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: 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: 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: US2024309527A1
A method for operating a water electrolyzer includes applying a voltage to a water electrolysis cell such that a current having a target current value flows through the water electrolysis cell and stopping the current that flows through the water electrolysis cell upon a voltage applied to the water electrolysis cell being increased to a predetermined threshold value or more when a water electrolysis reaction is performed.
Resumen de: US2024309283A1
A method of charging and/or discharging energy in reusable fuel workpieces or particles includes a solar furnace with counter-flowing workpieces and gas, to exchange heat therebetween, with the exiting gas and workpieces being at about ambient temperature. A further aspect employs a production plant including a reduction reactor configured to use excess electrical energy generated by renewable power generators to charge and/or discharge solid-state thermochemical fuel. Another aspect includes a fuel flow control valve using air pulses. An oxygen-deprived and reusable fuel, such as magnesium manganese oxide, or magnesium iron oxide, is also provided. In another aspect, an apparatus for producing a solid-state fuel includes a reduction reactor including a reactor chamber configured to receive concentrated solar energy, and a reactor tube having a recuperation zone, a reduction zone, and a quenching zone, wherein the reduction zone passes through the reactor chamber. A discharged solid-state fuel is configured to be fed down the reactor tube and a low-oxygen gas is configured to flow up the reactor tube.
Resumen de: US2024309293A1
Provided is an integrated process for obtaining chemicals from renewable organic material by hydrotreatment including the steps of feeding the renewable organic material into at least one pre-treatment unit for removing any material not suitable as feedstock for subsequent hydrotreatment, feeding the pre-treated organic material from the at least one pre-treatment unit to at least one hydrotreatment unit for providing gas-oil like hydrocarbons from the pre-treated organic material in the presence of hydrogen and a catalyst, feeding the gas-oil like hydrocarbons from the at least one hydrotreatment unit into at least one steam cracker furnace unit for thermal cracking for providing a cracked product mixture; and feeding the cracked product mixture into at least one steam cracker fractionation unit for separating the cracked product mixture into high value chemicals in particular ethylene, propylene, butadiene and BTX aromatics, hydrogen, fuel gas and fuel oil.
Resumen de: US2024309526A1
An electrode including a transparent substrate and a layer of a perovskite-based nanocomposite (PTNC) material at least partially covering a surface of the transparent substrate. The PTNC material includes gold (Au) nanoparticles, graphitic carbon nitride (g-C3N4) nanoparticles, and perovskite-based nanoparticles through synergistic interaction. A method of making the electrode is described.
Resumen de: US2024309521A1
A system for electrolysis power conversion includes electrolyser cells arranged as controllable series connected cell groups, a unit for electrolysis operation at a first voltage in the range of 1.0-2.5V per cell and a unit for at least intermittently drawing current from the cell groups at a second voltage at 0.4-1.0V per cell. The system includes at least one capacitor bank maintained at the first voltage and a capacitor bank maintained at the second voltage, the capacitor banks and cell groups having one pole in common and a bidirectional non-isolating DC/DC converter for connecting the first and second voltage capacitor banks. The system further includes a controller for the first and second voltages levels and a half-bridge switch pair for each controllable cell group for individually alternating between the first and second voltage levels being applied to the cell groups to prevent escalating unbalances and cell degradation.
Resumen de: US2024309505A1
A diamond manufacturing system comprises: a hydrogen gas manufacturing apparatus that manufactures hydrogen gas by electrolyzing water using electric power; a methane gas manufacturing apparatus that synthesizes the hydrogen gas manufactured by the hydrogen gas manufacturing apparatus and carbon dioxide; a hydrogen gas flow rate control valve that controls flow rate of the hydrogen gas from the hydrogen gas manufacturing apparatus; a methane gas flow rate control valve that controls flow rate of the methane gas from the methane gas manufacturing apparatus; and a diamond manufacturing apparatus that manufactures diamond using the hydrogen gas and the methane gas whose flow rates are controlled by the hydrogen gas flow rate control valve and the methane gas flow rate control valve.
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: 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: 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: 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: 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: 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.
Resumen de: WO2023086972A1
A process and system for generating hydrogen gas are described, in which water is electrolyzed to generate hydrogen and oxygen, and a feedstock including oxygenate(s) and/or hydrocarbon(s), is non-autothermally catalytically oxidatively reformed with oxygen to generate hydrogen. The hydrogen generation system in a specific implementation includes an electrolyzer arranged to receive water and to generate hydrogen and oxygen therefrom, and a non-autothermal segmented adiabatic reactor containing non-autothermal oxidative reforming catalyst, arranged to receive the feedstock, water, and electrolyzer-generated oxygen, for non-autothermal catalytic oxidative reforming reaction to produce hydrogen. The hydrogen generation process and system are particularly advantageous for using bioethanol to produce green hydrogen.
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: EP4431639A1
A hydrogen generator with self-sterilization function comprises an electrolysis module, a hydrogen water cup, an integrated channel device and an automatic diversion device. The electrolysis module is configured to electrolyze electrolytic water to generate the gas comprising hydrogen. The hydrogen water cup is configured to accommodate liquid and inputting the gas comprising hydrogen into the liquid to generate the liquid comprising hydrogen. The integrated channel device is stacked above the electrolysis module and comprises a gas input channel, a gas output channel, and a gas flow channel. The automatic diversion device is configured for selectively connecting the gas input channel, the hydrogen water cup and the gas output channel or selectively connecting the gas input channel, the gas flow channel and the gas output channel. Wherein, the pH value of the electrolytic water in the electrolysis module is in a range between 12-14.
Resumen de: TW202332109A
An electrochemical system includes fuel cell or electrolyzer modules, and a skid supporting the modules.
Resumen de: EP4431642A1
A membrane and a composite membrane with excellent durability, which enable the manufacture of a water electrolysis device with high water electrolysis performance, a membrane electrode assembly and a water electrolysis device including the membrane are provided. The membrane includes a fluoro compound having an ionic group, has OH<sup>-</sup> ion conductivity, and has a conductivity of more than 2 × 10<sup>-2</sup> S/cm.
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.
Nº publicación: EP4431638A1 18/09/2024
Solicitante:
PANASONIC IP MAN CO LTD [JP]
Panasonic Intellectual Property Management Co., Ltd
Resumen de: EP4431638A1
A compression apparatus includes an electrolyte membrane, an anode disposed on a principal surface of the electrolyte membrane, a cathode disposed on another principal surface of the electrolyte membrane, and a voltage applicator that applies a voltage between the anode and the cathode. Upon the voltage applicator applying a voltage between the anode and the cathode, the compression apparatus causes protons extracted from an anode fluid fed to the anode to move to the cathode through the electrolyte membrane and produces compressed hydrogen. The compression apparatus includes a face seal disposed on an outer periphery of the anode and an elastic material interposed between the anode and the face seal.