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Última actualización
14/06/2025 [07:18:00]
Resumen de: WO2024094453A2
A separator for alkaline hydrolysis comprising a porous layer, the porous layer comprising zirconium oxide particles, characterized in that the zirconium oxide particles have a particle size of 70 nm or less, measured using the Debye-Scherrer equation on the (-111) reflection of a powder X-ray diffraction pattern of the zirconium oxide particles.
Resumen de: WO2024094454A2
A separator for alkaline hydrolysis comprising a porous layer, the porous layer comprising inorganic particles, characterized in that the inorganic particles have a fraction of primary particles having a diameter above 100 nm of lower than 3 % by number, as measured by Transmission Electron Microscopy (TEM).
Resumen de: DE102023212354A1
Elektrolysesystem mit einem Stack (1), der einen Anodenraum (2) und einen Kathodenraum (3) aufweist und der dazu eingerichtet ist, Wasser elektrolytisch in Wasserstoff und Sauerstoff aufzuspalten, wobei der Kathodenraum (3) einen Einlass (9) und einen Auslass (10) aufweist. Dem Stack (1) ist ein Gas-Flüssig-Separator (11) zugeordnet, der über eine Ausleitung (12) mit dem Auslass (10) des Kathodenraums (3) verbunden ist und in dem Flüssigkeit von Gas getrennt wird, wobei der Gas-Flüssig-Separator einen Gasauslass (13) zum Abströmen des abgetrennten Gases aufweist. Der Gasauslass (13) mündet in einen zentralen Gas-Flüssig-Separator (25) zur Trennung von Flüssigkeit und Gas.
Resumen de: DE102023212440A1
Die Erfindung betrifft ein Offshore-Elektrolysesystem (100) umfassend eine Windkraftanlage (1) mit einem auf dem Meeresgrund verankerten Turm (19) und mit einer Elektrolyseanlage (5), wobei die Elektrolyseanlage (5) mit einer Versorgungsleitung (11) an die Windkraftanlage (1) angeschlossen ist, und wobei die Elektrolyseanlage (5) einen in einem Container (9) angeordneten Elektrolyseur (13) aufweist, wobei der Container (9) unterhalb des Meeresspiegels (25) angeordnet ist.Die Erfindung betrifft weiterhin ein Verfahren zum Betrieb eines entsprechenden Offshore-Elektrolysesystems. Dabei wird von einem unterhalb des Meeresspiegels (25) angeordneten Elektrolyseur (13) der Elektrolyseanlage (5) Wasser in Wasserstoff (H2) und Sauerstoff zerlegt, wobei der erzeugte Wasserstoff (H2) über eine Produktgasleitung (7) abtransportiert wird.
Resumen de: WO2025121289A1
Provided is a membrane electrode assembly capable of suppressing hydrogen crossover. The membrane electrode assembly is for solid macromolecule-type water electrolysis and comprises: an anode having a catalyst layer; a cathode having a catalyst layer; and a solid macromolecule electrolyte membrane disposed between the anode and the cathode. At least one of the catalyst layer in the anode and the catalyst layer in the cathode includes a fluorine-containing polymer having an ion exchange group, and having a unit having a cyclic ether structure.
Resumen de: WO2025122112A1
The invention relates to a hydrogen sulfide separation system (A) and method for producing pure hydrogen (30) with high efficiency and environmental sustainability for the energy sector, while also converting sulfur (40) into economic value by producing sulfuric acid (60) The system includes a gasification unit (100) to convert liquid hydrogen sulfide (10) into gaseous hydrogen sulfide (20), an electrolyzer (200) equipped with a palladium-alloy membrane (290) to separate hydrogen (30) and sulfur (40) through electrolysis, and an oxidation unit (300) to oxidize sulfur (40) using hydrogen (30) and oxygen (50), resulting in sulfuric acid (60). The method enhances energy efficiency, reduces operating costs, and offers a sustainable solution for hydrogen production.
Resumen de: US2025188621A1
Device for generating hydrogen gas and oxygen gas from water, comprising a case, which forms a hydrolysis chamber designed to contain an amount of water; electrode means that act as a cathode and an anode; and gas-separating means, disposed in the hydrolysis chamber between the cathode and the anode, which comprise a permeable membrane segment suitable for preventing the generated hydrogen gas and oxygen gas from passing through the permeable membrane segment and mixing together, the hydrolysis chamber being divided into a first portion that contains the cathode and a second portion that contains the anode, wherein the first and second chamber portions are in fluid communication with respective pipes for hydrogen gas and oxygen gas. Another object of the invention is a system for the same purpose, comprising at least one device as described above.
Resumen de: US2025188632A1
An electrolytic method of loading hydrogen into a cathode includes placing the cathode and an anode in an electrochemical reaction vessel filled with a solvent, mixing a DC component and an AC component to produce an electrolytic current, and applying an electrolytic current to the cathode. The DC component includes cycling between: a first voltage applied to the cathode for a first period of time, a second voltage applied to the cathode for a second period of time, wherein the second voltage is higher than the first voltage, and wherein the second period of time is shorter than the first period of time. The peak sum of the voltages supplied by the DC component and AC component is higher than the dissociation voltage of the solvent. The AC component is selected based on a local minimum of a Nyquist plot to minimize energy loss while maintaining hydrogen transport.
Resumen de: US2025188620A1
A new energy hydrogen production system and a control method therefor. In the new energy hydrogen production system, a new energy input module supplies power to electrolytic cells by means of a power conversion module; and a control system of the new energy hydrogen production system is used for controlling, according to the power of the new energy input module, the power conversion module to work, such that among N electrolytic cells in an operation state, at least N-1 electrolytic cells work in a preset load range. The preset load range is a corresponding load range having the highest system efficiency in an electrolytic cell working range division result prestored in the control system.
Resumen de: US2025188628A1
An electrolysis cell for chlor-alkali or alkaline water electrolysis comprises two cell elements each defining an electrode chamber by providing a back wall and sidewalls of the electrode chambers, an electrode accommodated in each of the electrode chambers, and a sheet-like separator extending in a height direction and a width direction of the electrolysis cell, the separator being interposed in a joint between the two cell elements and providing a separating wall between the electrode chambers, wherein at least one of the electrodes is made from a sheet of metallic mesh, which is supported by a plurality of webs attached to the back wall of the respective electrode chamber, the webs extending in the height direction of the electrolysis cell, and wherein a plurality of ribs extending in the width direction of the electrolysis cell is carried by the webs, wherein the electrode is disposed on the plurality of ribs.
Resumen de: US2025188633A1
The present invention relates to the generation of at least one electrolysis product, in particular to a hydropower-electrolysis system, a hydro power plant and a method for generating at least one electrolysis product. An electrolysis assembly includes a plurality of electrolysis cells configured to generate, upon provision of a direct electrical current, at least one electrolysis product from a supply medium. A hydropower assembly is electrically connected to the electrolysis assembly for operating the electrolysis cells of the electrolysis assembly based on electrical power generated by the hydropower assembly.
Resumen de: US2025188565A1
Improved processes and systems are disclosed for producing renewable hydrogen suitable for reducing metal ores, as well as for producing activated carbon. Some variations provide a process comprising: pyrolyzing biomass to generate a biogenic reagent comprising carbon and a pyrolysis off-gas; converting the pyrolysis off-gas to additional reducing gas and/or heat; reacting at least some of the biogenic reagent with a reactant to generate a reducing gas; and chemically reducing a metal oxide in the presence of the reducing gas. Some variations provide a process for producing renewable hydrogen by biomass pyrolysis to generate a biogenic reagent, conversion of the biogenic reagent to a reducing gas, and separation and recovery of hydrogen from the reducing gas. A reducing-gas composition for reducing a metal oxide is provided, comprising renewable hydrogen according to a hydrogen-isotope analysis. Reacted biogenic reagent may also be recovered as an activated carbon product. Many variations are disclosed.
Resumen de: US2025188629A1
A power control device for a hydrogen production system according to one aspect includes: a power generation device that generates electric power by using renewable energy; a hydrogen production device that produces hydrogen by using electric power generated by the power generation device; and a connector that connects the power generation device and the hydrogen production device to an electric power system. The power control device determines a power command value to be supplied to the hydrogen production device based on electric power generated by the power generation device and electric power that reversely flows to the electric power system so that hydrogen is produced in a state where a reverse power flow to the electric power system continuously occurs.
Resumen de: AU2023397261A1
The invention relates to an electrolysis system (1) with a pressure electrolyzer (3) for generating hydrogen (H
Resumen de: US2025188630A1
An oxynitride catalyst includes NiaMbNcOd, wherein M is Nb, Mn, or Co, a>0, b>0, c>0, d>0, and a+b+c+d=1. A hydrogen evolution device includes an anode and a cathode dipped in an electrolyte, and the anode includes the oxynitride catalyst. The oxynitride catalyst can be disposed on a support. The oxynitride catalyst may have a polyhedral structure.
Resumen de: DE102023134698A1
Die Erfindung betrifft ein Verfahren zum Herstellen einer Elektrode (10) für die Verwendung bei der alkalischen Elektrolyse von Wasser, das Verfahren umfassend Bereitstellen eines metallischen Substrats (12), Bereitstellen eines Beschichtungswerkstoffes (26), umfassend ein Pulver (28) aus einem Katalysatormaterial (20) und nicht-metallische Partikel (24), und Beschichten zumindest eines Abschnitts des Substrats mit dem Beschichtungswerkstoff. Die Erfindung betrifft auch derart herstellte Elektroden.
Resumen de: WO2025119989A1
The invention concerns a method of electrolysing water using an electrolyser comprising an anode; a cathode and optionally a separator; wherein at least one of the cathode and the separator comprises a substrate and a coating, and the coating comprises 9.5 to 35 wt% chromium; 10 to 75 wt% cobalt; and 10 to 60 wt% of one or more further transition metals and/or one or more non-metallic elements selected from C, P, N and B.
Resumen de: EP4567159A2
There is disclosed an electrolyser (10, 20, 50) for operation at supercritical conditions, in which chambers (200, 210, 520) for retaining respective fluid reaction products are separated by a porous wall which permits a flow of electrolyte fluid therethrough and which inhibits a reverse flow of the respective reaction product. There is also disclosed a method of operating an electrolyser.
Resumen de: CN119604469A
The present invention relates to a method for manufacturing an electrocatalyst for alkaline water electrolysis, said method comprising the steps of: (i) generating an aqueous electrolyte comprising suspended graphene and graphite nanoplatelets having lt in an electrochemical cell; the present invention relates to an electrolytic cell having a thickness of 100 nm, where the electrolytic cell comprises: a graphite negative electrode, (b) a graphite positive electrode, (c) an aqueous electrolyte comprising ions in a solvent, the ions comprising cations and anions, where the anions comprise sulfate anions; and wherein the method comprises the step of passing an electric current through the electrolysis cell to obtain exfoliated graphene and graphite nanosheet structures in the aqueous electrolyte in an amount greater than 5 g/l; (ii) forming an electroplating bath (2) comprising suspended graphene and graphite nanoplatelets in an amount greater than 2 g/l, said acidic electroplating bath comprising an aqueous solution of nickel sulfate and an electroplating solution comprising suspended graphene and graphite nanoplatelets in an amount greater than 5 g/l (thickness lt; 100 nm) of an aqueous electrolyte of step (i); and (iii) electrodepositing a combined layer of Ni or Ni alloy with graphene and graphite particles from the electroplating bath on a support to form an electrocatalyst.
Resumen de: AU2022322636A1
A highly crystalline mesoporous sulphur functionalized carbon nitride and a process for producing the same. The process including the steps of: providing a carbon nitride precursor material; mixing the carbon nitride precursor material with a metal salt to form a first mixture; and, thermally treating the first mixture to produce the crystalline carbon nitride.
Resumen de: US2025149602A1
A SOC stack system comprises one or more solid oxide cell stacks and multi-stream solid oxide cell stack heat exchanger(s).
Resumen de: EP4567079A1
Molybdenum carbide includes a Mo<sub>2</sub>C crystal structure, in which a content of carbon with respect to a total mass (100 mass%) of the molybdenum carbide is 6% or more.
Resumen de: CN119630834A
The invention relates to a method for heating a furnace comprising radiant tubes and capable of heat-treating a running steel product, comprising the following steps: i. Supplying H2 and O2 to at least one of said radiant tubes such that said H2 and said O2 combine into heat and steam; ii. Recovering said steam from said at least one of said radiant tubes; iii. Electrolyzing the steam to produce H2 and O2; iv. Supplying said H2 and O2 produced in step iii to at least one of said radiant tubes such that said H2 and O2 combine into heat and steam.
Resumen de: EP4567157A2
An electrolyzer system includes stacks of electrolyzer cells configured receive steam and air, and output a hydrogen product stream and an oxygen exhaust stream, and a first heat pump configured to extract heat from the oxygen exhaust stream to generate a first portion of the steam provided to the stacks.
Nº publicación: EP4567158A1 11/06/2025
Solicitante:
MITSUBISHI HEAVY IND LTD [JP]
Mitsubishi Heavy Industries, Ltd
Resumen de: EP4567158A1
Provided is a hydrogen production system (100) including: an electrolysis module (19) that supplies steam to a hydrogen electrode (11) including a metal component and produces hydrogen through steam electrolysis; a hydrogen storage facility (40) that stores the generated hydrogen; a steam supply unit (20) that supplies steam to the hydrogen electrode (11); a regulation unit (50) that regulates a supply amount of the hydrogen supplied from the hydrogen storage facility (40) to the hydrogen electrode (11) and a supply amount of the steam supplied from the steam supply unit (20) to the hydrogen electrode (11); and a control device (80) for controlling the regulation unit (50) to switch a heating medium supply state in which a heating medium is supplied from a heating medium supply unit (70) to the hydrogen electrode (11) to a steam supply state in which steam is supplied from the steam supply unit (20) to the hydrogen electrode (11), in response to the electrolysis module (19) exceeding a first switching temperature when activating the electrolysis module (19).
BOPI
Sede Electrónica
