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928
resultados
Última actualización
18/05/2025 [07:03:00]
Resultados 725 a 750 de 928
Resumen de: WO2025059699A1
The invention relates to a device and a method for the continuous and/or semi-continuous, photocatalytic and/or photoelectrochemical production of hydrogen from waste water as reaction medium (1), with a flow element (2) forming the reaction space (2). In order to permit a better degree of effectiveness in both photocatalytic and photoelectrochemical hydrogen production from waste water despite simple design conditions, it is proposed that a multiport fitting (3) is provided upstream of the flow element (2) on the inlet side, via which multiport fitting both an oscillation pump (4) and a metering unit (5) for the reaction medium (1) are connected to the flow element (2), and that the oscillation pump (4) forms a conveying device for the reaction medium (1) by at least partially forming a plug flow in the flow element (2).
Resumen de: WO2025064007A1
A method for producing a hydrogen product having a carbon intensity less than about 0.45 kg C02e / kg H2 is provided. The method includes the steps of converting water to oxygen and the hydrogen product through an electrolysis process, providing at least some, and substantially all, of the required energy for the electrolysis process from a biomass power plant, and processing one or more flue gas streams from the biomass power plant in a carbon capture unit to reduce CO2emissions. The energy produced from the biomass power plant may comprise one or more of electricity, steam used as process steam in the electrolysis process, steam used as thermal energy in the electrolysis process, and steam used to power a mechanical drive for one or more compressors, pumps, or other motors generating shaft torque in the electrolysis process.
Resumen de: DE102023209364A1
Die Erfindung betrifft ein Offshore-Elektrolysesystem (100) umfassend eine Windkraftanlage (1) mit einer Plattform (3) und mit einer auf der Plattform (3) angeordneten Elektrolyseanlage (5), die zur Versorgung mit Elektrolysestrom an die Windkraftanlage (1) angeschlossen ist, und weiter umfassend eine an die Elektrolyseanlage (5) angekoppelte Wärmeversorgungseinrichtung (7), die derart ausgestaltet ist, dass in einem Stillstandsbetrieb mittels der Wärmeversorgungseinrichtung (7) auf die Elektrolyseanlage Wärme übertragbar ist, so dass eine Temperaturhaltung oberhalb einer Mindesttemperatur bewirkt ist.Die Erfindung betrifft weiterhin ein Verfahren zum Betrieb eines entsprechenden Offshore-Elektrolysesystems. Dabei wird in einem Stillstandsbetrieb mittels der Wärmeversorgungseinrichtung (7) auf die Elektrolyseanlage (5) Wärme übertragen, so dass eine Temperaturhaltung oberhalb einer Mindesttemperatur herbeigeführt und ein Einfrieren von wasserführenden Komponenten der Elektrolyseanlage (5) verhindert wird.
Resumen de: US2025101619A1
It is described a high-pressure alkaline electrolyzer for splitting water into hydrogen and oxygen, said electrolyzer comprising a stack of electrolysis cells (1), with channels supplying lye to the cathodes and anodes and channels conducting hydrogen from the cathodes and oxygen from the anodes. The electrolyzer includes first and second lye inlet channels (4a, 4b), a multitude of first intermediate lye channels (5a) conducting lye from the first lye inlet channel (4a) to each cathode (3a) in the stack, a multitude of second intermediate lye channels (5b) conducting lye from the second lye inlet channel (4b) to each anode (3b) in the stack, wherein the hydrogen conducting channels include a common hydrogen outlet channel (7a) and a multitude of intermediate hydrogen channels (8a) conducting hydrogen from each cathode (3a) to the common hydrogen outlet channel (7a), and the oxygen conducting channels include a common oxygen outlet channel (7b) and a multitude of intermediate oxygen channels (8b) conducting oxygen from each anode (3b) to the common oxygen outlet channel (7b).
Resumen de: US2025101601A1
Microorganisms and bioprocesses are provided that convert gaseous C1 containing substrates, such as syngas, producer gas, and renewable H2 combined with CO2, into nutritional and other useful bioproducts.
Resumen de: US2025101615A1
A ruthenium-based nano-catalyst for a hydrogen generation reaction having excellent catalytic activity and efficiency by the catalyst surface structure, a method for preparing the same, a hydrogen generation electrode and a water electrolysis system.
Resumen de: US2025104935A1
An electrode including a substrate, zinc (Zn) doped CrV spinel oxide (ZCVO) nanoparticles, a conductive carbon compound, and a binding compound. A mixture of the ZCVO nanoparticles, the conductive carbon compound, and the binding compound at least partially coats a surface of the substrate. A supercapacitor including the electrode. A method of generating hydrogen with the electrode.
Resumen de: US2025101613A1
An electrolyser system and method of electrode manufacture. The electrolyser system may comprise a first vessel in communication with an electrolyser stack, a power supply, an electrode, a separator, a membrane, and a second vessel in communication with the electrolyser stack. The electrode may comprise a catalytic material and a micro-porous and/or nano-porous structure. The method of electrode manufacture may comprise providing a substrate, contacting the substrate with an acidic solution, applying an electric current to the substrate, simultaneously depositing a main material and supporting material comprising a scarifying material onto the substrate, and leaching the scarifying material.
Resumen de: US2025105308A1
A sulfur-containing platinum-carbon catalyst, a preparation method thereof, and an application thereof are provided. The sulfur-containing platinum-carbon catalyst contains sulfur-containing conductive carbon black and a platinum metal loaded thereon. The total sulfur content in the sulfur-containing conductive carbon black is greater than or equal to the surface sulfur content, and the weight fraction of platinum is 20-70% by weight based on the total weight of the catalyst. The sulfur-containing platinum-carbon catalyst of the invention has a lower overpotential and a higher weight specific activity.
Resumen de: AU2023365839A1
The present disclosure relates to a hydrogen production control system and method, and a storage medium. The hydrogen production control system comprises: a safety controller; a first valve and a second valve, which are respectively connected to the safety controller; a hydrogen production controller; a third valve and a fourth valve, which are respectively connected to the hydrogen production controller; an oxygen-side gas-liquid separation apparatus, which is respectively connected to the first valve and the third valve; and a hydrogen-side gas-liquid separation apparatus, which is respectively connected to the second valve and the fourth valve, wherein the hydrogen production controller is used for controlling the pressure of the oxygen-side gas-liquid separation apparatus by means of the third valve and controlling the liquid level of the hydrogen-side gas-liquid separation apparatus by means of the fourth valve; and the safety controller is used for adjusting the pressure of the oxygen-side gas-liquid separation apparatus by means of the first valve and/or adjusting the liquid level of the hydrogen-side gas-liquid separation apparatus by means of the second valve when a hydrogen production parameter is greater than or equal to a preset parameter alarm threshold value. In this way, the system safety is effectively ensured, and the production efficiency is improved.
Resumen de: AU2023340993A1
The disclosure pertains to a plant for the production of ammonia. The ammonia is produced from hydrogen obtained by electrolysis of water. The electrolysis is powered by a renewable source of energy, complemented with power obtained from the plant during periods of low or no availability of the renewable energy. To this end, the plant is configured such that it can be operated in a charge configuration (obtaining and storing power) and a discharge configuration (employing said power).
Resumen de: WO2025061044A1
Method for preparing a doped metal phosphorus trichalcogenide (dMPT) comprising: (a) contacting a first metal salt, an optional base and a fluorine salt under hydrothermal conditions thereby growing a first metal precursor on a conductive substrate; (b) contacting the first metal precursor with an aqueous solution of a second metal salt thereby forming a doped metal precursor; and (c) contacting the doped metal precursor, phosphorus, and sulfur thereby forming a mixture; and heating the mixture;a dMPT, and a method for producing hydrogen gas using the same.
Resumen de: WO2025060428A1
The present application discloses a multi-opening unipolar plate and an electrolytic cell for electrolytic hydrogen production. The multi-opening unipolar plate comprises a plate body and cushion blocks. The plate body comprises a flow field area and opening areas. The opening areas are distributed on two sides of the flow field area in the length direction of the multi-opening unipolar plate. First through holes are formed in the cushion blocks. The cushion blocks are arranged on two sides of the opening areas in the thickness direction of the multi-opening unipolar plate; the cushion blocks cover the opening areas; and the first through holes correspond to openings of the opening areas. At least some of the cushion blocks are provided with flow channels enabling the openings and the flow field area to be communicated. The cushion blocks can cover the opening areas in the thickness direction of the multi-opening unipolar plate and surround the openings of the opening areas in the circumferential direction, thereby sealing the openings of the opening areas, reducing the risk of fluid leakage from the openings to the outside of the multi-opening unipolar plate and the risk of fluid leakage from one opening to other openings, improving the sealing performance of the opening areas, and thus improving the safety of the multi-opening unipolar plate in the working process.
Resumen de: WO2025062828A1
Problem To provide: a catalyst having excellent hydrogen generation efficiency and a method for producing the same; a hydrogen generator comprising the catalyst; and a fuel cell system comprising the hydrogen generator. Solution According to an aspect of the present invention, provided is a catalyst for use in generating hydrogen from a borohydride salt. The catalyst comprises: a core that has interlayer anions and interlayer water molecules and that includes, as the main component, a layered double hydroxide containing iron; and a tripod ligand that is coordinated on the surface of the core in a state of having three hydrophilic groups located on the core side.
Resumen de: WO2025063428A1
The present invention relates to a composite electrolysis device for producing hydrogen and hypochlorous acid water, having a novel configuration for generating hydrogen and hypochlorous acid water by electrolyzing dilute hydrochloric acid, the device comprising: an electrolytic cell (100) which has + and - electrodes (110, 120) disposed therein so as to electrolyze dilute hydrochloric acid inputted from the outside, and has formed in the upper end thereof a chlorine gas discharge hole (130) and a hydrogen discharge hole (140) for discharging chlorine gas and hydrogen generated from the electrolysis of the dilute hydrochloric acid; a dilution tank (200) which is provided on the upper side of the electrolytic cell (100) so as to communicate with the chlorine gas discharge hole (130), has dilution water flowing thereinto from the outside, and has hypochlorous acid water generated therein by means of the chlorine gas, entering through the chlorine gas discharge hole (130), being dissolved in the dilution water; an auxiliary electrolytic cell (300) which is provided on one side of the electrolytic cell (100) so that the end portions on one side of the + and - electrodes (110, 120) are inserted therein, has hydrochloric acid, contained in the hypochlorous acid water, electrolyzed therein by having a portion of the hypochlorous acid water generated in the dilution tank (200) flowing thereinto through a hypochlorous acid water inflow line (310) of which one end is connected to the d
Resumen de: US2025105323A1
An integrated hydrogen-electric engine includes a hydrogen fuel-cell; a hydrogen fuel source; an electric motor assembly disposed in electrical communication with the fuel-cell; an air compressor system configured to be driven by the motor assembly, and a cooling system having a heat exchanger radiator in a duct of the cooling system, and configured to direct an air stream including an air stream from the air compressor through the radiator, wherein an exhaust stream from a cathode side of the fuel-cell is fed via a flow control nozzle into the air stream in the cooling duct downstream of the radiator.
Resumen de: US2025100892A1
Ammonia synthesis process and plant comprising an ammonia synthesis converter and a downstream ammonia cooling system, wherein the ammonia synthesis converter is arranged to receive an ammonia synthesis gas comprising hydrogen and nitrogen and to produce an ammonia product gas stream and an off-gas ammonia stream; said ammonia cooling system comprising:—an ammonia evaporator for evaporating an ammonia liquid stream and generating an ammonia vapor stream;—an off-gas cleaning unit for cleaning said off-gas ammonia stream under the addition of water as a scrubbing agent, generating a water stream and an ammonia depleted off-gas stream;—an absorption cooling unit comprising water for cooling said ammonia vapor stream and collecting a condensed ammonia-water stream;—a regeneration unit for generating from said condensed ammonia-water stream: a purified water stream, said ammonia liquid stream, and an overhead ammonia gas stream.
Resumen de: US2025101365A1
Nitrogen in a form suitable for feeding a population of microbes in a bioreactor is produced by reacting nitrogen gas and hydrogen gas to form ammonia plus an unreacted gas stream under conditions favorable to having little unreacted nitrogen gas in the unreacted gas stream. The ammonia, or a compound derived from the ammonia is fed to the microbes and the unreacted gas stream is optionally fed back into the reaction, or fed into the bioreactor. Oxygen can be produced, such as by electrolysis, and also provided to the microbes. Hydrogen from the electrolysis can be added to the hydrogen being reacted with nitrogen gas, and/or can be added to the bioreactor. Where nitrogen gas is produced from air separation, the residual gases can be another source of oxygen.
Resumen de: US2025100877A1
A process and system for generating hydrogen gas are described, in which water is electrolyzed to generate hydrogen and oxygen, and a feedstock including oxygenate(s) and/or hydrocarbon(s), is non-autothermally catalytically oxidatively reformed with oxygen to generate hydrogen. The hydrogen generation system in a specific implementation includes an electrolyzer arranged to receive water and to generate hydrogen and oxygen therefrom, and a non-autothermal segmented adiabatic reactor containing non-autothermal oxidative reforming catalyst, arranged to receive the feedstock, water, and electrolyzer-generated oxygen, for non-autothermal catalytic oxidative reforming reaction to produce hydrogen. The hydrogen generation process and system are particularly advantageous for using bioethanol to produce green hydrogen.
Resumen de: US2025101940A1
A system in a water body uses buoyant force of gaseous Hydrogen and Oxygen to generate electrical power with one or more turbines that includes power resulting from the buoyant force while transporting the Hydrogen or Oxygen to a higher elevation, without loss of electrons, for conversion to electricity at the higher elevation. Conversion of Hydrogen and Oxygen to water through a Hydrogen Fuel Cell or by burning at the higher elevation may generate additional steam power, hydropower, or purified water. Portable submersible modules may transport the system below or above the water to and from the base of a plumbing portion of the system. The amount of gaseous fuel energy available at the higher elevation is not detrimentally impacted by the generation of electricity by the turbine.
Resumen de: US2025101947A1
A wind turbine is provided that se s a nacelle configured to be arranged on a wind turbine tower, a nacelle housing of the nacelle, wherein the nacelle housing is configured to house at least part of an electrical power generation system of the wind turbine, and a hydrogen production system. The hydrogen production system includes an electrolyzer configured to receive electrical power from the electrical power generation system, wherein the electrolyzer is arranged inside the nacelle housing of the nacelle in which at least the part of the electrical power generation system is arranged. One or more other components of the hydrogen production system are arranged at a base of the wind turbine tower and/or within the wind turbine tower.
Resumen de: US2025101614A1
The present disclosure provides approaches for increasing the adhesion of a catalyst ink on a substrate, use of binders within an electrode ink to enhance coating uniformity, incorporating pore-forming agents within an electrode ink, approaches for growing an electrode on a reinforcement layer, increasing the electrochemically active surface area, and incorporation of certain materials in an electrode ink. The present disclosure also relates to electrodes for electrochemical cells, including area-scalable electrodes designed for high-speed manufacturing. The materials, devices and methods described herein may apply to either one or both of an anode or a cathode electrode for an electrochemical cell.
Resumen de: US2025101609A1
The invention relates to a method, an electrolyte membrane, and a corresponding electrolysis cell or an electrolysis stack for producing hydrogen and oxygen from water vapor using electric energy and/or a corresponding fuel cell or a fuel cell stack in order to produce electric energy using hydrogen and oxygen by means of a redox reaction of lithiated iron oxide iron which is dissolved in a liquid alkali carbonate salt. The membrane for splitting water vapor into hydrogen and oxygen consists, in the embodiment according to the invention, of a novel lithiated iron oxide electrolyte which is dissolved in a liquid alkali carbonate salt mixture, generally also referred to as a carbonate melt, which includes lithium carbonate among others. The electrolyte and the liquid carbonate salt are bonded in a heat-resistant non-conductive matrix, for example consisting of lithium aluminate LiAlO2 and/or another heat-resistant material with a capillary effect.
Resumen de: US2025101608A1
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.
Nº publicación: US2025101620A1 27/03/2025
Solicitante:
KING FAHD UNIV OF PETROLEUM AND MINERALS [SA]
KING ABDULLAH CITY FOR ATOMIC & RENEWABLE ENERGY K A CARE [SA]
KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS,
King Abdullah City for Atomic & Renewable Energy (K.A.CARE)
Resumen de: US2025101620A1
A solar-powered ammonia and oxygen production system is disclosed. The system includes an electrolyzer, a PV cell unit, an absorption cooling unit (ACU), a solar parabolic trough collector (PTC), a cryogenic air separation unit (CSU), a cooler, an air compressor, a hydrogen compressor and a nitrogen compressor, an air turbine, and a catalytic converter. The system utilizes these components to co-produce ammonia and oxygen while generating surplus power. The PTC is thermally coupled with the ACU to cool the air coming from the air compressor. The cold air is supplied to the CSU. The nitrogen output from the CSU feeds into the nitrogen compressor, and from there, to the catalytic converter. The hydrogen from the electrolyzer is compressed by the hydrogen compressor, and supplied to the catalytic converter. The catalytic converter further produces ammonia based on the hydrogen and nitrogen received therein.
BOPI
Sede Electrónica
