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535
resultados
Última actualización
08/08/2025 [07:02:00]
Resultados 475 a 500 de 535
Resumen de: DE102023212440A1
Die Erfindung betrifft ein Offshore-Elektrolysesystem (100) umfassend eine Windkraftanlage (1) mit einem auf dem Meeresgrund verankerten Turm (19) und mit einer Elektrolyseanlage (5), wobei die Elektrolyseanlage (5) mit einer Versorgungsleitung (11) an die Windkraftanlage (1) angeschlossen ist, und wobei die Elektrolyseanlage (5) einen in einem Container (9) angeordneten Elektrolyseur (13) aufweist, wobei der Container (9) unterhalb des Meeresspiegels (25) angeordnet ist.Die Erfindung betrifft weiterhin ein Verfahren zum Betrieb eines entsprechenden Offshore-Elektrolysesystems. Dabei wird von einem unterhalb des Meeresspiegels (25) angeordneten Elektrolyseur (13) der Elektrolyseanlage (5) Wasser in Wasserstoff (H2) und Sauerstoff zerlegt, wobei der erzeugte Wasserstoff (H2) über eine Produktgasleitung (7) abtransportiert wird.
Resumen de: KR20250085499A
수전해 셀의 활성화 방법을 제공한다. 제공되는 수전해 셀의 활성화 방법은 ⅰ) 음극, 전해질막 및 양극을 포함하는 수전해 셀을 준비하는 셀 준비 단계, ⅱ) 수전해 셀에 증류수를 공급하여, 전해질막에 증류수를 흡수시키는 증류수 공급 단계, 및 ⅲ) 전해질막에 전압을 인가하여, 그 전위가 V1에서 V2로 증가한 후 V1으로 감소하는 사이클 또는 그 전위가 V2에서 V1으로 감소한 후 V2로 증가하는 사이클이 N회 반복되도록 하는 전위 증감 단계를 포함한다. V1은 0.01V 이상 1V 이하 범위로 제공되고, V2는 1.1V 이상 2.5V 이하 범위로 제공된다.
Resumen de: EP4566988A1
The invention relates to a process for the production of hydrogen gas (4) from ammonia, thereby obtaining an effluent gas (6) comprising hydrogen gas (4). Said process comprising the following steps:- providing an ammonia feedstock stream (8);- performing at least one electrical heating and conversion step, said step comprising:heating in at least one electric heater (12) the ammonia feedstock stream (8) so as to produce a heated gas stream (14); andperforming in at least one adiabatic reactor (16) an endothermic cracking reaction of the heated gas stream (14), said adiabatic reactor (16) comprising at least one catalyst bed (18) performing said endothermic cracking reaction of the ammonia feedstock stream (8) into said effluent gas (6).
Resumen de: EP4567079A1
Molybdenum carbide includes a Mo<sub>2</sub>C crystal structure, in which a content of carbon with respect to a total mass (100 mass%) of the molybdenum carbide is 6% or more.
Resumen de: CN117926298A
A system preferably includes a carbon dioxide reactor. A method for carbon dioxide reactor control preferably includes selecting a carbon dioxide reactor aspect based on a desired output composition, operating the carbon dioxide reactor under controlled process conditions to produce the desired output composition, and/or changing the process conditions to change the output composition.
Resumen de: KR20250084527A
본 발명의 일 실시예는, 암모니아 공급부와, 제1 연결라인을 통해 상기 암모니아 공급부와 연결되고, 암모니아 분해반응을 통해 암모니아를 분해하고, 상기 암모니아 분해반응으로부터 생성된 수소, 질소 및 미반응 암모니아를 포함하는 반응생성물을 배출하는 분해반응부와, 상기 암모니아 공급부와 상기 분해반응부 사이에 배치되고, 상기 제1 연결라인을 통과하는 상기 암모니아를 승압하는 승압부와, 상기 암모니아 공급부와 상기 분해반응부 사이에 배치되며, 상기 제1 연결라인을 통과하는 상기 암모니아를 가열하는 가열부를 포함하는, 암모니아를 이용한 수소 제조 및 공급 장치를 제공한다.
Resumen de: WO2025116586A1
Disclosed are a catalyst electrode for ammonia water electrolysis and a manufacturing method thereof, the durability and catalytic activity of the catalyst electrode being improved by synthesizing platinum catalyst seeds through an ultrasonic treatment of a specific duration and inhibiting poisoning of a platinum catalyst by nickel hydroxide formed on the surface of a nickel support.
Resumen de: EP4566988A1
The invention relates to a process for the production of hydrogen gas (4) from ammonia, thereby obtaining an effluent gas (6) comprising hydrogen gas (4). Said process comprising the following steps:- providing an ammonia feedstock stream (8);- performing at least one electrical heating and conversion step, said step comprising:heating in at least one electric heater (12) the ammonia feedstock stream (8) so as to produce a heated gas stream (14); andperforming in at least one adiabatic reactor (16) an endothermic cracking reaction of the heated gas stream (14), said adiabatic reactor (16) comprising at least one catalyst bed (18) performing said endothermic cracking reaction of the ammonia feedstock stream (8) into said effluent gas (6).
Resumen de: EP4567153A1
A method of electrolysing water, the method comprising:- providing an electrolyser comprising an anode; a cathode and optionally a separator;- contacting the cathode and/or the anode with an aqueous alkaline solution comprising water; and- electrolysing the water using a potential difference from the anode to the cathode,wherein at least one of the cathode and the separator comprises a substrate and a coating, wherein the coating comprises 9.5 to 35 wt% chromium; 10 to 75 wt% cobalt; and 10 to 60 wt% one or more further transition metals and/or one or more non-metallic elements selected from C, P, N and B, and wherein the coating catalyses hydrogen evolution at the cathode.
Resumen de: CN119630834A
The invention relates to a method for heating a furnace comprising radiant tubes and capable of heat-treating a running steel product, comprising the following steps: i. Supplying H2 and O2 to at least one of said radiant tubes such that said H2 and said O2 combine into heat and steam; ii. Recovering said steam from said at least one of said radiant tubes; iii. Electrolyzing the steam to produce H2 and O2; iv. Supplying said H2 and O2 produced in step iii to at least one of said radiant tubes such that said H2 and O2 combine into heat and steam.
Resumen de: CN119604469A
The present invention relates to a method for manufacturing an electrocatalyst for alkaline water electrolysis, said method comprising the steps of: (i) generating an aqueous electrolyte comprising suspended graphene and graphite nanoplatelets having lt in an electrochemical cell; the present invention relates to an electrolytic cell having a thickness of 100 nm, where the electrolytic cell comprises: a graphite negative electrode, (b) a graphite positive electrode, (c) an aqueous electrolyte comprising ions in a solvent, the ions comprising cations and anions, where the anions comprise sulfate anions; and wherein the method comprises the step of passing an electric current through the electrolysis cell to obtain exfoliated graphene and graphite nanosheet structures in the aqueous electrolyte in an amount greater than 5 g/l; (ii) forming an electroplating bath (2) comprising suspended graphene and graphite nanoplatelets in an amount greater than 2 g/l, said acidic electroplating bath comprising an aqueous solution of nickel sulfate and an electroplating solution comprising suspended graphene and graphite nanoplatelets in an amount greater than 5 g/l (thickness lt; 100 nm) of an aqueous electrolyte of step (i); and (iii) electrodepositing a combined layer of Ni or Ni alloy with graphene and graphite particles from the electroplating bath on a support to form an electrocatalyst.
Resumen de: US2025149602A1
A SOC stack system comprises one or more solid oxide cell stacks and multi-stream solid oxide cell stack heat exchanger(s).
Resumen de: AU2022322636A1
A highly crystalline mesoporous sulphur functionalized carbon nitride and a process for producing the same. The process including the steps of: providing a carbon nitride precursor material; mixing the carbon nitride precursor material with a metal salt to form a first mixture; and, thermally treating the first mixture to produce the crystalline carbon nitride.
Resumen de: EP4568049A1
Provided is an electrolyzer power control system that includes a reactive harmonic current reference generation stage. The reactive harmonic current reference generation stage selects a reactive power set point for reactive power drawn by a rectifier from a grid, determines a reactive power current reference based on the reactive power set point, aggregates the reactive power current reference with a reference current of harmonic currents that the rectifier injects in or draws from the grid, determines a reactive harmonic current reference that compensates for both the reactive power and the harmonic currents and outputs the reactive harmonic current reference. Switching signals that operate the rectifier are generated based on the reactive harmonic current reference.
Resumen de: EP4567157A2
An electrolyzer system includes stacks of electrolyzer cells configured receive steam and air, and output a hydrogen product stream and an oxygen exhaust stream, and a first heat pump configured to extract heat from the oxygen exhaust stream to generate a first portion of the steam provided to the stacks.
Resumen de: AU2023338223A1
00049 An iridium-based catalyst and method of making the catalyst are described. The catalyst comprises a catalytic material comprising iridium oxide or a mixture of iridium and iridium oxide nanoplates. It may have a BET surface area of at least 50 m
Resumen de: EP4567158A1
Provided is a hydrogen production system (100) including: an electrolysis module (19) that supplies steam to a hydrogen electrode (11) including a metal component and produces hydrogen through steam electrolysis; a hydrogen storage facility (40) that stores the generated hydrogen; a steam supply unit (20) that supplies steam to the hydrogen electrode (11); a regulation unit (50) that regulates a supply amount of the hydrogen supplied from the hydrogen storage facility (40) to the hydrogen electrode (11) and a supply amount of the steam supplied from the steam supply unit (20) to the hydrogen electrode (11); and a control device (80) for controlling the regulation unit (50) to switch a heating medium supply state in which a heating medium is supplied from a heating medium supply unit (70) to the hydrogen electrode (11) to a steam supply state in which steam is supplied from the steam supply unit (20) to the hydrogen electrode (11), in response to the electrolysis module (19) exceeding a first switching temperature when activating the electrolysis module (19).
Resumen de: EP4567159A2
There is disclosed an electrolyser (10, 20, 50) for operation at supercritical conditions, in which chambers (200, 210, 520) for retaining respective fluid reaction products are separated by a porous wall which permits a flow of electrolyte fluid therethrough and which inhibits a reverse flow of the respective reaction product. There is also disclosed a method of operating an electrolyser.
Resumen de: KR20250084643A
본 발명은 수전해용 촉매 제조방법 및 수전해용 촉매에 관한 것으로서, 본 발명에 따른 수전해용 촉매 제조방법은, 탄소 소재를 준비하는 단계; 상기 탄소 소재 상에 니켈을 도금하는 단계; 상기 니켈에 금을 코팅하는 단계; 이리듐을 드롭캐스팅하는 단계; 및 열처리하는 단계;를 포함하고, 상기 니켈, 상기 금 및 상기 이리듐의 중량비는 1 : 12~16 : 2~4인 것을 포함한다.
Resumen de: WO2025116600A1
Disclosed is a catalyst for a hydrogen evolution reaction or a hydrogen oxidation reaction, which can be used under alkaline conditions and has significantly improved kinetic properties compared to conventional commercially-available platinum catalysts. The present invention provides a catalyst for electrochemical hydrogen reactions under alkaline conditions, which has 2 to 20 ruthenium atoms supported in an ensemble form on the surface of a molybdenum carbide-carbon nanocomposite support, and a manufacturing method therefor, and a ruthenium-based catalyst electrode comprising the catalyst, which can be used as an electrode for anion exchange membrane-based water electrolysis cells and fuel cells.
Resumen de: DE102023212354A1
Elektrolysesystem mit einem Stack (1), der einen Anodenraum (2) und einen Kathodenraum (3) aufweist und der dazu eingerichtet ist, Wasser elektrolytisch in Wasserstoff und Sauerstoff aufzuspalten, wobei der Kathodenraum (3) einen Einlass (9) und einen Auslass (10) aufweist. Dem Stack (1) ist ein Gas-Flüssig-Separator (11) zugeordnet, der über eine Ausleitung (12) mit dem Auslass (10) des Kathodenraums (3) verbunden ist und in dem Flüssigkeit von Gas getrennt wird, wobei der Gas-Flüssig-Separator einen Gasauslass (13) zum Abströmen des abgetrennten Gases aufweist. Der Gasauslass (13) mündet in einen zentralen Gas-Flüssig-Separator (25) zur Trennung von Flüssigkeit und Gas.
Resumen de: CN119013421A
The hydrocarbon feed stream is exposed to heat in the absence of oxygen to convert the hydrocarbon feed stream into a solid stream and a gas stream. The gas stream is separated into an off-gas stream and a first hydrogen stream. The carbon is separated from the solids stream to produce a carbon stream. The water stream is electrolyzed to produce an oxygen stream and a second hydrogen stream. Iron ore is reduced to produce iron by flowing hydrogen through the iron ore. The iron and a first portion of the carbon in the carbon stream are combined to produce steel. At least a portion of the oxygen in the oxygen stream and a second portion of the carbon in the carbon stream are combined to produce electrical energy and a carbon dioxide stream.
Resumen de: JP2025087142A
【課題】 水の分解効率が高く、耐久性に優れる水分解用光触媒固定部材およびその製造方法を提供する。【解決手段】 水分解用光触媒固定部材は、金属多孔質体と、該金属多孔質体に固定される複合めっき皮膜と、を備える。該複合めっき皮膜は、金属成分とめっき用光触媒粒子とを含むめっき液を用いためっき処理により形成され、該金属成分の金属を含む皮膜部と、該めっき処理において共析した該めっき用光触媒粒子を有する水分解用光触媒粒子と、を有する。水分解用光触媒固定部材の製造方法は、金属成分とめっき用光触媒粒子とを含むめっき液を調製するめっき液調製工程と、調製した該めっき液を用いて、金属多孔質体を電解めっき処理または無電解めっき処理することにより、該めっき用光触媒粒子を共析させるめっき処理工程と、を有する。【選択図】 なし
Resumen de: CN120115163A
一种三功能非晶态/晶态Rh(OH)3/NiMoO4异质结电解水催化剂的制备方法及其应用，其具体步骤包括：以泡沫镍作为基底，硝酸镍作为镍源、钼酸钠作为钼源、尿素作为络合剂，加入水中形成混合溶液，通过水热法制备NiMoO4纳米花；再将三氯化作为铑源，使其溶解在水中形成溶液，并将NiMoO4浸入其中，在黑暗条件下静置12小时后干燥，即得催化剂。Rh(OH)3/NiMoO4在泡沫镍基底上生长均匀，材料的活性位点暴露较多，导电性能增强，三维纳米花结构使其与碱性电解液充分接触，在电解水过程中不易被腐蚀且更加稳定，并且铑和镍钼合金的协同效应改善了电解水反应动力学，对提高电解水性能具有重要作用。
Nº publicación: CN120117655A 10/06/2025
Solicitante:
天津理工大学
Resumen de: CN120117655A
本发明提供了一种硫化铋/钨酸铋/三氧化钨光阳极及其制备方法和光电催化析氢的应用，首先通过化学浴沉积法在FTO基底上生长WO3纳米片，然后将Bi2WO6利用溶剂热法负载在WO3的表面制得Bi2WO6/WO3，之后通过阴离子交换法制得Bi2S3/Bi2WO6/WO3复合薄膜。该光阳极在碱性电解液中表现出高效的光电催化水解产氢性能，偏压辅助模拟太阳光照射下的光电催化水解产氢量达到330μmol/h以上，太阳能电池辅助户外太阳光照射下的光电催化水解产氢量达到260μmol/h以上。本发明通过原位生长形成Bi2WO6/WO3异质结构，并通过简单的阴离子交换法将Bi2WO6/WO3硫化，硫化铋/钨酸铋/三氧化钨三元异质结的协同作用发挥出优异的光电催化产氢性能，且在24h光电流响应测试中保持良好的稳定性。
BOPI
Sede Electrónica
