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981
resultados
Última actualización
06/06/2025 [07:03:00]
Resumen de: US2025177939A1
Method for controlling an ammonia synthesis converter or a methanol synthesis converter during intermittent availability of a renewable power-dependent hydrogen feed, wherein under a limited or no availability of power the converter effluent is recycled back to the inlet of said converter in a loop, and heated to keep said converter in a hot stand-by mode wherein the temperature in the reaction space remains within a target range.
Resumen de: US2025179942A1
An apparatus includes one or more thermal storage blocks that define a radiation chamber and a fluid flow slot positioned above the radiation chamber to define a fluid pathway in a first direction. The apparatus includes a heater element positioned adjacent to the radiation chamber in a second, different direction, wherein the radiation chamber is open on at least one side to the heater element. The apparatus includes a fluid movement system configured to direct a stream of fluid through the fluid pathway in the first direction.
Resumen de: AU2023396734A1
The present invention relates to an ammonia decomposition catalyst and a method for producing same and, more specifically, to an ammonia decomposition catalyst containing alumina (Al
Resumen de: US2025179901A1
A method of producing hydrogen and sequestering carbon or sulfur includes generating a fluid including at least one of water, steam, hydrogen sulfide, carbon dioxide and heat as a byproduct of a surface facility and injecting the fluid into a subsurface formation. The subsurface formation can include a porous rock, in various forms of porosity such as intragranular, intergranular, fracture porosity. The method can further include heating the fluid to stimulate an exothermic reaction of the fluid with components of the subsurface rock formation and produce a hydrogen reaction product and one or more of sulfur minerals from the hydrogen sulfide or carbon minerals from the carbon dioxide. The fluid can be heated to between about 25° C. and about 500° C. The method can also include extracting the hydrogen produced from the reaction of the fluid with the subsurface rock formation and mineralizing sulfur or carbon in the porous rock.
Resumen de: US2025179941A1
A thermal energy storage system with fluid flow insulation, the system including heated thermal storage blocks positioned within a housing, and a method for operating the thermal energy storage system, including providing a flow of fluid into the housing, the fluid convectively extracting heat from a top region, a side region and a bottom region of the thermal energy storage system, to generate heated fluid that insulates the thermal storage blocks from the housing and a foundation of the thermal energy storage system.
Resumen de: US2025179674A1
A system (1) for generating hydrogen gas comprises a reaction vessel (101) containing an aqueous solution (102) and a cathode (105) and an anode (107) each positioned at least partly in the reaction vessel (101). The system (1) comprises first and second ultrasonic transducers (215-220) which emit ultrasonic waves in the direction of the cathode (105) and the anode (107) respectively. Each ultrasonic transducer (215-220) is driven by a respective transducer driver (202) to optimise the operation of the system (1) for generating hydrogen gas by sonoelectrolysis.
Resumen de: US2025179985A1
A system and method by which energy from ocean waves is converted into hydrogen, and that hydrogen is used to manifest electrical and mechanical energies by an energy consuming device. A portion of the generated electrical power is communicated to water electrolyzers which produce oxygen and hydrogen from water as gases. At least a portion of the generated hydrogen gas is transferred to a transportation ship via a hose-carrying, remotely operated (or otherwise unmanned) vehicle, and subsequently transferred to an energy-consuming module or infrastructure, where a portion of the hydrogen is consumed in order to manifest a generation of electrical energy, a mechanical motion, and/or a chemical reaction.
Resumen de: US2025179673A1
A system (1) for generating hydrogen gas comprises a reaction vessel (101) containing an aqueous solution (102) and a cathode (105) and an anode (107) each positioned at least partly in the reaction vessel (101). The system (1) comprises first and second ultrasonic transducers (215-220) which emit ultrasonic waves in the direction of the cathode (105) and the anode (107) respectively. Each ultrasonic transducer (215-220) is driven by a respective transducer driver (202) to optimise the operation of the system (1) for generating hydrogen gas by sonoelectrolysis.
Resumen de: US2025179670A1
The invention relates to a method for operating an electrolyzer (10) for the production of hydrogen and oxygen, comprising a membrane (22), which is permeable to OH ions and separates an anode chamber (14) from a cathode chamber (16), said method comprising at least the following method steps:a) temporary dry operation of the cathode chamber (16),b) temporary diffusion of water molecules through the membrane (22) from the anode chamber (14) into the cathode chamber (16),c) variation of a differential pressure (42) between the cathode chamber (16) and the anode chamber (14) by means of a restrictor valve (46), andd) adjustment of the moistening/wetting of the cathode chamber (16) by adjusting a defined differential pressure (42).
Resumen de: US2025179675A1
A system (1) for generating hydrogen gas comprises a reaction vessel (101) containing an aqueous solution (102) and a cathode (105) and an anode (107) each positioned at least partly in the reaction vessel (101). The system (1) comprises first and second ultrasonic transducers (215-220) which emit ultrasonic waves in the direction of the cathode (105) and the anode (107) respectively. Each ultrasonic transducer (215-220) is driven by a respective transducer driver (202) to optimise the operation of the system (1) for generating hydrogen gas by sonoelectrolysis.
Resumen de: US2025179977A1
This invention is about a hydrogen-generating device, with low energy consumption and high electrode durability, for diesel cycle engines. The hydrogen-generating device includes an electrolysis cell made of aluminum, containing heat exchanger fins on the outside, an electrolytic solution, two electrodes; a hydrogen transport system to be injected into the engine's air intake system; electronic module for direct voltage control, used in electrolysis, of the electrode polarity alternation time, of the volume of hydrogen in a mixture of constant hydrogen/oxygen composition to be injected into the engine in a variable manner, thus injecting a quantity of up to 10% of the hydrogen:oxygen mixture, in the ratio of 65:35, per liter of diesel consumed, in a volume/volume ratio.
Resumen de: US2025179672A1
A system (1) for generating hydrogen gas comprises a reaction vessel (101) containing an aqueous solution (102) and a cathode (105) and an anode (107) each positioned at least partly in the reaction vessel (101). The system (1) comprises first and second ultrasonic transducers (215-220) which emit ultrasonic waves in the direction of the cathode (105) and the anode (107) respectively. Each ultrasonic transducer (215-220) is driven by a respective transducer driver (202) to optimise the operation of the system (1) for generating hydrogen gas by sonoelectrolysis.
Resumen de: EP4563494A1
The present invention provides a container and a hydrogen production system. The container includes a bottom base, an upper cover, a first side plate, and a driving device. The first side plate is arranged between the bottom base and the upper cover, and is connected to the bottom base and the upper cover separately; and the driving device is connected to the first side plate and is configured to drive the first side plate to rotate relative to the bottom base, and the first side plate drives the upper cover to move, to switch the container from a closed state to an open state. The container in the present invention can implement hoisting of a device, so that a process in which the device is placed in the container is simplified, and the design efficiency of the hydrogen production system is improved. In addition, it is convenient for personnel to enter the container for device overhaul and maintenance, thereby effectively resolving the problem of inconvenient maintenance on the device after the device is placed in the container.
Resumen de: EP4563524A1
The present invention relates to a method and device for producing hydrogen by dissociating the water molecule through thermochemical reactions, using a small amount of active material. The thermochemical reactions are induced by solar energy with a moderate concentration of up to 50 suns, which can be achieved through linear or parabolic concentrators.
Resumen de: CN119698495A
A process for the production of hydrogen comprising the steps of: a) providing a starting mixture comprising bromine, water and a sulfur-containing compound, b) reacting the starting mixture provided in step a) to produce a reaction mixture effluent comprising sulfuric acid and hydrogen bromide, c) separating the reaction mixture effluent obtained in step b) into one or more hydrogen bromide-enriched compositions and one or more sulfuric acid-enriched compositions, where at least one hydrogen bromide-enriched composition contains up to 1,000 ppm sulfuric acid, where step c) comprises at least two distillation steps, d) separating the reaction mixture effluent obtained in step c) containing up to 1,000 ppm sulfuric acid, at least a portion of the at least one hydrogen bromide-enriched composition comprising at least one hydrogen bromide-enriched composition comprising at least 50,000 ppm sulfuric acid and at least 50,000 ppm sulfuric acid is subjected to electrolysis to obtain hydrogen and a bromine-containing composition wherein the electrolysis cell is operated at an operating temperature of at least 70 DEG C, and e) recycling at least a portion of the bromine-containing composition obtained in step d) back to step a).
Resumen de: US2025171388A1
The disclosure provides a process for producing methanol and hydrogen from methane. The process of the disclosure comprises the steps of: •a) providing a gaseous feed stream comprising methane: •b) reacting said gaseous feed stream with at least one halogen reactant •under reaction conditions effective to produce an effluent stream comprising methyl halide, hydrogen halide •optionally poly halogenated alkanes •and optionally unreacted methane: •c) recovering said an effluent stream •d) reacting the recovered effluent stream with water and at least one organic base under reaction conditions effective to produce an aqueous solution of hydrogen halide •and a methanol stream comprising methanol (MeOH) and dimethyl ether (DME) and/or optionally unreacted methane, and, c) decomposing by means of electrolysis said aqueous solution of hydrogen halide under conditions effective to produce a gaseous hydrogen stream and a stream comprising halogen reactant.
Resumen de: US2025171388A1
The disclosure provides a process for producing methanol and hydrogen from methane. The process of the disclosure comprises the steps of: •a) providing a gaseous feed stream comprising methane: •b) reacting said gaseous feed stream with at least one halogen reactant •under reaction conditions effective to produce an effluent stream comprising methyl halide, hydrogen halide •optionally poly halogenated alkanes •and optionally unreacted methane: •c) recovering said an effluent stream •d) reacting the recovered effluent stream with water and at least one organic base under reaction conditions effective to produce an aqueous solution of hydrogen halide •and a methanol stream comprising methanol (MeOH) and dimethyl ether (DME) and/or optionally unreacted methane, and, c) decomposing by means of electrolysis said aqueous solution of hydrogen halide under conditions effective to produce a gaseous hydrogen stream and a stream comprising halogen reactant.
Resumen de: CN119604644A
A process for producing hydrogen and/or bromine by electrolyzing hydrogen bromide in the electrolysis of hydrogen bromide using a fluoropolymer membrane having a glass transition temperature Tg > = 110 DEG C, wherein the hydrogen bromide is derived from the bromination of hydrocarbons.
Resumen de: CN119604644A
A process for producing hydrogen and/or bromine by electrolyzing hydrogen bromide in the electrolysis of hydrogen bromide using a fluoropolymer membrane having a glass transition temperature Tg > = 110 DEG C, wherein the hydrogen bromide is derived from the bromination of hydrocarbons.
Resumen de: WO2024023030A2
A method of electrolysing hydrogen bromide comprising the steps i) synthesizing sulfuric acid such that hydrogen bromide is produced, ii) providing an electrolytic cell comprising an anode, a cathode, and a membrane sandwiched between the anode and the cathode, iii) feeding a first composition comprising hydrogen bromide and water to the anode, iv) feeding a second composition comprising hydrogen bromide and water to the cathode, and v) operating the electrolytic cell to produce hydrogen at the cathode.
Resumen de: WO2024023030A2
A method of electrolysing hydrogen bromide comprising the steps i) synthesizing sulfuric acid such that hydrogen bromide is produced, ii) providing an electrolytic cell comprising an anode, a cathode, and a membrane sandwiched between the anode and the cathode, iii) feeding a first composition comprising hydrogen bromide and water to the anode, iv) feeding a second composition comprising hydrogen bromide and water to the cathode, and v) operating the electrolytic cell to produce hydrogen at the cathode.
Resumen de: AU2023359996A1
The invention relates to an electrolysis system (1) for generating hydrogen and oxygen as product gases, comprising an electrolysis module (3) and a process unit (5), wherein the process unit (5) has a reactant line (7) for supplying process water and a product line (9), each of which is connected to the electrolysis module (3), and the process unit (5) is equipped with a thermally insulating insulation device (11), comprising a thermal insulating material (17), such that a slow cooling of the process water is produced during a standstill operation.
Resumen de: EP4563523A1
The invention relates to a process (100) for the production of hydrogen from ammonia comprising the following steps:- providing a water feed stream to a water electrolyzer (101);- performing a water electrolysis (102) of the water feed stream in the electrolyzer, producing an oxygen product stream and an electrolysis hydrogen stream;- providing an ammonia feed stream to an ammonia cracking reactor (103);- providing an oxidant stream (105) and performing a combustion reaction (106) with said oxidant stream, thereby generating heat;- in the ammonia cracking reactor, performing an endothermic reaction of ammonia cracking (104) of the ammonia feed stream with said generated heat;characterized in that the oxidant stream comprises at least a portion of the oxygen product stream produced by the water electrolysis of the water feed stream.
Resumen de: EP4563350A1
An electrolysis device configured to produce hydrogen gas from water, the electrolysis device comprising a container (4), the container accommodating an aqueous alkaline solution (5), a cathodic electrode (1), and an anodic electrode (2), an electrical current being selectively applied between the cathodic electrode and the anodic electrode, wherein the cathodic electrode and possibly the anodic electrode, is made of a nickel alloy, with a nickel base alloyed with at least one element chosen among chromium, molybdenum, cobalt and iron, wherein the cathodic electrode and the anodic electrode are manufactured by an additive manufacturing process, from respective first and second mixed metallic powder compounds, wherein the cathodic and anodic electrodes exhibit an outer surface comprising a plurality of first surface patterns (6,7).
Nº publicación: EP4564633A1 04/06/2025
Solicitante:
SUNGROW POWER SUPPLY CO LTD [CN]
Sungrow Power Supply (Nanjing) Co., Ltd
Resumen de: EP4564633A1
Disclosed in the present application are a power system and a frequency modulation control method therefor. The method comprises: first, determining whether the current power grid frequency of a power system falls within a preset allowable frequency deviation range; if not, performing calculation according to the current power grid frequency and a power grid rated frequency to obtain an input current change value of a hydrogen production power generation unit in the power system; on the basis of the size relationship between the input current change value and limit values thereof and the size relationship between the changed input current value and limit values thereof, determining a target input current of the hydrogen production power generation unit; and finally, adjusting an input current of the hydrogen production power generation unit according to the target input current, so as to allow the power grid frequency of the power system to fall within the preset allowable frequency deviation range. Therefore, by means of the relationship between system power consumption and frequency fluctuation, the present application can guide input current setting for the hydrogen production power generation unit on the basis of a measured system frequency to achieve frequency modulation control of the power system, thus solving the problem of frequency fluctuation of power grid systems caused by randomness and fluctuation of renewable energy power generation.
BOPI
Sede Electrónica
