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873
resultados
Última actualización
06/05/2025 [07:06:00]
Resultados 725 a 750 de 873
Resumen de: CN118871622A
The invention relates to a method for operating an electrolysis device (10) for producing hydrogen and oxygen, having a membrane (22) which is permeable to OH ions and which separates an anode chamber (14) and a cathode chamber (16) from one another, comprising at least the following method steps: a) temporarily dry operating the cathode chamber (16), b) a diffusion of water molecules through the membrane (22) from the anode chamber (14) into the cathode chamber (16) occurs temporarily, c) a differential pressure (42) between the cathode chamber (16) and the anode chamber (14) is varied by means of a throttle valve (46), and d) the humidification/wetting of the cathode chamber (16) is adjusted by adjusting the defined differential pressure (42).
Resumen de: DE102023208644A1
Die Erfindung betrifft ein Verfahren zum Betreiben einer Elektrolyseanlage (1) zur Herstellung von Wasserstoff, umfassend mindestens einen Stack (2), der über eine Stromversorgung (3) mit Strom und über einen Wasserkreislauf (4) mit Wasser versorgt wird, wobei das Wasser als Edukt und als Kühlmittel verwendet wird. Erfindungsgemäß wird ein Lastsprung mittels Prädiktionsinformationen prädiziert und vor Eintritt des prädizierten Lastsprungs wird der dem mindestens einen Stack über den Wasserkreislauf zugeführte Volumenstrom an den prädizierten Lastsprung angepasst.Die Erfindung betrifft ferner eine Steuereinheit zur Ausführung von Verfahrensschritten.
Resumen de: WO2025053690A1
The present invention relates to an electrode for hydrogen evolution and a manufacturing method therefor, the electrode comprising a molybdenum-ruthenium-titanium composite oxide layer formed on a porous titanium metal substrate.
Resumen de: CN118843597A
The present invention relates to a process for reforming ammonia wherein the process comprises (i) providing a reactor containing a catalyst comprising Ru supported on one or more support materials wherein the one or more support materials show a BET surface area of 20 m2/g or greater, and wherein the catalyst contains 1 wt.-% or less Ni and Co; (ii) preparing a feed gas stream comprising NH3; (iii) feeding the feed gas stream prepared in (ii) into the reactor and contacting the feed gas stream with the catalyst at a pressure greater than 10 abar and a temperature in the range of 200 DEG C to 750 DEG C; (iv) removing an effluent gas stream comprising H2 and N2 from the reactor.
Resumen de: CN119156465A
In a process for producing a metal borohydride M (BH4) n from a metal metaborate M (BO2) n, where M is a metal, such as a metallic metal, an alkali metal, an alkaline earth metal, a transition metal or a chemical compound exhibiting metallic properties, and n is the valence of the metal, the metal borohydride is formed by reacting a metal hydride MHn with trimethyl borate B (OMe) 3, and the metal trimethyl borate is formed by the reaction of boric acid H3BO3 and methanol MeOH under the removal of water H2O. In an electrochemical cell, the electrochemical cell is used to convert metal metaborate and water H2O into boric acid. An electrochemical cell has an anode half-cell and a cathode half-cell separated by a cation exchange membrane, and both the anode half-cell and the cathode half-cell are provided with a solvent and water. The metal metaborate is provided to the anode half-cell wherein acid ions H + and electrons e-are generated at the anode by electrolysis of water, and H + reacts with the metal metaborate and water. The cation exchange membrane may transfer the metal ion Mn + from the anode half-cell to the cathode half-cell and form a metal hydroxide M (OH) n in the cathode half-cell.
Resumen de: JP2025035258A
【課題】水電解セルの異常検知と、検知した異常の判別が可能な水電解システムを提供する。【解決手段】水電解セルを備える水電解システムと、水電解システムの異常モードを判別する異常判別システムとを備える水素製造システムを構成する。異常判別システムは、水電解セルの温度、水供給量、電流、及び、電圧の少なくとも１つ以上の時間変化のデータを取得するデータ取得部を備える。また、異常判別システムは、データ取得部が取得したデータを基に、水電解セルの異常を検知する異常検知部と、異常が発生した水電解セルの異常モードを判別する異常モード判別部とを備える。異常モード判別部は、複数の異常モードにおける電流又は電圧の挙動を学習させて得られた機械学習モデルと、データ取得部が取得したデータとから異常モードを判別する。【選択図】図１
Resumen de: JP2025033746A
【課題】水蒸気電解装置の安全性を向上させる。【解決手段】水蒸気電解装置は、水蒸気を電解して水素および酸素を生成する電解セルスタックと、電解セルスタックを収容する空間を有し、電解セルスタックを加熱する加熱炉と、空間の電解セルスタックの外側の領域における酸素濃度を測定する酸素濃度計と、測定された酸素濃度に応じて電解セルスタックの運転を制御する制御装置と、を含む。【選択図】図１
Resumen de: DE102023124675A1
Es ist eine Bipolarplatte (10) und ein Brennstoffzellensystem (100), für eine Brennstoffzelle mit einem Zwei-Phasen-Kühlsystem angegeben, aufweisend:einen Kühlmitteleinlass (12),einen Kühlmittelauslass (14),eine Vielzahl von Kühlmittelkanälen (16),wobei der Kühlmitteleinlass (12) über die Vielzahl von Kühlmittelkanälen (16) mit dem Kühlmittelauslass (14) in Fluidverbindung steht,wobei mindestens eine Innenfläche von Kühlmitteleinlass (12), Kühlmittelauslass (14) und mindestens einem der Vielzahl von Kühlmittelkanälen (16) eine Oberflächenbehandlung aufweist um einen Strömungsverlauf einer Kühlflüssigkeit entlang mindestens einen Innenfläche und/oder einen Phasenübergang der Kühlflüssigkeit zu beeinflussen.
Resumen de: JP2025033890A
【課題】本発明は、アルカリ水を電気分解することで水素を製造する方法において、陽極反応を酸素発生反応からヨウ素酸イオン生成反応へ転換し、アルカリ水電解方法を高効率かつ省電力で行うことを目的とする。【解決手段】本発明は、ヨウ化物イオンを含み、濃度が１ｍｏｌ／Ｌ以上のアルカリ金属水酸化物水溶液を電気分解し、陰極で水素ガスを生成し、陽極でヨウ素酸イオンを生成する、無隔膜式アルカリ水電解方法及び無隔膜式アルカリ水電解装置に関する。【選択図】図９
Resumen de: US2025075353A1
An electrode according to an embodiment including a support and a catalyst layer provided on the support and alternately stacked with sheet layers and gap layers. The catalyst layer is for electrolysis. The catalyst layer comprises a first metal which is one or more elements selected from the group consisting of Ir, Ru, Pt, Pd, Hf, V, Au, Ta, W, Nb, Zr, Mo, and Cr, and a second metal which is one or more elements selected from the group consisting of Ni, Co, Mn, Fe, Cu, Al, and Zn. The catalyst layer comprises a first region and a second region. The first metal in the first region is more oxidized than the first metal in the second region. A ratio of the second metal in the first region is greater than the ratio of the second metal in the second region.
Resumen de: WO2025054276A1
Solid oxide electrochemical cells (SOECs) stand out as a highly promising clean energy technology that offers several benefits, showing significant potential to play a pivotal role in the transition towards a sustainable and low-carbon energy future. SOECs can efficiently convert the chemical energy stored in fuels to electricity in fuel cell mode, and produce various chemicals from abundant feedstocks (e.g., CO2, H2O, N2) and intermittent solar/wind-based renewable electricity. In-situ formed hybrid oxygen electrode materials have been developed from solid composite materials comprising a double perovskite phase and a single perovskite phase, which significantly improve the surface oxygen exchange coefficient and bulk oxygen-ion diffusion coefficient, enhancing the OER and ORR electrocatalytic activities. The SOECs equipped with these newly-developed oxygen electrode materials achieve exceptional performance for power generation using both hydrogen and propane as fuels. Additionally, the SOECs attain unprecedented performance in steam electrolysis mode. The SOECs also deliver remarkable stability during the accelerated stability testing, highlighting the great potential the solid composite materials as a high-performance oxygen electrode for next generation SOECs.
Resumen de: WO2025053690A1
The present invention relates to an electrode for hydrogen evolution and a manufacturing method therefor, the electrode comprising a molybdenum-ruthenium-titanium composite oxide layer formed on a porous titanium metal substrate.
Resumen de: WO2025053532A1
The present invention relates to a membrane electrode assembly manufacturing method comprising the steps of: (S1) forming a first catalyst layer on the other surface of a separation membrane having a first carrier film attached to one surface thereof; (S2) attaching a second carrier film to the other surface of the separation membrane on which the first catalyst layer is formed; (S3) removing the first carrier film attached to one surface of the separation membrane; and (S4) forming a second catalyst layer on one surface of the separation membrane from which the first carrier film is removed, wherein the second carrier film includes a first area corresponding to the first catalyst layer on the other surface of the separation membrane, and a second area, which is the remaining area that excludes the first area, and the second area of the second carrier film is coated with an adhesive on a surface facing the other surface of the separation membrane on which the first catalyst layer is formed.
Resumen de: WO2025052215A1
An apparatus and a method for production of green hydrogen using steam generated during the production of green ammonia controls: (i) a supply of steam from an ammonia reactor unit to a heat exchange unit at a first timestamp; (ii) the heat exchange unit to extract a pre-determined amount of heat from steam, and to transfer a pre-determined amount of heat to a water supply unit. The apparatus also controls the water supply unit to increase the water temperature from a first temperature value to a second temperature value using a transferred, pre-determined amount of heat. The apparatus also controls the water supply to an electrolyzer unit. The apparatus also controls the ammonia reactor unit to produce green ammonia and steam at a second timestamp using produced green hydrogen. The apparatus also controls an ammonia storage unit to store produced green ammonia at the first and second timestamps.
Resumen de: WO2025052013A1
The present invention relates to a method for producing hydrogen by means of thermochemical water dissociation cycles under (quasi-)isothermal conditions, wherein said method comprises arranging a large amount of active material (104) inside a reaction volume (109) of a reactor (103); heating the active material (104), reducing the active material (104) and generating oxygen in the reaction volume; evacuating the oxygen produced via a first evacuation path (111) of the outlet (106) of the reactor (103); injecting water into the reaction volume (109) of the reactor, oxidating the active material (104) and producing hydrogen; evacuating the hydrogen produced via a second evacuation path (112) of the outlet (106) of the device (100); and separating the evacuated hydrogen and remaining water. The invention further relates to a device for producing hydrogen.
Resumen de: WO2025052016A1
The present invention relates to a method for obtaining hydrogen through water molecule dissociation using thermochemical reactions under (quasi-)isothermal conditions, which comprises the following steps: placing active material (103) in the reaction chamber (109) of a reactor (101); reducing the active material (103) by supplying heat; evacuating the oxygen produced through a first outlet (106); injecting water into the reaction chamber (109); oxidising the active material (103), thereby producing hydrogen; filtering the hydrogen produced through a selective filter (104) during the oxidisation of the active material (103); and evacuating the filtered hydrogen through a second outlet (107), thereby obtaining a flow of high-purity hydrogen. The invention also relates to a device for carrying out the method.
Resumen de: WO2025050699A1
The present application provides a method for improving the surface energy of nickel metal, and a nickel-copper binary metal material and a use thereof. The method comprises: depositing a modified metal layer composed of second metal on the surface of a metal matrix composed of first metal, wherein one of the first metal and the second metal is nickel metal, and the first metal can form a solid solution with the second metal; then performing short-time heat treatment in a protective atmosphere, so that the atoms of the first metal and the atoms of the second metal are uniformly mixed without segregation and phase separation of elements, thereby obtaining a nickel-based binary metal material having surface energy ranging from 30 mJ/m2 to 80 mJ/m2. The method for improving the surface energy of a nickel metal matrix of the present application is simple and is easy to popularize; and the prepared nickel-based binary metal material has high surface energy and good hydrophilicity, and has wide prospects of application in the fields of hydrogen production by water electrolysis and the like.
Resumen de: US2025083097A1
A method and system for capturing carbon dioxide from the air with a carbon contactor (also referred as to a carbon capture device), using an carbonate lean/poor alkaline solution to produce a carbonate rich alkaline rich solution, sending the resulting carbonate rich solution to an electrolyzer to generate hydrogen gas, and using the hydrogen gas to power a power plant, the hydrogen gas either used alone, or blended with natural gas or ammonia, and at least some of the power generated by the power plant is used to power the contactor and the electrolyzer.
Resumen de: US2025083134A1
The present invention relates to a Ni—Fe-based catalyst for OER doped with a metal having lower electronegativity than Ni and Fe, and a method for manufacturing the same. More specifically, the present invention offers the advantage of using nickel, a non-noble metal-based active catalyst, which has high economic value without the need for noble metals. The present invention provides a method for manufacturing a Ni—Fe-based catalyst for OER that exhibits excellent activity in oxygen generation reaction by maximizing the surface area compared to existing noble metal-based catalysts, thereby contributing significantly to the cost reduction of hydrogen production.
Resumen de: US2025083118A1
Systems and methods for eliminating carbon dioxide and capturing solid carbon are disclosed. By eliminating carbon dioxide gas, e.g., from an effluent exhaust stream of a fossil fuel fired electric power production facility, the inventive concepts presented herein represent an environmentally-clean solution that permanently eliminates greenhouse gases while at the same time producing captured solid carbon products that are useful in various applications including advanced composite material synthesis (e.g., carbon fiber, 3D graphene) and energy storage (e.g., battery technology). Capture of solid carbon during the disclosed process for eliminating greenhouse gasses avoids the inefficiencies and risks associated with conventional carbon dioxide sequestration. Colocation of the disclosed reactor with a fossil fuel fired power production facility brings to bear an environmentally beneficial, and financially viable approach for permanently capturing vast amounts of solid carbon from carbon dioxide gas and other greenhouse gases that would otherwise be released into Earth's biosphere.
Resumen de: US2025084828A1
The present invention relates to an electric power and hydrogen generation system comprising a tower having an internal structure and an external structure, said internal and external structures being interconnected; a plurality of helical turbines each coupled to an electric generator, said turbines being arranged vertically one above the other inside the internal structure; a plurality of humidity and water collectors arranged in the interconnection spaces of said internal and external structures; the external structure presents outer surfaces, which are covered using solar cells; a tower base holds within it a system for the production, storage and supply of hydrogen and electricity.
Resumen de: US2025084540A1
The present invention discloses a method for preparing glycollate by electro-catalyzing ethylene glycol or electro-catalytically reforming waste plastic polyethylene terephthalate (PET). The method for preparing glycollate by electro-catalytically reforming waste plastic PET includes: 1) dissolving the waste plastic PET into an alkali liquid, and carrying out solid-liquid separation after hydrolysis reaction to obtain an alkaline electrolyte containing ethylene glycol; and 2) assembling an anode catalyst, a cathode catalyst and the alkaline electrolyte containing the ethylene glycol into an electrolytic cell, and applying voltage for electrocatalytic reaction, where the ethylene glycol is oxidized at an anode to generate glycollate, and water is reduced at a cathode to generate hydrogen. The present invention firstly provides conversion of the waste plastic PET into the glycollate by means of an electrocatalysis technology in the art, and the method not only utilizes resources and energy of the waste plastic PET, but also provides a new idea for low-cost and large-scale production of glycolic acid.
Resumen de: US2025084746A1
A method of generating hydrogen in a subsurface formation, the method comprising injecting oxidizable metal particles into a subsurface formation comprising subsurface water and a geologic trap, wherein the subsurface water has a temperature of from 18° C. to 400° C. and a pressure of from 500 psi to 10,000 psi, the geologic trap comprises one or both of a structural trap or a stratigraphic trap, the geologic trap substantially prevents vertical migration of the subsurface water out of the subsurface formation, and the oxidizable metal particles react with the subsurface water to form hydrogen, metal oxides, metal hydroxides, or combinations thereof.
Resumen de: US2025084552A1
The invention relates to an electrolysis system having a plurality of electrolytic cells for water electrolysis. An anode-side water circuit leads from an anode-side outlet, via an oxygen separator, a main pump and a cooling device, to an anode-side inlet of an anode chamber. A cathode-side water circuit leads, similarly, from a cathode-side outlet, via an oxygen separator, a main pump and a cooling device, to a cathode-side inlet of a cathode chamber. Cleaning of the water during non-operation of the electrolysis system is achieved by adding an anode-side partial-flow branch, which leads from a branch-off point, via an auxiliary ion exchanger, to a collection point in the anode-side water circuit.
Nº publicación: WO2025051333A1 13/03/2025
Solicitante:
SCHAEFFLER TECH AG & CO KG [DE]
SCHAEFFLER TECHNOLOGIES AG & CO. KG
Resumen de: WO2025051333A1
The invention relates to a plate-like element (10) of a cell stack (2) of an electrochemical system (1), having a first plate side (26), a second plate side (27), a plurality of openings (13, 21, 22, 23, 23') and a first structure (14) for forming a flow field for coolant and several further structures (14') for forming distributors for operating media on the first plate side (26). The structure (14) comprises a coolant conducting structure (15, 16) through which a first coolant path (15) and a second coolant path (16) arranged mirror-symmetrically thereto are formed, each of which have, starting from one of the openings (21), an elongate inflow portion (17), a centre portion (18) which starts from the inflow portion (17), fans out and describes at least one meandering bend (19), and an elongate outflow portion (20) which adjoins the centre potion (18) and is narrower than the centre portion (18). A longitudinal axis (30) of the inflow portion (17) of the first coolant path (15) matches a longitudinal axis (30) of the outflow portion (20) of the second coolant path (16), and a longitudinal axis (30') of the inflow portion (17) of the second coolant path (16) matches a longitudinal axis (30') of the outflow portion (20) of the first coolant path (15). The invention also relates to a cell stack (2) comprising a plurality of such plate-like elements (10) which are parallel to one another.
BOPI
Sede Electrónica
