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Última actualización
05/06/2025 [07:06:00]
Resultados 900 a 925 de 964
Resumen de: WO2025074377A1
The present disclosure provides an electrocatalytic reactor with the arrangement of the reactor assembly line, and process steps in a process plant for electrocatalytic reduction of green-house gas (GHG) emissions into VAPs, wherein the electrocatalytic reactor is equipped with symmetric or asymmetric electrodes (cathode and anode) that act as electrocatalyst, which are dipped in an electrolytic reaction solution that includes acidified deionised water (H3O+) and a catalyst initiator An external current of 1 to 5 A applied to the electrodes in a voltage range of 1 to 5 V for 3 to 5 hours, which initiates C-C coupling or C-O coupling reactions on the cathode surface forming short-lived cation radical intermediates, wherein the short-lived cation radical intermediates react among themselves, or react with in-situ produced H2 gas, leading to the formation of VAPs.
Resumen de: WO2025075619A1
Systems and methods for power generation are provided. An example method includes pretreating water by a water pretreatment system to obtain purified water, providing the purified water to a chemical reaction chamber containing a catalyst, applying a focused magnetic field and an electric field to a mixture of the purified water and the catalyst to cause generation of structurally altered gas molecules from the purified water, wherein the structurally altered gas molecules are a combination of two parts hydrogen and one part oxygen and the structurally altered gas molecule has a hydrogen-oxygen-hydrogen bond angle between 94 degrees and 104 degrees and a hydrogen-oxygen bond length between 0.95 Angstrom and 1.3 Angstrom, and providing the structurally altered gas molecules to a turbine, wherein the turbine combusts gas includes the structurally altered gas molecules to drive a turbine generator in order to generate electrical power.
Resumen de: MX2024010526A
The present disclosure relates to methods and reactors for generating of gas and specifically for generation of oxygen gas and hydrogen gas.
Resumen de: AU2025202132A1
METHODS TO PROVIDE ELECTRIC POWER FROM RENEWABLE ENERGY EQUIPMENT TO AN ELECTRICAL LOAD An HVDC system comprising an AC/DC converter sub-system electrically connected to a renewable energy equipment and a VSC sub-system is provided. A method comprises operating the renewable energy equipment to function as a voltage source to energize an HVDC link between the AC/DC converter sub-system and the VSC sub-system; operating the VSC sub system as a voltage source to energize at least one electrical load electrically connected thereto; if it is determined that the power production rate of the renewable energy equipment is not within a designated parameter, operating the equipment to follow the VSC sub-system such that controlling the AC electric power output influences the power production rate. If it is within the designated parameter, operating the VSC sub-system to follow the renewable energy equipment such that the VSC sub-system adjusts the properties of its AC electric output to match the properties of the electric power generated by the renewable energy equipment.
Resumen de: AU2023363867A1
The invention relates to a method for the synthesis of ammonia (18), in which a gas mixture (make-up gas) (1) comprising hydrogen and nitrogen is provided in a first operating mode with a flow rate that is above a threshold value and in a second operating mode with a flow rate that is below this threshold value in order to form an ammonia synthesis gas (5), which is reacted in an ammonia reactor (R) in at least one first catalyst bed (K1) and in a second catalyst bed (K2), connected to the first catalyst bed, to form a synthesis product (16) containing ammonia, wherein in a cooling device (E3) arranged between the first (K1) and the second catalyst bed (K2), non-reacted ammonia synthesis gas (8) is used as a cooling agent in order to reduce the temperature of an ammonia synthesis gas (12) partially reacted in the first catalyst bed (K1) before it is forwarded to the second catalyst bed (K2), wherein in the second operating mode, the higher the flow rate of the provided make-up gas (1), the greater the reduction in temperature of the partially reacted ammonia synthesis gas (12). What is characteristic is that the ammonia synthesis gas (12) partially reacted in the first catalyst bed (K1) is cooled by indirectly exchanging heat with provided ammonia synthesis gas (8).
Resumen de: WO2025073798A1
The invention relates to a method for synthesizing ammonia, having the steps of: - providing hydrogen; - supplying the hydrogen to an ammonia synthesis circulator (10) comprising an ammonia converter (3) in which ammonia is catalytically synthesized; a circulator (1) which supplies a reactant gas mixture, containing the hydrogen and nitrogen, to the ammonia converter (3); and a cooling section (5) in which ammonia is condensed out of a product gas mixture of the ammonia converter (3), wherein the ammonia synthesis circuit (10) is first operated in a full-load operation, in which the ammonia synthesis circuit (10) provides a nominal flow rate of hydrogen, and the ammonia synthesis circuit (10) is converted from the full-load operation to a partial-load operation, in which the ammonia synthesis circuit (10) provides a flow rate of hydrogen which is lower than the nominal flow rate. In the partial-load operation, a first gas flow is branched off from the reactant gas flow and is conducted to the inlet of the circulator (1), and a second gas flow is branched off from the product gas mixture and is conducted to the inlet of the circulator (1).
Resumen de: EP4534733A1
A laminate for a water electrolysis device includes a polymer electrolyte membrane and an electrode catalyst layer provided on one surface of the polymer electrolyte membrane. The electrode catalyst layer includes a catalyst, a polymer electrolyte, and a fibrous material. A membrane electrode assembly for a water electrolysis device includes the laminate for a water electrolysis device and a second electrode catalyst layer, and includes an electrode catalyst layer, a polymer electrolyte membrane, and a second electrode catalyst layer in this order.
Resumen de: EP4534197A1
The present disclosure relates to a catalyst for decomposition of ammonia and a method for decomposition of ammonia.
Resumen de: CN119278297A
The invention relates to a gas-permeable electron-conducting plate for use as a porous transport layer for an electrolytic cell and to a method for producing said gas-permeable electron-conducting plate, to a building unit for an electrolytic cell, and to an electrolytic cell.
Resumen de: EP4535518A1
Disclosed is a hybrid system in which a solid oxide electrolyzer cell (SOE), a solid oxide fuel cell (SOFC), and a carbon capture system (CCS) are coupled to each other, and more particularly to an SOE-SOFC-CCS hybrid system configured such that a solid oxide electrolyzer cell, a solid oxide fuel cell including a burner configured to burn off-gas, and a carbon capture system are systematically operated and such that by-products and waste heat generated as the result of operation thereof are recycled, whereby consumption of hydrogen and a fuel necessary for power production is minimized.
Resumen de: CN119301307A
A separator (1) for water electrolysis, said separator (1) comprising, on at least one side thereof:-a surface area Smax,-a surface area SC for contacting an electrode surface, and-a channel (10) for evacuating bubbles, having a cross-section phi C, characterized in that:-the SC/Smax ratio is from 0.025 to 0.50, and-the cross-section phi C is sufficiently large to evacuate bubbles having a diameter of from 5 to 50 mu m.
Resumen de: EP4534728A1
The present invention relates to circular carbon process for transporting energy comprising:a first step, wherein hydrogen is produced via water electrolysis,a second step, wherein the hydrogen produced in the first step and granular pyrolytic carbon produced in the fourth step are reacted to hydrocarbons,a third step, wherein the hydrocarbons produced in the second step are fed into a gas grid,a fourth step, wherein the hydrocarbons are taken from the gas grid, and hydrocarbons are decomposed to hydrogen and granular pyrolytic carbon,a fifth step, wherein the granular pyrolytic carbon produced in the fourth step is transported to a production site of the hydrating gasification of step two,wherein the hydrocarbons decomposition of step four is conducted in a moving or fixed bed of solid substrates and wherein the produced granular pyrolytic carbon has a bulk density in the range of 0.5 to 1.5 g/cc and has a particle size of 0.1 mm (d10) to 10 mm (d90).
Resumen de: EP4534734A1
A control device for a hydrogen production apparatus is a control device for controlling operation of a hydrogen production apparatus and includes: an estimated reaching time calculation unit configured to calculate, on the basis of a change rate of a pressure of a storing unit for storing hydrogen produced by the hydrogen production apparatus, an estimated reaching time for the pressure of the storing unit to reach a specified value; a start-up time acquisition unit configured to acquire a start-up time of the hydrogen production apparatus in accordance with a state of the hydrogen production apparatus; and a determination unit configured to determine a start-up timing for starting up the hydrogen production apparatus on the basis of a comparison between the estimated reaching time and the start-up time.
Resumen de: EP4534725A1
A compression apparatus according to an aspect of the present disclosure includes: a compressor that generates compressed hydrogen at a cathode by an electrolysis of water or by oxidation and reduction of hydrogen generated by applying a voltage between an anode and the cathode having flexural rigidity lower than flexural rigidity of the anode; and a controller that, in startup or in shutdown, determines an abnormality based on a gas flow rate at an exit of the anode or a pressure at the cathode after supplying a testing gas from a testing gas supplier to the cathode.
Resumen de: EP4534518A1
The methane generation system according to the present invention includes a methane generation unit including an electrolysis device that electrolyzes water to obtain hydrogen and a methane reactor that obtains a fuel gas containing methane by a methanation reaction using the hydrogen; a reformer that reforms the fuel gas to obtain a reformed gas; a fuel cell that generates electricity by a reaction of obtaining a product gas from the reformed gas and an oxygen-containing gas; a recovery device that separates a recovery gas containing carbon dioxide from return fluid which is a part of the product gas; and a circulation path through which the recovery gas is guided to the methane generation unit.
Resumen de: TW202409348A
An alkaline electrolyzer system comprising an electrochemical cell in proximity to a spacer frame is provided. The spacer frame contains a polymer composition that includes a polymer matrix that contains at least one polyarylene sulfide.
Resumen de: EP4535215A1
A simulation system and method for hydrogen production by water electrolysis. The simulation system for hydrogen production by water electrolysis comprises: a first simulation unit used for simulating a hydrogen production power system to obtain hydrogen production electrical parameters; a controller unit used for outputting a control instruction to control hydrogen production process parameters in a hydrogen production chemical system; a second simulation unit used for simulating the hydrogen production chemical system according to the hydrogen production electrical parameters and the control instruction so as to obtain a hydrogen production result; and a data interaction unit, the first simulation unit, the controller unit, and the second simulation unit being capable of performing data interaction by means of the data interaction unit. Joint simulation of complete chemical and electrical processes for hydrogen production by water electrolysis can be realized.
Resumen de: AU2023277213A1
The present invention is directed to piezo photocatalytic process for the production of hydrogen from water, wherein the process comprises the steps of: (a) providing non-metal-doped barium titanate which includes at least one defect; (b) contacting the non-metal-doped barium titanate provided in step (a) with water to form a mixture; and (c) subjecting the mixture formed in step (b) to: (i) actinic radiation; and (ii) mechanical force, to produce hydrogen from the water, as well as non-metal-doped barium titanate and methods of production thereof.
Resumen de: AU2023315921A1
The invention relates to a method for operating an electrolysis system (2) comprising at least one electrolyser (4) for generating hydrogen (6) and oxygen (8) as products, and at least two downstream compressors (10) for compressing at least one product (6, 8) produced in the electrolyser (4). In order to ensure part-load operation of the electrolyser (2) that is optimised in terms of efficiency and is also cost-effective, during part load operation of the electrolyser (4), a first group (A) of compressors (10
Resumen de: AU2023326035A1
The invention relates to an electrolysis device (1) for producing hydrogen through electrochemical reaction from an aqueous alkali solution, wherein the electrolysis device (1) comprises an anodic half cell (2) and a cathodic half cell (3). The anodic half cell (2) and the cathodic half cell (3) are separated by means of a membrane (4) and the alkali solution can flow through the cathodic half cell (3). The anodic half cell (2) comprises an anodic electrode (5) and the cathodic half cell (3) comprises a cathodic electrode (6), wherein the anodic electrode (5), the cathodic electrode (6) and the membrane (4) form a membrane-electrode unit (7). Furthermore, in normal operation of the electrolysis device, an initial fill quantity of alkali solution in the cathodic half cell (3) can be changed only by diffusion processes through the membrane-electrode unit (7) and/or by electrochemical reaction of the alkali solution in the membrane-electrode unit (7).
Resumen de: CN119776905A
本发明属于电化学技术领域，具体涉及一种ZIF‑ZnCoO/NF电极及其制备方法和应用。制备方法包括：将可溶性锌盐、可溶性钴盐、尿素和氟化铵溶于水，得到混合溶液；将泡沫金属基底置于混合溶液中进行水热反应，得到前驱体ZnCo(CO3)OH/NF；将前驱体ZnCo(CO3)OH/NF于二甲基咪唑水溶液中静置，构建具有ZIF结构的薄膜，经退火处理，得到ZIF‑ZnCoO/NF电极。本发明的制备方法克服了传统高温氧化法制备双金属型ZnCoO电极材料时结构致密、比表面积低和催化位点密度不足的问题。
Resumen de: CN119787657A
本发明提供了一种基于太阳能和核能的制氢方法和装置，属于新能源和节能的技术领域。基于太阳能和核能的制氢方法包括以下步骤：接收自然太阳光，并将所述自然太阳光进行分流成至少两组筛分光束；利用至少一组所述筛分光束进行光伏发电，利用其它所述筛分光束进行辅助发电；及利用所述光伏发电和所述辅助发电产生的电能电解水制氢。本发明提供的基于太阳能和核能的制氢方法和装置，将太阳光中能量较高的波段与能量较低的波段分离开，利用能量较高的光束进行光伏发电，利用能量较低的光束进行辅助发电，采用光伏发电和辅助发电相配合的方式获取稳定的电能。
Resumen de: CN119776885A
本发明公开了一种中空纳米方块Mn1Fe3PBA@NiFe LDH复合催化剂的制备方法，所述复合催化剂采用基底材料，通过溶液沉淀法制备Mn1Fe3PBA纳米立方体，通过水热法制备NiFe LDH绣球花，并将Mn1Fe3PBA纳米立方体和NiFe LDH绣球花结合形成三维中空纳米方块结构的Mn1Fe3PBA@NiFe LDH复合催化剂。以及上述制备方法制得的中空纳米方块Mn1Fe3PBA@NiFe LDH复合催化剂在碱性阳极析氧反应中的应用。本发明中NiFe LDH提供了良好的导电性和骨架通道，Mn1Fe3PBA提供了额外的位点，两者结合提高催化剂的电子导电性，加快催化反应动力学；增强结构稳定性，提高催化剂的使用寿命；降低反应过程中所需的过电位，提高整体的催化效率。
Resumen de: CN119771130A
用于电解水制氢的气体干燥器，涉及混合气体分离技术领域，包括水平设置的安装底座，安装底座上分别设有涡旋冷却组件、再生吸附组件和冷凝回流组件。本发明解决了传统技术中的氢气干燥方法在应用过程中，存在的能耗高、无法长期使用、运行条件复杂以及多种形态的水分干燥不便等问题。
Nº publicación: CN119774702A 08/04/2025
Solicitante:
中国船舶集团有限公司第七一八研究所
Resumen de: CN119774702A
本实施例提供了一种便携式水质净化过滤器和SPE水电解制氢系统，涉及制氢技术领域，过滤器包括壳体、第一接头、第二接头、第一滤板、第二滤板和定位机构。壳体上设置有在其轴向上间隔排布的第一进出料口和第二进出料口；第一接头和第二接头均安装于壳体上且分布于壳体的两端，第一接头、第二接头和壳体配合限定出流动空腔；第一滤板和第二滤板均安装于流动空腔内，第一滤板和第二滤板之间形成用于填充树脂的容纳腔，第一进出料口和第二进出料口均连通容纳腔；定位机构安装于壳体，定位机构用于与支架可拆卸地连接，以定位壳体。该过滤器运行成本低。
BOPI
Sede Electrónica
