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WATER ELECTROLYSIS SYSTEM

Resumen de: US2025250687A1

A water electrolysis system includes a flow rate adjusting valve for relatively changing a first flow rate which is a flow rate of water flowing through a first flow path portion extending from a first water lead-out unit, and a second flow rate which is a flow rate of water flowing through a second flow path portion extending from a second water lead-out unit.

MESH OXYGEN ELECTRODE WITH SQUARE MACROPORES FOR ANION-EXCHANGE MEMBRANE UNITIZED REGENERATIVE FUEL CELL AND ANION-EXCHANGE MEMBRANE UNITIZED REGENERATIVE FUEL CELLE INCLUDING THE SAME

Resumen de: KR20250118913A

본 발명은, 평행하게 배열된 복수의 탄소나노튜브를 포함하는 탄소나노튜브 층을 2개층 이상 적층하여 이루어지는 탄소나노튜브 구조체 및 상기 탄소나노튜브 구조체 상에 형성된 촉매층을 포함하되, 상기 탄소나노튜브 구조체에 포함된 임의의 탄소나노튜브 층에 포함된 평행하게 배열된 복수의 탄소나노튜브가, 상부 또는 하부에 이웃한 탄소나노튜브 층에 포함된 평행하게 배열된 복수의 탄소나노튜브와 직교해 형성된 사각형의 매크로 기공을 포함하는 것을 특징으로 하는, 음이온 교환막 일체형 연료전지용 산소 전극 및 이를 포함하는 음이온 교환막 일체형 연료전지에 대한 것이다.

CATALYST FOR HYDROGEN EVOLUTION REACTION CONTAINING RUTHENIUM-BASED ALLOY, WATER ELECTROLYSIS ELECTRODE CONTAINING THE SAME, AND METHOD OF MANUFACTURING THE SAME

Resumen de: US2025250698A1

Disclosed herein are a catalyst for a hydrogen evolution reaction, a water electrolysis electrode including the same, and a method of manufacturing the same, wherein the catalyst can be manufactured at room temperature, and catalyst diversity can be given through an alloy structure including ruthenium and two or more metals. According to the present disclosure, the catalyst can be manufactured at room temperature due to characteristics of an electroplating manufacturing method, and the catalyst diversity can be given through the alloy structure that includes ruthenium and two or more metals.

MEMBRANE ELECTRODE ASSEMBLY WITH GRADED GAS RECOMBINATION LAYER

Resumen de: US2025250694A1

A membrane electrode assembly includes a cathode portion disposed on one end and an anode portion disposed on an opposite end from the cathode portion. The membrane electrode assembly also includes a cathode ionomer layer disposed adjacent the cathode portion and an anode ionomer layer disposed adjacent the anode portion. Further, the membrane electrode assembly may include one or more support layers disposed between the cathode ionomer layer and the anode ionomer layer. Additionally, the anode ionomer layer includes a plurality of gas recombination catalysts in a graded dispersion such that a portion of the anode ionomer layer disposed closer to the anode portion includes a higher concentration of gas recombination catalysts than a portion of the anode ionomer layer disposed closer to the cathode portion.

REACTOR WITH ADVANCED ARCHITECTURE FOR THE ELECTROCHEMICAL REACTION OF CO2, CO AND OTHER CHEMICAL COMPOUNDS

Resumen de: US2025250695A1

A platform technology that uses a novel membrane electrode assembly, including a cathode layer, an anode layer, a membrane layer arranged between the cathode layer and the anode layer, the membrane conductively connecting the cathode layer and the anode layer, in a COx reduction reactor has been developed. The reactor can be used to synthesize a broad range of carbon-based compounds from carbon dioxide and other gases containing carbon.

USE OF OXYHYDROGEN MICROORGANISMS FOR NONPHOTOSYNTHETIC CARBON CAPTURE AND CONVERSION OF INORGANIC AND/OR Cl CARBON SOURCES INTO USEFUL ORGANIC COMPOUNDS

Resumen de: US2025250594A1

Compositions and methods for a hybrid biological and chemical process that captures and converts carbon dioxide and/or other forms of inorganic carbon and/or CI carbon sources including but not limited to carbon monoxide, methane, methanol, formate, or formic acid, and/or mixtures containing CI chemicals including but not limited to various syngas compositions, into organic chemicals including biofuels or other valuable biomass, chemical, industrial, or pharmaceutical products are provided. The present invention, in certain embodiments, fixes inorganic carbon or CI carbon sources into longer carbon chain organic chemicals by utilizing microorganisms capable of performing the oxyhydrogen reaction and the autotrophic fixation of CO2 in one or more steps of the process.

PHOTOCATALYTIC UNIT FOR THE PRODUCTION OF HYDROGEN FROM WATER, AND SOLAR PLANT COMPRISING SAID PHOTOCATALYTIC UNIT

Resumen de: US2025250164A1

The invention relates to a photocatalytic unit for the production of hydrogen from water, comprising: (i) a photoreactor comprising a plurality of tubes, wherein said tubes internally comprise a photocatalyst, and are adapted for internally conducting a stream of water vapor; and absorbing external solar radiation focused on said tubes; and (ii) a plurality of solar reflectors adapted for concentrating incident solar radiation on the tubes of the photoreactor. Advantageously, the tubes of the photoreactor are arranged in a plane substantially perpendicular to the ground, and the solar reflectors w are arranged at both sides of said plane. The invention also relates to a solar plant for generating hydrogen comprising, at least, one photocatalytic unit according to any of the embodiments herein described, and a water vapor stream source connected to the photocatalytic unit.

CATALYTIC PRODUCTION OF HYDROGEN FROM WATER

Resumen de: US2025250165A1

Processes of photocatalytically generating molecular hydrogen (H2) and systems for carrying out the processes. Liquid water is contacted with an amount of a ID and/or 2D carbon-doped nanofilament-based photocatalyst material composition and a hole scavenger chemical, optionally under an inert gas purge, at temperature of 100° C. or less, generating gaseous molecular hydrogen by irradiating the liquid water, the hole scavenger chemical, and the photocatalyst for about 1 to 300 hours with at least one sun illumination (UV-Vis light (250-650 nm)).

MODULAR-STACKABLE-LONG DURATION STORAGE THROUGH HYDROGEN PRODUCTION

Resumen de: US2025250696A1

Hydrogen is produced using high temperature heat from a progressive heat collection system that utilizes sun and air for collection and transfer of heat. Thermal energy from the sun superheats the water into steam and also powers a Stirling engine based electrical generator for operating a high temperature steam electrolyzer.

PROCESS FOR THE PREPARATION OF SYNGAS FROM CARBONACEOUS WASTE MATERIAL

Resumen de: WO2025163482A1

Process for the production of syngas from carbonaceous waste material and CO2 comprising the following stages: a stage a) comprising the reaction R1 in which the carbonaceous material is reacted with carbon dioxide to obtain carbon monoxide according to the following reaction scheme: R1 CO2 + C = 2 CO; a stage b) of producing H2 and adding it to the carbon monoxide obtained in stage a) to obtain syngas, wherein stage b) comprises at least one of the following stages: bl) the carbon monoxide from the previous stage is reacted with water vapour to obtain carbon dioxide and hydrogen according to the following reaction scheme: R2 CO + H2O = CO2 + H2 b2) producing hydrogen by means of electrolysis of water, which is added to the carbon monoxide from stage a). The invention also relates to the unit in which stages a) and bl) are conducted as well as the related apparatus comprising the aforementioned unit.

A METHOD FOR CONTROLLING A GREEN HYDROGEN PRODUCTION SYSTEM

Resumen de: WO2025163136A1

A method for controlling a green hydrogen production system (100; 100'), comprising geographically distributed power generating nodes (10, 300; 300') each having at least one node center (320; 320.1, 320.2, 320.3, 320.4) and at least one electrolyzer (13) for generating green hydrogen within the system from the produced electrical energy, wherein each the power generating node (10, 300; 300') comprises multiple PV units (12; 312) and multiple wind turbine generators (WTG) (11; 301...316) as power generating units and wherein the multiple wind turbine generators units (WTG) (11; 301...316) are located in geographically dispersed sites surrounding the node center(s) (320; 320.1, 320.2, 320.3, 320.4), wherein the installed capacity (IC) of the electrolyzer (13) and all other energy consuming devices in the system is smaller than the sum of maximum capacities (MG) of all PV units (12; 312) and wind turbine generators (11; 301...316) available for operation together, wherein the method comprises at least the following steps: a) an energy demand value (EDV) of electrical power required for constantly operating the electrolyzer and other consumers is defined wherein EDV < IC; b) weather conditions in proximity of the power generating units and in windward direction of the PV units (312) are constantly monitored; c) based on weather conditions acquired from monitoring, an expected energy yield value (EEY) is calculated separately for each type of power generating unit and/or for each

REDUCING COMPOSITIONS AND PROCESSES FOR PRODUCING THE SAME

Resumen de: US2025250187A1

The present disclosure describes a process for producing a reducing liquid comprising providing a liquid; providing a reducing gas and/or a metasilicate; and infusing the reducing gas and/or the metasilicate to the liquid, for the reducing gas and/or metasilicate to react with the liquid to produce a reducing liquid that has an oxidation reduction potential (ORP) value of about −100 mV or more negative. Further described is the process for preparing a reducing gas, which includes the steps of preparing an activator, introducing the activator into an electrolytic reactor, adding water, and applying a direct current to produce the reducing gas. Also described is a system for producing a reducing liquid.

Electrochemical Cell Assembly with Insert

Resumen de: US2025253377A1

The invention relates to an electrochemical cell assembly including a first end plate assembly, a stack of cell repeat units, and a second end plate assembly. The stack is held in a compressed state between the first end plate assembly and the second end plate assembly. The first end plate assembly and/or the second end plate assembly each include an end plate. The electrochemical cell assembly includes an insulation plate located between the end plate and the stack. At least one through-hole is provided in the insulation plate and a sealing insert is provided in the at least one through-hole of the insulation plate, the sealing insert defining a fluid pathway along the stacking direction. The invention also relates to an end plate assembly and a method of manufacturing an electrochemical cell assembly.

ELECTROLYSIS DEVICE, SYSTEM CONSISTING OF A PLURALITY OF ELECTROLYSIS DEVICES, AND METHOD FOR OPERATING THE ELECTROLYSIS DEVICE OR THE SYSTEM

Resumen de: WO2025163032A1

The invention relates to an electrolysis device (10) for generating hydrogen from water using an electric current, having a cell stack (11) comprising a plurality of cell stack elements (12) in the form of electrolysis cells; a first pressure sensor (28) for detecting a first hydrogen-side pressure; a second pressure sensor (29) for detecting a second hydrogen-side pressure; and a control device (30) which checks whether the electrolysis device (10) has a leak on the basis of the first pressure measured by the first pressure sensor (28), the second pressure measured by the second pressure sensor (29), and the electric current applied to the electrolysis device (10) for the electrolysis process.

ELECTROLYSIS SYSTEM WITH AN OXYGEN PRE-SEPARATION FUNCTION

Resumen de: WO2025162963A1

The invention relates to a system consisting of a plurality of electrolysis devices (10), which are accommodated in a frame or shelf (19), for generating hydrogen from water using an electric current. Each electrolysis device (10) has at least the following: a cell stack (11) consisting of a plurality of cell stack elements (12) in the form of electrolysis cells; end plates (14, 15) lying opposite each other, wherein the cell stack (11) consisting of the cell stack elements (12) is provided and compressed between the end plates (14, 15); at least one water supply connection (16) which is formed on the end plates (14, 15) and via which water can be supplied to the respective electrolysis device (10); and at least one water discharge connection (17) which is formed on the end plates (14, 15) and via which water and oxygen can be discharged from the respective electrolysis device (10). At least one pre-separator (20) for oxygen is installed on the frame or shelf (19) and/or in the frame or shelf (19) and/or in the immediate vicinity of the frame or shelf (19) in order to separate oxygen from the water discharged from the electrolysis devices (10).

VERFAHREN ZUR STEUERUNG EINES SYSTEMS ZUR ERZEUGUNG VON GRÜNEM WASSERSTOFF

Resumen de: DE102024103045A1

Verfahren zur Steuerung eines Systems zur Erzeugung von grünem Wasserstoff, wobei mehrere Photovoltaikanlagen (12) und mehrere Windenergieanlagen als Stromerzeugungseinheiten zur Erzeugung von elektrischer Energie und mindestens ein Elektrolyseur zur Erzeugung von grünem Wasserstoff genutzt werden, wobei die installierte Leistung (IC) des Elektrolyseurs und aller anderen energieverbrauchenden Vorrichtungen in dem Kraftwerk kleiner ist als die Leistung der Summe der maximalen Leistung (MC) der Photovoltaikanlagen (12) und der Windenergieanlagen zusammen, mit folgenden Schritten:a) Definition eines Energiebedarfswerts (EBW) der für den Elektrolyseur und andere Verbraucher erforderlichen elektrischen Leistung, wobei EBW < IC ist;b) Überwachung der Wetterverhältnisse in der Nähe der Stromerzeugungseinheiten und in Luv der Photovoltaikanlagen (12);c) Berechnung eines erwarteten Energieertragswerts (EEW) für jeden Typ von Stromerzeugungseinheit basierend auf den Wetterverhältnissen;d) Zuweisen einer individuellen Arbeitslast für die Photovoltaikanlagen (12) und die Windenergieanlagen, die nach dem folgenden Priorisierungsschema ausgewählt wird:i. wenn der erwartete Energieertragswert EEW(PV) der Photovoltaikanlagen (12) allein ausreicht, um den Energiebedarfswert EBW zu erfüllen, werden alle Photovoltaikanlagen (12) mit Volllast betrieben und alle Windenergieanlagen im Leerlauf betrieben oder abgeschaltet;ii. Wenn der erwartete Energieertragswert EEW(PV) der Photovolt

MEMBRANELEKTRODENANORDNUNG MIT ABGESTUFTER GASREKOMBINATIONSSCHICHT

Resumen de: DE102024109660A1

Eine Membranelektrodenanordnung umfasst einen Kathodenabschnitt, der an einem Ende angeordnet ist, und einen Anodenabschnitt, der an einem dem Kathodenabschnitt gegenüberliegenden Ende angeordnet ist. Die Membranelektrodenanordnung umfasst auch eine Kathoden-Ionomerschicht, die neben dem Kathodenabschnitt angeordnet ist, und eine Anoden-Ionomerschicht, die neben dem Anodenabschnitt angeordnet ist. Ferner kann die Membranelektrodenanordnung eine oder mehrere Trägerschichten enthalten, die zwischen der Kathoden-Ionomerschicht und der Anoden-Ionomerschicht angeordnet sind. Zudem enthält die Anoden-Ionomerschicht eine Vielzahl von Gasrekombinationskatalysatoren in einer abgestuften Dispersion, sodass ein Abschnitt der Anoden-Ionomerschicht, der näher am Anodenabschnitt angeordnet ist, eine höhere Konzentration an Gasrekombinationskatalysatoren enthält als ein Abschnitt der Anoden-Ionomerschicht, der näher am Kathodenabschnitt angeordnet ist.

HYDROGEN PRODUCTION FACILITY AND METHOD

Resumen de: WO2025163031A1

Aspects of the present disclosure relate to a hydrogen production facility. The hydrogen production facility includes one or more electrolyser stacks to electrolyze water using an electrolyte and generate a hydrogen-aqueous solution mixture and an oxygen-aqueous solution mixture, the one or more electrolyser stacks comprising a plurality of membranes. The facility also includes a hydrogen separator to produce a flow of hydrogen from the hydrogen-aqueous solution mixture and an oxygen separator to produce a flow of oxygen from the oxygen-aqueous solution mixture. The hydrogen separator comprises a hydrogen gas-liquid separation device and a hydrogen coalescing device. The oxygen separator comprises an oxygen gas-liquid separation device and an oxygen coalescing device.

HYDROGEN PRODUCTION FACILITY AND METHOD

Resumen de: WO2025163034A1

A hydrogen production facility is disclosed, comprising a plurality of electrolyser stacks arranged for electrolyzing water using an electrolyte and for generating at least a hydrogen-aqueous solution mixture; and a hydrogen separator arrangement for producing a flow of hydrogen from the hydrogen-aqueous solution mixture; wherein the hydrogen separator arrangement comprises a plurality of first stage hydrogen collector separators, the first stage hydrogen collector separators being fluidly coupled to a respective sub-set of the plurality of electrolyser stacks; and wherein the plurality of first stage hydrogen collector separators are fluidly coupled to a downstream hydrogen buffer vessel. A related method is further disclosed.

A METHOD FOR HEATING UP ELECTROLYTIC UNITS OF AN ELECTROLYSIS PLANT AND A SYSTEM ASSOCIATED THEREWITH

Resumen de: WO2025162959A1

The disclosure refers to a computer-implemented method for heating up electrolytic units. The method comprises determining whether some electrolytic units of an electrolysis plant require heating up to have them at a temperature within a predetermined range in a future time span; controlling the electrolytic units to power them up based on first electric power available in a current time span; heating up the electrolytic units to have them at the temperature within the predetermined range in the at least one future time span; and repeating the steps such that the heating up is determined for one or more time spans that occur at the same time and/or later than the future time span, thereby repeatedly controlling the temperature of the electrolytic units to be at a temperature within the predetermined range in the future time spans.

METHOD FOR PRODUCING AN ELECTRODE HAVING A NOBLE METAL CATALYST FOR ALKALINE WATER ELECTROLYSIS

Resumen de: WO2025162752A1

A method is disclosed for producing an electrode (4) having a noble metal catalyst for alkaline water electrolysis. The method comprises: (S1) providing the electrode substrate (1); (S2) providing a matrix material (2) and a catalyst material (3) as starting materials for the coating; (S3) mixing the matrix material (2) and the catalyst material (3); and, (S4) coating the substrate (1) with the mixture of matrix material (2) and catalyst material (3) by means of high-velocity oxygen fuel spraying (HVOF). A correspondingly produced electrode (4), an electrochemical cell (10) comprising said electrode, and an electrolyser (20) are also specified.

HYDROGEN PRODUCTION SYSTEM, AND CONTROL SYSTEM AND METHOD THEREOF

Resumen de: WO2025162564A1

A control system for a hydrogen production system is proposed. The hydrogen production system includes a plurality of electrolyzers and a plurality of converter modules each of which is coupled to one or more of the plurality of electrolyzers. The control system includes: a plurality of local controllers each of which is coupled with one or more of the plurality of converter modules and one more of the plurality of the electrolyzers; and a system controller in communication with the plurality of local controllers. The system controller is configured to receive an external dispatch value and electrolyzer state information regarding states of the plurality of electrolyzers, and to determine internal dispatch values for one or more electrolyzer from the plurality of electrolyzers based on the external dispatch value and the electrolyzer state information. A least one local controller from the plurality of local controllers associated with the one or more electrolyzers is configured to receive the internal dispatch values from the system controller, and to control operations of the one or more electrolyzers according to the internal dispatch values.

INTEGRATION OF SOLID OXIDE ELECTROLYSIS CELLS (SOEC) AND OXYGEN PURIFICATOR TO ENHANCE HIGH TEMPERATURE PROCESSES

Resumen de: WO2025162555A1

The present disclosure relates to a method for producing a purified oxygen-containing stream, the method comprising: heating a Solid Oxide Electrolyzer Cells (SOEC) unit to a SOEC operating temperature; providing a water source or a steam source at a water source or steam source temperature; heating the water source or the steam source to produce a steam stream at a steam stream temperature; providing a sweep gas at a sweep gas temperature; feeding the steam stream and the sweep gas to the SOEC unit to produce an oxygen-containing stream and a hydrogen-containing stream; cooling the oxygen-containing stream to a temperature in the range of about 20°C to about 100°C, preferably about 40°C to about 60°C, more preferably about 44°C to about 55°C, and even more preferably about 50°C; and, after the cooling step, purifying the oxygen-containing stream to produce the purified oxygen-containing stream The present disclosure also relates a system for producing a purified oxygen-containing stream.

CO2 MITIGATION SYSTEM AND METHOD OF USE

Resumen de: WO2025165427A1

Herein discussed is a method of carbon capture comprising providing a reactor having an anode, a cathode, and an electrolyte between and in contact with the anode and the cathode, wherein the electrolyte conducts oxide ions and electrons; introducing a carbonaceous gas to the anode; introducing steam and hydrogen (H2) or carbon dioxide (CO2) and carbon monoxide (CO) to the cathode, wherein steam or CO2 is the dominant component; producing carbon dioxide (CO2) at the anode, wherein the CO2 partial pressure is greater than 18 kPa in the anode exhaust; and producing H2 or CO or both at the cathode. In an embodiment, the anode exhaust has a pressure of from 1 atm to 5 atm. In an embodiment, the CO2 content in the anode exhaust is from 20vol% to 100vol%.

HIGH-EFFICIENCY HYDROGEN PRODUCTION SYSTEM BY DIRECT AIR CAPTURE METHOD USING RENEWABLE ENERGY

Nº publicación: WO2025165039A1 07/08/2025

Solicitante:

LOWCARBON CO LTD [KR]
(\uC8FC)\uB85C\uC6B0\uCE74\uBCF8

Resumen de: WO2025165039A1

The present invention relates to a high-efficiency hydrogen production system by a direct air capture method using renewable energy. According to an embodiment of the present invention, the high-efficiency hydrogen production system comprises: a direct air capture device in which a chemical reaction occurs when an alkaline liquid mixture containing a specific component, such as potassium hydroxide or sodium hydroxide, is brought into contact with air, to capture carbon dioxide from the air; an electrolysis tank into which pure water and the sodium carbonate or potassium carbonate solution generated in the process of the chemical reaction for capturing carbon dioxide in the direct air capture device are introduced and then electrolyzed by using renewable energy including solar or wind power generation energy, to generate a gas containing hydrogen and a liquid containing potassium hydroxide or sodium hydroxide and separate and extract the generated gas and liquid; a gas storage tank in which the gas separated and extracted from the electrolysis tank is stored; and a liquid storage tank in which the remaining liquid after the gas is separated and extracted from the electrolysis tank is stored and potassium hydroxide or sodium hydroxide contained in the liquid is reintroduced into the direct air capture device.