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619
resultados
Última actualización
06/12/2025 [07:05:00]
Resultados 25 a 50 de 619
Resumen de: EP4657576A1
Problem To provide a catalyst-loaded carbon having a high initial activity and excellent durability. Solution A catalyst-loaded carbon including catalyst particles and a carbon support, the catalyst particles being loaded on the carbon support. The carbon support has a crystallite size of 3.5 nm or greater and 9 nm or less, a BET specific surface area of 300 m<sup>2</sup>/g or greater and 450 m<sup>2</sup>/g or less, and a pore size of 5.0 nm or greater and 20.0 nm or less. The catalyst particles are made of platinum or a platinum alloy, have a crystallite size of 2.5 nm or greater and 5.0 nm or less and a surface area of 40 m<sup>2</sup>/g or greater and 80 m<sup>2</sup>/g or less.
Resumen de: EP4656774A2
Provided is a water electrolysis stack capable of improving durability. The water electrolysis stack includes a cell stack that is formed by stacking a plurality of water electrolysis cells, an inter-cell space is formed between each adjacent ones of the water electrolysis cells in the cell stack, and gas flows into the inter-cell spaces in water electrolysis.
Resumen de: EP4656772A1
The present disclosure provides a water electrolysis membrane electrode, a method for preparing the water electrolysis membrane electrode, and a water electrolyzer applying the water electrolysis membrane electrode. The water electrolysis membrane electrode includes a cathode gas diffusion layer, a cathode catalytic layer, an anion exchange membrane, a hydrophobic anode catalytic layer, and an anode gas diffusion layer that are stacked in sequence. Raw materials for preparing the hydrophobic anode catalytic layer include an anode catalyst, a hydrophobic material, and an anode ionomer. A mass ratio of the anode catalyst, the hydrophobic material, and the anode ionomer is 10:1-3:1-3. A porosity of the hydrophobic anode catalytic layer is 10%-40%.
Resumen de: CN120344485A
The present invention relates to the field of hydrogen production from catalytic cracking of ammonia. The present invention comprises a primary cracking path comprising one or more catalyst-containing reaction tubes disposed within a roasting-type ammonia cracking reactor; and a parallel cleavage path comprising one or more secondary ammonia cleavage reactors arranged in succession and fluidly connected to each other. The invention can be used for producing hydrogen from ammonia.
Resumen de: CN120569516A
The invention provides an electrolytic cell system (10). The electrolytic cell system comprises a heat storage unit (14) and an electrolytic cell (16). The heat storage unit (14) comprises at least one heat source feed inlet. The electrolytic cell (16) comprises at least one electrolytic cell cell (20), a steam inlet and at least one exhaust gas outlet. The exhaust outlet is connected to the heat source feed inlet to heat the heat storage unit (14). The heat storage unit (14) is configured to use its stored heat to generate steam for one of feeding into the steam inlet at a time and generating electricity or both feeding into the steam inlet at the same time and generating electricity. The invention also provides a system comprising an intermittent or variable power source (12) and an electrolytic cell system (10) as defined above. The intermittent or variable power source (12) may be configured to simultaneously or separately power the electrolysis cell (16) and heat the heat storage unit (14) via a heating element.
Resumen de: EP4656771A1
A floating hydrogen production plant (2) comprises a plurality of interconnected floating platforms (6) which are movable with respect to each other. Each floating platform (6) comprises a floating member (7). The floating member (7) of at least one floating platform (6) has an internal chamber (8) for storing hydrogen. Each of the floating platforms (6) is provided with a plurality of hydrogen production devices (3) for producing hydrogen by electrolysis of water in the ambient air through solar energy. The hydrogen production devices (3) have respective hydrogen ports which are fluidly connectable to the internal chamber (8) of the floating member (7) of the at least one floating platform (6).
Resumen de: EP4656590A1
The present invention relates to a water-efficient method of storing hydrogen using a bicarbonate/formate-based aqueous reaction system, wherein the method comprises:(A) reducing aqueous bicarbonate using hydrogen to form formate and water,(B) at least partially separating water from the aqueous reaction system to provide water and concentrated salt components comprising formate, and(C) using the water provided in step (B) to form hydrogen for use in step (A) and/or to dissolve concentrated salt components comprising bicarbonate to provide aqueous bicarbonate for use in step (A).
Resumen de: AU2024222987A1
A system, comprising: an electrolyzer having a plurality of electrolysis cells arranged in a cell stack, wherein the electrolysis cells are electrically connected in series and grouped into two or more cell groups, each cell group having an electrical contact at either end; an electrical circuit having one or more switches, each switch coupled between the electrical contacts of a respective one of the cell groups and configured to selectively disconnect the cell group from the cell stack by electrically bypassing the cell group via a lower resistance path, to thereby vary the number of active electrolysis cells in the cell stack; and a controller configured to determine the number of active electrolysis cells based on a variable amount of direct current (DC) electrical energy supplied to the cell stack by an electrical energy source, and to control the one or more switches based on the determination.
Resumen de: WO2024231569A1
The present invention discloses an electrolyser cell frame assembly comprising a cell frame with an inner peripheral edge and an outer peripheral edge; a gasket with an inner peripheral edge and an outer peripheral edge; and a cell element with a peripheral edge compressed between the gasket and the cell frame. The gasket exhibits compressible characteristics whereas the cell frame exhibits rigid characteristics. The outer peripheral edge of the gasket extends outwards over the peripheral edge of the cell element in the direction of the outer peripheral edge of the cell frame such that the gasket overlaps a predefined part of the cell frame.
Resumen de: WO2024162842A1
A method of generating hydrogen and oxygen from a liquid feed stream through an integrated system of forward osmosis and electrolysis, wherein the method comprising the steps of feeding water into an electrolyte solution by means of forward osmosis and applying a voltage across the electrolyte solution to generate hydrogen and oxygen, characterized in that the electrolyte solution comprising an electrolyte, an ionic liquid and a solvent, wherein the electrolyte is used in an amount ranging between 1 wt% to 10 wt% of the electrolyte solution, wherein the ionic liquid is used in an amount ranging between 1 wt% to 5 wt% of the electrolyte solution and wherein the solvent is used in an amount ranging between 75 wt% to 99 wt% of the electrolyte solution.
Resumen de: WO2024184586A1
The invention relates to a method for producing hydrogen. The method comprises providing water and a gaseous substance, the gaseous substance comprises hydrogen atoms and carbon atoms, producing a mixture comprising the water and bubbles comprising the gaseous substance, decreasing diameter of the bubbles comprising the gaseous substance, and producing gaseous hydrogen by decomposing the gaseous substance in the bubbles having the decreased diameter. The invention further relates to apparatus for producing hydrogen gas.
Resumen de: CN118461035A
The invention provides an electrode catalyst and a preparation method and application thereof, the electrode catalyst comprises a nanosheet catalyst structure, a plurality of holes are formed in the surface of the nanosheet catalyst structure, and the size of the holes is smaller than 80 nm. According to the electrode catalyst and the preparation method and application thereof, electrode catalysts of different structures are obtained, the specific surface area of the electrode catalyst is increased, and active sites are increased, so that the catalytic efficiency is improved, and the production cost is reduced.
Resumen de: AU2024276790A1
The specification describes a process for preparing an oxygen evolution reaction catalyst, comprising the steps of: (i) combining iridium powder and a peroxide salt to produce a powder mixture; (ii) carrying out thermal treatment on the powder mixture; (iii) dissolving the product from (ii) in water to produce a solution; (iv) reducing the pH of the solution from (iii) to affect a precipitation and form a solid and a supernatant; (v) separating the solid from the supernatant; and (vi) drying the solid. An oxygen evolution catalyst obtainable by the process is also described.
Resumen de: US2025361626A1
An electrolysis device includes a water electrolysis stack configured to electrolyze water, a gas-liquid separator configured to separate hydrogen gas from water discharged from the water electrolysis stack, and a hydrogen compression stack configured to compress the hydrogen gas separated by the gas-liquid separator. The gas-liquid separator includes a storage tank configured to store water, and a maximum storage water level that is a maximum value of a water level that can be allowed in the storage tank is predetermined, and the hydrogen compression stack is located above the maximum storage water level.
Resumen de: NZ799208A
The method and plant (1) for conversing solid recovered fuel pellets (117) made from municipal solid waste (103) allow the transformation of the municipal solid waste (103) into hydrogen with a high yield instead of landfilling or incinerating the municipal solid waste (103). The hydrogen rich product gas stream (601) can be used as feedstock for chemical reactions or for storing energy in a releasable manner.
Resumen de: WO2024115474A1
The aim of the invention is to transport energy produced in an environmentally friendly manner by means of an offshore wind turbine to land in a simple and reliable manner. This is achieved by a method (100) for transporting hydrogen from a floating wind turbine (10) to a water vehicle (11), wherein hydrogen is provided in a storage tank (31) of a floating wind turbine (10), and a water vehicle (11) with a transport tank (36) is positioned by the floating wind turbine (10). The hydrogen is transported from the storage tank (31) to the transport tank (36) using a line (35) which is designed to transport the hydrogen.
Resumen de: CN120225638A
The invention relates to a device/method for capturing/converting CO2. The present invention relates to a process for producing CO and water, comprising/using a CO2 capture unit (2) that produces a CO2-rich effluent (3), a water electrolysis unit (5) that converts water (4) into oxygen (6) and hydrogen (7), an RWGS unit (8) that treats the CO2-rich effluent with hydrogen (7) and produces an RWGS gas (9) enriched in CO and water, an FT unit (13) that converts the RWGS gas and produces an FT effluent (14), a first separation unit (15) that treats the FT effluent and produces a hydrocarbon effluent (17) and a gas effluent (33), a second separation unit (34) separating the first gas (33) producing a CO2-lean gas (18) and a CO2-rich gas (35) fed to the RWGS unit, a hydrogen unit (20) treating the hydrocarbon effluent to produce a hydrocarbon fraction (21).
Resumen de: CN120225461A
The process for cracking ammonia is improved by using heat generated in a compression unit for compressing PSA off-gas recycled to a PSA unit to preheat liquid ammonia prior to gasification and cracking. Heat is transferred using a heat transfer fluid, such as an aqueous solution comprising from about 50% to about 60% by weight of a diol, such as ethylene glycol or propylene glycol.
Resumen de: JP2025173908A
【課題】飛行体内の酸素濃度を制御することができる飛行体用気体供給システムを得る。【解決手段】飛行体用気体供給システム１０は、飛行機１２内に配置されて空気に含まれる水分を吸着しかつ光が照射されることで水を分解して酸素を発生させる光触媒作用を有する多孔性配位高分子を含んで構成された吸着体１４と、飛行機１２内に配置されて飛行機１２内の酸素濃度を測定可能な酸素濃度センサ１６と、飛行機１２内に配置されて吸着体１４に光を照射可能とされると共に光の光量を調整可能とされた照明装置１８とを備えている。【選択図】図１
Resumen de: US2025354277A1
A water electrolysis cell according to an embodiment includes: an anode electrode including an anode catalyst layer in which anode catalyst sheets are stacked via a gap, each anode catalyst sheet containing iridium oxide and being in the form of a nanosheet; a cathode electrode including a cathode catalyst layer in which cathode catalyst sheets are stacked via a gap, each cathode catalyst sheet containing platinum and being in the form of a nanosheet; and an electrolyte membrane containing a hydrocarbon-based material, placed between the anode electrode and the cathode electrode.
Resumen de: NZ788420A
A process for preparing synthetic hydrocarbons from a biomass feedstock is provided. The process involves electrolyzing water in an electrolyzer to produce oxygen and hydrogen, using the generated oxygen to gasify a biomass feedstock under partial oxidation reaction conditions to generate a hydrogen lean syngas, adding at least a portion of the generated hydrogen to the hydrogen lean syngas to formulate hydrogen rich syngas, which is reacted a Fischer Tropsch (FT) reactor to produce the synthetic hydrocarbons and water. At least a portion of the water produced in the FT reaction is recycled for use in the electrolysis step, and optionally using heat generated from the FT reaction to dry the biomass feedstock.
Resumen de: CN120322494A
The present invention relates to a basic anion exchange membrane precursor (pAAEM) comprising a blend of at least one first polymer (P1) comprising recurring units derived from acrylonitrile and at least one second polymer (P2) comprising recurring units derived from vinyl lactam; and to an alkaline anion exchange membrane (AAEM) obtained therefrom.
Resumen de: WO2025244527A1
The invention is directed to a method and electrolytic cell for electrolysis of an alkaline aqueous solution. The method comprises the steps of: - providing an electrolyte (1) chamber comprising an alkaline aqueous solution; - providing a first electrode stack and a second electrode stack, both of which are in fluid contact with the alkaline aqueous solution in the electrolyte chamber and comprise a permeable electrode layer comprising catalytically active electrode material (6, 7), and a permeable non-catalytic layer (8) placed on a first face of the electrode layer facing the electrolyte chamber; - applying a potential difference between the electrode layer of the first electrode stack and the electrode layer of the second electrode stack; - flowing the alkaline aqueous solution from the electrolyte chamber through the first and second electrode stack, thereby causing an oxidation reaction at the electrode layer of one of the electrode stacks and causing a reduction reaction at the electrode layer of the other electrode stack; wherein each non-catalytic layer has a permeability of 1.0 × 10-7 m2 or lower, and/or wherein the flow velocity through the first and second electrode stack is 1.0 × 10-4 m/s or lower.
Resumen de: US2025361467A1
Disclosed is a process and system for generating hydrogen from carbon dioxide. The process and system for generating a hydrogen gas stream from a carbon dioxide gas stream comprises converting a first waste carbon dioxide gas stream to an organic feedstock using an algal source in a photosynthesis step. The organic feedstock is then converted using an organism to the hydrogen gas stream and gaseous by-products in a biodecomposition step. The generated hydrogen gas may then be collected.
Nº publicación: DE102024204777A1 27/11/2025
Solicitante:
BOSCH GMBH ROBERT [DE]
Robert Bosch Gesellschaft mit beschr\u00E4nkter Haftung
Resumen de: DE102024204777A1
Elektrochemisches System mit einem elektrochemischen Stack (1), wobei der Stack (1) einen Einlass (201; 301) aufweist, über den eine Flüssigkeit eingeleitet werden kann, und einen Auslass (202; 302), über den eine Flüssigkeit ausgeleitet werden kann. Der Einlass (201; 301) ist mit einem ersten Flüssigkeitsbehälter (25) verbindbar und der Auslass (202; 302) mit einem zweiten Flüssigkeitsbehälter (32).
BOPI
Sede Electrónica
