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934
resultados
Última actualización
27/05/2025 [07:09:00]
Resultados 275 a 300 de 934
Resumen de: WO2025091024A1
A hydrogen generation system suitable for outdoor use is described. The system vents to the atmosphere to help to prevent accumulation of hazardous gas buildup within the system while also protecting hydrogen generation components from extreme weather conditions. The system includes walls that the allow ventilation while inhibiting moisture and wind from entering an interior of the system.
Resumen de: AU2023343511A1
The problem addressed by the present invention is that of specifying a process for producing lithium hydroxide which is very energy efficient. The process shall especially operate without consumption of thermal energy. The process shall be able to handle, as raw material, Li-containing waters generated during digestion of spent lithium-ion batteries. The LiOH produced by the process shall have a high purity sufficient for direct manufacture of new LIB. The process shall achieve a high throughput and have small footprint in order that it can be combined with existing processes for workup of used LIB/for production of new LIB to form a closed, continuous production loop. The process according to the invention is an electrolytic membrane process operating with a LiSICon membrane. It is a special aspect of the process that the electrolysis is operated up to the precipitation limit of the lithium hydroxide.
Resumen de: WO2025089500A1
The present invention relates to a catalytic activity promoter to be dissolved in an alkaline electrolyte solution of a water electrolysis apparatus so as to promote the catalytic activity of an oxygen-generating electrode. The catalytic activity promoter comprises 2,2,6,6-tetramethylpiperidine-1-oxyl, which is oxidized in a dissolved state in the oxygen evolution reaction of the water electrolysis apparatus, and then meets an oxygen evolution reaction intermediate so as to be spontaneously reduced, and oxidizes the oxygen evolution reaction intermediate.
Resumen de: WO2025089434A2
The present invention relates to an apparatus and method for producing, storing, and transferring hydrogen. According to the present invention, in order to address the problems of conventional systems and methods for producing, storing, and transferring marine green hydrogen, which are configured with a fixed structure in a small-scale offshore wind power generator on a coast or in a shallow sea area with a shallow depth of water, and thus, have low efficiency due to the difficulty in mass production of hydrogen, and a large storage space is occupied when the produced hydrogen is converted into a compressed gas form, and when the produced hydrogen is converted into ammonia, additional energy is required to extract the hydrogen again and there is a risk of environmental pollution and casualty in the event of an outflow accident, provided is a marine platform for producing, storing, and transferring marine green hydrogen, which is configured such that marine green hydrogen is produced through a floating marine structure configured to produce marine green hydrogen using electricity produced using renewable energy from the ocean, and simultaneously, the produced marine green hydrogen is stored, transferred, and offloaded through a single offshore platform (FPSO), thereby being possible to easily construct a large-scale production facility capable of producing, storing, and transferring marine green hydrogen without greenhouse gas emission on the basis of eco-friendly energy.
Resumen de: WO2025089546A1
An aspect of the present invention provides a system for producing sodium hypochlorite and hydrogen gas, comprising: a desalination unit for desalinating seawater to generate a fresh water stream and a concentrated water stream; a crystallization unit for crystallizing the concentrated water stream to generate a solid raw material containing sodium chloride; an electrolysis unit for electrolyzing reactants, derived from the solid raw material and water, to generate sodium hypochlorite and by-product gas; and a gas purification unit for purifying the by-product gas to generate hydrogen gas.
Resumen de: WO2025088755A1
An ammonia decomposition apparatus according to one aspect is provided with: a preheating flow path through which a reaction gas flows in a first direction; a first reaction flow path which is connected to the preheating flow path and through which the reaction gas that has passed through the preheating flow path flows in a second direction opposite to the first direction; a second reaction flow path which is connected to the first reaction flow path and through which the reaction gas that has passed through the first reaction flow path flows in the first direction; a first heating gas flow path which heats the reaction gas in the first reaction flow path and the second reaction flow path by a high-temperature gas; and a second heating gas flow path which is connected to the first heating gas flow path and which heats the reaction gas in the preheating flow path and the first reaction flow path by the high-temperature gas that has passed through the first heating gas flow path. In the first reaction flow path and the second reaction flow path, an ammonia decomposition catalyst is disposed. The first heating gas flow path, the first reaction flow path, the second heating gas flow path, and the preheating flow path are arranged concentrically or elliptic-concentrically around the axis of the second reaction flow path in this order from the side closer to the second reaction flow path.
Resumen de: WO2025087088A1
Disclosed in the present application are a catalyst, and a preparation method therefor and the use thereof. By using a chromium-manganese co-doped ruthenium-based catalyst, in cooperation with a coordination dispersion effect of a chelating agent structure, the catalyst provided in the present application effectively inhibits sintering agglomeration of chromium, manganese and ruthenium components, and the prepared catalyst has better uniformity. Chromium and manganese regulate and control a d electron center of a ruthenium active site at the same time and serve as a high-corrosion resistance protective layer, such that when an OER reaction is carried out under a strong-acidity electrolyte system, the catalyst can effectively maintain high-activity characteristics thereof, long-cycle stable operation is achieved, and the use cycle can reach 2000 hours. The catalyst serving as a high-performance acidic oxygen evolution reaction electrocatalyst can be used for stably and efficiently carrying out an oxygen evolution reaction (OER) in an acidic electrolyte environment, and can be used as an anode material for water electrolysis hydrogen production in a proton conduction polymer electrolysis hydrogen production electrolytic tank, thereby solving the problems of few types, low performance and a short service life of existing acidic oxygen evolution catalysts.
Resumen de: US2025136442A1
A plant for producing hydrogen from scission of methane molecules with production of carbon dust includes a reactor having an inner chamber delimited by a holding wall. The reactor includes an inlet opening for feeding methane (CH4), an outlet opening for allowing hydrogen (H2) in gaseous form to flow out. A discharge opening is for discharging carbon dust (C) from the inner chamber through a sealing rotary valve. A refractory lining, and an electromagnetic induction heater are for heating the inner chamber of the reactor.
Resumen de: US2025136457A1
Apparatus, system, and method for geothermally driven ammonia production. Hydrogen is generated using energy obtained from the underground magma reservoir and nitrogen is captured from air using the energy obtained from the underground magma reservoir. At least a portion of the generated hydrogen is combined with at least a portion of the generated nitrogen and heated at least to a reaction temperature using the energy obtained from the underground magma reservoir. The heated hydrogen contacts the heated nitrogen for a residence time to form the ammonia.
Resumen de: US2025135397A1
Hydrogen gas purifier electrochemical cells, systems for purifying hydrogen gas, and methods for purifying hydrogen gas are provided. The cells, systems, and methods employ double membrane electrode (DMEA) electrochemical cells that enhance purification while avoiding the complexity and cost of conventional cells. The purity of the hydrogen gas produced by the cells, systems, and methods can be enhanced by removing at least some intermediate gas impurities from the cells. The purity of the hydrogen gas produced by the cells, systems, and methods can also be enhanced be introducing hydrogen gas to the cells to replenish any lost hydrogen. Water electrolyzing electrochemical cells and methods of electrolyzing water to produce hydrogen gas are also disclosed.
Resumen de: US2025137139A1
A metal compound thin film, a method of forming the same and a thin film catalyst for water electrolysis are provided. The method includes providing a substrate; and performing plural ink-jet printing operations to the substrate to form the metal compound thin film on the substrate. The substrate is a non-hydrophobic substrate. Each of the ink-jet printing operations includes depositing a first precursor on the substrate by using a first nozzle of an ink-jet system; and depositing a second precursor on the substrate by using a second nozzle of the ink-jet system. A chemical reaction occurs between the first precursor and the second precursor to form a metal compound, and the metal compound thin film includes plural layers of the metal compound. Therefore, patterning the thin film can be easily accomplished, and chemical solution can be effectively saved.
Resumen de: US2025137153A1
A hydrogen generation and carbon dioxide storage system has increased processing capacity of carbon dioxide. The system includes a metal-carbon dioxide battery comprising an anode, a cathode, and an ion exchange membrane positioned between the anode and the cathode, a first supply unit configured to provide a first electrolyte to the anode, a second supply unit configured to provide a second electrolyte comprising hydrogen ions and an aqueous solution of alkali bicarbonate to the cathode, a separation unit, an electrolyte circulation unit located at a rear end of the separation unit, a dissolution unit located at a rear end of the electrolyte circulation unit, and a carbon dioxide purification unit.
Resumen de: US2025137151A1
A boiler system (1) according to one aspect of the present invention includes a water electrolysis device (20) that electrolyzes electrolysis target water with electric power supplied from a natural energy power generation device (10) to generate hydrogen and oxygen, a boiler (30) that heats makeup water by combusting fuel to generate steam, a heat exchange device (40) that exchanges heat between the electrolysis target water and a heat medium, and a control device (70) having a cooling controller (71) that cools the electrolysis target water by supplying the makeup water as the heat medium to the heat exchange device when a preset cooling start condition is satisfied.
Resumen de: US2025141341A1
A power supply device according to an embodiment is configured to supply DC power to an electrolytic cell producing hydrogen by electrolysis. The power supply device includes a power converter, a reactor, and a filter circuit; the power converter is self-commutated and includes a first output terminal and a second output terminal; the second output terminal is configured to output a positive voltage with respect to the first output terminal; the reactor is connected in series to at least one of the first output terminal or the second output terminal; and the filter circuit is connected between an anode and a cathode of the electrolytic cell. The filter circuit is a low-pass filter. A cutoff frequency of the filter circuit is set to be less than a switching frequency of the power converter.
Resumen de: AU2025202662A1
Abstract Embodiments of the present invention relates to two improved catalysts and associated processes that directly converts carbon dioxide and hydrogen to liquid fuels. The catalytic converter is comprised of two catalysts in series that are operated at the same pressures to directly produce synthetic liquid fuels or synthetic natural gas. The carbon conversion efficiency for C02 to liquid fuels is greater than 45%. The fuel is distilled into a premium diesel fuels (approximately 70 volume %) and naphtha (approximately 30 volume %) which are used directly as "drop-in" fuels without requiring any further processing. Any light hydrocarbons that are present with the carbon dioxide are also converted directly to fuels. This process is directly applicable to the conversion of C02 collected from ethanol plants, cement plants, power plants, biogas, carbon dioxide/hydrocarbon mixtures from secondary oil recovery, and other carbon dioxide/hydrocarbon streams. The catalyst system is durable, efficient and maintains a relatively constant level of fuel productivity over long periods of time without requiring re-activation or replacement. Fig 1 FIG. 1 - Integrated Catalytic Converter and Process for the Production of Renewable Liquid fuels Electrolysis Captured CO 2 H, CO2 104 Catalytic Conversion System 103 Gas 105 Syngas 106 Heat 107 Blending/Heating C t #1 Exchanger Catalyst #2 Syngas --------------------------- -------------------------------------- ----------- Conversion 109Tailg
Resumen de: AU2023366065A1
Abstract A sustainable water fuelled process and apparatus where a Unipolar electrolysis of water is described and the hydrogen and oxygen are stored before feeding a hydrogen fuel cell which is capable of providing sufficient electricity to provide power to a drive a vehicle, power a generator etc, after supplying electricity to the Unipolar electrolyser and the storage of the hydrogen and oxygen.
Resumen de: AU2023343512A1
The present invention relates to the electrochemical production of hydrogen and lithium hydroxide from Li+-containing water using a LiSICon membrane. The problem addressed by the present invention is that of specifying a process which is operable economically even on an industrial scale. The process shall especially exhibit a high energy efficiency and achieve a long service life of the membrane even when the employed feed contains impurities harmful to LiSICon materials. A particular aspect of the process is that the cell simultaneously separates off the lithium via the membrane and effects electrolysis of water. An essential aspect of the process is that the electrochemical process is performed in a basic environment, more precisely at pH 9 to 13. The pH is adjusted by addition of a basic compound to the feed.
Resumen de: WO2025087865A1
The present invention relates to a guard bed reactor for silicon removal, a solid oxide electrode system for producing hydrogen comprising a guard bed reactor for silicon removal, a method of operating the system to produce hydrogen and a use of the guard bed reactor for silicon removal for depleting a stream of steam from volatile silica species.
Resumen de: EP4545689A1
The present invention relates to a method for operating a Power-To-Hydrogen system (10) comprising at least one electricity source (1), at least one electrolyzer (2), a first hydrogen storage device (3) with permanent availability and a hydrogen transfer station (4). The hydrogen transfer station (4) is adapted and configured to be coupled temporarily to one or multiple second hydrogen storage devices (5,51,52) with time-dependent availability for a transfer of hydrogen to the one or multiple second hydrogen storage devices (5,51,52). A hydrogen production rate (P(t)) of the electrolyzer (2) is controlled based on a forecasted total available hydrogen storage capacity, wherein the forecasted total available hydrogen storage capacity comprises a storage capacity (X) of the first hydrogen storage device (3) and a time-dependent storage capacity of the second hydrogen storage device (5,51,52) provided by a hydrogen storage capacity model (C(t)).The method according to invention allows for an optimized hydrogen production planning and thus improves both profitability and sustainability of the Power-To-Hydrogen system.
Resumen de: EP4545479A1
Provided are a carbon nanotube molded body including carbon nanotubes, and a method of producing the same, wherein the carbon nanotube molded body has a specific surface area of 700 m<sup>2</sup>/g or more, the carbon nanotube molded body has a pore distribution from 3 to 15 nm, the carbon nanotube molded body has a tensile strength of 45 MPa or more, and the carbon nanotube molded body has a Young's modulus of 1600 MPa or more. Also provided are an electrochemical water-splitting electrode comprising the carbon nanotube molded body and platinum supported on the carbon nanotube molded body, a method of producing the same, and an electrochemical water-splitting apparatus comprising the electrochemical water-splitting electrode.
Resumen de: EP4545192A2
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: EP4545690A1
An electrolysis device of the present disclosure includes an electrolytic cell, an electrolyte supply unit, and an ion concentration adjustment unit. The electrolytic cell includes an anode chamber, a cathode chamber, and an ion exchange membrane disposed between the anode chamber and the cathode chamber. The electrolyte supply unit includes at least one tank accommodating an electrolyte, circulates a portion of the electrolyte as a first electrolyte between the at least one tank and the anode chamber, and circulates another portion of the electrolyte as a second electrolyte between the at least one tank and the cathode chamber. The ion concentration adjustment unit supplies an adjustment solution for adjusting a hydrogen ion concentration to the electrolyte supply unit.
Resumen de: EP4545476A1
Process (2) for the production of an enhanced fuel gas (4) containing at least hydrogen gas from a fuel stream, in particular from an ammonia fuel stream (6). Said process comprises the following steps:- providing the fuel stream (6) (S100);- providing a condensable medium (8), preferably water steam (8), to a cracker unit (10);- at least one step of performing an endothermic cracking reaction of the fuel stream (6) in the cracker unit comprising at least one catalyst suitable for cracking said fuelstream (6), so as to produce an at least partially cracked fuel stream as said enhanced fuel gas (4) (S300); and- condensing at least partially said condensable medium (8) to provide said heat for the endothermic cracking reaction of the fuel stream (6).
Resumen de: AU2023288544A1
Disclosed herein are low voltage electrolyzers and methods and systems of using those low voltage electrolyzers. Specifically, the electrolyzers can include a pH buffer in the catholyte and/or anolyte of the electrolyzer and generating a gas at the cathode or anode that is consumed at the other of the cathode or anode to reduce the open-circuit potential.
Nº publicación: JP2025069278A 30/04/2025
Solicitante:
カーボンテクノロジーホールディングス，エルエルシー
Resumen de: US2024139707A1
Biogenic activated carbon compositions disclosed herein comprise at least 55 wt % carbon, some of which may be present as graphene, and have high surface areas, such as Iodine Numbers of greater than 2000. Some embodiments provide biogenic activated carbon that is responsive to a magnetic field. A continuous process for producing biogenic activated carbon comprises countercurrently contacting, by mechanical means, a feedstock with a vapor stream comprising an activation agent including water and/or carbon dioxide; removing vapor from the reaction zone; recycling at least some of the separated vapor stream, or a thermally treated form thereof, to an inlet of the reaction zone(s) and/or to the feedstock; and recovering solids from the reaction zone(s) as biogenic activated carbon. Methods of using the biogenic activated carbon are disclosed.
BOPI
Sede Electrónica
