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496
results.
Updated on
07/06/2025 [07:41:00]
Results 25 to 50 of 496
Absstract of: US2025179655A1
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.
Absstract of: US2025179666A1
Embodiments include a method for operating an electrolysis system. Aspects include supplying service water to a water treatment system and purifying and deionizing the service water in the water treatment system to create deionized water and ion-containing wastewater. Aspects also include supplying the deionized water from the water treatment system to an electrolyzer and supplying the ion-containing wastewater from the water treatment system to a cooling device. A waste heat generated by the electrolyzer is dissipated by the cooling device.
Absstract of: US2025179660A1
A method for controlling an organic hydride generation system includes controlling potentials in an anode electrode and a cathode electrode such that a potential change in an electrode having a higher deterioration rate among the anode electrode and the cathode electrode included in an electrolytic bath is smaller than a potential change in an electrode having a lower deterioration rate.
Absstract of: US2025179010A1
Provide are a urea production method and a urea production apparatus in which hydrogen and oxygen are produced by electrolysis of water in an electrolysis unit, nitrogen is separated and recovered from air in an air separation unit, ammonia is synthesized in an ammonia synthesis unit using hydrogen from the electrolysis unit and nitrogen from the air separation unit as raw materials, carbon dioxide is produced by combusting a fuel in an oxycombustion unit while using at least the oxygen from the electrolysis unit, and urea is synthesized in a urea synthesis unit by using the carbon dioxide and the ammonia as raw materials.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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).
Absstract of: 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.
Absstract of: 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).
Absstract of: EP4563727A2
A method of operating an electrolyzer system includes providing steam from a steam source through a system steam conduit to module steam conduits located in respective electrolyzer modules, controlling a flow rate of the steam through the system steam conduit using a system mass flow controller located on the system steam conduit, providing portions of the steam to the module steam conduits and providing steam in the module steam conduits to respective stacks of electrolyzer cells located in respective hotboxes in the respective electrolyzer modules, and operating the stacks to generate a hydrogen product stream and an oxygen exhaust stream.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: WO2025109126A1
Water electrolyser stack having a range of half-cell frames which each circumscribes one of an anolytic or a catholytic process chamber and which half-cell frames are arranged and aligned in an array between a proximal electric current injector/collector plate and a distal electric current injector/collector plate, and where each half-cell frame comprises an embedded furrow flow channel adapted to serve an electrolyte flow from a stack internal inflow manifold channel to a corresponding anolytic or catholytic reaction chamber and an embedded furrow flow channel adapted to serve an electrolyte and gas outflow from a corresponding anolytic or catholytic reaction chamber to a corresponding stack internal manifold channel wherein each of the embedded furrow flow channels comprise at least one fluid and/or gas trap section.
Absstract of: US2024044023A1
Zero-gap electrochemical cell architectures that employ molecular-level capillary and/or diffusion and/or osmotic effects to minimize the need for macroscopic external management of the electrochemical cell. Preferably, these effects intrinsically respond to the electrochemical cell conditions, making them self-regulating. In one example is disclosed an electro-synthetic or electro-energy cell, and method of operation, including a reservoir for containing a liquid electrolyte, a first gas diffusion electrode positioned outside of the reservoir, and a second electrode positioned outside of the reservoir. A porous capillary spacer is positioned between the first gas diffusion electrode and the second electrode, the porous capillary spacer having an end that extends into the reservoir. Preferably, the porous capillary spacer is able to fill itself with the liquid electrolyte when the end of the porous capillary spacer is in liquid contact with the liquid electrolyte in the reservoir.
Absstract of: WO2025109158A1
A process for the recycling of plastic waste containing at least one of polyethylene or polypropylene comprising the steps a) thermal pyrolysis in an inert atmosphere of the plastic waste to obtain a pyrolysis oil, b) optionally purifying the pyrolysis oil obtained in step a), c) fractionating the pyrolysis oil to obtain at least one fraction of lower boiling hydrocarbons that can be further processed in a cracker, in particular a steam cracker, to give hydrocarbons of lower molecular weight, and at least one fraction of high-boiling residues, d) incinerating high-boiling residues obtained in step c) with an oxygen containing gas, wherein a carbon dioxide containing flue gas stream is obtained, e) purifying the carbon dioxide containing flue gas stream obtained in step d), wherein a purified carbon dioxide containing gas stream is obtained, f) reduction of the carbon dioxide contained in the gas stream obtained in step e) to obtain a gas stream containing carbon monoxide, optionally carbon dioxide and optionally hydrogen, g) optionally admixing hydrogen, preferably produced by water electrolysis, to the gas stream obtained in step f), h) reacting a gas mixture containing carbon monoxide, hydrogen and optionally carbon dioxide obtained in step f) or g) to give methanol, i) manufacturing C2-C4-olefins by a methanol to olefin-process from methanol obtained in step h), j) polymerizing ethylene and/or propylene manufactured in step i) to give polyethylene and/or polypropylene, res
Nº publicación: MA71662A 30/05/2025
Applicant:
HYSATA PTY LTD [AU]
Hysata Pty Ltd
Absstract of: US2024044023A1
Zero-gap electrochemical cell architectures that employ molecular-level capillary and/or diffusion and/or osmotic effects to minimize the need for macroscopic external management of the electrochemical cell. Preferably, these effects intrinsically respond to the electrochemical cell conditions, making them self-regulating. In one example is disclosed an electro-synthetic or electro-energy cell, and method of operation, including a reservoir for containing a liquid electrolyte, a first gas diffusion electrode positioned outside of the reservoir, and a second electrode positioned outside of the reservoir. A porous capillary spacer is positioned between the first gas diffusion electrode and the second electrode, the porous capillary spacer having an end that extends into the reservoir. Preferably, the porous capillary spacer is able to fill itself with the liquid electrolyte when the end of the porous capillary spacer is in liquid contact with the liquid electrolyte in the reservoir.
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