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752
resultados
Última actualización
16/09/2025 [06:58:00]
Resumen de: US2025283230A1
A method for producing an electrolysis cell includes a joining step of joining a frame portion of a protective sheet member provided between a membrane electrode assembly and a fluid-supply-side current collector to a portion of the membrane electrode assembly on the outer side of the covered portion where an electrolyte membrane is covered with an electrode catalyst layer to form a joint, and a joined body stacking step of stacking the membrane electrode assembly and the protective sheet member joined together on the fluid-supply-side current collector with the protective sheet member facing the fluid-supply-side current collector.
Resumen de: WO2025186621A1
An apparatus, a system and a method for generating and storing hydrogen gas are disclosed. In one arrangement, an apparatus comprises a wind turbine, a solar array comprising at least one solar panel, an electrolyser unit having an electrolyser peak capacity and powered by the wind turbine and/or the solar array, and a pipeline configured to receive and store hydrogen from the electrolyser unit and having a length at least equal to 500 meters per 10MW of the electrolyser peak capacity. In another arrangement a method comprises generating energy at the wind turbine and the solar array comprising at least one solar panel, receiving the generated energy at the electrolyser unit, generating hydrogen gas with the generated energy by the electrolyser unit, and receiving and storing the generated hydrogen gas in a pipeline.
Resumen de: WO2025185857A2
Disclosed is a process for producing hydrogen and a reactor used for this process. The reactor contains a first reaction space for oxidizing metal fuel selected from silicon, magnesium, iron, titanium, zinc, aluminum or alloy containing two or more of these metals with an oxidant and a second reaction space separated from the first reaction space for dehydrogenating hydrogen-containing chemicals into hydrogen and dehydrogenated products. The reactor contains a plurality of feed lines axially and/or radially and/or tangentially passing through the reactor jacket for feeding the inlet zone of the first reaction space with inert gas and/or metal fuel and/or oxidant as a result of which a vortex is formed at the interior of the reactor jacket, which vortex moves towards the direction of the outlet zone of the first reaction space or the reactor contains at least one electrolysis cell that is placed partially or in total within the first reaction space or is placed downstream a tube located within the first reaction space for performing electrolysis of the hot hydrogen-containing chemical within said electrolysis cell. With the reactor and the process of this invention hydrogen is generated from hydrogen-containing chemicals, such as water and metal fuel is used to generate thermal energy to promote the dehydrogenation reaction.
Resumen de: WO2025186606A1
An integrated system for power generation and method thereof is disclosed, for generating and utilizing hydrogen gas or oxyhydrogen gas for enhancing fuel efficiency, thereby providing energy efficient power generation. An electricity generation system (402) generates and store an electric current in a battery for processing a gas generator (100) i.e., hydrogen (H2) or oxyhydrogen (HHO) gas generator. In the gas generator (100) an Automatic Transmit Power Control power supply (102) stabilizes power transmission, providing constant current by a current source (104) to an electrolysis setup (106) for generating hydrogen (H2) gas or oxyhydrogen (HHO) gas. A thermostat regulates temperature, and a demister separates steam from the generated gas. A burner (200) combusts the generated gas. A steam boiler (302) converts water into high pressure steam using the generated gas. A steam turbine (304) converts the high-pressure steam into mechanical energy. An electricity generator (306) converts mechanical energy into electrical energy.
Resumen de: WO2025186440A1
The present invention relates to electrical energy storage apparatus, such as rechargeable electrical energy storage devices such as batteries. We describe an electrochemical cell comprising: a chamber containing an electrolyte and a porous membrane dividing the chamber into a first compartment and a second compartment. The cell includes a first electrode, associated with the first compartment; and a second electrode, associated with the second compartment. The first compartment contains a first triphasic gas storage material in contact with the first electrode; and the second compartment contains a second triphasic gas storage material in contact with the second electrode. The first compartment further contains hydrogen gas, and the second compartment contains oxygen gas. In preferred examples, the first and/or the second triphasic gas storage material is a material selected from a polymer of intrinsic microporosity, a metal-organic framework, a zeolite or a porous silicate.
Resumen de: US2025283595A1
A circular economy polygeneration system includes an electrolyzer operable to provide hydrogen and oxygen based on water. The system includes a hydrogen firing furnace operable to burn hydrogen and produce a first flue gas including water and nitrogen. The system also includes an oxy-firing furnace operable to burn hydrocarbon fuel with oxygen provided by the electrolyzer to produce a second flue gas comprising water and carbon dioxide. Moreover, the system includes a first condenser configured to produce nitrogen and a first stream of water based on the first flue gas. The system further includes a second condenser configured to produce carbon dioxide and a second stream of water based on the second flue gas. The first and second stream of water are used by the electrolyzer to provide the hydrogen and oxygen. Additionally, the system includes a carbon capture system operable to capture carbon dioxide produced by the second condenser.
Resumen de: US2025286385A1
A sea-land collaboration-based multi-energy coupling low-carbon new energy system includes a low-carbon power generation unit, a green fuel synthesis unit and an energy storage device which are arranged on a sea and an island, a green fuel comprehensive utilization unit and a carbon capture device which are arranged on the island and/or on land, and a multi-energy flow coupling-based sea-land collaborative low-carbon intelligent control center. The system generates power using abundant and stable solar energy and wind energy on the sea and the island, prepares hydrogen and ammonia using seawater, and the green fuel synthesis unit prepares green fuels using the prepared hydrogen and carbon dioxide produced by the system, such that the use of coal and natural gas in the green fuel comprehensive utilization unit is reduced; meanwhile, produced carbon dioxide is used as raw materials to prepare green fuels again.
Resumen de: AU2025201306A1
A water processing system includes an ultrafiltration membrane device (UF membrane device), a reverse osmosis membrane device (RO membrane device), an electric deionization device (EDI device), and an information processing device (edge computer). The information processing device controls operations of the ultrafiltration membrane device, the reverse osmosis membrane device, and the electric deionization device based on information on a water electrolysis device that obtains hydrogen by subjecting water to electrolysis. Water that is processed by the electric deionization device is supplied to the water electrolysis device. The water electrolysis device is able to obtain hydrogen by subjecting supplied water to electrolysis. A water processing system includes an ultrafiltration membrane device (UF membrane device) , a reverse osmosis membrane device (RO membrane device) , an electric deionization device (EDI device , and an information processing device (edge computer) . The information processing device controls operations of the ultrafiltration membrane device, the reverse osmosis membrane device, and the electric deionization device based on information on a water electrolysis device that obtains hydrogen by subjecting water to electrolysis. Water that is processed by the electric deionization device is supplied to the water electrolysis device. The water electrolysis device is able to obtain hydrogen by subjecting supplied water to electrolysis. eb w a t e r p r o c e s
Resumen de: US2025282614A1
A process for cracking ammonia to form hydrogen is described comprising the steps of (i) passing ammonia through one or more catalyst-containing tubes in a furnace to crack the ammonia and form hydrogen, wherein the one or more tubes are heated by combustion of a fuel gas mixture to form a flue gas containing nitrogen oxides capable of reacting with ammonia in the flue gas to form ammonium nitrate, and (ii) cooling the flue gas to below 170° C., characterised by maintaining an amount of steam in the flue gas according to the following equation to prevent solid ammonium nitrate formation: (I) where, yH2O is the mol % of steam in the flue gas, P*H2O is the equilibrium vapor pressure of water in an aqueous solution of ammonium nitrate, and p is the minimum operating pressure of the flue gas.
Resumen de: US2025283226A1
An electrochemical reactor for capturing carbon dioxide and producing bicarbonate and hydrogen is described herein. The electrochemical reactor is useful for, among other things, converting biogas to a bicarbonate and hydrogen feedstock for biomethanation. The reactor comprises at least one reactor unit comprising an electrolyzer cell and at least one alkaline water electrolysis (AWE) cell adjacent to the electrolyzer cell. The electrolyzer cell comprises an anode spaced from a cathode by an ion exchange membrane between the anode and the cathode; and the electrolyzer cell is adapted and arranged to allow a flow of a neutral liquid electrolyte to contact the anode and the cathode. The ion exchange membrane can be a cation exchange membrane (CEM), or an anion exchange membrane (AEM). The AWE cell comprises a second anode spaced from a second cathode by a porous diaphragm.
Resumen de: MX2025002826A
The problem addressed by the present invention is that of specifying a process for electrochemical production of LiOH from Li<sup>+</sup>-containing water using an electrochemical cell having a LiSICon membrane which is operable economically even on an industrial scale. The process shall especially have a high energy efficiency and achieve a long service life of the membrane even when the employed feed contains impurities damaging to LiSICon materials. The problem is solved by adjusting the flow conditions in the anodic compartment of the electrochemical cell such that the anolyte flows along the membrane at a certain minimum flow rate.
Resumen de: MX2025002871A
The present invention relates to the electrochemical production of hydrogen and lithium hydroxide from Li+-containing water using a LiSICon membrane. The problem addressed by the present invention is that of specifying a process which is operable economically even on an industrial scale. The process shall especially exhibit a high energy efficiency and achieve a long service life of the membrane even when the employed feed contains impurities harmful to LiSICon materials. A particular aspect of the process is that the cell simultaneously separates off the lithium via the membrane and effects electrolysis of water. An essential aspect of the process is that the electrochemical process is performed in a basic environment, more precisely at pH 9 to 13. The pH is adjusted by addition of a basic compound to the feed.
Resumen de: MX2025002822A
The problem addressed by the present invention is that of specifying a process for producing lithium hydroxide which is very energy efficient. The process shall especially operate without consumption of thermal energy. The process shall be able to handle, as raw material, Li-containing waters generated during digestion of spent lithium-ion batteries. The LiOH produced by the process shall have a high purity sufficient for direct manufacture of new LIB. The process shall achieve a high throughput and have small footprint in order that it can be combined with existing processes for workup of used LIB/for production of new LIB to form a closed, continuous production loop. The process according to the invention is an electrolytic membrane process operating with a LiSICon membrane. It is a special aspect of the process that the electrolysis is operated up to the precipitation limit of the lithium hydroxide.
Resumen de: US2025283231A1
Methods and apparatuses for converting carbon dioxide to useful compounds are disclosed. The method involves reducing bicarbonate solution in an electrolyzer. Bicarbonate solution is supplied to the cathode. The direct reduction of bicarbonate at the cathode may be coupled with an oxidation reaction at the anode. The oxidation reaction may provide a source of protons (H+) to cathode for the reduction of bicarbonate. The oxidation reaction may be a hydrogen oxidation reaction (HOR). Hydrogen gas (H2) may be supplied to the anode. In some embodiments, a source of gas may be supplied to the bicarbonate solution to form a pressurized solution before supplying the solution to the cathode.
Resumen de: US2025214034A1
Hydrogen gas purifier electrochemical cells, systems for purifying hydrogen gas, and methods for purifying hydrogen gas are provided. The cells, systems, and methods employ double membrane electrode (DMEA) electrochemical cells that enhance purification while avoiding the complexity and cost of conventional cells. The purity of the hydrogen gas produced by the cells, systems, and methods can be enhanced by removing at least some intermediate gas impurities from the cells. The purity of the hydrogen gas produced by the cells, systems, and methods can also be enhanced be introducing hydrogen gas to the cells to replenish any lost hydrogen. Water electrolyzing electrochemical cells and methods of electrolyzing water to produce hydrogen gas are also disclosed.
Resumen de: US2025281781A1
A gist of the present invention provides a flame extinction device which is excellent in flame propagation suppressive effect and in shock wave propagation suppressive effect, and a hydrogen production device including the flame extinction device. A flame extinction device (1) includes: a flame propagation suppression section (3) having a porous portion on the first pipe (10) side and/or the second pipe (22) side when seen from a connective piping section (20); and a pressure reduction section (2) that reduces a risen internal pressure at an end part of a third pipe (23) which is not orthogonal to any of the first pipe (10) and the second pipe (22).
Resumen de: US2025283392A1
The present application is related to a geological carbon sequestration and hydrogen production structure and method based on the spontaneous reaction of water, CO2, and active minerals, belonging to the field of carbon sequestration and hydrogen production technology. The method comprises the following steps: (1) CO2 collection; (2) selecting a site for carbon sequestration and hydrogen production; (3) constructing a space for carbon sequestration and hydrogen production; (4) CO2 mineralization sequestration and simultaneous hydrogen production; (5) hydrogen collection. The method permanently mineralizes and sequesters CO2 while using the water-CO2-active minerals reaction for simultaneous geological hydrogen production. It not 10 only reduces the economic cost of CO2 geological sequestration but also opens a new pathway for in-situ geological hydrogen production, achieving green and low-carbon hydrogen energy production. The geological carbon sequestration and hydrogen production structure is designed to have low sequestration costs and enable large-scale simultaneous geological hydrogen production.
Resumen de: US2025282613A1
Contemplated systems and methods for hydrogen production use a solar heliostat system as an energy source to produce hydrogen during daytime, and employ molten salt as an energy source to produce hydrogen during nighttime.
Resumen de: US2025283232A1
An electrolysis cell of an electrolysis device includes a membrane electrode assembly in which an electrolyte membrane is interposed between a first electrode and a second electrode. The membrane electrode assembly is positioned between a first separator and a second separator. The electrolysis device further includes a seal member and a protection member. The protection member surrounds the outer periphery of the second electrode. The protection member includes a first portion and a second portion. The first portion is interposed between the electrolyte membrane and the seal member. The second portion is interposed between the electrolyte membrane and the second separator.
Resumen de: US2025283237A1
A method can include: processing precursors, electrochemically oxidizing an anolyte and reducing a catholyte in an electrolyzer, and cooperatively using the oxidized anolyte and reduced catholyte in a downstream process. The electrolyzer can include an anode, a cathode, and a separator. The anode can include an anolyte, an electrode, an anolyte reaction region. The cathode can include a catholyte, an electrode, a catholyte reaction region.
Resumen de: US2025283230A1
A method for producing an electrolysis cell includes a joining step of joining a frame portion of a protective sheet member provided between a membrane electrode assembly and a fluid-supply-side current collector to a portion of the membrane electrode assembly on the outer side of the covered portion where an electrolyte membrane is covered with an electrode catalyst layer to form a joint, and a joined body stacking step of stacking the membrane electrode assembly and the protective sheet member joined together on the fluid-supply-side current collector with the protective sheet member facing the fluid-supply-side current collector.
Resumen de: US2025283236A1
A method for sealing an electrolyzer cell may include applying a sealant between two layers of an electrolyzer cell and compressing the two layers towards each other. The method may further include flowing fluid through a flow field in the electrolyzer cell. The method may further include controlling a temperature of the fluid flowing through the flow field and controlling a pressure applied to the sealant by the compressing the two layers towards each other. The method may further include conforming the sealant to the two layers.
Resumen de: US2025276895A1
The gas generation system decomposes water in contact with the photocatalyst by sunlight to generate a mixed gas composed of oxygen gas and hydrogen gas. The gas generation system includes a housing having a light-transmission wall in which an accommodation space for accommodating water and a photocatalyst is formed. The light-transmission wall transmits the sunlight S that has directly or indirectly reached at least a part of the wall portion forming the accommodation space. The gas generation system includes an irradiation device that causes an artificial light L having a peak wavelength that is absorbed by the photocatalyst to emit light by supply of electric power, and irradiates the light-transmission wall with the emitted artificial light L, and a switch that selectively switches supply or stop of supply of electric power to the irradiation device.
Resumen de: WO2025182228A1
The present invention provides: an operation method for an electrolysis device that is able to quickly reach a rated load; a control device for an electrolysis device; and an electrolysis system. Provided is an operation method for an electrolysis device (100) that is provided with a temperature adjuster (30), which adjusts the temperature of an electrolytic solution supplied to an electrolytic cell (40), the electrolytic cell (40), which electrolyzes the electrolytic solution supplied thereto via the temperature adjuster (30), and a gas-liquid separator (20), which separates a gas and a liquid produced by the electrolytic cell (40), wherein in a state in which the electrolysis device (100) is stopped, warm water is supplied to the temperature adjuster (30).
Nº publicación: JP2025132268A 10/09/2025
Solicitante:
三菱重工業株式会社
Resumen de: WO2025182682A1
A method for operating a water electrolysis apparatus that comprises an electrolytic bath for electrolyzing water, a hydrogen separator to which hydrogen generated in the electrolytic bath is guided, an oxygen separator to which oxygen generated in the electrolytic bath is guided, and a vent line for discharging gas from the hydrogen separator or the oxygen separator and a vent valve provided to the vent line, the method comprising: a step for halting electrolysis of water in the electrolytic bath; and a step for determining whether or not a first index indicating the amount of increase in the concentration of oxygen in gas in the hydrogen separator or the concentration of hydrogen in gas in the oxygen separator has exceeded a first threshold after the electrolysis has been halted. When the first index exceeds the first threshold, the pressure in the hydrogen separator or the oxygen separator is lowered to a first prescribed value by opening the vent valve.
BOPI
Sede Electrónica
