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793
resultados
Última actualización
27/09/2024 [08:40:00]
Resultados 25 a 50 de 793
Resumen de: US2024307857A1
A method for preparing a metal-free few-layer phosphorous nanomaterial. The method comprises an ice-assisted exfoliation process (or solvent ice-assisted exfoliation process). The method allows for the preparation of a few-layer phosphorous nanomaterial with improved yield and reduced duration and exfoliation power. The few-layer phosphorous nanomaterial is used in the preparation of a photocatalyst. The photocatalyst exhibits a long-term stability, high photocatalytic H2 evolution efficiency from water, and good stability under visible light irradiation.
Resumen de: US2024308851A1
Provided are a carbon dioxide decomposition step of generating magnetite that has a surface to which carbon adheres, a carbon separation step of generating carbon and iron chloride, a hydrogen production step of generating magnetite, hydrogen, and a hydrogen chloride gas, and a reducing agent regeneration step of generating the reducing agent used in the carbon dioxide decomposition step, in which the reducing agent is an oxygen-deficient iron oxide represented by Fe3O4-δ (where, δ is 1 or more and less than 4) obtained by reducing magnetite while maintaining a magnetite crystal structure, an oxygen-completely deficient iron (δ=4) obtained by completely reducing magnetite, an oxygen-deficient iron oxide obtained by reducing hematite or a used disposable warmer, or an oxygen-completely deficient iron obtained by completely reducing hematite or a used disposable warmer.
Resumen de: US2024308843A1
Systems and methods for sequestering carbon, evolving hydrogen gas, producing iron oxide as magnetite, and producing magnesium carbonate as magnesite through sequential carbonation and serpentinization/hydration reactions involving processed olivine—and/or pyroxene-rich ores, as typically found in mafic and ultramafic igneous rock. Precious or scarce metals, such nickel, cobalt, chromium, rare earth elements, and others, may be concentrated in the remaining ore to facilitate their recovery from any gangue material.
Resumen de: US2024308850A1
Described herein are techniques that may be performed in an Integrated Energy System (IES) to produce Nitric Acid (HNO3) while minimizing a carbon footprint. Such techniques, as performed by a resource production plant, may comprise receiving electricity and steam from a power plant to produce Hydrogen (H2) gas from the steam at a Hydrogen (H2) production sub-plant, receiving electricity from the power plant and air from the environment to produce Nitrogen (N2) gas at a Nitrogen (N2) production sub-plant, producing Ammonia (NH3) from the Hydrogen (H2) gas and the Nitrogen (N2) gas at a nitrogen production sub-plant, and producing Nitric Acid (HNO3) from the Ammonia (NH3) at a Nitric Acid (HNO3) production sub-plant.
Resumen de: US2024308842A1
A hydrogen production system equipped with at least one container for housing a hydrogen compound member, a heating device for heating the inside of the at least one container by a heating medium, a cooling device for cooling the inside of the at least one container, and a water supply device for supplying water into the at least one container, the heating device being equipped with a solar collector for heating the heating medium by collecting sunlight and irradiating the heating medium.
Resumen de: US2024308932A1
An amount of atmospheric emission of carbon dioxide can be reduced by a method for producing a synthetic fuel including a gasification step G of gasifying waste by reacting it with oxygen and water at a high temperature, a carbon dioxide separation step S of separating carbon dioxide from a gasified gas G1 produced in the step G, an FT synthesis step FT of producing the synthetic fuel by Fischer-Tropsch synthesis from a synthetic gas G2 produced in the step S and a carbon dioxide electrolysis step E of electrolyzing the carbon dioxide separated in the step S to produce an electrolyzed gas G3 containing carbon monoxide and carbon dioxide, the electrolyzed gas G3 produced in the carbon dioxide electrolysis step E being supplied to the carbon dioxide separation step S such that carbon dioxide is separated from the gasified gas G1 and the electrolyzed gas G3.
Resumen de: US2024309519A1
The present disclosure refers to a method of electrochemical conversion of organic waste to organic acid and hydrogen, comprising the steps of: (i) subjecting organic waste to ball milling under alkaline or acidic conditions to obtain pre-treated organic waste; (ii) introducing the pre-treated organic waste to a first compartment of an electrochemical cell, wherein the electrochemical cell comprises: the first compartment containing a nickel-based anode, a second compartment containing a cathode, and an electrolyte; and (iii) applying an electrical potential between the anode and the cathode, thereby producing organic acid at the anode, and hydrogen at the cathode. The present disclosure also refers to an organic acid or hydrogen produced from the method disclosed herein.
Resumen de: AU2022447788A1
The invention relates to an electrochemical cell (1) for a high-pressure electrolyser, comprising: a closed cell frame (3) made of a high-pressure-resistant first material (5); an electrochemical reaction region (7), which is arranged completely inside the cell frame (3) and comprises an anodic half cell and a cathodic half cell; a gap (9), which spatially separates the reaction region (7) from the cell frame (3); and a second material (11) introduced into the gap (9), wherein the second material (11) is an electrical insulator, and wherein the second material (11) has a lower diffusion coefficient with respect to the entry of foreign ions into the reaction region (7). The invention also relates to a cell stack (19) comprising a plurality of electrochemical cells (1) and to a high-pressure electrolyser comprising a cell stack (19).
Resumen de: US2024309801A1
A multi-chamber assembly safely stores enhancement gas for efficient and complete combustion of a carbonaceous fuel is presented. The multi-chamber assembly safely stores the enhancement gas, for example, for use by the internal combustion engine such as an internal combustion engine of a vehicle and/or a generator.
Resumen de: AU2024216406A1
Abstract According to at least one aspect, a hydrogen gas dispensing system is provided. The hydrogen gas dispensing system includes a source configured to provide a hydrogen gas, a storage device configured to store the hydrogen gas up to a first pressure level, a dispenser configured to dispense the hydrogen gas up to a second pressure level that is higher than the first pressure level, and a compressor fluidly coupled to the source, the storage device, and the dispenser, the compressor configured to compress the hydrogen gas from the source up to the first pressure level for storage in the storage device and configured to compress the hydrogen gas from the storage device up to the second pressure level for dispensing via the dispenser. According to at least one aspect, the dispensing system comprises an input power port configured to receive input power from a power source and an output power port configured to deliver output power derived from the input power received at the input power port to charge an electric vehicle.
Resumen de: AU2023239123A1
The present invention addresses the problem of providing a water electrolysis method which is capable of maintaining a high electrolysis efficiency. The present invention proposes a water electrolysis method wherein: water is supplied to a water electrolysis cell, the inside of which is divided into an anode and a cathode by means of an electrolyte membrane, so as to generate oxygen at the anode and hydrogen at the cathode, respectively; and the electrolyte membrane is provided with a first layer that contains a polymer electrolyte and a second layer that is arranged on the cathode side of the first layer and contains carbon particles.
Resumen de: WO2024190982A1
Disclosed are a catalyst for the dehydrogenation of ammonia, a manufacturing method therefor, and a method for producing hydrogen using same. The disclosed catalyst for the dehydrogenation of ammonia comprises clay and an alkali metal and ruthenium supported on the clay.
Resumen de: WO2024187243A1
The present disclosure is directed to a geothermal hydrogen production and compression system, wherein the system comprises an impure water intake to receive water from a impure water source, at least one geothermal well having a well inlet to receive the impure water from the impure water intake in to the geothermal well and one or more well outlets adapted to return heated impure water from the geothermal well, one or more well outlets being adapted to direct the heated impure water from the geothermal well through a steam engine providing a mechanical output, a purification plant comprising one or more purification chambers for separating impurities from the heated impure water expelled from the steam engine to produce at least some fresh water, one or more discharge outlets to discharge one or more products of the purification plant wherein the fresh water is directed to an electrolyser for electrolysis to produce hydrogen gas, where the hydrogen gas is passed through a hydrogen compressor coupled to the mechanical output and pressurised in a storage apparatus.
Resumen de: WO2024188507A1
The invention relates to a process and to an apparatus for synthesising ammonia (14), in which, in a synthesis circuit, a hydrogen- and nitrogen-containing ammonia synthesis gas (1) is formed by adding makeup hydrogen and is conveyed to an ammonia reactor (A) in order to react it, with catalytic assistance, to form an ammonia-, hydrogen- and nitrogen-containing synthesis product (2) which is separated into an ammonia-rich liquid phase (5) and into a gas phase (6) consisting predominantly of hydrogen and nitrogen, of which at least some is recycled via the synthesis circuit, upstream of the ammonia reactor (A), in order to form the ammonia synthesis gas (1), wherein a water-containing hydrogen fraction (electrolysis hydrogen) (9), generated by electrochemically splitting water, is provided in order to obtain the makeup hydrogen. The invention is characterised in that the electrolysis hydrogen (9) or a hydrogen fraction (10), obtained from the electrolysis hydrogen (9) by reducing free oxygen (O), is brought into contact with at least some (15) of the ammonia-rich liquid phase (5) in order to separate off water and to obtain the water-free makeup hydrogen (16).
Resumen de: WO2024190886A1
Disclosed is a ceramic reversible cell which contains at least one substance selected from the group consisting of perovskite type metal oxides, hydrates of the perovskite type metal oxides, and hydrides of the perovskite type metal oxides, wherein: the at least one substance selected from the group consisting of perovskite type metal oxides, hydrates of the perovskite type metal oxides, and hydrides of the perovskite type metal oxides contains A (wherein A is at least one element selected from the group consisting of Ba, Sr and Ca), B (wherein B is at least one element selected from the group consisting of Zr, Sn, Ce, Ti and Hf) and M (wherein M is at least one element selected from the group consisting of In, Fe, Cr and Mn) as main metal atoms; and hydride ions are contained therein when equilibrium is reached by bringing dried hydrogen into contact with the ceramic reversible cell, the dried hydrogen satisfying a specific formula and having a moisture content of 20 ppm or less in terms of volume ratio at 500°C to 900°C.
Resumen de: WO2024189651A1
The present invention relates to ternary metal(s) hydroxide (M1-M2-Ni)(OH)2 composite supported on nickel foam (NF) having nanoflower arrays structure, which acts as a self- standing bifunctional electrocatalyst for cathode as well as anode (both electrodes) for water electrolysis/splitting. Further, the present invention provides hydrothermal process for the preparation of said bi-functional electrocatalyst. The bifunctional catalyst disclosed herein is useful in performing water electrolysis reactions to generate hydrogen and oxygen.
Resumen de: AU2022435941A1
A wind turbine is provided that comprises a nacelle (10) configured to be arranged on a wind turbine tower (103), a nacelle housing (11) of the nacelle (10), wherein the nacelle housing (11) is configured to house at least part of an electrical power generation system (20) of the wind turbine (100), and a hydrogen production system (30). The hydrogen production system (30) comprises an electrolyzer (31) configured to receive electrical power from the electrical power generation system (20), wherein the electrolyzer (31) is arranged inside said nacelle housing (11) of the nacelle (20) in which at least said part of the electrical power generation system (20) is arranged. One or more other components (32, 33, 34, 35, 36, 37, 38) of the hydrogen production system (30) are arranged at a base (105) of the wind turbine tower (103) and/or within the wind turbine tower (103).
Resumen de: CN118201702A
A system (1) comprises a hydrogen source (19) and a nitrogen source (15). A hydrogen compression unit (2) compresses hydrogen from the hydrogen source (19). An ammonia synthesis unit (5) fluidly coupled with the hydrogen compression unit (2) and the nitrogen source (19) compresses the hydrogen and nitrogen blend delivered to the ammonia synthesis unit (5). In use, the seal gas supply line (37) delivers compressed hydrogen to the dry gas seal (35) of the hydrogen compressor and the separation gas supply line (20) delivers nitrogen to the at least one dry gas seal (35). The ammonia synthesis unit (5) is fluidly coupled with the exhaust ports (45, 47) of the dry gas seals (35) to receive and process compressed hydrogen from the hydrogen compression unit (2), nitrogen from the nitrogen source (15), and gases exhausted from the dry gas seals (35).
Resumen de: TW202332109A
An electrochemical system includes fuel cell or electrolyzer modules, and a skid supporting the modules.
Resumen de: EP4431897A2
Provided is a method of testing for a leak in a fluid system. The method includes submerging at least a portion of an electrically conductive body in an electrolyte solution, with the electrically conductive body and electrolyte solution being in an internal chamber of a device. The method further includes directing an electrical signal to the electrically conductive body, causing a reaction between the electrically conductive body and the electrolyte solution to produce hydrogen. The method further includes injecting the hydrogen into the fluid system for leak detection.
Resumen de: GB2628224A
A liquid hydrocarbon production method comprising: providing a first reactant stream 2 comprising water and carbon dioxide; passing the first reactant stream to a first electrolysis unit 1 to form syngas 5; passing the syngas to a hydrocarbon synthesis unit 8 to form a liquid hydrocarbon product 9 and an effluent gas 10; passing the effluent gas and steam to a derichment reactor 20 form a methane-enriched effluent gas 21; passing the methane-enriched effluent gas to the first electrolysis unit to form a gas mixture comprising hydrogen and one or both of carbon monoxide and carbon dioxide; and introducing the gas mixture into the syngas. The liquid hydrocarbon may be a hydrocarbon fuel, preferably diesel, gasoline, jet fuel, or kerosene. The first electrolysis unit may comprise a solid oxide electrolyser cell (SOEC) comprising an anode, a cathode, and a solid electrolyte membrane disposed between the anode and cathode.
Resumen de: WO2023117176A1
The invention relates to a method for producing a membrane electrode arrangement (10) for an electrolysis cell (12) for the electrochemical separation of water into hydrogen and oxygen, comprising the steps of: - providing a substrate (14) having a first surface (16) and a second surface (18), which faces away from the first surface (16), - coating at least one of the surfaces (16, 18) of the substrate (14) with a catalyst material (20, 22), - immersing the coated substrate (14) in an extraction agent (24), by means of which a solvent is at least partially extracted from the catalyst material (20, 22), and - drying the coated substrate (14) at a temperature that is lower than 60°C, preferably lower than 50°C, particularly preferably lower than 48°C. The invention additionally relates to a membrane electrode arrangement (10).
Resumen de: CN118265811A
There is provided a high-voltage electrolyzer for generating hydrogen and oxygen, comprising a plurality of electrolysis cells arranged in series, where each cell comprises a body made of an electrically conductive metal, said body consisting of an assembly of horizontal and vertical tubes connected to each other, said body constituting an electrode connectable to a DC power source; wherein the assembly comprises three horizontal ducts and at least two vertical ducts, each housing an elongated central electrode and a tubular membrane, where each vertical duct, together with the central electrode, the membrane and the electrolyte, forms an electrolytic cell, the electrolytic cells within each cell being connected in parallel, where the membrane is arranged between the central electrode and the membrane. Each cell further includes at least two vertical conduits that do not accommodate the central electrode, a first vertical conduit that connects the lower horizontal conduit to the first upper horizontal conduit, and a second vertical conduit that connects the lower horizontal conduit to the second upper horizontal conduit.
Resumen de: FI20216157A1
An electrolyzer system comprises electrolyzer elements (101) each comprising an electrolyzer stack (104) constituted by electrolysis cells. Furthermore, each electrolyzer element comprises a water inlet (106), a hydrogen separator tank (107) having a hydrogen outlet (108), an oxygen separator tank (109) having an oxygen outlet (110), and a channel system (111) for conducting electrolyte from the hydrogen separator tank and from the oxygen separator tank to the electrolyzer stack. The electrolyzer stacks of the electrolyzer elements are electrically connected to each other so that direct voltage of the electrolyzer system is a sum of direct voltages of the electrolyzer stacks of two or more of the electrolyzer elements. The water inlets, the hydrogen outlets, and the oxygen outlets of different ones of the electrolyzer elements are galvanically separated from each other. This enables the direct voltage of the electrolyzer system to have a desired value with low stray electric currents.
Nº publicación: EP4431585A1 18/09/2024
Solicitante:
COOPINTER KFT [HU]
Coopinter Kft
Resumen de: EP4431585A1
The subject of the invention is a method and system for the simultaneous use of electricity produced by PV solar panels and wind power plants for the production of synthetic natural gas. During the process the energy source is energy produced by household-size small power plants (mini pp), small combined heat and power plants (CHPs), solar power plants and wind power plants, as well as "deep valley" we use nuclear energy and the negative balancing energy of the electricity network. We connect the energy sources via the electricity network to at least one water digester, which is thus operated with electricity obtained from the energy sources, the hydrogen produced by the water digester is fed into a methanizer, carbon dioxide produced by natural gas consumption equipment is supplied to the hydrogen in the methanizer, from the hydrogen and methane is produced from carbon dioxides with the help of the methanizer, and the methane produced in this way is used to operate the natural gas consuming equipment. The method caracterized by the fact that the amount of hydrogen to be produced by the water electrolyser (10) is determined in the amount sufficient to produce the methane required to operate the natural gas consuming equipment (12), the water electrolyser (10) adjusted to the performance of the natural gas consuming equipment (12).The subject of the invention is also a control and regulation device that ensures the coordinated operation of the above system, which includes a ce
BOPI
Sede Electrónica
