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793
resultados
Última actualización
27/09/2024 [08:40:00]
Resumen de: US2024318322A1
The disclosure relates to a system for carrying out electrolysis to produce oxygen and hydrogen. Said system comprises at least two electrolysis devices, and these electrolysis devices can be supplied with an electrolyte by a common electrolyte supply device. Furthermore, these electrolysis devices each have an electrolyte inlet and an electrolyte outlet, which electrolyte inlets and electrolyte outlets are coupled to the common electrolyte supply device to provide an electrolyte stream through each of the electrolysis devices. The system also comprises at least one electronic control device and at least one flow state detection device to detect the flow states of the electrolyte stream through at least one of the electrolysis devices. The control device is designed to control at least one actuator to influence the electrolyte stream through at least one of the electrolysis devices using detection values from the at least one flow state detection device.
Resumen de: US2024322209A1
An electrochemical reactor adapted to produce hydrogen on demand, including: a device for storing and supplying hydrogen, which includes: a solid-phase metal M layer, and an aqueous liquid electrolyte € adapted to oxidise the layer of a metal solid-phase M; a main chamber; a control device, adapted to ensure a relative movement between the electrolyte and the metal M layer so as to be able to present the following two configurations: a withdrawal configuration wherein there is a separation between the electrolyte and the metal M layer; and a contact configuration in which there is contact between the electrolyte and the metal M layer in the main chamber.
Resumen de: US2024322738A1
Disclosed is a power system combining photovoltaic power generation and hydrogen power generation, including: a building, a photovoltaic power generation device being installed on an upper end surface of the building, and a first inverter being installed on an output end of the photovoltaic power generation device through a connecting line; a water electrolysis hydrogen production equipment being installed inside a building, a first hydrogen storage tank being installed on one side of the building, a second hydrogen storage tank being installed on the other side of the building, and an oxygen storage tank being connected to an output end of the water electrolysis hydrogen production equipment through a pipeline. In the disclosure, there is no need to provide a special storage battery to store the electricity generated by photovoltaic power generation.
Resumen de: MX2024005951A
The present invention is generally directed to a reactor for the production of low-carbon syngas from captured carbon dioxide and renewable hydrogen. The hydrogen is generated from water using an electrolyzer powered by renewable electricity or from any other method of low-carbon hydrogen production. The improved catalytic reactor is energy efficient and robust when operating at temperatures up to 1800°F. Carbon dioxide conversion efficiencies are greater than 75% with carbon monoxide selectivity of greater than 98%. The catalytic reactor is constructed of materials that are physically and chemically robust up to 1800°F. As a result, these materials are not reactive with the mixture of hydrogen and carbon dioxide or the carbon monoxide and steam products. The reactor materials do not have catalytic activity or modify the physical and chemical composition of the conversion catalyst. Electrical resistive heating elements are integrated into the catalytic bed of the reactor so that the internal temperature decreases by no more than 100°F from the entrance at any point within the reactor. The catalytic process exhibits a reduction in performance of less than 0.5% per 1000 operational hours.
Resumen de: US2023382823A1
A method, a system, and an apparatus of certain embodiments are provided to recover water and carbon dioxide from combustion emissions. The recovery includes, among other things, electrolysis and carbon dioxide capture in a suitable solvent. The recovered water and carbon dioxide are subject to reaction, such as a catalytic methanation reaction, to generate at least methane.
Resumen de: EP4435146A2
An electrode structure includes an electrolyte membrane, a catalyst layer (61), a porous layer (62), and an ionomer layer (63). The catalyst layer (61) is formed on a surface of the electrolyte membrane. The porous layer (62) is stacked on an external side of the catalyst layer (61). The ionomer layer (63) is interposed between the catalyst layer (61) and the porous layer (62). Thus, it is possible to reduce electrical contact resistance between the catalyst layer (61) and the porous layer (62).
Resumen de: WO2023088749A2
The present disclosure relates to an electrolysis system (200) for generating hydrogen, the system comprising an electrolyser (202) comprising an electrolyte water inlet, a first gas outlet (204) and a second gas outlet (206), an electrical generator (212) configured to generate electricity (212), preferably for the electrolyser, said electrical generator (212) being connected to the first and/or second gas outlet (204, 206) of the electrolyser and configured to be powered, at least in part, by gas flow provided via the first and/or second gas outlet, the system further comprising an electrolyte pump (214) for supplying the electrolyser (202) with electrolyte water, wherein the electrical generator (212) is a motor -generator comprising a first mode for generating electricity and a second mode for using electricity to drive the electrolyte pump (214).
Resumen de: CN118284720A
The invention relates to an electrochemical cell (0) comprising a negative electrode (1), a positive electrode (2) and an anion-conducting membrane (3) between the negative electrode (1) and the positive electrode (2). The invention also relates to the use of the cell (0) in a method for producing hydrogen (H2) and oxygen (O2) by electrochemical decomposition of water (H2O). The invention further relates to an electrolytic cell (6, 8) comprising a plurality of cells (0) and to a method for producing an electrolytic cell (6, 8). The aim of the invention is to provide an electrochemical cell (0) by means of which water decomposition on the basis of an anion exchange membrane can be carried out on an industrial scale. The invention also aims to reduce the production cost of the battery and efficiently prepare hydrogen and oxygen in an energy-saving manner. This object is achieved in that at least a portion of the negative electrode is in the form of a first textile comprising a catalytically active textile thread structure, and the first textile is in direct contact with the membrane.
Resumen de: CN118266105A
The invention relates to the production of electrochemically active layered bodies, in particular electrochemically active layered bodies obtained by such a production method, and to an electrochemical cell comprising at least one such layered body. The invention also relates to a dispersion for producing a layered body. The problem addressed by the invention is that of producing alternative ionomers that can be used to produce electrochemically active lamellas. The present invention is based on the concept of processing ionomers in dispersions and using the dispersions to produce catalytically active layered bodies for electrochemical cells.
Resumen de: WO2023091026A1
A system for producing hydrogen and oxygen through electrolysis using power from a geothermal power plant for production of electricity. The geothermal power plant is located proximity to the electrolysis plant. The geothermal power plant provides the said electrolysis plant with electricity, water, and steam. The plants Are located over wells offshore and built on former offshore oil and gas production platforms.
Resumen de: EP4434934A1
A method for preparing hydrogen from ammonia by using pressure swing adsorption (PSA) is provided. The method for preparing hydrogen from ammonia, of the present invention, comprises the steps of: generating hydrogen and nitrogen from ammonia gas through a high-temperature reaction by using a catalyst; performing purification by selectively adsorbing unreacted ammonia gas from a gas containing unreacted ammonia and low-purity hydrogen and nitrogen, which are supplied through the high-temperature reaction and cooled; and performing purification by separating high-purity hydrogen from the gas consisting of low-purity hydrogen and nitrogen, wherein purification is carried out by using a carbon molecular sieve (CMS) adsorbent so as to desorb the unreacted ammonia gas through PSA.
Resumen de: MX2024005764A
Provided herein are systems and methods for controlling production of low-carbon liquid fuels and chemicals. In an aspect, provided herein is a method controlling a process that produces e-fuels. In another aspect, provided herein is a system for producing an e-fuel from constituent ingredients H2 and CO2, with H2 produced via electrolysis powered by renewable electrical energy.
Resumen de: CN117842933A
The invention relates to the field of hydrogen freezing water removal, in particular to a high-pressure low-temperature water removal device for hydrogen production through water electrolysis. According to the scheme, the first condenser, the second condenser and the third condenser are connected in series according to different sequences to form the first U-shaped freezing water removal channel and the second U-shaped freezing water removal channel which are opposite in direction; when the first condenser and the third condenser with relatively low working temperature are frosted, the first condenser and the third condenser can be conveniently switched to a freezing water removal passage in the other direction, the frosted condenser is defrosted by utilizing heat of high-pressure hot saturated hydrogen, and meanwhile, the condenser can also play a role in preliminarily cooling the high-pressure hot saturated hydrogen; therefore, frosting in the condenser pipeline can be effectively prevented and eliminated, and continuous and stable flow of hydrogen is ensured.
Resumen de: CN117940662A
A hydroelectric energy system according to the present disclosure includes a retaining ring structure including a retaining ring base and a retaining ring backing. The system also includes a rotating ring structure including a rotating ring base and a blade support ring disposed radially outward of the rotating ring base. The rotating ring base is disposed radially outward of the fixed ring base and is configured to rotate around the stationary ring base about an axis of rotation. The system also includes at least one bearing mechanism configured to support the rotating ring structure relative to the stationary ring structure during rotation of the rotating ring base about the stationary ring base. During rotation, the stationary ring backing is configured to be in compression and support the stationary ring base, the rotating ring base, and the vane support ring in a stacked configuration within the fluid flow.
Resumen de: WO2023088749A2
The present disclosure relates to an electrolysis system (200) for generating hydrogen, the system comprising an electrolyser (202) comprising an electrolyte water inlet, a first gas outlet (204) and a second gas outlet (206), an electrical generator (212) configured to generate electricity (212), preferably for the electrolyser, said electrical generator (212) being connected to the first and/or second gas outlet (204, 206) of the electrolyser and configured to be powered, at least in part, by gas flow provided via the first and/or second gas outlet, the system further comprising an electrolyte pump (214) for supplying the electrolyser (202) with electrolyte water, wherein the electrical generator (212) is a motor -generator comprising a first mode for generating electricity and a second mode for using electricity to drive the electrolyte pump (214).
Resumen de: US2024075728A1
A method for producing a new electrolyzer by arranging an electrode for electrolysis and a new membrane in an existing electrolyzer. The method includes a releasing process (A2) of releasing an integration of an anode frame and a cathode frame to expose a membrane, a removing process (B2) of removing the membrane after the releasing process (A2) and arranging the electrode for electrolysis and new membrane on the anode or cathode, and an integrating process (C2) of integrating the anode frame and the cathode frame to store the anode, the cathode, the membrane, the electrode for electrolysis, and the new membrane into the electrolytic cell frame.
Resumen de: WO2024192261A1
An electrochemical cell comprises a first electrode configured for a first electrochemical half reaction, a first electrolyte solution in contact with the first electrode, a second electrode configured for a second electrochemical half reaction, a second electrolyte solution in contact with the second electrode, a separator positioned between the first electrode and the second electrode, and a first porous layer in contact with the first electrode, wherein the first porous layer is infused with a first specified solution comprising a first reactant for the first electrochemical half reaction.
Resumen de: WO2024189233A1
A method for generating and treating a two-phase outflow from one or more pressurised electrolyser stacks which are adapted to electrolyse water into hydrogen and oxygen, whereby a pump supplies a catholytic fluid flow from one first gas liquid gravitational separator vessel to the electrolyser stacks and whereby a further pump supplies an anolytic fluid flow from one second gas liquid gravitational separator vessel to the electrolyser stacks, and whereby at least one cyclone type gas liquid separator receives combined outflows from the catholytic chambers and/or receives combined outflows from anolytic chambers respectively inside corresponding gravitational gas liquid separator vessel whereby further, the at least one cyclone type gas liquid separator separates the gas from the liquid along a generally horizontal cyclonic rotation axis inside the gas liquid gravitational separator vessel. An electrolyser system is also provided.
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: 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: US2024309522A1
A vanadium oxide-based electrode for electrochemical water splitting that includes a metallic substrate and a layer of particles of a vanadium oxide composite at least partially covering a surface of the metallic substrate. The particles of the vanadium oxide composite are in the form of nanobeads having an average particle size of 50 to 400 nm. A method of making the electrode.
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: 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: 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.
Nº publicación: US2024309527A1 19/09/2024
Solicitante:
PANASONIC INTELLECTUAL PROPERTY MAN CO LTD [JP]
Panasonic Intellectual Property Management Co., Ltd
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.
BOPI
Sede Electrónica
