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715
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Última actualización
18/09/2025 [07:00:00]
Resultados 25 a 50 de 715
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: 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: 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: 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: 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: WO2024097986A2
Disclosed herein are devices, systems, and methods of using aluminum, activated with a liquid metal catalyst stored inside of one or multiple shipping containers or shipping container-like boxes to produce hydrogen and direct heat on demand.
Resumen de: EP4613914A1
A water electrolysis system (100) includes a plurality of water electrolysis stacks (101) connected in series to a DC power supply, a plurality of gas storage tanks (e.g., a hydrogen gas tank (102), a low-pressure hydrogen gas tank (102a)) for storing a gas generated in the water electrolysis stacks, a first gas pressure adjustment mechanism (e.g., a hydrogen gas tank pressure adjustment valve (113)) for adjusting pressure of the gas generated in the entire plurality of water electrolysis stacks, a plurality of second gas pressure adjustment mechanisms (e.g., a water electrolysis stack hydrogen gas pressure adjustment valve (115), a water electrolysis stack low-pressure hydrogen gas pressure adjustment valve (115a)) for adjusting pressure of a gas generated in each of the water electrolysis stacks, and a control device (150) for controlling the first gas pressure adjustment mechanism and the second gas pressure adjustment mechanism.
Resumen de: EP4613912A1
The present invention relates to a cathode material for a solid oxide electrolytic cell and its preparation and use. The cathode material for the solid oxide electrolytic cell has a molecular formula of LaxSr1-xFe0.8CuyNi0.2-yO3-δ, wherein 0.1≤x≤0.9, 0.01≤y<0.2, and 0≤δ≤0.5. An electrolytic cell prepared by using the cathode material can efficiently convert CO2 and H2O into synthesis gas through electrochemical catalysis. Furthermore, the electrolytic cell can achieve continuous and stable operation of high-temperature electrolysis of water vapor and/or carbon dioxide at a temperature of 800°C and an electrolysis current density of 0.5 A/cm<2> or more, thereby having good prospects for industrial application.
Resumen de: EP4613700A1
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.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: EP4613913A1
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: WO2024094264A2
A hydrogen generation system comprising a hydrogen electrolyser, a power converter connected to the electrolyser, and a control system configured to control the power converter to supply power to the electrolyser The system further includes a monitoring system configured to monitor the operation of the generation system, wherein the monitoring system is configured to: determine a plurality of operational parameters of the electrolyser, and, generate one or more performance metrics based on the determined operational parameters, the one or more performance parameters including: the electrical capacitance of the electrolyser, and/or the equivalent series resistance of the electrolyser. Also disclosed is a method for determining operational performance of a hydrogen generation system including an electrolyser.
Resumen de: MX2025005140A
Cell for forming an electrolyser comprising at least one diaphragm or membrane having a first side and a second side opposite the first side, a first cell plate, arranged on the first side of the diaphragm, provided with a first electrode, provided with an inlet channel for supplying or draining electrolyte to or from the electrode, provided with a first discharge channel for discharging oxygen from the electrode, at least one second cell plate, arranged on the second side of the diaphragm, provided with a second electrode and provided with a second discharge channel for discharging hydrogen from the electrode wherein the at least one first and second cell plate are made of a polymer material.
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.
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).
Resumen de: US2024154496A1
A system includes a flow-through electric generator and an electrolytic cell. The flow-through electric generator includes a turbine wheel, a rotor, and a stator. The turbine wheel is configured to receive natural gas from a natural gas pipeline and rotate in response to expansion of the natural gas flowing into an inlet of the turbine wheel and out of an outlet of the turbine wheel. The rotor is coupled to the turbine wheel and configured to rotate with the turbine wheel. The flow-through electric generator is configured to generate electrical power upon rotation of the rotor within the stator. The electrolytic cell is configured to receive a water stream and the electrical power from the flow-through electric generator. The electrolytic cell is configured to perform electrolysis on the water stream using the received electrical power to produce a hydrogen stream and an oxygen stream.
Resumen de: JP2025130751A
【課題】 アンモニアを含む原料ガスを反応容器内で低い温度で分解させて水素ガスと窒素ガスとを含むガスを発生させるようにすると共に、アンモニアガスによって被処理物を炉内で窒化処理させる窒化装置の設備コストやランニングコストを低減させる。【解決手段】 炉20内で被処理物をアンモニアガスＮＨ３により５００～６００℃の温度で窒化処理する窒化装置において、アンモニアを含む原料ガスを５００～６００℃で分解させる触媒ｘが収容された反応容器10を炉内に挿入させ、反応容器内で分解させて得た水素ガスＨ２と窒素ガスＮ２とを含むガスを炉内に直接供給するようにした。【選択図】 図２
Resumen de: US2025207273A1
A water electrolysis electrode includes a conductive substrate and a layered double hydroxide layer. The conductive substrate has a surface including nickel having a plane orientation. The layered double hydroxide layer includes a layered double hydroxide including two or more transition metals. The layered double hydroxide layer is disposed on the surface.
Resumen de: JP2025130721A
【課題】電磁波の照射により効率よく酸素を発生し得る酸素発生剤を提供する。【解決手段】本発明の一態様によれば、酸素発生剤が提供される。この酸素発生剤は、３００ＭＨｚ以上２０ＧＨｚ以下の周波数を有する電磁波の照射により、３００℃以上７７０℃以下の温度環境下において酸素元素を離脱する特性を有する複合酸化物を含む。【選択図】図１
Resumen de: JP2025129457A
【課題】現在における二酸化炭素レーザーによって水素を生じさせる方法は産出の複雑度とコストが増やされる問題とエネルギー消耗の問題がある。【解決手段】本発明の低炭素水素の製造方法は、廃シリコンスラリーを乾燥させる工程（ａ）と、乾燥した廃シリコンスラリーを粉砕と選別し、重量百分率（ｗｔ％）が４０から９５の酸化ケイ素が得られ、そのうち金属ケイ素は酸化ケイ素含有量の５ｗｔ％から４０ｗｔ％を占める工程（ｂ）と、酸化ケイ素とアルカリ金属水溶液を混合反応させ、反応温度を１００℃から１５０℃の間に制御するすることによって水素が得られる工程（ｃ）とを備える。【選択図】図１
Resumen de: US2025270710A1
A water electrolysis system includes: a water electrolysis device for electrolyzing water; a gas-liquid separator for performing gas-liquid separation of a mixed fluid of hydrogen gas and water, the mixed fluid being led out from the water electrolysis device; a dehumidifier for dehumidifying the hydrogen gas separated from the mixed fluid by the gas-liquid separator; a delivery path for delivering the hydrogen gas dehumidified by the dehumidifier; a humidifier for humidifying the hydrogen gas delivered through the delivery path; and a compression device for compressing the hydrogen gas humidified by the humidifier.
Resumen de: WO2024126749A1
There is provided a multi-layered proton exchange membrane for water electrolysis, comprising: at least two recombination catalyst layers, each of the at least two recombination catalyst layers comprising a recombination catalyst and a first ion exchange material, wherein at least two recombination catalyst layers are separated by a region devoid of or substantially devoid of a recombination catalyst, and at least two reinforcing layers, each of the at least two reinforcing layers comprising a microporous polymer structure and a second ion exchange material which is at least partially imbibed within the microporous polymer structure.
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: JP2025129633A
【課題】固体高分子形の水電解セルを用いた水電解装置およびその周辺機器をコンテナ内に収容するにあたり、換気量を従来よりも抑える。【解決手段】水電解セルスタック１３、酸素ガス用の気液分離を行うタンク２１、水素ガス用気液分離機能を有するタンク５２、水素ガスの除湿を行う除湿器６２を、コンテナＣ１内に収容するにあたり、コンテナＣ１内の一側に寄せた領域Ｈに、水素ガス用気液分離機能を有するタンク５２、水素ガスの除湿を行う除湿器６２を配置する。領域Ｈは仕切り壁８１に囲まれ、領域Ｈ内の雰囲気は換気扇８３によってシステム外に放出される。仕切り壁８１における下部は、コンテナＣ１内における領域Ｈ以外の空間と連通している。【選択図】図３
Nº publicación: US2025276903A1 04/09/2025
Solicitante:
POLITECNICO DI MILANO [IT]
Politecnico di Milano
Resumen de: US2025276903A1
Process for producing syngas comprising the steps of:a) burning methane or natural gas with oxygen and optionally with water steam for producing flue gas comprising CO2 and H2O according to the following reaction:CH4+2O2→CO2+2H2O1b) cooling the flue gas coming from a) by heat exchange with a water stream which is thereby vapourised;c) condensing and removing water from the flue gas, coming from step b), thereby obtaining a mixture consisting essentially of CO2;d) carrying out an electrolysis of a steam stream in a solid oxide electrolytic cell (SOEC), whereby steam is split into oxygen gas and hydrogen gas according to the following reaction scheme:H2O(g)→H2+1/2O22e) separating and drying hydrogen gasf) carrying out a reverse water gas shift reaction between CO2 coming from step c) with H2 coming from step e) according to the following scheme:CO2+H2→CO+H2O.3
BOPI
Sede Electrónica
