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540
resultados
Última actualización
29/12/2025 [06:56:00]
Resultados 25 a 50 de 540
Resumen de: AU2024265029A1
A system and method for transporting and distributing hydrogen, reducing the risk of hydrogen leakage, maintaining a record of provenance, and measuring and recording its purity level as it flows from source to destination to assure it complies with a predetermined range of values. The system includes a hydrogen delivery line made from metallic or non-metallic pipe that may be placed inside a safety pipe such that a channel is formed between an exterior of the hydrogen delivery line and an interior of the safety pipe. A sweeper gas or liquid may be injected into the channel to purge any hydrogen that might escape from the hydrogen delivery line, and one or more sensors may be used to detect and avoid the presence of an unacceptable level of hydrogen, or to stop the flow of hydrogen and remediate the problem well before a safety or environmental risk can occur.
Resumen de: AU2024278486A1
The present disclosure provides a water electrolysis membrane electrode, a method for preparing the water electrolysis membrane electrode, and a water electrolyzer applying the water electrolysis membrane electrode. The water electrolysis membrane electrode includes a cathode gas diffusion layer, a cathode catalytic layer, an anion exchange membrane, a hydrophobic anode catalytic layer, and an anode gas diffusion layer that are stacked in sequence. Raw materials for preparing the hydrophobic anode catalytic layer include an anode catalyst, a hydrophobic material, and an anode ionomer. A mass ratio of the anode catalyst, the hydrophobic material, and the anode ionomer is 10:1- 3:1-3. A porosity of the hydrophobic anode catalytic layer is 10%-40%. The present disclosure provides a water electrolysis membrane electrode, a method for preparing the water electrolysis membrane electrode, and a water electrolyzer applying the water electrolysis membrane electrode. The water electrolysis membrane electrode includes a cathode gas diffusion layer, a cathode catalytic layer, an anion exchange membrane, a hydrophobic anode catalytic layer, and an anode gas diffusion layer that are stacked in sequence. Raw materials for preparing the hydrophobic anode catalytic layer include an anode catalyst, a hydrophobic material, and an anode ionomer. A mass ratio of the anode catalyst, the hydrophobic material, and the anode ionomer is 10:1- 3:1-3. A porosity of the hydrophobic anode catalytic layer
Resumen de: AU2024282746A1
Porous membrane, its method of production, and an alkaline electrolyzer with such membrane A porous membrane for alkaline water electrolysis is produced by a mix of a polymer, an alkoxide of an inorganic metal as a precursor for conversion into hydrophilic metal oxide or metal hydroxide particles, and a stabilizing agent for suppressing agglomera- tion of metal oxide or metal hydroxide particles during conversion of the precursor. The mix is cast as a layer on a support and exposed to nonsolvent-induced phase separation, NIPS, for converting the precursor in the layer into metal oxide particles or metal hy- droxide particles by hydrolyzing the precursor. The resulting membranes performed well in alkaline electrolysis.
Resumen de: AU2024280354A1
An eFuels plant and process for producing synthetic hydrocarbons using renewable energy are disclosed. The eFuels plant comprises a hydrocarbon synthesis (HS) system and a renewable feed and carbon/energy recovery (RFCER) system. The RFCER comprises an electrolysis unit to convert water to hydrogen and oxygen. The hydrogen and carbon dioxide are fed to the HS system to produce synthetic hydrocarbon products. The process further comprises a thermal desalination unit, a direct air capture unit, an oxygen-fired heater, a steam turbine generator, a heat recovery unit, anaerobic and/or aerobic wastewater treatment, or a combination thereof. Process streams of and heat generated in the HS and RFCER systems are integrated to improve energy, hydrogen, and carbon efficiency and maintain stable operations during power fluctuations to the eFuels plant.
Resumen de: CN120604367A
There is provided a multi-layer proton exchange membrane for water electrolysis, comprising: at least two reconstitution catalyst layers, each of which comprises a reconstitution catalyst and a first ion exchange material, and at least two reinforcement layers, each of which comprises a reconstitution catalyst and a second ion exchange material, wherein the at least two reconstitution catalyst layers are separated by regions free of or substantially free of reconstitution catalyst, each of the at least two reinforcement layers comprising a microporous polymer structure and a second ion exchange material at least partially absorbed within the microporous polymer structure.
Resumen de: WO2025259900A1
A system and method for generating hydrogen using thermal energy in a geothermal fluid are disclosed. An electrical power generation subsystem is configured to receive geothermal fluid from a geothermal fluid source and use thermal energy in the geothermal fluid to generate electrical power. A steam generation subsystem is configured to receive water and produce steam using thermal energy in the geothermal fluid and the electrical power generated by the electrical power generation subsystem. A hydrogen generation subsystem is configured to disassociate hydrogen from the steam using the electrical power generated by the electrical power generation subsystem.
Resumen de: WO2025259118A1
The present invention is concerned with device that is configured to be administered to the gut digestate of a ruminant animal, which device is capable of generating electrical energy from a gut digestate and/or measuring the concentration of hydrogen (H2) and/or oxygen (O2) that is present in the gut digestate. Further, the device according to the present invention may be modified to include an electrical load adjustment means (e.g. resistor, variable resistor etc) which may be used to adjust the electrical load of the device sufficient to cause the prescribed removal of H2, and in particular dissolved hydrogen (dH2), from the gut digestate. As such the device according to the present invention may be employed to adjust the amount of dH2 available to methanogenic archaea while at least not compromising animal productivity, thereby reducing the amount of methane released in the atmosphere which has an important environmental impact in terms of reducing greenhouse gas emissions.
Resumen de: WO2025258318A1
Provided are: a stack (10, 80) with which it is possible to ensure a flow of gas between a passage and a cell; a hot module (71); and a hydrogen production device (70). This stack comprises: cells (30) including an electrolyte (31) that isolates a fuel electrode (32) and an air electrode (33) from each other in the thickness direction; first separators (27) fixed to the cells; inter-connectors (34) in contact with the air electrodes; second separators (29) fixed to the inter-connectors; electrically insulating frames (28) disposed between the first separators and the second separators; and gas passages (24, 25) extending in the thickness direction of the first separators, the frames, and the second separators. The passages are connected to spaces (37) between the first separators and the second separators. The stack also comprises insulators (50) disposed between the passages and the cells within the spaces. The spaces in which the insulators are disposed each include a gas passage part (52) through which gas passes between the passages and the cells.
Resumen de: WO2025257961A1
This porous metal body sheet is formed of a porous metal body having a skeleton assuming a three-dimensional network structure. The porous metal body sheet has a first main surface and a second main surface on the opposite side to the first main surface. The first main surface includes a first inclined peripheral edge region, a second inclined peripheral edge region opposite to the first inclined peripheral edge region, and a central region between the first inclined peripheral edge region and the second inclined peripheral edge region. The first inclined peripheral edge region and the second inclined peripheral edge region are set apart from each other in a first direction. The first inclined peripheral edge region and the second inclined peripheral edge region each extend along a second direction intersecting the first direction, and are inclined so as to approach the second main surface as the distance from the central region increases in the first direction.
Resumen de: WO2025257962A1
This porous metal sheet is formed of a porous metal having a skeleton with a three-dimensional network structure. The porous metal sheet has a main surface in which a plurality of grooves are formed. An upper chamfer is formed on the upper corner of each of the plurality of grooves. A lower chamfer is formed on the lower corner of each of the plurality of grooves.
Resumen de: WO2025256113A1
Disclosed in the present invention are a hydrogen production and dissolution control method and system, a computer device, and a storage medium. The method comprises: controlling an electrolytic cell to perform a water electrolysis operation; controlling a separation and purification mechanism to perform gas-liquid separation and hydrogen purification on hydrogen prepared by means of the electrolytic cell, so as to obtain purified hydrogen; controlling a booster to pressurize the purified hydrogen and then input same into a reaction tank; acquiring in real time a pressure signal in the reaction tank detected by a pressure sensor; and when the pressure signal satisfies a preset pressure threshold range, controlling an ultrasonic generator in the reaction tank to perform a hydrogen dissolution operation and timing, and when the hydrogen dissolution operation time is equal to a preset operation threshold, controlling the ultrasonic generator and the booster to stop operating. The present invention enables gas-liquid separation and hydrogen purification of the hydrogen prepared by means of the electrolytic cell, and uses ultrasonic vibration to perform a hydrogen dissolution operation on the hydrogen in a high-pressure environment, thereby achieving a rapid hydrogen dissolution operation and high hydrogen dissolution efficiency and dissolved hydrogen content.
Resumen de: WO2025255634A1
A method of producing green iron, the method including the step of using renewable electricity and hydrogen to convert iron ore into iron. The renewable electricity may be produced by solar and/or wind generation. The hydrogen may be in the form of green hydrogen. The method may produce less than 50 kg of carbon dioxide per tonne of iron produced.
Resumen de: US2025382712A1
A system and method for generating hydrogen using thermal energy in a geothermal fluid are disclosed. An electrical power generation subsystem is configured to receive geothermal fluid from a geothermal fluid source and use thermal energy in the geothermal fluid to generate electrical power. A steam generation subsystem is configured to receive water and produce steam using thermal energy in the geothermal fluid and the electrical power generated by the electrical power generation subsystem. A hydrogen generation subsystem is configured to disassociate hydrogen from the steam using the electrical power generated by the electrical power generation subsystem.
Resumen de: US2025382531A1
A first aspect of the invention relates to a process for production of a stabilized hydrocarbon product from solid feedstock, said method comprising the steps of, providing a solid feedstock for thermal decomposition, directing said solid feedstock for thermal decomposition to a thermal decomposition process to provide a fluid product of thermal decomposition and a solid phase, directing as raw feedstock at least an amount of said fluid product of thermal decomposition and an amount of hydrogen to contact a material catalytically active in hydrogenation of conjugated diolefinic carbon-carbon bonds under active conditions for hydrogenation of conjugated diolefinic carbon-carbon bonds, characterized in the ratio between hydrogen and raw feedstock is from 1 Nm3/m3 to 100 Nm3/m3. This has the associated benefit of such a process requiring only a low amount of hydrogen, while still providing a stabilized hydrocarbon product for transport.
Resumen de: WO2025256864A1
The invention relates to an electrolysis cell (12) for electrochemically separating water into hydrogen and oxygen, comprising: - an anode-side half-cell (16) for providing the oxygen, - a cathode-side half-cell (18) for providing the hydrogen, and - a separator element (20) between the anode-side half-cell (16) and the cathode-side half-cell (18). According to the invention, the electrolysis cell (12) has - a frame unit (10) having an anode-side frame part (22), on which the anode-side half-cell (16) is provided, and a separate cathode-side frame part (24), on which the cathode-side half-cell (18) is provided, and - at least one first sealing element (26), which is provided between the anode-side frame part (22) and the cathode-side frame part (24).
Resumen de: GB2641804A
An ion-conducting membrane comprises (a) an ion-conducting polymer; and (b) a hydrogen radical scavenger. Also, a method of preventing degradation of an ion-conducting membrane by hydrogen radicals comprises using a material having a rate constant for the reaction with a hydrogen radical (H·) of at least 1 x 107 M-1s-1. The ion-conducting membrane 4 is preferably a proton-exchange membrane and may further comprise a reinforcing layer 5 formed from a porous polymer impregnated with the ion-conducting polymer. Anode 3 and cathode 2 catalyst layers are provided on opposite sides of the membrane to form a catalyst coated membrane for a fuel cell or water electrolyser.
Resumen de: CN120693423A
An electrolyzer system (10) and a method of operating an electrolyzer system (10) comprising an electrolyzer (16) and a metal hydride or adsorption-desorption compressor (24) wherein the electrolyzer (16) has at least one electrolytic cell having a vapor input (22) and at least one gas output. The method comprises supplying steam through a first side of the electrolytic cell at the steam input (22), operating the electrolyzer (16) to decompose a portion of the steam into hydrogen and oxygen in the at least one electrolytic cell, a mixture of the hydrogen and residual steam from a first side of the electrolytic cell is discharged at the at least one gas outlet (18), and the mixture is introduced into the metal hydride or adsorption-desorption compressor (24), and adsorbing the hydrogen in the mixture at a low temperature in the metal hydride or adsorption-desorption compressor (24) to compress the hydrogen, and desorbing the compressed hydrogen from the metal hydride or adsorption-desorption compressor (24). The electrolyzer system (10) is connected to a cold exhaust gas source to operate the cryogenic adsorption.
Resumen de: CN120659910A
The application relates to a flow field for use in an electrolytic cell comprising one or more porous sheets having a corrugated structure. The electrolytic 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 includes one or more porous sheets having at least one straight edge, and wherein at least one of the porous sheets has the form of a corrugated pattern having a plurality of peaks and valleys whose axes are substantially aligned with one straight edge of the sheet. The anode flow field geometry simultaneously provides elasticity for efficient mechanical compression of the cell and well distributed mechanical support for anode reinforcement layers adjacent the anode flow field.
Resumen de: MX2025009259A
A hydrogen generation system includes: a direct current (DC) power supply providing a driver signal, a reactive circuit coupled to the power supply and configured to generate a pulse drive signal from the driver signal, at least one reaction chamber coupled to the reactive circuit and receiving the pulse drive signal wherein the chamber is configured to generate hydrogen from feedstock material utilizing the pulse drive signal, a gas analyzer coupled to the at least one reaction chamber and configured to detect the generated hydrogen, and a control unit coupled to the reactive circuit and to the gas analyzer and configured to control the reactive circuit based on the detected hydrogen. The reaction chamber includes a plurality of positively charged elements and a plurality of negatively charged elements. The elements are composed of non-dis similar metallic material.
Resumen de: WO2024165389A1
The present invention relates to a pyrogenic process for manufacturing metal oxides or metalloid oxides wherein a metal precursor and/or a metalloid precursor is introduced into a flame formed by burning a gas mixture comprising oxygen and hydrogen, wherein at least a part of the hydrogen has been obtained from electrolysis of water or an aqueous solution, using electrical energy, at least a part of which has been obtained from a renewable energy source, and wherein at least a part of the thermal energy of the flame is transferred to a first heat transmission medium by means of at least one exchanger, thereby heating the first heat transmission medium to a maximal temperature in the range between 80 and 150 °C.
Resumen de: US2020190680A1
A composite metal porous body according to an aspect of the present invention has a framework of a three-dimensional network structure. The framework includes a porous base material and a metal film coated on the surface of the porous base material. The metal film contains titanium metal or titanium alloy as the main component.
Resumen de: US2024154496A1
A system includes a flow-through electric generator and an electrolytic cell. The flow-through electric generator includes a turbine wheel, a rotor, and a stator. The turbine wheel is configured to receive natural gas from a natural gas pipeline and rotate in response to expansion of the natural gas flowing into an inlet of the turbine wheel and out of an outlet of the turbine wheel. The rotor is coupled to the turbine wheel and configured to rotate with the turbine wheel. The flow-through electric generator is configured to generate electrical power upon rotation of the rotor within the stator. The electrolytic cell is configured to receive a water stream and the electrical power from the flow-through electric generator. The electrolytic cell is configured to perform electrolysis on the water stream using the received electrical power to produce a hydrogen stream and an oxygen stream.
Resumen de: CN119998970A
According to the present invention there is provided an enhanced ion conducting membrane, the enhanced ion conducting membrane comprising: an ion conducting polymer; and a porous mat of nanofibers. The porous mat of nanofibers is impregnated with an ionically conductive polymer. The nanofibers comprise a cross-linked polymer, wherein the cross-linked polymer is ionically non-conductive. The cross-linked polymer comprises a heterocycle-based polymer backbone comprising a basic functional group, and a linking chain linking at least two heterocycle-based polymer backbones via a linking group. The porous mat of nanofibers has a tear index of at least 15 mN m2/g.
Resumen de: TW202507083A
Gas composition reaching a flammability limit can be prevented by a method of stopping a gas production apparatus in a method of electrolyzing an alkaline electrolyte solution under pressurized conditions, the electrolyzing method including: circulating electrolyte solutions having flown out of anode and cathode chambers, respectively, to the anode and cathode chambers back again, the stopping method comprising: stopping operation of the gas production apparatus according to the procedure including predetermined steps.
Nº publicación: KR20250174265A 12/12/2025
Solicitante:
광운대학교산학협력단
Resumen de: KR20250174265A
본 발명의 일 측면에 따르면, (a)니켈 폼 기판 준비단계; (b) 상기 니켈 폼 기판 및 Fe, B 및 P의 전구체를 포함하는 수용액을 밀폐된 반응용기 내에 넣어서 수열반응법(hydrothermal approach)에 의해 상기 Ni 폼 기판에 FeBP 구조체를 제조하는 단계; 및 (c) 상기 FeBP 구조체를 바나듐(V) 수용액이 담긴 수용액 용기에 넣어서 침지법(soaking approach)에 의해 바나듐 도핑된 FeBP 마이크로스피어 크루아상 형상 구조체를 제조하는 단계를 포함하여 산소 및 수소 발생반응의 이중 기능이 향상된 바나듐 도핑된 FeBP 마이크로스피어 크루아상 형상 구조의 전기 촉매 구조체를 제조하는 방법이 제공된다.
BOPI
Sede Electrónica
