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732
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Última actualización
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Resultados 75 a 100 de 732
Resumen de: WO2024205436A1
The object of the invention is a plasma-catalytic system for the decomposition of ammonia in gliding discharge plasma characterized in that it contains a gliding discharge reactor containing at least one catalytic bed (5) containing a metallic catalyst selected from a group including Ni and Co in an amount in a range of 2-20% by weight deposited on the Al2O3 substrate. Another object of the invention is the plasma-catalytic system of the invention for use in the decomposition of ammonia, characterized in that the mixture to be decomposed contains at least 60% ammonia and at least 40% another component selected from nitrogen and hydrogen with a flow rate in a range of 160-200 Ndm3/h.
Resumen de: CN117940594A
Provided herein are an apparatus for electrolyzing atomic hydrogen bursting and methods of using the same.
Resumen de: CA3233829A1
The invention relates to a novel frame for a PEM electrolysis cell and for a PEM electrolysis cell stack. The subject matter of the invention is the frame, a PEM electrolysis cell and stack-type PEM electrolysis devices, which comprise the frame according to the invention, preassembled components and methods for producing preassembled components and stack-type PEM electrolysis devices. The frame, PEM electrolysis cell and stack-type PEM electrolysis devices according to the invention are suitable for generating high-pressure hydrogen in combination with the use of thin proton exchange membranes. The invention is based on a novel frame- and sealing-concept. The invention also relates to a cover for stack-type PEM electrolysis devices.
Resumen de: US2024318329A1
An electrode structure includes an electrolyte membrane, a catalyst layer, a porous layer, and an ionomer layer. The catalyst layer is formed on a surface of the electrolyte membrane. The porous layer is stacked on an external side of the catalyst layer. The ionomer layer is interposed between the catalyst layer and the porous layer. Thus, it is possible to reduce electrical contact resistance between the catalyst layer and the porous layer.
Resumen de: AU2024200353A1
An electrode structure includes an electrolyte membrane (51), a plurality of anode catalyst particles (611) located on an anode side of the electrolyte membrane (51), 5 a plurality of cathode catalyst particles located on a cathode side of the electrolyte membrane, and a recombination layer (80) located between the electrolyte membrane (51) and the anode catalyst particles (611). The anode catalyst particles are used for electrolyzing water into a hydrogen ion, oxygen, and an electron. The cathode catalyst particles are used for combining the hydrogen ion and the electron with each other to 10 produce hydrogen. If hydrogen generated on the cathode side of the electrolyte membrane (51) permeates into the anode side across the electrolyte membrane (51), the hydrogen having permeated is combined with oxygen to turn into water again in the recombination layer (80). This makes it possible to suppress mixture of hydrogen into oxygen to be output from the anode side.
Resumen de: CN118019877A
The invention relates to a steam electrolysis system for producing hydrogen. The system comprises at least one steam electrolyser cell, at least one feed gas arrangement comprising at least one electric steam generator, at least one feed gas supply line for supplying a feed gas stream comprising at least steam from the at least one feed gas arrangement to the at least one steam electrolyser cell, at least one gas moving device for removing hydrogen from the at least one steam electrolysis cell, and at least one external power supply for operating the system. The at least one external power supply is electrically coupled to the at least one electric steam generator of the feed gas arrangement and to the at least one steam cell cell. The at least one steam cell cell and the at least one electric steam generator are electrically connected in parallel.
Resumen de: WO2024205408A1
Embodiments of the disclosure pertain to the conditioning of the purge gas stream in an NH3 synthesis plant comprising a water electrolysis unit to produce a H2 stream, ammonia synthesis loop, and a treatment section for treating purge gas at 10-70 bar(a) using scrubbing and membrane separation.
Resumen de: AU2024219683A1
A stable discharge pressure of compressed hydrogen gas generated from the electrolysis of water is achieved and maintained at the outlet of a "hybrid" multistage compression system comprising at least a first section comprising at least one centrifugal 5 compressor powered at least in part by electricity generated from at least one renewable energy source and a further section downstream of the first section, wherein the further section comprises at least one reciprocating compressor.
Resumen de: US2024328358A1
A propulsion system comprising, an ammonia cracking module and an engine module, wherein ammonia is supplied to the ammonia cracking module to produce a fuel blend of hydrogen, nitrogen and ammonia, said fuel blend subsequently being fed to said engine module to produce energy; and wherein there is a thermal balance between the ammonia cracking module and the engine module.
Resumen de: US2024328018A1
A method of operating an electrolyser comprising providing a reactant flow stream to the electrolyser and using the electrolyser to split the reactant into a product flow stream. The magnitude of the power supply to the electrolyser is determined and, if the magnitude of the power supply is less than or equal to a predetermined value, a dilutant gas flow stream is introduced into the reactant flow stream before the electrolyser. The dilutant gas is an inert gas. Also, a system for producing ammonia where the feed stock to the system is provided by the electrolyser.
Resumen de: US2024328012A1
Provided is a photocatalyst with significantly enhanced water splitting performance in YTOS or in a composition in which the yttrium element of YTOS has been replaced with another element. Also provided is a method for producing a photocatalyst that has a composition represented by the following general formula (I), the method including mixing, with a raw material of the photocatalyst, a flux component at a mass ratio of 0.01 times to 50 times, the flux component being composed of one or more chlorides and/or iodides of at least one selected from Li, Na, K, Rb, Mg, Ca, Sr, and Ba, and calcining a resultant product at 450° C. to 1050° C.:MaTibOcSd (I)(where M is a combination of one or more selected from Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, and Y, a is a number of 1.7 to 2.3, b is a number of 2, c is a number of 4.7 to 5.3, and d is a number of 1.7 to 2.3).
Resumen de: US2024328015A1
A polymer electrolyte water electrolyzer (PEWE). The PEWE includes a cathode catalyst layer, an anode catalyst layer, and a polymer electrolyte membrane between and separating the anode catalyst layer and the cathode catalyst layer. The PEWE further includes a blocking layer disposed between the cathode catalyst layer and configured to resist unwanted diffusion of ions or molecules through the polymer electrolyte water electrolyzer.
Resumen de: US2024328017A1
A controller of an electrolysis system in the present disclosure changes a current value to be specified for a first power supply device according to the pressure detected by a first pressure sensor provided on an oxygen supply passage between a pressure control valve and a water electrolysis stack.
Resumen de: US2024328019A1
A gas block (10) for the removal of multiple contaminants from a gaseous stream from an electrolyser (1). The gas block (10) comprises at least one inlet (13), the at least one inlet being configured to receive a gaseous stream from an electrolyser, and at least two outlets (12, 14), wherein the first outlet (12) is configured for the removal of contaminant liquid from the gas block, and the second outlet (14) is configured for the release of the gaseous stream from the gas block. A first removal chamber (15) is situated along a flow path of the gaseous stream between the at least one inlet and the first outlet, the first removal chamber being for removal of liquid and/or vapour from the gaseous stream. A second removal chamber (16) is situated along a flow path of the gaseous stream between the first removal chamber and the second outlet, the second removal chamber being for removal of a further contaminant from the gaseous stream. The gas block is primarily for use in the purification of a hydrogen stream from an electrolyser.
Resumen de: US2024328009A1
An electrode and a system for electrochemical hydrogen production from water oxidation and proton reduction can include covalently attaching a ruthenium complex onto a conducting material is provided by fluorine-doping a carbon cloth (FCC) and use this as an anode and/or a cathode in an electrochemical cell. The electrode for use in electrochemical hydrogen production from water oxidation is achieved by that the electrode comprises a ruthenium complex covalently attached onto a conducting material having a pyridine linker with a —CH2—CH2 spacer unit. The system for electrochemical hydrogen production from water oxidation and proton reduction can include at least an electrochemical cell having two electrodes, an anode and/or a cathode, where the electrodes comprise a ruthenium complex covalently attached onto a conducting material, is achieved by that the conducting material is made by fluorine-doped carbon cloth (FCC).
Resumen de: US2024328005A1
The present disclosure relates to a method to produce an oxygen evolution reaction electrode catalyst assembly comprising a dendritic nickel foam. The method is remarkable in that it comprises the steps of (a) providing a dendritic nickel foam material; (b) etching the dendritic nickel foam material by placing it in a etch solution being an acidic aqueous solution or an aqueous solution of metal chloride and recovering an etched dendritic nickel foam with nickel dendrites showing a chimney-like structure.
Resumen de: US2024328004A1
An electrolyzer including an electrolysis stack containing a plurality of panel-like electrolysis cells in a side-by-side arrangement and being electrically interconnected in series, wherein each electrolysis cell comprises an anode chamber with an anode arranged therein and a cathode chamber with a cathode arranged therein, wherein the anode chamber and the cathode chamber are separated from one another by a sheet-like separator. The electrolyzer having means for mechanically securing the electrical interconnection of the electrolysis stack. The stack contains at least two multi-cell elements, each including a plurality of the electrolysis cells and mechanical compression means, wherein the electrolysis cells of each multi-cell element are held together in a sealed manner by the mechanical compression means and wherein the means are configured to mechanically secure the electrical interconnection of the multi-cell elements.
Resumen de: US2024327999A1
Disclosed are membrane electrode assemblies having a cathode layer comprising a carbon oxide reduction catalyst that promotes reduction of a carbon oxide; an anode layer comprising a catalyst that promotes oxidation of a water; a polymer electrolyte membrane (PEM) layer disposed between, and in contact with, the cathode layer and the anode layer; and a salt having a concentration of at least about 10 uM in at least a portion of the MEA.
Resumen de: US2024327998A1
A method for generating hydrogen by water electrolysis, comprising only a positive electrode based on a bifunctional catalyst successively forming an oxygen evolution reaction (OER) electrode and a hydrogen evolution reaction (HER) electrode, depending if the device is subjected to or produces an electric charge, and a negative electrode using a redox pair Mm+/M, wherein M represents a metal element in reduced form and Mm+ represents said metal element in oxidized form, submerged in an aqueous electrolyte, comprising performing biased electrolysis to cause, at the negative electrode, the metal element in oxidized form Mm+ to be reduced to a reduced metal element M in solid form, the metal exhibiting an H2 overvoltage, and to cause, at the positive electrode, O2 to be generated to form the OER electrode and performing spontaneous reaction conversion between the positive electrode generating H2, to form the HER electrode, and the negative electrode at which the M is oxidized into Mm+.
Resumen de: US2024327996A1
In some implementations, a method may include generating, by a solar power generator, DC power, wherein the solar power generator may have a flat-on-ground configuration. The method may include receiving, by one or more electrolyzers, the DC power. The method may include generating, by the one or more electrolyzers and via an electrolysis process, oxyhydrogen (HHO) using the DC power.
Resumen de: WO2024205436A1
The object of the invention is a plasma-catalytic system for the decomposition of ammonia in gliding discharge plasma characterized in that it contains a gliding discharge reactor containing at least one catalytic bed (5) containing a metallic catalyst selected from a group including Ni and Co in an amount in a range of 2-20% by weight deposited on the Al2O3 substrate. Another object of the invention is the plasma-catalytic system of the invention for use in the decomposition of ammonia, characterized in that the mixture to be decomposed contains at least 60% ammonia and at least 40% another component selected from nitrogen and hydrogen with a flow rate in a range of 160-200 Ndm3/h.
Resumen de: US2024327995A1
A high-temperature steam electrolysis device, a hydrogen production method, and a hydrogen production system include: a high-temperature steam electrolysis cell having a cylindrical shape in which a hydrogen/steam gas diffusion electrode layer is disposed on an inner side of an electrolyte layer and an oxygen gas diffusion electrode layer is disposed on an outer side thereof; a steam flow channel in which high-temperature steam flows on an inner side of the high-temperature steam electrolysis cell; and a helium flow channel in which high-temperature helium flows to heat the high-temperature steam electrolysis cell on an outer side of the high-temperature steam electrolysis cell.
Resumen de: US2024327235A1
A preparation method for nano titanate, nano titanic acid, and nano TiO2. A Ti—T intermetallic compound, as a titanium source, is reacted with an alkaline solution under ambient pressure at a temperature near the boiling point of the alkaline solution, enabling the efficient preparation of titanate nanofilm materials under normal pressure. On this basis, it is possible to economically produce titanic acid nanofilm materials and TiO2 nanosheet/powder. In combination with subsequent high-temperature and high-pressure reaction, titanate nanotubes, titanic acid nanotubes, and TiO2 nanotubes/rods can be efficiently prepared. The preparation method provided herein has simple operation and low cost, and can prepare various nano titanate, nano titanic acid and nano titanium dioxide materials, including nanofilms and nanotubes/rods, exhibiting good application prospects in the fields of polymer-based nanocomposite materials, ceramic materials, photocatalytic materials, hydrolysis-based hydrogen production, hydrophobic materials, sewage degradation materials, bactericidal coatings, anti-corrosion paints, and marine paints.
Resumen de: US2024327210A1
The present invention provides a radial flow reactor with less uneven temperature even when an endothermic reaction is performed, small pressure loss, and easy maintainability as well, and also provides a method for producing an ammonia decomposition mixture using the same. The reactor according to the present invention is a so-called radial flow reactor having a cylindrical reaction vessel disposed in an upright position and a reaction region inside the reaction vessel, in which a chemical reaction is performed, wherein the reaction region has a catalyst member, having a heating part that generates heat by being energized and a catalyst disposed to be heated by the heating part, which is concentrically disposed in a cross-section perpendicular to an axial direction of the reaction vessel.
Nº publicación: US2024332577A1 03/10/2024
Solicitante:
TOKYO INSTITUTE OF TECH [JP]
UNIV OF TSUKUBA [JP]
OSAKA UNIV [JP]
TOKYO INSTITUTE OF TECHNOLOGY,
University of Tsukuba,
OSAKA UNIVERSITY
Resumen de: US2024332577A1
Provided are a hydrogen boride-containing composition, a hydrogen generation system, and a fuel cell system that achieve further performance improvement of a hydrogen supply source with a hydrogen boride-containing sheet. The hydrogen boride-containing composition contains a hydrogen boride-containing sheet having a two-dimensional network consisting of (BH)n(n≥4, where n is an integer) and an electron donor. At least a portion of the electron donor is supported on the hydrogen boride-containing sheet, electrons of the electron donor are supplied to the hydrogen boride-containing sheet by external stimulus, and hydrogen is generated from the hydrogen boride-containing sheet into which the electrons are injected.
BOPI
Sede Electrónica
