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748
resultados
Última actualización
18/07/2025 [07:03:00]
Resultados 700 a 725 de 748
Resumen de: US2025167271A1
An integrated energy system comprising a power plant including at least one nuclear reactor and electrical power generation system, the at least one nuclear reactor being configured to generate steam, and the electrical power generation system being configured to generate electricity, a desalination system configured to receive at least a portion of the electricity and steam to produce brine, an electrolysis process configured to process the brine into Sodium Hydroxide (NaOH), a Sodium Formate (HCOONa) production process configured to receive the Sodium Hydroxide (NaOH) to produce Sodium Formate (HCOONa), a Hydrogen (H2) extraction reactor configured to receive the Sodium Formate (HCOONa) and produce Hydrogen (H2), and a fuel cell configured to receive the Hydrogen (H2).
Resumen de: US2025163592A1
A wind-powered electrolysis arrangement is provided including a plurality of wind turbines of an offshore wind park; a distributed electrolyzer plant including a plurality of electrolyzers, wherein each electrolyzer is arranged on a wind turbine platform; a balance of plant of the distributed electrolyzer plant, installed on a main platform in the wind park; and a plurality of product pipelines, wherein each product pipeline is arranged to convey a number of products between the balance of plant and a distributed electrolyzer. A method of operating such a wind-powered electrolysis arrangement is also provided.
Resumen de: WO2025104195A1
The present invention relates to a process for the preparation of an electrode or a precursor thereof comprising sulfurizing a metal layer deposited on an electrode substrate, said metal layer comprising nickel, iron or a mixture of iron with nickel or cobalt. The invention also relates to the electrode or a precursor thereof obtainable by said process, the use thereof in electrocatalysis, for instance in alkaline water electrolysis, and to a device comprising said electrode.
Resumen de: WO2025103851A1
The invention relates to a method for operating an electrolysis plant (1) comprising at least one stack (2) which has a plurality of electrolysis cells and has an anode (3) and a cathode (4), wherein in normal operation of the electrolysis plant (1), water is supplied to the anode (3) via a water circuit (5) having an integrated pump (6), said water being split in the at least one stack (2) into hydrogen and oxygen by electrolysis, and wherein the hydrogen produced by electrolysis is discharged via a cathode outlet (9) of the stack (2) and a media line (7) connected to said cathode outlet. According to the invention, a reduced stack flow is maintained when the electrolysis plant (1) is shut down and, by means of the stack flow and a cell-side recombination catalyst (10), oxygen present on the anode side is recombined with hydrogen, which diffuses from the cathode side to the anode side, to form water. The invention further relates to an electrolysis plant (1) that is suitable for carrying out the method or can be operated according to the method.
Resumen de: WO2025104097A1
Process for the production of a fuel. In a conversion step carbon dioxide is reacted with hydrogen to form a liquid carrier. The carbon dioxide is for instance collected with a direct air capture system. The hydrogen can for example be generated using renewable sources. After storage and transport to a site of use, the liquid carrier is mixed with water to form a ready mix. During a break-up step, the liquid carrier is converted to a fuel while the temperature and the pressure of the ready mix are maintained at sub- or supercritical conditions.
Resumen de: WO2025104428A1
The invention provides a device for hydrogen production comprising a reaction chamber containing one or more catalysts disposed therein, a fuel gas inlet, and a hydrogen-rich gas outlet; a first reactant gas chamber having a first reactant gas inlet for conveying a first reactant gas and being in fluid communication with an exhaust; and a second reactant gas chamber having a second reactant gas inlet for conveying a second reactant gas; wherein the reaction chamber and the first reactant gas chamber share a first wall therebetween, the first wall comprising a thermally conductive substrate having a reaction chamber face and a first reactant gas chamber face, wherein the first reactant gas chamber face of the first wall has a reaction surface which is coated with a reactant gas decomposition catalyst; wherein the first reactant gas chamber further comprises a second wall opposite the first wall defining a volume therebetween, the second wall being shared between the first reactant gas chamber and the second reactant gas chamber; wherein the second wall comprises one or more apertures disposed in an aperture-containing area along a length and width of the second wall such that the second reactant gas chamber and the first reactant gas chamber are in fluid communication with one another, wherein the aperture-containing area has a first section, a second section, and a third section, the first section being a third of the aperture-containing area distal to the fuel gas inlet and
Resumen de: WO2025103570A1
A method of producing hydrogen by reacting silicon powder and water, comprises providing water in a reactor (120), providing loose silicon powder in the reactor (120), dispersing the silicon powder in the water in the reactor (120), and5 collecting hydrogen gas from the reactor (120). The silicon powder is provided as a plurality of silicon doses, each silicon dose comprising a predetermined amount of the silicon powder. The disclosure provides methods systems and energy carriers which are suitable in the context of production of hydrogen by reacting silicon powder and10 water. (Fig. 1) 15
Resumen de: AU2024227784A1
An apparatus and process for the activation of catalyst material utilized in ammonia cracking can include an initial use of hydrogen and heat to perform an initial stage of catalyst activation and a subsequent use of ammonia and heat to perform a subsequent state of catalyst activation. The subsequent use of ammonia can be configured so that different catalytic material at different plant elements are activated in a pre-selected sequence to provide activation of the catalytic material utilized in different plant elements. Some embodiments can be configured to avoid excess temperatures that can be detrimental to equipment that can be positioned upstream of a furnace in some embodiments while also avoiding sintering of the catalytic material.
Resumen de: US2025163594A1
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: US2025163593A1
A wind power plant is provided, including: one or more generator devices for generating electrical power from wind power; a plurality of hydrogen production units for producing hydrogen from the generated electrical power; a plurality of DC-DC converters each being electrically connected with the one or more generator devices and with a respective one of the plurality of hydrogen production units, and each DC-DC converter being configured for supplying power with a tunable output voltage to the respective hydrogen production unit; and a control device for controlling the power supplied by each DC-DC converter to the respective hydrogen production unit based on a current power output of the one or more generator devices. With the proposed wind turbine plant the supply of power to the plurality of hydrogen production units can be improved.
Resumen de: US2025163586A1
The invention relates to a method for operating an electrolysis plant having an electrolyser for generating hydrogen (H2) and oxygen (O2) as product gases, with water being supplied as starting material and being split at a proton-permeable membrane into hydrogen (H2) and oxygen (O2), a product gas stream being formed in a phase mixture comprising water (H2O) and a relevant product gas, and a product gas stream being supplied to a gas separator arranged downstream of the electrolyser, characterized in that the fluoride release of the membrane is determined on the basis of the operating time, the temporal progression of the fluoride concentration being ascertained, with a measure for the operation-induced degradation of the proton-permeable membrane being ascertained as the result of a release of fluoride. The invention furthermore relates to a corresponding electrolysis plant and to a measuring device for carrying out the method.
Resumen de: US2025163830A1
An energy storage system converts variable renewable electricity (VRE) to continuous heat at over 1000° C. Intermittent electrical energy heats a solid medium. Heat from the solid medium is delivered continuously on demand. An array of bricks incorporating internal radiation cavities is directly heated by thermal radiation. The cavities facilitate rapid, uniform heating via reradiation. Heat delivery via flowing gas establishes a thermocline which maintains high outlet temperature throughout discharge. Gas flows through structured pathways within the array, delivering heat which may be used for processes including calcination, hydrogen electrolysis, steam generation, and thermal power generation and cogeneration. Groups of thermal storage arrays may be controlled and operated at high temperatures without thermal runaway via deep-discharge sequencing. Forecast-based control enables continuous, year-round heat supply using current and advance information of weather and VRE availability. High-voltage DC power conversion and distribution circuitry improves the efficiency of VRE power transfer into the system.
Resumen de: US2025163587A1
An electrolyzer or unitized regenerative fuel cell has a flow field with at least one channel, wherein the cross-sectional area of the channel varies along at least a portion of the channel length. In some embodiments the channel width decreases along at least a portion of the length of the channel according to a natural exponential function. The use of this type of improved flow field channel can improve performance and efficiency of operation of the electrolyzer device.
Resumen de: AU2023405114A1
The invention relates to an electrolysis system (1) comprising an electrolyser (3) for producing hydrogen (H
Resumen de: US2025160931A1
A nasal turbinate hemostatic electrode includes a main body, where an end of the main body is fixedly connected to a tip; the tip includes a first electrode and a second electrode; side walls of the first electrode and the second electrode are rounded; the first electrode and the second electrode are spaced apart, and have a same surface area; an end of the main body adjacent to the tip is provided with an outlet hole; the outlet hole is connected to an inlet pipe; the outlet hole is configured to deliver an electrolyte to the tip; and the first electrode and the second electrode are configured to conduct a plasma current in the electrolyte. The nasal turbinate hemostatic electrode prevents the surgical electrode from causing a secondary injury to the patient during an operation process, further improving the use safety of the surgical electrode.
Resumen de: US2025162961A1
Systems and methods for producing methanol using syngas, which is a primarily a mixture of hydrogen and carbon monoxide, hydrogen and a carbon dioxide by-product that significantly reduce carbon dioxide emissions and/or sequestration. The syngas may be produced, for example, by an autothermal reactor, a steam methane reformer, or a gasifier. The hydrogen may be produced by an electrolyzer.
Resumen de: US2025162922A1
A the plant for producing glass and hydrogen includes: a glass melting furnace that melts a glass raw material with combustion heat of fuel to generate molten glass; an exhaust passage which extends from the glass melting furnace and through which exhaust gas generated in the glass melting furnace passes; a boiler that is provided in the exhaust passage and conducts heat exchange between the exhaust gas and water to generate steam; and an electrolyzer that electrolyzes the steam to generate hydrogen and oxygen.
Resumen de: WO2025105666A1
The present invention relates to an apparatus for manufacturing a water electrolysis membrane and method for manufacturing a water electrolysis membrane using same, and can provide a water electrolysis membrane having excellent physical properties, such as low sheet resistance, low hydrogen permeability, and excellent durability, compared to conventional commercial membranes.
Resumen de: WO2025105885A1
A membrane-electrode assembly includes a first catalyst electrode, a polymer electrolyte membrane covering a side surface and an upper surface of the first catalyst electrode, and a second catalyst electrode disposed on the polymer electrolyte membrane, in which at least a portion of a corner area in which the side surface and the upper surface of the first catalyst electrode are connected has a curved shape.
Resumen de: EP4556456A1
The present invention relates to a process for making ethylene glycols, selected from mono ethylene glycol, oligo ethylene glycols, poly ethylene glycols, and mixtures thereof, and alkanol ethoxylates, based on non-fossil energy, ethylene glycols, selected from mono ethylene glycol, oligo ethylene glycols, poly ethylene glycols, and mixtures thereof, and alkanol ethoxylates, having a low molar share of deuterium, the use of the molar share of deuterium in hydrogen and downstream compounds based on hydrogen for tracing the origin, especially the energetic origin, of the hydrogen and downstream compounds based on hydrogen, wherein the compounds are ethylene glycols, selected from mono ethylene glycol, oligo ethylene glycols, poly ethylene glycols, and mixtures thereof, and alkanol ethoxylates, a process for tracing the origin, especially the energetic origin, of hydrogen and downstream compounds based on hydrogen by determining the molar share of deuterium in hydrogen and said downstream compounds based on hydrogen, wherein the compounds are ethylene glycols, selected from mono ethylene glycol, oligo ethylene glycols, poly ethylene glycols, and mixtures thereof, and alkanol ethoxylates, coolants, comprising such mono ethylene glycol, brake fluids comprising such oligo ethylene glycols and/or such alkanol ethoxylates, cosmetics, shampoos, or nonionic or ionic detergents comprising such poly ethylene glycols and/or such alkanol ethoxylates, poly ethylene terephthalate, comprising
Resumen de: US2025153146A1
An ammonia oxidation catalyst and a catalyst system and method using the ammonia oxidation catalyst are provided. The catalyst comprises a metal oxide including titanium and chromium, wherein an energy band gap of the metal oxide measured by UV-Vis DRS is less than 1.4 eV. The catalyst system comprises an ammonia decomposition reactor and a catalyst unit which is located downstream from the ammonia decomposition reactor, and includes the above-described ammonia oxidation catalyst.
Resumen de: CN119546546A
The invention relates to a method for producing hydrogen by photodissociation of water, comprising at least one step of contacting an aqueous solution with oxidized nanodiamonds under solar, natural or artificial illumination (or light).
Resumen de: EP4556114A1
According to embodiments of the present disclosure, the ammonia oxidation catalyst includes a metal oxide including titanium and chromium, wherein an energy band gap of the metal oxide measured by UV-Vis DRS is less than 1.4 eV. The catalyst system according to embodiments of the present disclosure includes: an ammonia decomposition reactor; and a catalyst unit which is located in a downstream region of the ammonia decomposition reactor, and includes the above-described ammonia oxidation catalyst.
Resumen de: WO2024013139A1
The invention relates to a facility comprising: - a series of n electrolysers (4) designed to electrolyse water (1) and produce a hydrogen-aqueous solution mixture (5), the series having an overall capacity greater than 40 MW; - a gas-liquid separation device (8) configured to remove the aqueous solution contained in the mixture (5) produced by the series of n electrolysers (4) and produce a hydrogen stream (9). The gas-liquid separation device (8) comprises two flow conveying lines (21, 22) arranged one above the other; either or both of the two conveying lines being supplied with the mixture (5) and the two conveying lines being in fluid communication with one another via one or more segments (23) so that the hydrogen passes from the lower line (22) to the upper line (21) and/or the aqueous solution passes from the upper line to the (21) lower line (22).
Nº publicación: EP4555124A2 21/05/2025
Solicitante:
TOPSOE AS [DK]
Topsoe A/S
Resumen de: CN119497764A
The present invention relates to a method for operating a high temperature solid oxide electrolysis system suitable for converting a fuel stream into a product stream and a system for implementing the method. The method includes drying the moist purge gas and using the waste purge gas as a regeneration gas in the drying unit.
BOPI
Sede Electrónica
