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527
resultados
Última actualización
07/08/2025 [07:38:00]
Resultados 225 a 250 de 527
Resumen de: DE102023213299A1
Die Erfindung betrifft ein Verfahren zum Rückführen von Kathodenmedium (7) in einem Elektrolyseuraggregat (1), insbesondere einem PEM- oder AEM-Elektrolyseuraggregat (1), wobei zeitlich vor einem Wiedereinspeisen des einen Elektrolysezellenstapel (10) des Elektrolyseuraggregats (1) verlassenden Kathodenmediums (7) in ein Mediumreservoir (23) einer Mediumversorgung (20) des Elektrolyseuraggregats (1), ein im Kathodenmedium (7) vorliegender Wasserstoff (8) abgetrennt wird, und ferner zeitlich vor dem Wiedereinspeisen des Kathodenmediums (7) in das Mediumreservoir (23), in einem Verdünnschritt (V) des Rückführverfahrens dem Kathodenmedium (7) frisches Versorgungsmedium (3) zugeführt und derart eine Konzentration von Wasserstoff (8) im Kathodenmedium (7) verringert wird.
Resumen de: DE102023213301A1
Die Erfindung betrifft ein Verfahren zum Rückführen von Kathodenwasser (7) in einem Elektrolyseuraggregat (1), insbesondere einem PEM- oder AEM-Elektrolyseuraggregat (1), wobei zeitlich vor einem Wiedereinspeisen des einen Elektrolysezellenstapel (10) des Elektrolyseuraggregats (1) verlassenden Kathodenwassers (7) in eine Mediumversorgung (20) des Elektrolyseuraggregats (1), ein im Kathodenwasser (7) vorliegender Wasserstoff (8) abgetrennt wird, wobei in einer Wasserstoff-Abtrenneinrichtung (50) des Elektrolyseuraggregats (1), in einem ersten Abtrennschritt durch einen Überdruck in einem ersten Volumen (51) der Wasserstoff-Abtrenneinrichtung (50), Wasserstoff (8) aus dem wasserstoffreichen Kathodenwasser (7) abgetrennt wird, und in einem auf den ersten Abtrennschritt zeitlich folgenden zweiten Abtrennschritt durch eine Verweildauer des nun wasserstoffärmeren Kathodenwassers (7) in einem vom ersten Volumen (51) verschiedenen zweiten Volumen (52) der Wasserstoff-Abtrenneinrichtung (50), weiterer Wasserstoff (8) abgetrennt wird.
Resumen de: US2025205656A1
An apparatus, includes: a first raw material supply unit 110 including a filter housing 111, a supply fan 112, a flow regulator 113, an electronic valve 114, and an air supply line 115, wherein the supply fan 112 is operated to suck in external air, in the process, the HEPA filter (not shown) mounted inside the filter housing 112 filters fine dust and adjusts the air supply flow rate from the flow regulator 113 to the appropriate flow rate and supplies through the supply line 115 to the ion generator 200; a second raw material supply unit 120 including a pressure regulator 122, a flow regulator 123, an electronic valve 124, and an air supply line 125.
Resumen de: US2025205696A1
Described herein relates to a method that may be used for synthesizing a bifunctional electrocatalyst for electrochemical water splitting. The method may involve anodically converting an electrodeposited iron-nickel alloy film into an iron-nickel-oxygen nanofilm, followed by sequential phosphorization and/or selenylation treatments via chemical vapor deposition to form a quaternary iron-nickel phosphoselenide nanoporous film. This self-supported catalyst can facilitate both hydrogen evolution and oxygen evolution reactions, improving electrolysis efficiency. The inclusion of selenium may enhance electrical conductivity and stabilize catalytic performance, while the nanoporous structure can optimize mass transport. The film may be used as both anode and cathode in a two-electrode electrolyzer, enabling hydrogen production from pure water or seawater. Notably, the catalyst can demonstrate high turnover frequency and low overpotential, potentially surpassing conventional noble-metal-based catalysts. The system's stability under prolonged operation may underscore its potential for scalable hydrogen generation, reducing reliance on fossil fuels and advancing renewable energy applications.
Resumen de: WO2025135428A1
The present technology relates to a water electrolysis system having a power supply control function capable of protecting a water electrolysis stack from instability of renewable energy power. The water electrolysis system comprises: a renewable energy production device for producing renewable energy; a renewable energy storage device for storing the produced renewable energy; a water electrolysis device for electrolyzing water by using at least one of the renewable energy and stored energy supplied from the renewable energy storage device; a gas storage device for storing gas produced by electrolysis in the water electrolysis device; and a power supply control device which controls power supply to the water electrolysis device so as to, if a gradient of power change of the renewable energy is greater than a preset power increase reference gradient, charge the renewable energy storage device by distributing at least a portion of the renewable energy, and if the gradient of power change of the renewable energy is less than a preset power decrease reference gradient, supplement the renewable energy by distributing at least a portion of the stored energy of the renewable energy storage device.
Resumen de: WO2025135513A1
The present disclosure relates to a catalyst for an oxygen evolution reaction of a water electrolysis cell, a manufacturing method therefor, a membrane-electrode assembly for a water electrolysis cell including same, and a water electrolysis cell. The catalyst for the oxygen evolution reaction of a water electrolysis cell includes a heterogeneous noble metal composite which has a nanowire shape and includes different first and second noble metal oxides in a node structure, whereby the catalyst can reduce the amount of the noble metals used while improving performance and can enhance performance and durability depending on the types and lengths of the noble metals forming the heterogeneous noble metal composite.
Resumen de: WO2025135512A1
The present disclosure relates to: a catalyst for an oxygen evolution reaction of a water electrolysis cell; a method for manufacturing same; and a membrane-electrode assembly for a water electrolysis cell, and a water electrolysis cell, comprising same. More specifically, by manufacturing a catalyst for oxygen evolution reaction of a water electrolysis cell, having a structure in which active particles fill pores between nanoparticles of a carrier assembly manufactured in various forms or penetrate into the carrier assembly while being supported by the carrier assembly, performance is improved while reducing the amount of noble metal used. The active particles have stronger bonds than a form in which active particles are simply supported, and thus the active particles and the carrier assembly can have improved durability.
Resumen de: WO2025135565A1
The present invention relates to a composite water electrolysis system using nuclear power plant heat and electrical energy, and, to a composite water electrolysis system for receiving heat energy and electrical energy generated in each of a plurality of SMRs, the system comprising: a heat energy storage hub for storing the heat energy generated in each of the plurality of SMRs; an electrical energy storage hub for storing electrical energy generated in each of the plurality of SMRs; and a composite hydrogen production unit, which receives heat and electricity from the heat energy storage hub and the electrical energy storage hub so as to generate hydrogen and oxygen. According to one embodiment, technologies such as hydrogen production through high-temperature water electrolysis, low-temperature water electrolysis, and ammonia decomposition are diversified, hydrogen and oxygen produced through high-temperature water electrolysis are in a high-temperature state, and the waste heat energy discarded when hydrogen and oxygen are cooled to a low temperature in order to be stored can be used as an additional heat source of low-temperature water electrolysis and ammonia hydrogen decomposition devices.
Resumen de: WO2025137083A1
An electrolyzer for gaseous production such as hydrogen gas includes an oscillating electrode driven at a natural frequency of the gaseous bubbles improves output by readily removing the gaseous bubble product from the electrode surface, thereby exposing greater electrode surface area for subsequent electrolysis reactions. A natural frequency of the gaseous product determines an oscillation frequency with which to drive the electrode accumulating the gaseous product, such as hydrogen bubbles, to agitate and release the bubbles which then rise to the surface of the liquid filled containment. Integrating oscillation logic for agitating the otherwise stationary electrode or cathode in a PEM water electrolyzer improves hydrogen production by readily evacuating the generated hydrogen to free up the electrode area for additional electrolysis reactions.
Resumen de: WO2025135348A1
The present disclosure relates to a method for preparing a catalyst for an oxygen evolution reaction in a water electrolysis cell, and a water electrolysis cell membrane-electrode assembly and a water electrolysis cell, which comprise the catalyst prepared using same, and the method for preparing a catalyst for an oxygen evolution reaction in a water electrolysis cell comprises preparing a plurality of noble metal oxide seeds, and preparing a noble metal oxide aggregate by using the plurality of noble metal oxide seeds, thereby increasing the surface area thereof by means of pores between noble metal oxide particles, and thus performance and durability can be improved.
Resumen de: WO2025135328A1
The present invention relates to a water electrolysis system comprising: a hydrogen (H2) removal device; and an oxygen (O2) removal device, wherein the hydrogen (H2) removal device removes, from an oxygen (O2) stream, hydrogen (H2), and the oxygen (O2) removal device removes, from a hydrogen (H2) stream, oxygen (O2). By removing hydrogen (H2) and oxygen (O2) from the respective gas streams, the likelihood of explosion accidents during the movement of the gas streams is remarkably reduced, and the purity requirements of various industrial gases can be satisfied without a separate purification process.
Resumen de: WO2025135726A1
The present invention provides a hydrogen vent system for discharging hydrogen generated in a high-temperature water electrolysis stack to the outside, comprising: a first pipe unit connected to the high-temperature water electrolysis stack and having a curved portion; a drain line which is connected to the first pipe unit and through which condensed water is drained; and a discharge unit which is connected to the first pipe unit and which releases hydrogen upward into the air, wherein a surge tank that maintains pressure and moves the condensed water to the drain line is disposed in the first pipe unit.
Resumen de: WO2025135742A1
A control method of a high-temperature water electrolysis system, according to a first embodiment of the present invention, comprises the steps of: determining an operating temperature of a solid oxide water electrolysis stack in a high-temperature water electrolysis system including the solid oxide water electrolysis stack; selecting an operation mode of the solid oxide water electrolysis stack by comparing the operating temperature with a supply temperature of gas supplied to the solid oxide water electrolysis stack; determining a target voltage applied to the solid oxide water electrolysis stack according to the operation mode of the solid oxide water electrolysis stack; and applying the target voltage applied to the solid oxide water electrolysis stack in a step-up manner according to the operation mode of the solid oxide water electrolysis stack.
Resumen de: WO2025135743A1
The present invention provides a water electrolysis stack assembly and a hot box apparatus. In an embodiment, provided is a water electrolysis stack assembly including: a case including an upper surface part, a side surface part, and a gas outflow pipe formed in the side surface part; and a stack accommodated in an inner space of the case, wherein a surface pressure is applied to the stack by the upper surface part of the case.
Resumen de: WO2025135740A1
The present invention relates to a device for producing hydrogen from ammonia for a ship. According to the present invention, high-pressure hydrogen can be produced by using liquefied ammonia for a ship, and hydrogen can be economically produced by utilizing unconverted ammonia discharged from a decomposition reactor and off-gas discharged from a pressure swing adsorption device as a heat source for ammonia decomposition through a heat exchange network of the ship.
Resumen de: JP2025095274A
【課題】予備処理を行わなくてもアルカリ水電解時の耐久性（耐金属溶出性）を確保することが可能なアルカリ水電解装置用部材を与える省Ｎｉ型のアルカリ水電解装置用ステンレス鋼材を提供する。【解決手段】質量基準で、Ｃ：０．１００％以下、Ｓｉ：１．００％以下、Ｍｎ：３．００～１２．００％、Ｎｉ：７．００～９．００％、Ｐ：０．００３０％以下、Ｓ：０．００３０％以下、Ｃｒ：１０．０～１８．０％、Ｎ：０．０１～０．２５％、Ｃｕ：０．０１～１．００％、Ｍｏ：０．０１～１．００％、Ａｌ：０．００５～０．０８０％、Ｂ：０．０００１～０．０１００％、Ｃａ：０．０００５～０．０１００％、Ｏ：０．０１００％以下を含み、残部がＦｅ及び不純物からなるアルカリ水電解装置用ステンレス鋼材とする。【選択図】なし
Resumen de: CN119403758A
A process for dissociating ammonia into a dissociated hydrogen/nitrogen stream in a catalyst tube within a radiant tube furnace and an adiabatic or isothermal unit containing a catalyst, and a downstream purification process unit for purifying the dissociated hydrogen/nitrogen stream into a high purity hydrogen product.
Resumen de: AU2023284373A1
The present invention relates to the technical field of hydrogen energy power generation, and provided is a hydrogen energy uninterruptible power system. Said system comprises a hydrogen production unit, a power storage unit, a power generation apparatus, and a control unit, wherein the hydrogen production unit is able to utilize electrolysis to prepare hydrogen and oxygen gases; the power storage unit can supply power to the hydrogen production unit, and can output power to the outside; the power generation apparatus can receive the hydrogen and oxygen gases output by the hydrogen production unit and generate power, and the power generation apparatus can output power to the outside or transfer power to the power storage unit; and the control unit communicates with the hydrogen production unit, the power storage unit, and the power generation apparatus by means of electrical signals.
Resumen de: KR20250094789A
본 발명은 수전해 시스템의 수명 예측 방법 및 장치에 관한 것이다. 본 발명에 따른 수전해 시스템의 수명 예측 방법은, 수전해 시스템에 설치된 센서들을 통해 측정된 과거의 각 시계열 데이터를 수집하는 단계; 인공신경망 모델을 이용하여 과거의 각 시계열 데이터로부터 수전해 스택의 성능 데이터를 산출하는 단계; 수전해 스택의 산출된 성능 데이터를 실제 성능 데이터와 비교하여 오차 값을 구하는 단계; 및 오차 값을 이용하여 인공신경망 모델의 파라미터를 조정하는 단계를 포함할 수 있다.
Resumen de: WO2025131283A1
The invention relates to a method, a system and the use thereof. According to the invention, hydrogen and oxygen are generated by means of a water-borne platform and, for example, the hydrogen and oxygen so produced are transported ashore and compressed and/or further compressed there.
Resumen de: KR20250094950A
본 발명은, 스택 하우징의 면들을 각각 복수의 영역들로 구획하고, 각 영역마다 열선과 온도 센서가 구비됨으로써, 영역별 온도 측정 및 제어가 가능하여, 구조가 간단하면서도 온도 제어 및 관리가 용이하여 에너지 효율을 향상시킬 수 있다. 또한, 스택 하우징의 면들에 열선과 온도 센서가 구비되고, 스택에는 열선이나 온도 센서가 구비되지 않기 때문에, 상기 스택의 개수나 형상을 설계 변경하거나 상기 스택을 교체하더라도 상기 스택 하우징을 그대로 적용할 수 있으므로, 설치 편의성 및 확장성을 확보할 수 있다. 또한, 복수의 온도 센서들에서 측정된 영역별 온도에 따라 복수의 열선들을 선택적으로 작동시킬 수 있으므로, 상기 스택의 온도를 보다 정밀하게 제어할 수 있다. 또한, 미리 학습된 인공지능 알고리즘을 이용하여 복수의 온도 센서들로부터 측정된 영역별 온도에 따라 복수의 스택들의 온도를 도출하고, 상기 스택들의 온도에 따라 각 열선들의 작동 여부와 작동 시간을 포함한 개별 작동 데이터를 도출할 수 있으므로, 보다 신속하고 정밀하게 스택들의 온도를 제어할 수 있다.
Resumen de: WO2025135428A1
The present technology relates to a water electrolysis system having a power supply control function capable of protecting a water electrolysis stack from instability of renewable energy power. The water electrolysis system comprises: a renewable energy production device for producing renewable energy; a renewable energy storage device for storing the produced renewable energy; a water electrolysis device for electrolyzing water by using at least one of the renewable energy and stored energy supplied from the renewable energy storage device; a gas storage device for storing gas produced by electrolysis in the water electrolysis device; and a power supply control device which controls power supply to the water electrolysis device so as to, if a gradient of power change of the renewable energy is greater than a preset power increase reference gradient, charge the renewable energy storage device by distributing at least a portion of the renewable energy, and if the gradient of power change of the renewable energy is less than a preset power decrease reference gradient, supplement the renewable energy by distributing at least a portion of the stored energy of the renewable energy storage device.
Resumen de: KR20250094156A
본 발명의 예시적인 실시예들에 따르면, 전기화학 장치 내지 스택에서 발생한 열을 효과적으로 회수할 수 있는 매니폴드가 제공된다.
Resumen de: US2024133063A1
An electrolyzer system includes a vaporizer configured to store a first volume of liquid water and to vaporize water to humidify a cathode inlet stream of an electrolyzer cell module, a cold water tank positioned at a height greater than that of the first volume of liquid water and configured to store a second volume of water, and a valve configured to open and close. The water from the cold water tank is allowed to flow through the valve into the vaporizer when the valve is open.
Nº publicación: KR20250094140A 25/06/2025
Solicitante:
POSCO HOLDINGS INC [KR]
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Resumen de: WO2025135740A1
The present invention relates to a device for producing hydrogen from ammonia for a ship. According to the present invention, high-pressure hydrogen can be produced by using liquefied ammonia for a ship, and hydrogen can be economically produced by utilizing unconverted ammonia discharged from a decomposition reactor and off-gas discharged from a pressure swing adsorption device as a heat source for ammonia decomposition through a heat exchange network of the ship.
BOPI
Sede Electrónica
