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712
resultados
Última actualización
04/05/2025 [06:59:00]
Resultados 75 a 100 de 712
Resumen de: AU2023293861A1
The invention relates to an electrolysis system (21) comprising: at least one electrolysis cell (01); and a cathode-side water circuit (07) having a hydrogen separator (05); and an anode-side water circuit (06) having an oxygen separator (04); and an equalisation connection (22) which leads, coming from a cathode-side water connection (15), to the anode-side water circuit (06) via a pump (13) and an ion exchanger (12) via a node point (23) and an operating line (24); and an idle line (25) which (25) branches off upstream of the control line (24) and leads to the cathode-side gas connection (17).
Resumen de: CN119233941A
A process for cracking ammonia to form hydrogen is described, the process comprising the steps of: (i) passing the 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, the invention relates to a method for producing ammonium nitrate from flue gas, comprising the steps of (i) cooling the flue gas to a temperature below 170 DEG C, where yH2O is mole% of steam in the flue gas, P * H2O is the equilibrium vapor pressure of water in an aqueous ammonium nitrate solution, and p is the minimum operating pressure of the flue gas, and (ii) cooling the flue gas to a temperature below 170 DEG C. # imgabs0 #
Resumen de: GB2634845A
A hydrogen production facility 10 and associated method of use is disclosed, comprising a plurality of electrolyser stacks 12. The stacks 12 are for electrolyzing water, generating a hydrogen-aqueous solution mixture. A hydrogen separator 2 arrangement is described for producing a flow of hydrogen from the hydrogen-aqueous solution mixture. The hydrogen separator 2 arrangement comprises a plurality of first stage hydrogen collector separators 20,22, where the first stage hydrogen collector separators are fluidly coupled to a respective sub-set of the plurality of electrolyser stacks. The plurality of first stage hydrogen collector separators 20,22 are also fluidly coupled to a downstream hydrogen buffer vessel 28. The hydrogen separator 2 arrangement may comprise one or more hydrogen coalescing devices 16. A pressure balancing line 24 can also be provided between oxygen 22 and hydrogen separators 20 - it may also extend between hydrogen 28 and oxygen buffer 30 vessels.
Resumen de: GB2634846A
A hydrogen production facility 10 is described. The hydrogen production facility includes one or more electrolyser stacks 12 to electrolyze water. A hydrogen-aqueous solution mixture 12a and an oxygen-aqueous solution mixture 12b are generated, where the one or more electrolyser stacks comprise a plurality of membranes. The facility also includes a hydrogen separator to produce a flow of hydrogen from the hydrogen-aqueous solution mixture and an oxygen separator to produce a flow of oxygen from the oxygen-aqueous solution mixture. The hydrogen separator 2 comprises a hydrogen gas-liquid separation device and a hydrogen coalescing device 16. The oxygen separator 4 comprises an oxygen gas-liquid separation device and an oxygen coalescing device 18. The hydrogen separator 2 and the oxygen separator 4 can be coupled using a pressure balancing line 24 to prevent or reduce a pressure differential across the plurality of membranes.
Resumen de: EP4541451A1
This dehumidification apparatus is for dehumidifying a hydrogen gas that is produced by a hydrogen production device, the dehumidification apparatus comprising: a dehumidifier that includes an adsorption tower, inside of which there is provided an adsorbent that is capable of adsorbing moisture contained in the hydrogen gas; an inlet line for introducing the hydrogen gas from the hydrogen production device into the dehumidifier; an inlet valve that is provided to the inlet line; an outlet line for discharging the hydrogen gas that is dehumidified by the dehumidifier out from the dehumidifier; an outlet valve that is provided to the outlet line; and a control device that is configured to adjust the opening degree of the inlet valve and the opening degree of the outlet valve on the basis of the pressure within the adsorption tower during activation of the dehumidification apparatus.
Resumen de: EP4541943A1
An electrode for electrolysis, including:a conductive substrate; anda catalyst layer disposed on a surface of the conductive substrate,in which at least one of the following conditions (I) and (II) is satisfied:(I) the catalyst layer contains a ruthenium element and an iridium element, and a crystallite size is 50 Å or more and 100 Å or less, the crystallite size being calculated from a peak observed in a 2θ range of 27° or more and 28.5° or less in an XRD spectrum, the XRD spectrum being obtained by subjecting the catalyst layer to X-ray diffraction measurement and(II) the catalyst layer contains (i) a ruthenium element, (ii) an iridium element, and (iii) at least one kind of metal element M selected from the group consisting of W, Zn, Mn, Cu, Co, V, Ga, Ta, Ni, Fe, Mo, Nb and Zr, in the catalyst layer, a molar ratio of the ruthenium element to the iridium element, in terms of ruthenium element/iridium element, is 1.4 or more, and a molar ratio of the metal element M to the ruthenium element, in terms of metal element M/ruthenium element, is 0.06 or more and 3.5 or less.
Resumen de: WO2023242385A1
The invention relates to a method for producing hydrogen with adjustment of the power of a compressor according to the rate of production of an electrolyser, said method comprising the following steps: - a) electrolysing using an electrolyser producing hydrogen at a flow rate of between 0.5 and 5 standard m3/h at an outlet pressure of between 1 and 50 bar; - b) compressing the hydrogen using an electrochemical compressor. The method also comprises a step of correcting the power supply current of the electrochemical compressor with respect to a target pressure value.
Resumen de: WO2024047362A2
A membrane electrode assembly (MEA) for producing hydrogen in a water electrolyser is provided. The MEA comprises a polymer electrolyte membrane (REM), a cathode comprising a cathode catalyst on a first side of the REM, an anode comprising an anode catalyst on a second side of the REM, and a platinum-ruthenium (Pt-Ru) catalyst located on the second side of the REM for electrochemically converting hydrogen gas into hydrogen cations in use. The Pt-Ru catalyst is in electrical contact with the anode and ionic contact with the REM.
Resumen de: PL450203A1
Przedmiotem zgłoszenia jest sposób sprężania wodoru do wysokich ciśnień przy zastosowaniu CO2 w stanie nadkrytycznym, charakteryzujący się tym, że strumień gazu bogaty w wodór (3) miesza się w komorze mieszania (II) z strumieniem CO2 w jego punkcie krytycznym w temperaturze 36°C i pod ciśnieniem 72 bar, po czym otrzymany strumień mieszaniny wodoru i CO2 (5) poddaje się sprężaniu do uzyskania wymaganego wysokiego ciśnienia, a następnie sprężoną mieszaninę wodoru i CO2 strumieniem (6) kieruje się do elektrolizera węglanowego (IV), w którym pod wpływem przepuszczonego prądu elektrycznego (2) rozdziela się sprężoną mieszaninę (6) na strumień sprężonego wodoru (7) i strumień CO2 (4).
Resumen de: WO2025079526A1
This method for producing an electrode material that is to be used in an electrode of a water electrolysis device has an alkali treatment step for treating a specific NiAl-based alloy with an alkaline material in order to leach aluminum from the specific NiAl-based alloy, thereby obtaining Raney nickel. The specific NiAl-based alloy is an alloy that is represented by the composition formula Al4Ni(3-(x+y))FeyCox (where x and y are values satisfying 0.3≤x≤1.5 and 0≤y≤0.35).
Resumen de: JP2025065810A
【課題】 燃料極に供給するガスの加熱に要する熱エネルギーを低減することができる水素製造装置を提供すること。【解決手段】 水素製造装置（１）は、Ｎｉを含む燃料極（５１）と、固体電解質層（５３）と、空気極（５２）とを備え、燃料極に水素及び水蒸気が供給され、燃料極に供給された水蒸気を電気分解することにより燃料極にて水素を生成するとともに空気極にて酸素を生成し、燃料極から水素を含む燃料極排出ガスを排出し、空気極から酸素を含む空気極排出ガスを排出する電気化学セル（５０）と、燃料極排出ガスに含まれる水素の一部を前記燃料極に還流する還流部（６０）と、を備える。【選択図】 図１
Resumen de: CN119325656A
An electrical or electrosynthetic cell is disclosed, the architecture of which allows them to be easily stacked into a cell stack. These cells include polymer cell frames, functional materials (e.g., inter-electrode membranes, electrodes, metal bipolar plates, etc.) incorporated therein. For example, an electrical or electrosynthetic cell includes a polymeric cell frame, a first electrode and a second electrode, and an inter-electrode membrane positioned between the first electrode and the second electrode. The squeeze member is positioned adjacent to the first electrode. The squeeze member may be a metal bipolar plate squeeze member and/or a metal porous transport layer squeeze member. In one example, a polymer cell frame is sealed to a metal bipolar plate by a polymer-to-metal bond. In another example, at least one polymeric structural positioning member positions the metal bipolar plate against the polymeric cell frame. A cell stack comprising a plurality of cells is disclosed.
Resumen de: PL446449A1
Przedmiotem zgłoszenia jest system do wytwarzania wodoru, zwłaszcza na potrzeby gospodarstw domowych, składający się z urządzenia wytwórczego zawierającego szczelny zbiornik z elektrolitem, połączone z nim co najmniej dwa segmenty generatorów (1) do elektrolizy, połączone ze sobą równolegle i zasilane prądem za pomocą źródła prądu połączonego z jednym generatorem (2), gdzie każdy segment generatorów (1) składa się z dwóch zewnętrznych bocznych ścian (3) i co najmniej dwóch generatorów (2) ze wspólną wewnętrzną ścianą (4), zbudowanych z co najmniej pięciu płyt (8), odizolowanych od siebie uszczelkami (9), wyposażonych w przelotowe otwory (5) wykonane w jednej linii z wlotem (6) oraz z wylotem (7), a dwie skrajne płyty (8) każdego generatora (2) stanowią elektrody wyposażone w otwory do podłączenia zasilania prądem oraz z urządzenia zabezpieczającego zawierającego filtr dekompresyjny mokry (23) z bezpiecznikiem (27) połączony z jednej strony z filtrem osuszającym (21), a z długiej strony z mniejszym od niego filtrem dekompresyjnym suchym (25) z bezpiecznikiem (27) wypełnionym wełną tłumieniową, połączonym przez zawór zwrotny ciśnieniowy (34) z filtrem mokrym (35) wypełnionym alkoholem propylowym, połączonym z czujnikiem ciśnieniowym (17) oraz bezpiecznikiem gazowym kierunkowym (36), połączonym z zaworem końcowym (37), zabezpieczonym filtrem tłumiącym (38) z wełną miedzianą.
Resumen de: TW202428343A
The invention relates to the electrochemical production of hydrogen and lithium hydroxide from Li+-containing water with the aid of an LiSICon membrane. It addresses the problem of specifying a process that can be operated economically on an industrial scale too. In particular, the process should have good energy efficiency and achieve a high membrane lifetime even when the employed feed contains impurities that are harmful to LiSICon materials. A particular aspect of the process is that the selective separation of lithium by the membrane and an electrolysis of water take place simultaneously in the cell. A key aspect of the process is that the electrochemical process is carried out in basic media, more precisely at pH 9 to 13. The pH is adjusted by adding a basic compound to the feed.
Resumen de: FR3154125A1
L’invention concerne une unité (200) de production d’hydrogène comprenant : un empilement (102) de cellules à oxyde solide, un circuit (110) d’air, et un circuit de fuel (120) traversant ledit empilement (102) ; caractérisé en ce que ladite unité (200) est équipée d’un système d’arrêt comprenant : une entrée (202) et une sortie (204) de gaz neutre pour faire circuler un gaz neutre prédéterminé dans ledit empilement, une entrée (206) et une sortie (208) de gaz de sécurité pour faire circuler un gaz de sécurité dans ledit empilement (102), etun module (210) de contrôle pour faire passer ledit empilement (102) de la configuration de production à la configuration d’arrêt. Elle concerne également un procédé de pilotage d’une telle unité. Voir Figure 2
Resumen de: EP4541941A1
To provide a technique allowing reduction in the amount of usage of a catalyst material while alleviating performance degradation of a gas diffusion layer. A cell as an electrode structure comprises an electrolyte membrane (41), a gas diffusion layer (43), and a catalyst layer (45). The gas diffusion layer (43) is positioned on one side of the electrolyte membrane (41). The gas diffusion layer (43) is a porous layer. The catalyst layer (45) is positioned between the electrolyte membrane (41) and the gas diffusion layer (43). The catalyst layer (45) is formed from a catalyst material. A penetration part (433) formed in the gas diffusion layer (43) by the penetration the catalyst material having a thickness of 1 µm or less.
Resumen de: US2025122627A1
A method of generating hydrogen including applying a potential of greater than 0 to 2.0 V to an electrochemical cell that is partially submerged in an aqueous solution. On applying the potential, water in the aqueous solution is reduced, and thereby forms hydrogen. The electrochemical cell includes an electrocatalyst and a counter electrode. The electrocatalyst includes a substrate, WO3−x nanosheets, and CdS1−y nanospheres, in which, x is from greater than 0 to less than 3 and y is from greater than 0 to less than 1. The CdS1−y nanospheres are dispersed on the WO3−x nanosheets to form a nanocomposite, which is dispersed on a surface of the substrate. The WO3−x nanosheets have an average length of 600-800 nanometers (nm) and an average width of 300-500 nm, and the CdS1−y nanospheres have an average diameter of 10-50 nm.
Resumen de: DE102023128289A1
Die Erfindung betrifft eine Wasserstoffproduktionsanlage, umfassend mindestens eine erste Produktionslinie, umfassend zumindest eine erste Elektrolysevorrichtung mit einer Mehrzahl von ersten Elektrolysemodulen und eine erste Verdichtervorrichtung mit einer Mehrzahl von ersten Verdichtermodulen, eine Steuerung, umfassend zumindest ein Fahrplanerstellungsmodul und ein Steuermodul, wobei das Fahrplanerstellungsmodul eingerichtet ist zum Erstellen eines Ansteuerfahrplans zumindest für die ersten Elektrolysemodule und für die ersten Verdichtermodule, basierend auf jeweiligen Leistungskennlinien der jeweiligen ersten Elektrolysemodule, jeweiligen Leistungskennlinien der jeweiligen ersten Verdichtermodule und mindestens einem vorgegebenen Optimierungskriterium, und wobei das Steuermodul eingerichtet ist zum Ansteuern der ersten Verdichtermodule und der ersten Elektrolysemodule, basierend auf dem erstellten Ansteuerfahrplan.
Resumen de: US2025121344A1
A process for carrying out an endothermic reaction of a feed gas in a reactor system including a pressure shell housing a structured catalyst arranged for catalyzing the endothermic reaction of a feed gas, the structured catalyst including a macroscopic structure of electrically conductive material, the macroscopic structure supporting a ceramic coating, the ceramic coating supporting a catalytically active material.
Resumen de: US2025123002A1
In one aspect, an appliance for heating food, in particular a grill, and/or for emitting heat to the surroundings, in particular a heating appliance, includes at least one provision unit for providing hydrogen and at least one reaction unit for generating heat from the hydrogen. In one implementation, the reaction unit is designed as a catalytic unit for the flameless combustion of the hydrogen having at least one catalyst for catalyzing the hydrogen.
Resumen de: US2025125653A1
A mobile hydrogen supply system includes a natural energy power generation device that generates electric power from natural energy, and a hydrogen generation device that generates hydrogen. The hydrogen generation device is operable on electric power generated by the natural energy power generation device, and the natural energy power generation device and the hydrogen generation device are transportable.
Resumen de: US2025125395A1
A metal fluoride-functionalized proton-exchange solid support includes a proton-exchange solid support comprising a substituent group including an oxygen atom, and a metal fluoride group comprising a multivalent metal atom covalently bonded to the oxygen atom included in the substituent group, wherein the metal atom has a negative formal charge.
Resumen de: US2025125396A1
There is provided a composite electrolyte membrane for an electrochemical device, comprising at least one reinforced polymer electrolyte membrane having a first surface and an opposing second surface. The reinforced polymer electrolyte membrane comprises a microporous polymer structure and an ion exchange material, in which the ion exchange material is at least partially embedded within the microporous polymer structure to render the microporous polymer structure occlusive. The composite electrolyte membrane further comprises a plurality of porous layers comprising a first porous layer and a second porous layer, in which the first porous layer is adjacent to the first surface of the first reinforced polymer electrolyte and the second porous layer is adjacent to the second surface of the reinforced polymer electrolyte. Also disclosed is a membrane electrode assembly comprising such a composite electrolyte membrane and a redox flow battery, fuel cell, and electrolyzer comprising such a membrane electrode assembly.
Resumen de: US2025125390A1
A sustainable water fueled process and apparatus where a Unipolar electrolysis of water is described and the hydrogen and oxygen are stored before feeding a hydrogen fuel cell which is capable of providing sufficient electricity to provide power to a drive a vehicle, power a generator etc, after supplying electricity to the Unipolar electrolyser and the storage of the hydrogen and oxygen.
Nº publicación: AU2023349727A1 17/04/2025
Solicitante:
SIEMENS ENERGY GLOBAL GMBH & CO KG
SIEMENS ENERGY GLOBAL GMBH & CO. KG
Resumen de: AU2023349727A1
A system (1) for producing ammonia comprises an ammonia reactor (44) which is designed to produce ammonia (NH3) from a synthesis gas, the synthesis gas comprising hydrogen (H2) and nitrogen (N2), and the system also comprises an electrolizer (2) which is designed to produce hydrogen and oxygen from water, wherein: a compressor (6) is provided and is fluidically connected to the electrolizer (2) and is designed to compress the hydrogen (H2) coming from the electrolizer (2); and the compressor (6) is designed to compress mobile hydrogen (H2).
BOPI
Sede Electrónica
