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371
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Updated on
14/02/2026 [07:03:00]
Results 350 to 371 of 371
Absstract of: WO2025257894A1
This ammonia decomposition system comprises: an ammonia decomposition device in which ammonia heated in the presence of a catalyst is decomposed into hydrogen and nitrogen; an ammonia supply line that supplies raw material ammonia to the ammonia decomposition device; an ammonia preheater that heats the raw material ammonia on the ammonia supply line; an exhaust gas discharge line that discharges exhaust gas generated as a result of heating by the ammonia decomposition device; an ammonia decomposition furnace that houses the ammonia preheater on a side closer to an exhaust gas discharge port, to which the exhaust gas discharge line is connected, than the ammonia decomposition device, and that houses the ammonia decomposition device on a side farther from the exhaust gas discharge port than the ammonia preheater; and an exhaust gas circulation line that branches, from the exhaust gas discharge line, at least a portion of the exhaust gas discharged from the ammonia decomposition furnace through the exhaust gas discharge line, and that, in the ammonia decomposition furnace, supplies for circulation the exhaust gas to a side further away from the exhaust gas discharge port than the ammonia preheater.
Absstract of: 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.
Absstract of: WO2025256097A1
The present application provides an electrocatalyst and a preparation method therefor, an electrode, an electrolytic apparatus, and a use. The electrocatalyst comprises a carbon-based substrate and a coating layer loaded on at least part of the surface of the carbon-based substrate; the carbon-based substrate has a three-dimensional porous structure; the coating layer comprises metallic nickel and trinickel disulfide; by utilizing the porous structure of the carbon-based substrate, a larger specific surface area is provided, so as to increase the coating amount, thereby providing more catalytic active sites, and by means of the synergistic effect of the carbon-based substrate with the metallic nickel and trinickel disulfide loaded on the surface thereof, a locally negatively charged region can be formed, providing more active sites for hydrogen adsorption, which can greatly improve catalytic activity, reduce hydrogen evolution overpotential, and improve the stability of the electrocatalyst.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: US2025382713A1
There provided a method for producing an electrolysis electrode having excellent catalytic activity such as low oxygen overpotential and including a catalyst having excellent stability such as reducing loss of a catalyst component such as iridium (Ir). The method for producing an electrolysis electrode includes a step of coating a catalyst precursor composition containing an iridium component and the like on a surface of an electrically conductive substrate, a step of obtaining a primary baked product by thermal treating the electrically conductive substrate coated with the catalyst precursor composition, and a step of forming a catalyst layer containing an iridium oxide on the surface of the electrically conductive substrate by thermal treating the primary baked product, wherein the iridium component is an iridium compound containing a carboxy group, and the content of nickel (Ni) is 10 to 35% by mass, the content of cobalt (Co) is 25 to 55% by mass, and the content of iridium (Ir) is 15 to 55% by mass in the catalyst precursor composition, provided that Ni+Co+Ir=100% by mass.
Absstract of: US2025382717A1
A facility for producing hydrogen comprising: A series of n electrolysers configured to electrolyze water and generate a hydrogen-aqueous solution mixture, said series having an overall capacity greater than 40 MW;A gas-liquid separation device configured to remove the aqueous solution contained in the hydrogen-aqueous solution mixture generated by the series of n electrolysers, and produce a hydrogen stream; andn lines configured to deliver the hydrogen-aqueous solution mixture generated by the n electrolyzers to the gas-liquid separation device.
Absstract of: US2025382710A1
Disclosed herein are low voltage electrolyzers and methods and systems of using those low voltage electrolyzers. Specifically, the electrolyzers can include a pH buffer in the catholyte and/or anolyte of the electrolyzer and generating a gas at the cathode or anode that is consumed at the other of the cathode or anode to reduce the open-circuit potential.
Absstract of: US2025382527A1
A process for the production of sustainable aviation fuel (SAF) with low carbon intensity. The jet fuel is produced from the reaction of hydrogen from the electrolysis of water with captured carbon dioxide. The hydrogen and carbon dioxide are reacted to product a stream comprising carbon monoxide. Hydrogen and carbon monoxide are reacted to produce n-alkanes. Alkanes are hydroisomerized to produce sustainable aviation fuel with low carbon intensity.
Absstract of: 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.
Absstract of: KR20250175597A
본 발명은 수소 발생용 촉매 및 이의 제조방법에 관한 것으로, 지지체 및 상기 지지체 상에 담지되어 망간, 철, 코발트, 니켈, 구리으로 이루어지는 4족 원소군으로부터 선택된 1종류 이상의 금속 원소를 포함하는 전이금속 질화물을 포함하여 고비용 귀금속을 사용하지 않고도 저비용 전이금속 질화물인 단분산 나노입자인 수소 발생용 촉매를 제공하여 높은 활성으로 산소발생반응(Oxygen Evolution Reaction, OER)을 촉진하는 효과가 있다.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: JP2025182977A
【課題】温度の低い部分の発生を低減できるスタック、ホットモジュール及び水素発生装置を提供する。【解決手段】スタックは、陽極と陰極とを厚さ方向に隔離する電解質を含む電解セルが、厚さ方向に複数配置され電解セルが互いに直列に接続された積層体と、積層体の厚さ方向の外側に配置され電解セルに電気的に接続される極性が互いに異なる２枚の導電板と、２枚の導電板にそれぞれ接続され厚さ方向に交わる方向に突き出た端子と、を備え、端子の少なくとも１つは、積層体に向かって折れ曲がっている。【選択図】図１
Absstract of: WO2025256097A1
The present application provides an electrocatalyst and a preparation method therefor, an electrode, an electrolytic apparatus, and a use. The electrocatalyst comprises a carbon-based substrate and a coating layer loaded on at least part of the surface of the carbon-based substrate; the carbon-based substrate has a three-dimensional porous structure; the coating layer comprises metallic nickel and trinickel disulfide; by utilizing the porous structure of the carbon-based substrate, a larger specific surface area is provided, so as to increase the coating amount, thereby providing more catalytic active sites, and by means of the synergistic effect of the carbon-based substrate with the metallic nickel and trinickel disulfide loaded on the surface thereof, a locally negatively charged region can be formed, providing more active sites for hydrogen adsorption, which can greatly improve catalytic activity, reduce hydrogen evolution overpotential, and improve the stability of the electrocatalyst.
Nº publicación: CN121137739A 16/12/2025
Applicant:
住友电气工业株式会社
Absstract of: 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.
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