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896
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Última actualización
11/07/2025 [08:01:00]
Resultados 775 a 800 de 896
Resumen de: WO2025099844A1
An electrolytic cell system (1) comprises: a plurality of cell stacks (11); a control device (40, 40a); and a power source (30). The plurality of cell stacks (11) generate a generated gas containing hydrogen by electrolyzing a raw material gas containing water. The plurality of cell stacks (11) are electrically connected in parallel. The control device (40, 40a) controls the operation of the plurality of cell stacks (11). The plurality of cell stacks (11) include two or more cell stacks (11) in which the steady power required for steady operation near thermal neutral voltage is mutually different. The control device (40, 40a) suspends the operation of at least one cell stack (11), of the two or more cell stacks (11), in a manner approximate to the amount of decrease in the power supplied from the power source (30).
Resumen de: WO2025100112A1
A production method for hydrogen according to the present invention includes a step for electrolyzing an electrolytic solution that has been heated to a temperature between a lower limit temperature that is at least 100°C and at least the melting point and an upper limit temperature that is less than the boiling point, the electrolytic solution being composed of sodium hydroxide, potassium hydroxide, and water and satisfying expressions (1)-(3). (1) 4≤x≤14. (2) 51≤y≤71. (3) 15≤z≤45.
Resumen de: WO2025099868A1
An electrolysis cell system (1) comprises an electrolysis cell (10), a first supply path (L1), a second supply path (L2), a first pressure adjustment unit (60), a second pressure adjustment unit (80), and a controller (130). The electrolysis cell (10) has a hydrogen electrode chamber (12) and an oxygen electrode chamber (13). The first supply path (L1) supplies a raw material gas containing water vapor to the hydrogen electrode chamber (12). The second supply path (L2) supplies compressed air to the oxygen electrode chamber (13). The first pressure adjustment unit (60) is provided in the first supply path (L1). The second pressure adjustment unit (80) is provided in the second supply path (L2). The controller (130) controls the first pressure adjustment unit (60) and the second pressure adjustment unit (80) to adjust a first pressure in the hydrogen electrode chamber (12) and a second pressure in the oxygen electrode chamber (13).
Resumen de: WO2025098180A1
A preparation method for a cobalt-iridium nanocrystal comprises: mixing an iridium salt, an organic ligand, a reducing solvent and a centrifugal liquid to form a first precursor, and maintaining the temperature of the first precursor; and mixing the first precursor with a cobalt salt in a protective atmosphere to form a second precursor, and maintaining the temperature to carry out a reaction to obtain the cobalt-iridium nanocrystal. According to the preparation method, a centrifugal liquid is used as a raw material, improving the yield, crystallinity and electrocatalytic activity of the cobalt-iridium nanocrystal, and reducing the synthesis cost. The present invention also relates to a cobalt-iridium nanocrystal and a water electrolysis catalyst.
Resumen de: WO2025098254A1
Provided in the present invention are an anode for a PEM water electrolytic cell and a preparation method for the anode. The anode comprises a stainless steel base body and a layered oxide structure generated on the surface of the stainless steel base body in situ, wherein the layered oxide structure comprises a manganese-deficient inner layer and a manganese-rich outer layer, the manganese-rich outer layer comprising a crystal manganese oxide secondary outer layer and an amorphous iron-containing manganese oxide outermost layer. The layered oxide structure of the surface of the anode of the present invention can maintain long-time catalytic activity for electrolysis of water and stability under acidic conditions, and an appropriate surface structural component selection solves the problems of corrosion and stability of self-catalysis and non-noble metal electrodes in an acidic environment. The anode provided in the present invention significantly reduces the present cost of hydrogen production based on a noble metal catalyst, and is expected to solve high-cost problem of PEM large-scale electrolysis hydrogen production.
Resumen de: WO2025097621A1
A hydrogen refueling station, a hydrogen energy automobile, and a hydrogen refueling system. The hydrogen refueling system comprises a decomposition device (10), a transfer device (20), a storage device (30) and a recombination device (40); the decomposition device is configured to decompose water into hydrogen and oxygen; the transfer device is configured to transport hydrogen into the storage device and discharge oxygen into the environment; the storage device is configured to store the hydrogen transported by the transfer device; the recombination device is configured to receive the hydrogen provided by the storage device and the oxygen in the environment, and the hydrogen and the oxygen react in the recombination device to generate a current. When the hydrogen refueling system of the present invention is used for hydrogen refueling of the automobile, a way to perform real-time hydrogen production and hydrogen refueling is used, such that it is not necessary to build a large hydrogen storage tank, which saves the long-distance transportation of hydrogen and reduces the construction cost and operation cost of a hydrogenation system.
Resumen de: WO2025097294A1
Disclosed in the present application are an apparatus for producing hydrogen from alkaline water and a system for producing hydrogen. The apparatus for producing hydrogen comprises an alkaline-water electrolytic cell, wherein a plurality of electrode plates are inserted into the alkaline-water electrolytic cell, and the plurality of electrode plates are sequentially arranged at set intervals; when the electrode plates are powered on, the plurality of electrode plates are arranged in a manner that an anode and a cathode face each other; and at least some of the plurality of electrode plates are each provided with an elastic assembly. In the present application, an elastic assembly is provided in an electrode plate to push the anode to the cathode as much as possible, thereby reducing the voltage of a unit cell; in addition, during process control, a gas-phase pressure on the anode side is maintained higher than that on the cathode side, such that the purity of a gas generated by means of an electrolytic reaction is reduced, and the safety of the electrolytic cell and process for producing hydrogen from alkaline water is improved.
Resumen de: WO2025097201A1
The present invention relates to a method of producing an electrocatalyst, an electrocatalyst obtained by the method, an electrode coated with the electrocatalyst, an electrolyser comprising the electrode and a method of producing hydrogen using the electrolyser In particular, the present invention relates to a bimetallic electrocatalyst for use in hydrogen evolution reaction (HER).
Resumen de: US2025154016A1
The present invention relates to a plant for the synthesis of ammonia, wherein the plant includes at least one reformer for converting a hydrocarbon into hydrogen, wherein the plant includes a converter for converting hydrogen and nitrogen into ammonia, wherein the converter is integrated into a recirculation loop, wherein a first carbon dioxide separator is arranged between the reformer and the recirculation loop, wherein the recirculation loop includes an ammonia separator.
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: US2025152354A1
A tubular system comprising a catheter is configured to deliver an implant into the heart. The implant comprises a coupling head and a tissue-engaging element that comprises a first electrode. A driver is configured to, via engagement with the coupling head, (i) advance the implant out of a distal end of the tubular system and place the tissue-engaging element in contact with tissue of the heart, and (ii) secure the implant within the heart by fastening the tissue-engaging element to the tissue. A control unit, electrically couplable to (i) the first electrode via the driver, and (ii) a second electrode contacting the subject, is configured, to (i) receive an electrical signal from the electrodes, and (ii) based on the electrical signal, display information indicative of contact between the first electrode and the tissue. Other embodiments are also described.
Resumen de: US2025155119A1
Combustion process, comprising: a) a production step of a binary fuel gas consisting of hydrogen and at least of between 5 and 50 vol % of nitrogen, preferably between 15 and 35 vol % nitrogen, and b) a combustion step using as only fuel gas the binary fuel gas at a combustion chamber able to receive as fuel gas the binary fuel gas, wherein the combustion chamber is selected from the group of furnaces and fired process heaters.
Resumen de: US2025154670A1
An electrolysis cell comprises two elements, each comprising a central portion defining an anode chamber and a cathode chamber, respectively, and a circumferential flange portion, a sheet-like separator with a circumferential edge, the separator being disposed between the two elements and separating the anode and cathode chambers, and a sealing arrangement comprising at least a first and a second gasket, wherein the sealing arrangement is disposed in a gap between the flange portions, wherein the first gasket is an inner gasket positioned in a portion of the gap adjacent to the chambers and the second gasket is an outer gasket positioned in a portion of the gap distant to the chambers, wherein the gaskets are spaced apart from each other in the gap at an interval, and wherein the circumferential edge of the separator is located radially between a midpoint of the first gasket and a midpoint of the second gasket.
Resumen de: US2025158098A1
The present invention relates to a process for the preparation of a membrane (M) containing a sulfonated polyarylenesulfone polymer (sP), the membrane (M) obtained by the inventive process, a fuel cell, an electrodialysis cell and an electrolytic cell comprising the membrane (M), the use of the membrane (M) in an electrolytic cell, an electrodialysis cell or a fuel cell and a process for the preparation of electrical energy and/or hydrogen.
Resumen de: US2025154665A1
The present invention provides an oxyhydrogen preparation device capable of adjusting hydrogen content and a using method thereof. The device comprises a housing for accommodating an oxygen production device, a hydrogen production device, a control module (14), and a power supply module (19), wherein the power supply module (19) is configured to supply power to each said device; the oxygen production device is configured to separate oxygen from air and store the oxygen for backup supply; the hydrogen production device is configured to produce hydrogen or oxyhydrogen for backup supply based on the principle of water electrolysis; the control module (14) is configured to control and adjust the oxygen flow, detect the oxygen concentration, and adjust the flow of the oxyhydrogen and the hydrogen content to a preset range; and the oxygen produced by the oxygen production device converges with the hydrogen or the oxyhydrogen produced by the hydrogen production to a gas outlet (17) of the oxyhydrogen gas preparation device through a pipeline, and then discharged after humidification or discharged directly. Further disclosed is a using method of the device. The advantages such as long service life, adjustable hydrogen content, adjustable oxyhydrogen flow are achieved.
Resumen de: US2025154674A1
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: US2025154882A1
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: US2025154002A1
A method for producing hydrogen, includes the steps of: providing a base material including magnesium; providing a carrier fluid, in particular water; providing a pH-lowering liquid; bringing together the base material and the carrier fluid in a suspension container to form a suspension; supplying the pH-lowering liquid to a reactor; continuously supplying the suspension to the reactor; discharging the hydrogen produced in the reactor in a reaction of the base material and the pH-lowering liquid from the reactor. Further, a corresponding device produces hydrogen.
Resumen de: DE102023211251A1
Die Erfindung betrifft ein Verfahren zum Betreiben einer Elektrolyseanlage (1), umfassend mindestens einen Stack (2) mit einer Anode (2.1) und einer Kathode (2.2), wobei im Normalbetrieb- der Anode (2.1) über eine Wasserleitung (3) Wasser, insbesondere deionisiertes Wasser, aus einer Wasseraufbereitung (4) zugeführt wird,- aus der Anode (2.1) über eine erste Auslassleitung (5) im Stack (2) produzierter Sauerstoff abgeführt wird und- aus der Kathode (2.2) über mindestens eine weitere Auslassleitung (6, 7) im Stack (2) produzierter Wasserstoff aus der Kathode (2.2) abgeführt wird. Erfindungsgemäß wird bzw. werden im stromlosen Zustand der Elektrolyseanlage (1), insbesondere bei einem Not-Aus, die Anode (2.1) und/oder die Kathode (2.2) gespült, wobei zum Spülen Wasser, insbesondere deionisiertes Wasser, verwendet wird, das in mindestens einem Wasserreservoir (8) vorgehalten und über mindestens eine Spülleitung (9) mit integriertem Ventil (10), das stromlos die Spülleitung (9) mit der Wasserleitung (3) oder einer von zwei kathodenseitigen Auslassleitungen (6, 7) verbindet, der Anode (2.1) und/oder der Kathode (2.2) zugeführt wird.Die Erfindung betrifft ferner eine Elektrolyseanlage (1), die zur Durchführung des Verfahrens geeignet bzw. nach dem Verfahren betreibbar ist.
Resumen de: DE102023211184A1
Elektrolysemodul (1) mit einem Elektrolysestack (2), der eine Vielzahl elektrolytischer Zellen (3) zur elektrochemischen Spaltung von Wasser in Wasserstoff und Sauerstoff, und mit einem Leistungselektronikmodul (5) zur Versorgung des Elektrolysestacks (2) mit einer elektrischen Spannung, wobei das Leistungselektronikmodul (5) und der Elektrolysestack (2) auf einem gemeinsamen Trägerrahmen (10) montiert sind. Im Trägerrahmen (10) ist zumindest ein Hohlrohr (20) ausgebildet zur Durchleitung von Flüssigkeiten, Strom und/oder elektrischen Signalen zur Versorgung des Leistungselektronikmoduls (5) und/oder des Elektrolysestacks (2).
Resumen de: US2025158099A1
Method of manufacturing of a membrane with surface fiber structure, in particular for use in an electrolyzer or fuel cell, by inserting the polymer membrane into the vacuum chamber equipped with a magnetron sputtering system with a cerium oxide target in which an atmosphere of O2 and inert gas is formed and igniting the plasma which leads to simultaneous plasma etching of the membrane surface and deposition of cerium oxide onto the surface of etched membrane resulting in formation of fibers. The membrane is made of polymer and on at least one of its sides features porous surface made of fibers, the cross-sectional dimensions of which are lower than their length and which are integral and inseparable part of membrane body.
Resumen de: DE102023211334A1
Die Erfindung betrifft ein Verfahren zum Betreiben einer Elektrolyseanlage (1), umfassend mindestens einen eine Vielzahl von Elektrolysezellen aufweisenden Stack (2) mit einer Anode (3) und einer Kathode (4), wobei im Normalbetrieb der Elektrolyseanlage (1) der Anode (3) über einen Wasserkreislauf (5) mit integrierter Pumpe (6) Wasser zugeführt wird, das in dem mindestens einen Stack (2) durch Elektrolyse in Wasserstoff und Sauerstoff aufgespalten wird, und wobei der durch Elektrolyse erzeugte Wasserstoff über einen Kathodenauslass (9) des Stacks (2) und eine hieran angeschlossene Medienleitung (7) abgeführt wird. Erfindungsgemäß wird beim Abschalten der Elektrolyseanlage (1) ein reduzierter Stackstrom aufrechterhalten und mit Hilfe des Stackstroms sowie eines zellseitigen Rekombinationskatalysators (10) wird anodenseitig vorhandener Sauerstoff mit Wasserstoff, der von der Kathodenseite auf die Anodenseite diffundiert, zu Wasser rekombiniert.Die Erfindung betrifft ferner eine Elektrolyseanlage (1), die zur Durchführung des Verfahrens geeignet bzw. nach dem Verfahren betreibbar ist.
Resumen de: WO2025101433A1
A syngas generation system includes a molten carbonate fuel cell (MCFC) including a MCFC cathode configured to receive a MCFC cathode input stream including a flue gas stream and a MCFC anode configured to output a MCFC anode exhaust stream including carbon dioxide and steam. The syngas generation system further includes a solid oxide electrolysis cell (SOEC) including an SOEC cathode and an SOEC anode. The SOEC is configured to receive, at the SOEC cathode, an SOEC cathode input stream, the SOEC cathode input stream including at least a portion of the MCFC anode exhaust stream, co-electrolyze carbon dioxide and steam in the SOEC cathode input stream, and output, from the SOEC cathode, an SOEC cathode exhaust stream including carbon monoxide and hydrogen gas.
Resumen de: WO2025099113A1
The invention relates to an electrolysis system comprising an electrolyzer (1) that has an inlet (2) through which a liquid can be introduced and an outlet (3) through which the liquid or gas can be discharged. The outlet (3) is connected, via an outlet line (4), to a gas-liquid separator (5) in which the gas exiting the electrolyzer (1) is separated from the exiting liquid. The inlet (2) can be connected to a pressure tank (10) in which liquid is kept available under a flushing pressure.
Nº publicación: WO2025099110A1 15/05/2025
Solicitante:
ROBERT BOSCH GMBH [DE]
ROBERT BOSCH GMBH
Resumen de: WO2025099110A1
The invention relates to an electrolysis system comprising an electrochemical stack (1) that has an inlet (8) through which water can be introduced and comprising an outlet (9) through which water or gas can be discharged out of the stack (1). The outlet (9) is connected, via a line (10), to a gas-water separator (11) in which the gas exiting the stack (1) is separated from the exiting water. The gas-water separator (11) is connected to a water tank (20) via a discharge line (13) in order to store the separated water, wherein the water tank (20) is connected to the inlet (8) of the stack (1) via a flushing line (22).
BOPI
Sede Electrónica
