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445
resultados
Última actualización
17/08/2025 [07:11:00]
Resultados 375 a 400 de 445
Resumen de: CN120175441A
The invention provides a coal gasification pure oxygen combustion power generation system, which relates to the technical field of oxygen-enriched combustion supercritical carbon dioxide power cycle power generation, and comprises a gasification furnace, a steam generator, a hydrogen separator, a combustion chamber and a turbine, a synthesis gas outlet of the gasification furnace is communicated with the combustion chamber through a high-temperature pipeline of the high-temperature synthesis gas regenerator, a high-temperature pipeline of the low-temperature synthesis gas regenerator, the first cooler and the hydrogen separator in sequence; an exhaust port of the turbine is communicated with the second cooler through a high-temperature pipeline of the high-temperature flue gas regenerator and a high-temperature pipeline of the low-temperature flue gas regenerator in sequence, and an exhaust port of the second cooler is communicated with a low-temperature pipeline exhaust port of the low-temperature flue gas regenerator and an exhaust port of the gasification furnace. A low-temperature pipeline exhaust port of the high-temperature synthesis gas regenerator is communicated with the gasification furnace and the combustion chamber; water vapor and carbon dioxide are introduced into the gasification furnace to participate in gasification, flexibility of water gasification and high efficiency of carbon dioxide gasification are both considered, and heat in the system is fully utiliz
Resumen de: CN120174420A
The invention provides a protection control method of an electrolytic power supply, an upper computer and an electrolytic hydrogen production system. The method comprises the following steps: acquiring an operating state of an electrolytic hydrogen production device and/or operating parameters of the electrolytic power supply; determining a protection strategy according to the operation state of the electrolytic hydrogen production device and/or the operation parameters of the electrolytic power supply; and controlling the electrolysis power supply control device to execute a protection action corresponding to the protection strategy. By means of the protection mode, the electrolytic power source can be cut in or cut out in a targeted mode according to the real-time conditions of the electrolytic hydrogen production device and the electrolytic power source in the operation process, protection of core components such as an electrolytic cell in the electrolytic hydrogen production device is achieved, and the safety and reliability of operation of the electrolytic hydrogen production system are improved.
Resumen de: CN120174392A
The invention relates to the technical field of hydrogen production, in particular to an all-weather hydrogen production device and a hydrogen production method.The hydrogen production device comprises a heat collection module, a heat storage and thermoelectric conversion module and a hydrogen production module; the heat storage and thermoelectric conversion module comprises a first heat storage assembly and a second heat storage assembly which have a temperature difference, and is used for providing electric energy for the water electrolysis hydrogen production module through a thermoelectric conversion effect; the hydrogen production module comprises a photocatalytic hydrogen production module and a water electrolysis hydrogen production module, a cathode in the photocatalytic hydrogen production module and a cathode of the water electrolysis hydrogen production module are the same cathode, and an anode in the photocatalytic hydrogen production module and an anode of the water electrolysis hydrogen production module are integrated in the same anode; the anode comprises a conductive electrode, and a photocatalytic hydrogen production anode catalyst and a water electrolysis hydrogen production anode catalyst which are respectively attached to two sides of the conductive electrode. According to the device, photocatalytic hydrogen production and water electrolysis hydrogen production are combined in the same set of device, the equipment integration degree is high, a plurality o
Resumen de: KR20250090996A
본 발명은 애노드 다공막 제조방법과 관련된다. 본 발명은 실시예로, 금속소재를 막대 형태로 제조하는 제1단계, 상기 제1단계에서 제조된 막대 형태의 금속소재와 상기 금속소재와 동일한 금속의 분말소재를 혼합하고 용매를 투입하여 슬러리를 제조하는 제2단계, 상기 제2단계에서 제조된 슬러리를 테이프캐스팅하여 그린시트를 제조하는 제3단계, 상기 제3단계에서 제조된 그린시트를 탈지하고 소결하여 소결된 다공막을 얻는 제4단계 및 상기 제4단계에서 얻어진 소결된 다공막을 압연처리하여 표면 조도를 감소시키도록 조절하는 제5단계를 포함하는 애노드 다공막 제조방법을 제시한다.
Resumen de: WO2025124791A1
The invention relates to an offshore electrolysis system (100) comprising a wind turbine (1) having a tower (19), which is anchored to the seabed, and having an electrolysis plant (5), wherein the electrolysis plant (5) is connected to the wind turbine (1) by a supply line (11), and wherein the electrolysis plant (5) has an electrolyser (13) which is arranged in a container (9), wherein the container (9) is arranged below sea level (25). The invention also relates to a method for operating a corresponding offshore electrolysis system. In this method, water is broken down into hydrogen (H2) and oxygen by an electrolyser (13) of the electrolysis plant (5), which electrolyser is located below sea level (25), wherein the hydrogen (H2) produced is transported away via a product gas line (7).
Resumen de: WO2025124674A1
Alkaline electrolyser and a method for its operation including gas purging An alkaline electrolyser comprising a stack (17) of electrolytic cells (1) is used for producing hydrogen gas (8). Purified hydrogen gas and purified oxygen gas is used for purging the corresponding cathode and anode compartments (5, 6) for preventing buildup of dangerous gas mixtures by gas crossover during stop, before starting, or when running production low.
Resumen de: WO2025129081A1
A method, comprising electrolyzing a CO2 input and water so as to form a first product comprising CO and H2, the electrolyzing optionally being performed over a Pd/C catalyst or a catalyst that comprises any one or more of gold, silver, iron, cobalt, nickel, copper, or zinc; and thermochemically processing the first product so as to give rise to a second product that comprises carbon nanofibers or nanotubes. A system, comprising: a first reaction zone, the first reaction zone configured to receive CO2 input and water, and the first reaction zone configured for electrolysis of the CO2 input and water to evolve a product that comprises CO; a second reaction zone, the second reaction zone configured to receive a product from the first reaction zone, the second reaction zone configured to support at least one of the Boudouard reaction (R1) and CO + H2 → C(s) + H2O (R2).
Resumen de: WO2025127896A1
According to exemplary embodiments of the present invention, a hydrogen production system is provided. The hydrogen production system comprises: a dry quenching facility configured to cool coke using a cooling gas; a boiler configured to receive the cooling gas from the dry quenching facility and recover heat energy of the cooling gas to produce first steam and electric power; and a water electrolysis facility configured to receive the electric power from the boiler and electrolyze second steam to produce hydrogen. According to other exemplary embodiments of the present invention, a method for producing hydrogen is provided.
Resumen de: WO2025127894A1
The present invention relates to a system for reducing fuel consumption and recovering CO2, comprising: a water electrolysis facility system for producing hydrogen and oxygen from water or steam; a combustion facility for combusting fuel by using the produced oxygen; and a CO2 recovery facility for recovering CO2 from an exhaust gas discharged from the combustion facility.
Resumen de: US2025198012A1
The invention pertains to an electrolyser for producing hydrogen (H2) and oxygen (O2) as product gases. It includes an electrolysis module and a gas separator for phase separation of the product gas from water. The electrolysis module is connected to the gas separator via a product flow line, and a return line with a circulation pump connects the gas separator back to the electrolysis module for separated water. A bypass line with a valve allows water to be supplied from the gas separator to the electrolysis module during standstill. The invention also covers a method for operating the electrolyser, where in standstill mode, the electrolysis current is stopped, and a safety deactivation is initiated. Water is automatically driven into the electrolysis module due to a hydrostatic differential pressure (Δp) from a predefined height difference (Δh), flooding the electrolysis module.
Resumen de: WO2025127730A1
According to exemplary embodiments of the present invention, a support is provided. The support is a support of a catalyst for ammonia decomposition, and the amount of acid sites of the support, as measured by NH3-temperature programmed desorption (NH3-TPD), is 0.006-0.010 mmol/g. Also, according to other exemplary embodiments of the present invention, provided are a method for manufacturing the support, and a catalyst for ammonia decomposition, comprising the support.
Resumen de: WO2025127755A1
A hydrogen production apparatus of the present invention comprises: an ammonia decomposition reactor for decomposing ammonia to discharge a mixed gas including hydrogen, nitrogen, and unreacted ammonia; an ammonia remover for receiving the mixed gas, adsorbing and removing the unreacted ammonia included in the mixed gas, and discharging a first product gas including hydrogen and nitrogen and a first tail gas; and a nitrogen remover for receiving the first product gas, removing nitrogen included in the first product gas, and discharging a second product gas including hydrogen and a second tail gas, wherein the second product gas discharged from the nitrogen remover is resupplied to the nitrogen remover as a purge gas and a pressurizing gas. According to the hydrogen production apparatus of the present invention, high-purity hydrogen can be continuously produced in large quantities.
Resumen de: WO2025127536A1
Disclosed are a catalyst electrode for ammonia electrolysis and a method for effectively producing same, wherein the ratio of oxides and hydroxides in the catalyst electrode for ammonia water electrolysis is improved by introducing a heat treatment step for heat treatment within a specific temperature range after an electroplating step, and as a result, poisoning by nitrogen oxides is suppressed such that durability is improved, and excellent ammonia water electrolysis performance is achieved.
Resumen de: WO2025127526A1
According to exemplary embodiments of the present invention, a hydrogen production system is provided. The present invention comprises: a hydrogen generation unit configured to receive reduced iron from a reduced iron generation unit configured to generate reduced iron by reducing powdered iron ore in a reducing gas atmosphere, and to generate hydrogen from ammonia by bringing the reduced iron into contact with the ammonia; and a regeneration unit configured to receive the reduced iron from the hydrogen generation unit and to regenerate the reduced iron by reducing the reduced iron in a hydrogen gas atmosphere. According to other exemplary embodiments of the present invention, a method for producing hydrogen is provided.
Resumen de: WO2025128530A1
A method for producing hydrogen using a feed stream comprising ammonia is provided. The method can include the steps of: cracking a gaseous ammonia feed in an ammonia cracker to produce a cracked gas stream comprising hydrogen, nitrogen, and unreacted ammonia; cooling the cracked gas stream to a first temperature that is sufficient for condensing at least a portion of the unreacted ammonia to form a dual phase fluid; separating the dual phase fluid in an ammonia separator to produce a liquid ammonia stream and a top gas stream comprised predominately of hydrogen and nitrogen; removing additional ammonia from the top gas stream using a front-end purification system to form a purified top gas stream; further cooling the purified top gas stream to a second temperature that is sufficient for condensing at least a portion of the nitrogen within the top gas stream to form a dual-phase stream, wherein the second temperature is colder than the first temperature; introducing the dual-phase stream to a cryogenic hydrogen separator under conditions effective for separating hydrogen and nitrogen, thereby creating a liquid nitrogen stream and a hydrogen top gas; warming and vaporizing the liquid nitrogen stream to produce a gaseous nitrogen stream; warming the hydrogen top gas to produce a gaseous hydrogen product stream: and recycling the liquid ammonia stream produced by the ammonia separator to a point upstream the ammonia cracker.
Resumen de: WO2025126055A1
A system is described for the production of hydrogen and thermal power through a spontaneous electrochemical oxidation-reduction reaction, formed by at least one reactor (1) composed by a loading line (2) that introduces a reacting material into a reaction basin (6); at least one discharge body (12) for the hydroxide produced during the reaction, wherein the pH is transformed into a desired value by the introduction of an acidic solution through a loading line (13); at least one loading line (3) of water that is supplied into the reaction basin (6); at least one cathode body (5) made of porous material containing gaseous oxygen; at least one loading line (4) that allows the oxygen to be replenished at the cathode body (5); at least one porous material filter (7) for separating the gaseous hydrogen from solid residues produced during the reaction; and at least one discharge line (8) for the release of gaseous hydrogen. The system is configured to perform a process for the production of hydrogen and thermal power through an oxidation-reduction reaction between a material acting as an anode, a material acting as a cathode and a material acting as an electrolyte.
Resumen de: WO2025128535A1
A method for producing hydrogen using a feed stream comprising ammonia is provided. The method may include the steps of: cracking a gaseous ammonia feed comprising ammonia and at least 0.15% water vapor in an ammonia cracker to produce a cracked gas stream comprising hydrogen, nitrogen, unreacted ammonia, and water vapor; cooling the cracked gas stream to a separation temperature that is sufficient for condensing at least a portion of the unreacted ammonia and the water vapor to form a dual phase fluid; separating the dual phase fluid in a separator that is configured to produce an aqueous ammonia stream and a vapor stream, the vapor stream comprising predominantly of hydrogen and nitrogen; wherein the separation temperature is below 0°C.
Resumen de: WO2025127924A1
The present invention relates to an electrolyzer designed for the generation of hydrogen and oxygen through water electrolysis. The electrolyzer comprises a housing structure accommodating at least one electrolytic cell, which includes an anode, a cathode, and an ion-conducting membrane. A water inlet is provided to introduce water into the electrolytic cell, and an electrical power source is operatively connected to the anode and cathode to facilitate the electrolysis process. The electrolyzer also includes separate outlets for the efficient extraction of hydrogen and oxygen generated during electrolysis. A multi-parameter optical measurement system is integrated within the electrolyzer. This system features at least one optical fiber with multiple sensing points distributed along its length, each capable of detecting various operational parameters within the electrolyzer.
Resumen de: WO2025125277A1
The invention relates to an electrolysis system comprising an electrolysis stack (1) having multiple electrolytic cells (101) which each comprise a cathode chamber (102) and an anode chamber (103) and are designed to electrolytically split water in the anode chamber (103) into hydrogen and oxygen. The hydrogen generated in the cathode chamber (102) is fed to a first gas-liquid separator (9) through a cathode outlet (2) of the electrolysis stack (1) and via a medium line (7) connected thereto. A second gas-liquid separator (15) can be connected to the cathode outlet (2). Depending on the pressure in the electrolysis stack (1), the cathode outlet is connected to the first gas-liquid separator (9) or to the second gas-liquid separator (15).
Resumen de: WO2025125633A1
The present disclosure relates to apparatuses for producing hydrogen, and to top-down methods for producing nanoparticles. Different mechanical mills may be used to break down micron sized soil or sand particles and to react the particles with water, particularly sea water.
Resumen de: WO2025125439A1
A methanol plant and process for producing methanol are provided. A first SOE section is arranged to receive a carbon dioxide-rich feed and electrolyse it to a carbon monoxide-rich stream. A methanol loop is arranged to receive at least a portion of the carbon monoxide-rich stream and a hydrogen-rich stream and convert them to a crude methanol stream. A first H2O-rich stream is converted to a first steam stream by means of heat from the electrolysis process in the first SOE section. The first steam stream is used it as heat for the distillation of the crude methanol stream in the methanol distillation section.
Resumen de: WO2025125243A1
The invention relates to a method for producing an electrode (10) for use in alkaline electrolysis of water, the method comprising: providing a metal substrate (12); providing a coating material (26) comprising powder (28) consisting of a catalyst material (20), and comprising non-metal particles (24); and coating at least a portion of the substrate with the coating material. The invention also relates to electrodes produced in this way.
Resumen de: WO2025125346A1
The present application relates to a water electrolyzer cell (26), related stack of water electrolyzer cells and process The cell (26) comprises a cell casing (34) defining an anodic compartment (36) and a cathodic compartment (38). The anodic compartment (36) comprises an anode chamber (50) and the cathodic compartment (38) comprises a cathode chamber (58). The cell casing (34) comprises a membrane (40) separating the anode chamber (50) from the cathode chamber (58). The anodic compartment (36) defines, within the cell casing (34), an anodic degassing cavity (52) located on top of the anode chamber (50). On the other side, the cathodic compartment (38) defines, within the cell casing (34), an cathodic degassing cavity (60) located on top of the cathode chamber (58). The cell casing (34) comprises a partition wall (42) tightly separating the anodic degassing cavity (52) from the cathodic degassing cavity (60).
Resumen de: WO2025125181A1
The invention relates to the synthesis of urea from ammonia and carbon dioxide, wherein the hydrogen required for ammonia synthesis is obtained both by steam reforming of feed natural gas (grey hydrogen) and by electrolysis of water using electricity from renewable energy sources (green hydrogen). As the proportion of green hydrogen increases, the amount of carbon dioxide formed in the synthesis gas during steam reforming is no longer sufficient for the synthesis of urea. Therefore, flue gas, which is formed during the combustion of a fuel gas composed of fuel natural gas and combustion air and which also contains carbon dioxide, is additionally used. The oxygen formed during the electrolysis of water is introduced into the flue gas, and the modified flue gas is fed to a secondary reformer; and/or the fuel natural gas is combusted together with combustion air and the oxygen formed during electrolysis. Excess nitrogen is preferably separated from the synthesis gas before it is used for the synthesis of ammonia.
Nº publicación: WO2025125180A1 19/06/2025
Solicitante:
THYSSENKRUPP UHDE GMBH [DE]
THYSSENKRUPP AG [DE]
THYSSENKRUPP UHDE GMBH,
THYSSENKRUPP AG
Resumen de: WO2025125180A1
The invention relates to the synthesis of urea from ammonia and carbon dioxide, wherein the hydrogen required for ammonia synthesis is obtained both by steam reforming of feed natural gas (grey hydrogen) and by electrolysis of water using electricity from renewable energy sources (green hydrogen). As the proportion of green hydrogen increases, the amount of carbon dioxide formed in the synthesis gas during steam reforming is no longer sufficient for the synthesis of urea. Therefore, flue gas, which is formed during the firing of the steam reformer and also contains carbon dioxide, is additionally used. After reducing the nitrogen content, the flue gas is fed into the reforming process. The carbon dioxide from the synthesis gas and the flue gas is combined, separated using conventional carbon dioxide scrubbing, and used for the synthesis of urea.
BOPI
Sede Electrónica
