactor, wherein the energy input for producing the fuel gas is reduced and the water input is minimized compared to already known methods and systems. The system and the method for producing a fuel gas (25) from a carrier gas (11), e.g. natural gas (11), exhaust gases from internal combustion engines, hydrogen and oxygen, use an alkaline low-voltage electrolysis system (3), which consists of a plurality of individual cells (4) within a reactor housing (2) and allows the fuel gas (25) to be produced directly in the individual cell (4) during electrolysis. Despite its high oxygen content, the fuel gas (25) is combustible but not explosive.
Resumen de: DE102024204053A1
Offenbart sind eine Festoxid-Elektrolysezelle und ein Verfahren zu deren Herstellung.
Resumen de: US2025333863A1
Disclosed in the present disclosure are a square-meter-scale stainless steel integrated electrode with a surface modified by bimetallic sulfide, and a preparation method and application thereof. The preparation method includes the following steps: (1) performing ultrasonic cleaning on a stainless steel substrate with deionized water, acetone and ethanol in sequence, performing heating and soaking with a dilute hydrochloric acid solution, and finally, performing drying after washing and cleaning with deionized water to obtain the stainless steel substrate with a clean surface; (2) dissolving two transition metal cation salts and a sulfur source in an aqueous solution and performing stirring at a room temperature for even mixing; and (3) putting the stainless steel substrate with the clean surface obtained in step (1) into the solution of the step (2) for a heating reaction, washing an obtained sample with water after the reaction is finished, and then, performing drying.
Resumen de: US2025333859A1
Provided is an adhesive-fixed electrolysis module comprising a single stack, the single stack having a separator, a pair of bipolar plates, a pair of gaskets, a pair of diffusion layers, a pair of electrodes, and a cell frame, wherein the bipolar plates, the gaskets, the diffusion layers, and the electrodes are sequentially arranged on the cathode and anode sides, respectively, with respect to the separator, forming a symmetrical structure, wherein the separator, the bipolar plates, the gaskets, the diffusion layers, and the electrodes are stacked in a zero-gap manner within the cell frame, and wherein the bipolar plates are adhered and fixed to the cell frame using an adhesive, thereby simplifying product assembly and reducing assembly costs compared to a single stack fixing method using welding, riveting, bolting, etc. between conventional parts.
Resumen de: US2025333853A1
A hydrogen production system and a hydrogen production method includes: a heat exchanger that heats steam by using a heating medium heated by thermal energy at 600° C. or higher; a high-temperature steam electrolysis device that electrolyzes steam at 600° C. or higher to produce hydrogen by applying, to a high-temperature steam electrolysis cell, a voltage lower than an electric potential at a thermal neutral point at which Joule heating caused by application of a current and heat absorption caused by electrolysis reaction are balanced; and a heating device that heats the high-temperature steam electrolysis device by the steam.
Resumen de: US2025333854A1
A water electrolysis system that generates hydrogen and oxygen by electrolysis of water includes a water electrolysis cell including an anode, a cathode, and an electrolyte membrane sandwiched between the anode and the cathode, and a control device that controls electric power supplied to the water electrolysis cell, wherein the control device performs a potential changing process of changing a potential of the anode either or both of upon starting of the water electrolysis system and during continuous operation of the water electrolysis system, and the potential changing process includes a potential lowering process of lowering the potential of the anode to a predetermined potential.
Resumen de: US2025333852A1
A modular hydrogen generation system (“system”) comprises a high-pressure containment vessel (“vessel”) defining a hydrogen plenum. The system also comprises a hydrogen generation insert (“insert”) shaped to be received in the hydrogen plenum. The insert includes a cover, one or more proton-exchange membrane (“PEM”) cells, an oxygen-water separator; and a passive dual regulator with relative differential venting (“regulator”). The insert is inserted into the hydrogen plenum such that hydrogen and oxygen can be produced at an interior pressure of from 200 to 6,000 psi. The regulator receives oxygen from the oxygen-water separator and hydrogen from the hydrogen plenum and regulates pressure imbalances between an oxygen-side of the system, vents oxygen to an exterior of the high-pressure containment vessel, and vents hydrogen to an exterior of the vessel to allow collection of hydrogen and oxygen and avoid rupture of the one or more PEM cells during operation.
Resumen de: US2025333851A1
A contained hydrogen generation system (“system”) comprises a high-pressure containment vessel (“vessel”), one or more proton-exchange membrane (“PEM”) cells, an oxygen-water separator, and a passive dual regulator with relative differential venting (“regulator”). The vessel defines a hydrogen plenum. The PEM and the oxygen-water separator are disposed in the hydrogen plenum. The regulator includes a hydrogen fluid path in fluid communication with the hydrogen plenum, an exterior hydrogen storage vessel, and an exterior of the vessel, and also includes an oxygen fluid path in fluid communication with the oxygen-water separator, an exterior oxygen storage vessel, and an exterior of the vessel. The regulator regulates pressure imbalances between an oxygen-side of the system and a hydrogen-side of the system, and vents oxygen and hydrogen to an exterior of the vessel to allow collection of both hydrogen and oxygen and avoid rupture of a PEM in the one or more PEM cells.
Resumen de: US2025333858A1
The electrolysis device includes a plurality of plates that have a plurality of sets of aligned fluid openings. At least one of the sets of aligned fluid openings is configured for conveying high pressure hydrogen gas. At least one gasket, which has an annular shape and is made of an elastomeric material, surrounds at least one of the sets of aligned fluid openings to establish a fluid-tight seal between at least two of the plurality of plates. The at least one gasket has a generally constant cross-sectional shape around a central axis, the cross-sectional shape having a sealing surface that includes a pair of peaks that are spaced radially apart from one another and that includes a pair of elevated plateaus on opposite radial sides of the pair of peaks.
Resumen de: US2025333865A1
An electrocatalyst useful for forming hydrogen from water by the hydrogen evolution reaction. The electrocatalyst includes a titanium (Ti)-including substrate, an array of titanium dioxide (TiO2) nanotubes (TNTs) disposed on the Ti-including substrate, and cobalt oxyphosphide (CoOP) nanostructures disposed on the surface of the TNTs. The TNTs are crystalline, as observed by powder X-ray diffraction (PXRD). The CoOP is amorphous by PXRD, and the CoOP nanostructures are substantially spherical and have a mean size of 75 to 400 nanometers (nm).
Resumen de: US2025333867A1
An electrode for electrolysis, including: a conductive substrate; and a catalyst layer disposed on a surface of the conductive substrate, in which at least one of the following conditions (I) and (II) is satisfied:(I) the catalyst layer contains a ruthenium element and an iridium element, and a crystallite size is 50 Å or more and 100 Å or less, the crystallite size being calculated from a peak observed in a 20 range of 27° or more and 28.5° or less in an XRD spectrum, the XRD spectrum being obtained by subjecting the catalyst layer to X-ray diffraction measurement and(II) the catalyst layer contains (i) a ruthenium element, (ii) an iridium element, and (iii) at least one kind of metal element M selected from the group consisting of W, Zn, Mn, Cu, Co, V, Ga, Ta, Ni, Fe, Mo, Nb and Zr, in the catalyst layer.
Resumen de: US2025333860A1
Electrolysis unit including a plurality of electrolysis cells held against one another along a stacking axis (Oy) between a first intermediate end plate and a second intermediate end plate, the first end plate including a first smooth bore and the second end plate including a second smooth bore. A tie rod including a body provided, at a first end, with a first head and, at a second end, with a second head, and first tensioning means for tensioning it. An electrolyzer includes the electrolysis unit.
Resumen de: US2025333316A1
The invention relates to a system and a method for generating ammonia, wherein, in an ammonia reactor, ammonia (NH3) is generated from a synthesis gas, wherein the synthesis gas contains hydrogen (H2) and nitrogen (N2), wherein a nitrogren supply flow and a first heat exchanger are used, which are designed in such a way that the hot ammonia (NH3) flowing out of the ammonia reactor heats the nitrogen used as synthesis gas in the nitrogen supply flow.
Resumen de: US2025333868A1
A separator (1) for water electrolysis comprising on at least one side thereof:—a surface area Smax,—a surface area Sc for contacting a surface of an electrode, and—a channel (10) for evacuating gas bubbles having a cross section Φc, characterized in that:—a ratio Sc/Smax is from 0.025 to 0.50, and—the cross section Φc is large enough for evacuating gas bubbles having a diameter from 5 to 50 μm.
Resumen de: AU2024256387A1
The invention relates to a method (100) for producing hydrogen (103), wherein feed water is subjected to electrolysis (10) with a cathode gas (101) being obtained, wherein the cathode gas (101) 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 (101), wherein the process gas flow (102) contains at least some of the hydrogen, oxygen and feed water contained in the cathode gas (101), and wherein, in the process gas flow (102), at least some of the oxygen is subjected to an oxidative catalytic reaction with some of the hydrogen to form oxidation water, and wherein at least some of the feed water and the oxidation water in the process gas flow (102) are removed from the process gas flow (1029 in a water removal process. The catalytic reaction and the water removal process are carried out using one or more process units (41, 42), wherein the one process unit (41, 42) or each of the plurality of process units (41, 42) has a first adsorptive drying bed (4a), by means of which at least some of the feed water is removed from the process gas flow (102), a catalytic bed (4b) which is arranged downstream of the first drying bed (4a) and by means of which the catalytic reaction is carried out, and a second adsorptive drying bed (4c) which is arranged downstream of the catalytic bed and by means of which at least some of the oxidation water is removed from the process gas flow (102). The invention also pro
Nº publicación: AU2023443530A1 30/10/2025
Solicitante:
PLUG POWER INC
PLUG POWER INC
Resumen de: AU2023443530A1
A method for forming a recombination layer includes, for example, an ionomer and a nanocrystal catalyst disposed in the ionomer. A method for forming the recombination layer may include, for example, providing an ionomer dispersion, providing a compound having a catalyst having a charge, adding the catalyst in the compound to the ionomer to form a mixture, reducing the catalyst in the compound to a metal catalyst in the ionomer, and forming the mixture with the metal catalyst into a recombination layer for a proton exchange membrane.
BOPI
Sede Electrónica
