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460
resultados
Última actualización
29/09/2025 [07:03:00]
Resultados 25 a 50 de 460
Resumen de: WO2025199193A1
Provided herein are catalysts for producing hydrogen via the hydrogen evolution reaction (HER) during water splitting, methods of producing hydrogen via photocatalytic water splitting using the catalysts, and compositions for use m photocatalytic water splitting that include the catalysts. In some embodiments, a catalyst hereof is a metal complex of Formula (I): M(L1)( L2)A, wherein M is a transition metal, L1 and L2 are both ligands independently forming one or more coordinate bonds with the metal M, and A is an anion, and wherein L1 is a tetrapyridyl-amine (Py4N) having four pyridyl groups and an amine group each forming a coordinate bond with the metal M.
Resumen de: WO2025194821A1
Disclosed in the present application are an alkali-containing wastewater zero discharge device and method for water electrolysis-based hydrogen production. The device comprises a hydrogen-side water seal device, a hydrogen-side degassing device, a waste alkali collecting tank, a waste alkali pump, an oxygen-side water seal device, and an oxygen-side degassing device. A hydrogen-side liquid phase outlet pipeline of the hydrogen-side degassing device goes downhill and extends inwards to the waste alkali collecting tank; an oxygen-side liquid phase outlet pipeline of the oxygen-side degassing device goes downhill and extends inwards to the waste alkali collecting tank; an exhausting pipeline of the waste alkali collecting tank is communicated with the atmosphere; by means of an inlet pipeline, the waste alkali pump goes downhill and extends inwards to the waste alkali collecting tank, and an outlet of the waste alkali pump is communicated with any one of a water supplementing tank, an alkali blending tank or an alkali transporting tank vehicle. In the present invention, on the premise of ensuring safety and saving investment and an occupied space, alkali-containing wastewater is recycled to serve as a raw material, thereby realizing zero discharge of alkali-containing wastewater; in addition, a centralized alkali-containing wastewater collecting system is designed, so that hydrogen-side and oxygen-side alkali-containing wastewater respectively pass through respective water seal
Resumen de: WO2025194940A1
A seawater treatment system and a seawater treatment method, which are used to solve the technical problem of a low degree of resource utilization of seawater in the prior art. The seawater treatment system comprises: a filtration device, which is used for removing solid particle impurities from seawater and outputting filtered water; a nanofiltration device, which is used for separating and filtering out monovalent ions and multivalent ions from the filtered water and outputting a nanofiltration permeate and a nanofiltration concentrate; a softening device, which is used for removing multivalent ions from the nanofiltration concentrate and outputting softened water; an electrolytic hydrogen production device, which is used for decomposing organic matter in the nanofiltration permeate, producing hydrogen and outputting electrolyzed water; and a desalting device, which is used for separating salt from fresh water in the electrolyzed water, wherein an anode (12) and a cathode (13) of the electrolytic hydrogen production device are staggered, the cathode (13) is of a hollow structure having a shell layer (131) and a hollow layer (132), the hollow structure has an opening (133), an exhaust structure is arranged on the shell of an electrolytic cell, and the opening (133) outputs hydrogen via the exhaust structure.
Resumen de: WO2025199135A1
Disclosed are electrodes comprising a conductive support substrate having an electrocatalyst coating containing crystalline molybdenum phosphides (MoxPy) in size ranging from micro- to nano-particles. The conductive supporting substrate is capable of incorporating a material to be reduced, such as CO2 or CO. Also disclosed are electrochemical methods for generating oxyhydrocarbons from CO2 or CO using water as a source of hydrogen.
Resumen de: US2025296047A1
A carbon dioxide process apparatus includes: a recovery device that includes a carbon dioxide absorption portion which dissolves carbon dioxide in an electrolytic solution of a strong alkali and absorbs the carbon dioxide; an electrochemical reaction device to which the electrolytic solution in which the carbon dioxide is dissolved by the carbon dioxide absorption portion is supplied and which electrochemically reduces the carbon dioxide; an anion exchange type fuel cell that supplies electric energy to the electrochemical reaction device; a carbon dioxide concentration gas supply passage that supplies a carbon dioxide concentration gas generated by the fuel cell to the electrolytic solution which is discharged from the recovery device and before being supplied to the electrochemical reaction device; and a hydrogen supply passage that supplies hydrogen generated by the electrochemical reaction device to the fuel cell.
Resumen de: US2025297393A1
A CO2 conversion method includes: generating CO and H2O by a RWGS reaction from CO2 and H2; generating C2H4 and H2 by CO electrolysis from the CO and H2O; and using the H2 generated by the CO electrolysis as the H2 of the RWGS reaction.
Resumen de: US2025297392A1
A water electrolysis stack includes: a membrane electrode assembly including an electrolyte membrane and a plate-shaped current collector provided on one of both sides of the electrolyte membrane in the thickness direction thereof; a water introduction unit for introducing water from the outside; a water flow path member disposed so as to face the current collector and provided with a water flow path for guiding, along the surface direction of the current collector, the water introduced into the water introduction unit; and a pumping unit for pumping the water to the water introduction unit. The pumping unit continuously changes the pumping amount of the water, thereby pulsating the water flowing through the water flow path along the surface direction of the current collector.
Resumen de: US2025297389A1
An electrolysis device includes: an electrolysis cell; a cathode supply flow path; an anode supply flow path; a cathode discharge flow path; an anode discharge flow path; a cathode flow rate regulator to adjust a flow rate A of a cathode supply fluid; an anode flow rate regulator to adjust a flow rate B of a anode supply fluid; a first flowmeter to measure a flow rate C of a cathode discharge fluid; a second flowmeter to measure a flow rate D of a anode discharge fluid; and a control device to estimate a Faraday efficiency according to a relational expression for approximating the Faraday efficiency to a function including the C and D, and control the cathode flow rate regulator according to the estimated Faraday efficiency to control the A.
Resumen de: US2025297377A1
The present invention relates to a Solid Oxide Electrolysis unit for industrial hydrogen. carbon monoxide or syngas production comprising at least two Solid Oxide Electrolysis cores that each comprise several Solid Oxide Electrolysis stacks of Solid Oxide Electrolysis cells. a power supply to manage electrical power to the Solid Oxide Electrolysis cores and piping connected to the Solid Oxide Electrolysis cores. According to the invention. the Solid Oxide Electrolysis unit comprises a power supply module. which comprises a transformer and at least one power supply unit. and a piping module. which comprises piping headers and fluidic connections going to and from the Solid Oxide Electrolysis cores. wherein the power supply module and the piping module are arranged adjacent to each other and the Solid Oxide Electrolysis cores are arranged above the power supply module and/or the piping module.
Resumen de: WO2025196220A1
The disclosure notably relates to a computer-implemented method for predictive maintenance of a system. The system comprises a hydrogen energy component, a cooling circuit, at least one actuator of the cooling circuit and at least one sensor collecting operating data during an operating of the system. The method comprises, during the operating of the system, the following three steps. The method comprises a first step of obtaining the operating data collected by to the at least one sensor. The method comprises a second step of estimating that a current state of the system is the fault state. The method comprises a third step of predicting a future state of the system. Such a method forms an improved solution for predicting maintenance of the system comprising the hydrogen energy component.
Resumen de: EP4621106A1
An electrolysis system (1) includes: an electrolysis cell (2); and a mediator reduction tank (4). The electrolysis cell (2) has: an anode electrode (10) that electrochemically oxidizes a reduced form (MRed) of a mediator; and a cathode electrode (8) that performs at least one of generation of hydrogen by electrochemical reduction of protons or water and generation of an organic hydride by electrochemical reduction of a hydrogenation target substance. The mediator reduction tank (4) non-photochemically reduces an oxidized form (MOx) of the mediator generated in the electrolysis cell (2).
Resumen de: EP4621107A1
A water electrolyzer includes a water electrolysis cell, a voltage applicator, a pressure regulating valve, and a controller. The water electrolysis cell includes a diaphragm or an electrolyte membrane, an anode, and a cathode. The anode is provided in one of two spaces separated by the diaphragm, or on one of two main surfaces of the electrolyte membrane. The cathode is provided in the other space separated by the diaphragm, or on the other main surface of the electrolyte membrane. The voltage applicator applies voltage between the anode and the cathode. In start-up of the water electrolyzer, the controller controls the voltage applicator to increase current flowing through the water electrolysis cell, and then controls the pressure regulating valve to increase set pressure of the pressure regulating valve.
Resumen de: EP4620907A1
In a process in which ammonia is cracked to form a hydrogen gas product and an offgas comprising nitrogen gas, residual hydrogen gas and residual ammonia gas, residual ammonia is recovered from the offgas from the hydrogen recovery process by partial condensation and phase separation, and hydrogen is recovered from the resultant ammonia-lean offgas by partial condensation and phase separation. The recovered ammonia may be recycled the cracking process and the recovered hydrogen may be recycled to the hydrogen recovery process to improve hydrogen recovery from the cracked gas. Overall hydrogen recovery from the ammonia may thereby be increased to over 99%.
Resumen de: EP4621082A1
Apparatus (1) for metal smelting, wherein the metals processed in the smelting furnace are recycled metals, preferably recycled aluminium, comprising:- a smelting furnace comprising one or more burners (5) fed with methane from the network and air supplied by an atmospheric air blower (6) for intended for combustion;- a water electrolyser (4) capable of producing a mixture of gaseous hydrogen and oxygen; such gases being immediately conveyed to the burner (5) without interposition of storage tanks;characterised in thatsaid water electrolyser (4) is powered by a solar panel (2),further comprising batteries for storing the electric energy generated by said solar panel (2).Such apparatus further comprises a system adjusting the supply of gaseous hydrogen and oxygen using sensor measuring the quantity of carbon dioxide, carbon monoxide, nitrogen oxides, particulate matter generated during furnace operation.
Resumen de: CN120226171A
The present disclosure relates to an electrochemical cell stack comprising solid state electrochemical cells (20), an electrically conductive separator (30); and a sealing element (40). The separator comprises: a central portion (31) having an oppositely recessed support surface (32) supporting the solid oxide cell, and a contact surface (34) opposite the recessed support surface contacting an adjacent solid state electrochemical cell; and a boundary portion (36) providing a relatively elevated top (37) and upstanding side walls (38). A sealing element (40) extends between an elevated top surface of the boundary portion and an opposing support surface (39) of an adjacent bulkhead. The spacing distance between the concave support surface and the contact surface of the adjacent separator, defined by the combined height of the sealing element and the upstanding side wall, is matched to the thickness of the solid state electrochemical cell.
Resumen de: EP4621098A1
The present invention is related to an electrolyzer for producing hydrogen and to a method for the production of hydrogen.The electrolyzer for producing hydrogen (210) comprises a plurality of electrolysis cells (1) arranged in a plurality of planes (2), each having at least one anode (10) and one cathode (11) and a proton exchange membrane (3) between the anode (10) and the cathode (11), the proton exchange membranes (3) forming respective active area regions (30), wherein at least one electrolysis cell (1) has a plurality of active area regions (30) arranged substantially in a plane (2), wherein the electrolyzer comprises at least one tie rod (130) provided between active area regions (30) and extending perpendicular with regard to the planes (2).
Resumen de: EP4620937A1
A process for preparing acetylene and/or synthesis gas by partial oxidation of hydrocarbons with an oxidizing agent, wherein the oxidizing agent comprises O2 and H2, wherein the oxidizing agent is obtained at least in part by water splitting, preferably by electrolysis, the water splitting, preferably the electrolysis, preferably using energy generated at least in part from non-fossil resources, a cracking gas stream obtainable by the process according to the present invention, acetylene obtainable by the process according to the present invention, acetylene having a low total cradle to gate product carbon footprint, synthesis gas obtainable by the process according to the present invention, synthesis gas comprising hydrogen, CO, CO2 and CH4, wherein the separated synthesis gas stream has a δ<18>O value of < 22 %o, referred to the international standard VSMOW ((Vienna- Standard- Mean-Ocean- Water)), the use of an oxidizing agent comprising O2 and H2 for the preparation of acetylene and synthesis gas, the use of the inventive acetylene or the acetylene obtained by the inventive process for the preparation of butynediol, butanediol, butenediol, polybutylene terephthalate (PBT), polybutylene adipate terephthalate (PBAT), tetrahydrofurane (THF), polytetrahydrofurane (polyTHF), polyester-based thermoplastic polyurethanes (TPUs), polyether-based TPUs, gamma-butyrolactone, pyrrolidine, vinylpyrrolidone, polyvinylpyrrolidone, N-methylpyrrolidone, vinyl ether, polyvinyl ether, terpen
Resumen de: AU2023381476A1
A cell frame adapted for use in a pressurised electrolyser cell stack is provided. From an inner circumferential rim of the cell frame, a circumferential radial shelf with inwardly tapering thickness is provided, such that an annular space between a circumferential radial shelf and a neighbouring circumferential radial shelf is provided when cell frames are stacked in alignment with each other, and that outwardly of the circumferential radial shelf, a mobility link is provided which connects the radial shelf to the remaining cell frame.
Resumen de: EP4621890A1
The disclosure notably relates to a computer-implemented method for predictive maintenance of a system. The system comprises a hydrogen energy component, a cooling circuit, at least one actuator of the cooling circuit and at least one sensor collecting operating data during an operating of the system. The method comprises, during the operating of the system, the following three steps. The method comprises a first step of obtaining the operating data collected by to the at least one sensor. The method comprises a second step of estimating that a current state of the system is the fault state. The method comprises a third step of predicting a future state of the system. Such a method forms an improved solution for predicting maintenance of the system comprising the hydrogen energy component.
Resumen de: US2025296836A1
In a process in which ammonia is cracked to form a hydrogen gas product and an offgas comprising nitrogen gas, residual hydrogen gas and residual ammonia gas, residual ammonia is recovered from the offgas from the hydrogen recovery process by partial condensation and phase separation, and hydrogen is recovered from the resultant ammonia-lean offgas by partial condensation and phase separation. The recovered ammonia may be recycled the cracking process and the recovered hydrogen may be recycled to the hydrogen recovery process to improve hydrogen recovery from the cracked gas. Overall hydrogen recovery from the ammonia may thereby be increased to over 99%.
Resumen de: AU2024301470A1
The present invention relates to an electrolysis system (100) comprising a renewable power generation plant (1), an electrolysis plant (3), a transformer station (27) and an AC bus bar (5), wherein the renewable power generation plant (1) is connected to the public electricity grid at a point of connection (POC) via the AC bus bar (5) and comprises a power plant controller (7) and a self-controlled converter (9) that is connected to the AC bus bar (5). The electrolysis plant (3) comprises an electrolysis active power controller (11) and a converter arrangement (13) that is connected to the AC bus bar (5), and wherein the electrolysis active power controller (11) is configured for controlling active power (P) of the electrolysis plant (3) at the AC bus bar (5) and the power plant controller (7) is configured for controlling reactive power (Q) at the point of connection (POC).
Resumen de: US2025297392A1
A water electrolysis stack includes: a membrane electrode assembly including an electrolyte membrane and a plate-shaped current collector provided on one of both sides of the electrolyte membrane in the thickness direction thereof; a water introduction unit for introducing water from the outside; a water flow path member disposed so as to face the current collector and provided with a water flow path for guiding, along the surface direction of the current collector, the water introduced into the water introduction unit; and a pumping unit for pumping the water to the water introduction unit. The pumping unit continuously changes the pumping amount of the water, thereby pulsating the water flowing through the water flow path along the surface direction of the current collector.
Resumen de: US2025297389A1
An electrolysis device includes: an electrolysis cell; a cathode supply flow path; an anode supply flow path; a cathode discharge flow path; an anode discharge flow path; a cathode flow rate regulator to adjust a flow rate A of a cathode supply fluid; an anode flow rate regulator to adjust a flow rate B of a anode supply fluid; a first flowmeter to measure a flow rate C of a cathode discharge fluid; a second flowmeter to measure a flow rate D of a anode discharge fluid; and a control device to estimate a Faraday efficiency according to a relational expression for approximating the Faraday efficiency to a function including the C and D, and control the cathode flow rate regulator according to the estimated Faraday efficiency to control the A.
Resumen de: CN119907715A
Disclosed are a catalyst for ammonia dehydrogenation, a method for preparing the same, and a method for preparing hydrogen using the same. The disclosed catalyst for dehydrogenation of ammonia comprises a zeolite containing an intragranular cation, and an alkali metal and ruthenium which are immersed in the zeolite.
Nº publicación: WO2025190462A1 18/09/2025
Solicitante:
NORDIC HYDROGEN APS [DK]
NORDIC HYDROGEN APS
Resumen de: WO2025190462A1
The present invention relates to an alkaline electrolysis unit for splitting water into hydrogen and oxygen, comprising a housing with at least one vertically arranged anode, at least one vertically arranged cathode and at least one vertically arranged membrane between the anode and the cathode, separating the anode and the cathode horizontally, allowing passage of OH- from the cathode to the anode and separating cavities with water around the anode and the cathode, where the membrane is allowing passage of water between the cavities below the lower edge of the membrane, while oxygen and hydrogen gasses can escape the upwards in the cavities and out of the electrolysis unit, where the housing comprises a side wall and a top part, where the lower part of the housing forms a water reservoir and where, at the bottom part of the side wall, a water inlet is provided and where the top part has outlets for hydrogen and oxygen.
BOPI
Sede Electrónica
