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370
resultados
Última actualización
26/08/2025 [06:58:00]
Resumen de: US2025267782A1
A system which facilitates the joining of metal or ceramic objects via heat in an oxygen-depleted atmosphere comprising: a plasma flame generator (torch), regulator, gas purifier, in-situ hydrogen generator, liquid pumps, battery, and electrical power supply. The electrical system is self-contained and is intended to provide equal or greater functionality to that of existing TIG/Plasma arc welders but in a portable form-factor free from reliance on expensive and cumbersome high pressure compressed gas bottles.
Resumen de: US2025266688A1
A system network includes at least two electrolysis systems, a power supply source, and a central supply line. The central supply line is connected to the secondary side of a transformer. The primary side of the transformer can be fed with energy from the power supply source. The transformer is designed for an operating frequency above the mains frequency of the public power grid, and so a higher-frequency AC grid is formed, to which the electrolysis systems are connected via the central supply line.
Resumen de: US2025266470A1
Electro-energy or electro-synthetic cells whose architectures allow them to be readily stacked into a cell stack. The cells include polymeric cell frames that incorporate within them, functional materials, such as an inter-electrode separator, electrodes, metallic bipolar plates, and the like. For example, an electro-energy or electro-synthetic cell includes a polymeric cell frame, a first electrode and a second electrode, and an inter-electrode separator positioned between the first electrode and the second electrode. A compressive component is positioned adjacent to the first electrode. The compressive component may be a metallic bipolar plate compressive component and/or a metallic porous transport layer compressive component. In one example the polymeric cell frame is sealed to the metallic bipolar plate by a polymer-to-metal join. In another example at least one polymeric structural locating component locates the metallic bipolar plate against the polymeric cell frame. A cell stack includes a plurality of the cells.
Resumen de: US2025262590A1
Proposed is a system for capturing and recycling carbon dioxide and producing hydrogen for a cement manufacturing facility. The system includes a preheater provided with multiple stages of cyclones arranged in series in a vertical direction and configured to receive and preheat a cement raw material, a calciner configured to calcine the cement raw material preheated by the preheater, a kiln configured to burn the cement raw material calcined in the calciner, an exhaust line connected to the cyclones and configured to discharge an exhaust gas respectively discharged from the calciner and the kiln to the outside, a reactor configured to capture carbon dioxide in the exhaust gas, to collect a reactant containing the captured carbon dioxide, and to separate a carbon dioxide reactant and a waste solution in the reactant, and a hydrogen generator configured to generate hydrogen gas by receiving the separated carbon dioxide from the reactor.
Resumen de: AU2024219118A1
The present application relates to a flow field for use in an electrolysis cell comprising one or more sheets of porous material with a corrugated structure. The electrolysis cell comprises a membrane, an anode, a cathode, an anode reinforcement layer, a cathode reinforcement layer, an anode flow field, a cathode flow field, and a bipolar plate assembly comprising an embedded hydrogen seal. The anode flow field comprises one or more porous sheets having at least one straight edge and at least one of the porous sheets has the form of a corrugated pattern with a plurality of peaks and valleys whose axes are generally aligned with one straight edge of the sheet. The anode flow field geometry simultaneously provides resiliency, for efficient mechanical compression of the cell, and well-distributed mechanical support for the anode reinforcement layer adjacent to the anode flow field.
Resumen de: AU2024307301A1
A method and arrangement of performing electrolysis by an electrolyzer includes an operational mode and a partial operational mode. During the operational mode operational power from a main power source (202) to a first (808) and second set of stacks (806). In response to detecting a power insufficient for the first and the second set of stacks (806) to perform electrolysis without impurities, the electrolyzer is set to a partial operational mode, wherein the first set of stacks (808) perform electrolysis without impurities and the second set of stacks (806) do not perform electrolysis.
Resumen de: WO2025172702A1
An apparatus comprising an electrolyser subsystem (20), a Haber Bosch subsystem (22), and an Ostwald subsystem (24), and a method for producing nitric acid. Fluid passageways are configured to: route hydrogen produced by the electrolyser subsystem (20) to the Haber Bosch subsystem (22) via a first path (26) for use in a Haber process at the Haber Bosch subsystem (22) to produce ammonia; route at least a portion of the ammonia produced by the Haber Bosch subsystem (22) to the Ostwald subsystem (24) via a second path (28) for use in an Ostwald process at the Ostwald subsystem (24) to produce nitric acid; and route at least a portion of steam produced using heat from the Ostwald subsystem (24) to the electrolyser subsystem (20) via a third path (30) for use as at least a part of an infeed gas for the electrolyser subsystem (20).
Resumen de: WO2025172046A1
The invention relates to a method for operating an electrolyzer (1) comprising an anode chamber (3) and a cathode chamber (5), in which water (H2O) is supplied as a reactant and hydrogen (H2) and oxygen (O2) are generated as product gases. On the anode side, the oxygen product gas, which also contains hydrogen as a foreign gas, is generated in a product flow out of the anode chamber (3) and is introduced into a horizontal anode-side collecting line (7) having a surrounding wall (11) and is removed via the collecting line (7), wherein water (H2O) is sprayed onto an inner surface of the surrounding wall (11) of the collecting line (7) so that the surrounding wall (11) is wetted with water and the inner surface is inerted. The invention additionally relates to an electrolyzer (1), in particular for carrying out the method.
Resumen de: WO2025174971A1
A method can include coupling sulfur dioxide depolarized electrolysis (e.g., electrochemical oxidation of sulfur dioxide to sulfuric acid with electrochemical reduction of water to hydrogen) with the contact process to facilitate formation of high concentration sulfuric acid with concurrent hydrogen production. The sulfuric acid and hydrogen can optionally be used cooperatively for downstream processes (e.g., metal extraction from ore, fertilizer production, hydrocarbon processing, etc.).
Resumen de: WO2025173297A1
A water splitting device for generating hydrogen when irradiated with light, said water splitting device comprising: an electrolytic bath that is filled with an electrolytic solution; and a water splitting cell that is immersed in the electrolytic solution and comprises a laminate in which an anode, a hole transport layer, a Perovskite battery cell, an electron transport layer, and a cathode have been laminated in the given order, and an electrically insulating protective material which covers the outer periphery of the laminate.
Resumen de: WO2025171442A1
The invention is directed to methods of electrolysis and cells used for the same. The method comprising generating and delivering a humidified gas stream or liquid water to an electrolysis cell comprising an anode side, a cathode side and an ion permeable membrane located between them wherein the anode side has a first catalytic layer and the cathode side has a second electrolytic layer, contacting the humidified gas stream or liquid water with the first catalytic layer and contacting a portion of the ion- permeable membrane on the cathode side with liquid water, applying a voltage such that oxygen gas is generated at the anode and hydrogen gas is generated at the cathode. The invention is also related to an electrolytic cell for performing the methods and a kit that allows for retrofitting existing cells to perform the methods.
Resumen de: US2025263859A1
A method of producing hydrogen and/or bromine by electrolysing hydrogen bromide using a fluoropolymer membrane having a glass transition temperature Tg≥110° C. in an electrolysis of hydrogen bromide, wherein the hydrogen bromide stems from a sulfuric acid synthesis.
Resumen de: US2025263853A1
A control device includes a controller that controls a first power supplier structured to supply power to an electrolytic bath for generating an organic compound and a second power supplier different from the first power supplier and structured to supply power to the electrolytic bath. The controller controls the second power supplier based on a change in a voltage between a cathode electrode and an anode electrode provided in the electrolytic bath to a specified voltage, a change in a potential of the cathode electrode to a specified potential ECA1, or a change in a potential of the anode electrode to a specified potential EAN1.
Resumen de: US2025263844A1
A system for hydrogen recovery includes a dryer having an inlet that may be fluidly connected to a hydrogen outlet of a hydrogen generator, a hydrogen using device having an inlet fluidly connected to a dry hydrogen outlet of the dryer, and one or more conduits fluidly connecting a wet hydrogen outlet from the dryer and an impure hydrogen exhaust outlet of the hydrogen using device to the inlet of the dryer.
Resumen de: US2025263846A1
To provide a water electrolysis stack capable of suppressing deterioration in sealability. A water electrolysis stack configured by laminating a plurality of water electrolysis cells to generate hydrogen by supplying water to the water electrolysis cell and applying electric power, wherein a laminated member for improving sealing property, which is a member that does not introduce water therein, is laminated at a predetermined position of the water electrolysis cell to be laminated.
Resumen de: US2025263850A1
A polymer electrolyte membrane (PEM) electrolytic cell assembly, and a method for making the assembly, are provided. An exemplary method includes forming a functionalized zeolite templated carbon (ZTC), including forming a CaX zeolite, depositing carbon in the CaX zeolite using a chemical vapor deposition (CVD) process to form a carbon/zeolite composite, treating the carbon/zeolite composite with a solution including hydrofluoric acid to form a ZTC, and treating the ZTC to add catalyst sites, forming the functionalized ZTC. The method further includes incorporating the functionalized ZTC into electrodes, forming a membrane electrode assembly (MEA), and forming the PEM electrolytic cell assembly. The method further includes coupling the PEM electrolytic cell assembly to a heat source.
Resumen de: US2025263849A1
A method of electrolysing hydrogen bromide comprising the steps i) brominating a hydrocarbon 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, wherein the hydrogen bromide fed in step iii) and/or the hydrogen bromide fed in step iv) is hydrogen bromide produced in step i).
Resumen de: US2025263845A1
The invention relates to a method and an apparatus for the production of hydrogen from a hydrogen-containing substance by splitting the hydrogen-containing substance into its components, wherein the hydrogen-containing substance is stimulated by means of an electromagnetic wave generator. The electromagnetic wave generator emits energy at the resonant frequency of an atomic bond of the hydrogen-containing substance. According to the invention, it is provided that the splitting of the hydrogen-containing substance takes place in an electromagnetic resonator.
Resumen de: US2025263302A1
The present invention describes an improved catalytic reactor system with an improved catalyst that transforms CO2 and low carbon H2 into low-carbon syngas with greater than an 80% CO2 conversion efficiency, resulting in the reduction of plant capital and operating costs compared to processes described in the current art. The inside surface of the adiabatic catalytic reactors is lined with an insulating, non-reactive surface which does not react with the syngas and effect catalyst performance. The improved catalyst is robust, has a high CO2 conversion efficiency, and exhibits little or no degradation in performance over long periods of operation. The low-carbon syngas is used to produce low-carbon fuels (e.g., diesel fuel, jet fuel, gasoline, kerosene, others), chemicals, and other products resulting in a significant reduction in greenhouse gas emissions compared to fossil fuel derived products.
Resumen de: US2025263361A1
The present invention relates to a process for producing dimethyl ether (DME) and hydrogen (H2) from methane, comprising the steps of: a) providing a gaseous feed stream comprising methane; b) reacting said gaseous feed stream with at least one halogen reactant (X2), under reaction conditions effective to produce an effluent stream comprising methyl halide (MeX), and hydrogen halide (HX); c) separating from the effluent stream obtained in step b): (i) a methyl halide (MeX) stream; and, (ii) a hydrogen halide (HX) stream; d) reacting the methyl halide (MeX) stream separated in step c) with a solid metal oxide (MO(s)) under reaction conditions effective to produce metal halide (MX) and dimethyl ether (DME); and e) decomposing by means of electrolysis said hydrogen halide (HX) stream separated in step c) under conditions effective to produce a gaseous hydrogen (H2) stream and a stream comprising halogen reactant (X2).
Resumen de: US2025263349A1
The invention relates to a process, catalysts, materials for conversion of renewable electricity, air, and water to low or zero carbon fuels and chemicals by the direct capture of carbon dioxide from the atmosphere and the conversion of the carbon dioxide to fuels and chemicals using hydrogen produced by the electrolysis of water.
Resumen de: US2025263322A1
Methods, systems and devices for PFAS destruction including adding a sulfite salt to an aqueous solution containing PFAS and then irradiating the aqueous solution with light at 222 nm. The method may include adding a base to the aqueous solution in an amount sufficient to raise a pH of the aqueous solution including PFAS to about 10 or more. It may also include adding a halide salt such as a bromide salt or an iodine salt, and further adding a carbonate. Greater than 90%, or greater than 99%, of the PFAS in the solution may be destroyed by irradiating the aqueous solution in this way.
Resumen de: US2025263294A1
Ammonia, methanol, Fischer Tropsch products, and derivatives thereof are made by using hydrogen and oxygen supplied from an electrolyzer that is at least partially powered by renewable power, resulting in green process and systems that produce green products disclosed herein. A process using biomass and renewable energy includes producing an unshifted syngas from biomass and oxygen in a gasification unit, introducing water into an electrolyzer to produce an oxygen product and a hydrogen product, and introducing the oxygen product to the gasification unit. The electrolyzer is powered by renewable energy, and the oxygen product supplies at least a portion of the oxygen to the gasification unit.
Resumen de: EP4603181A1
The invention provides a novel and efficient catalyst for HER composed of Ru nanoparticles dispersed over a support consisting of titanium oxynitride and high surface area carbon material, such as graphene oxide, (TiON-C) with a particularly low Ru loading of only 6 wt.%. In an alkaline electrolyte, the Ru/TiON-C composite significantly surpasses the HER performance of the Ru/C analog. More importantly, Ru/TiON-C is both intrinsically (nearly 3 times higher turnover frequency) and practically (4 times higher mass activity) better performing HER catalyst than the commercial Pt/C benchmark.
Nº publicación: EP4601791A1 20/08/2025
Solicitante:
UOP LLC [US]
UOP LLC
Resumen de: AU2023390125A1
Catalyst ink formulas for the preparation of CCMs are described. The catalyst ink formulas comprise a catalyst, an ionomer, a solvent, and a porogen soluble in the solvent. The catalyst ink formula may also comprise an additive, such as an electron conductive polymer. The anode catalyst coating layer or both the anode and the cathode catalyst coating layers prepared from the catalyst ink formula comprises uniformly distributed nanopores that allow easy gas removal and uniform water feed distribution, which will avoid or reduce the direct energy losses for the electrolyzers. Catalyst coated membranes and methods of making a catalyst coated membranes are also described.
BOPI
Sede Electrónica
