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利用闪蒸罐强化碱性电解水制氢溶解氢脱除的装置及方法

Resumen de: CN119332263A

The invention discloses an alkaline electrolysis water hydrogen production system and method capable of deeply reducing the hydrogen content in oxygen in multiple ways, a hydrogen side flash tank is arranged in the alkaline electrolysis water hydrogen production system, and dissolved hydrogen deep removal is carried out on hydrogen side alkali liquor passing through a gas-liquid separator through the hydrogen side flash tank; a mixed alkali liquor flash tank is arranged in an alkaline electrolysis water hydrogen production system, and deep removal of dissolved oxygen and dissolved hydrogen is carried out on mixed alkali liquor through the mixed alkali liquor flash tank; a hydrogen side pressure adjusting part capable of adjusting the pressure of a cathode chamber is arranged in a hydrogen side gas-liquid separator system, and an oxygen side pressure adjusting part capable of adjusting the pressure of an anode chamber is arranged in an oxygen side gas-liquid separation system, so that the pressure of the anode chamber of the alkaline electrolytic cell is higher than that of the cathode chamber, and the amount of hydrogen entering the anode chamber from the cathode chamber through a diaphragm is reduced; the concentration of hydrogen in oxygen in the water electrolysis hydrogen production system is reduced, and the safety of the system is improved.

一种高密度多成分L12相强化Cu基合金电解水催化剂及其制备方法和应用

Resumen de: CN119913411A

本发明公开了一种高密度多成分L12相强化Cu基合金电解水催化剂及其制备方法和应用，属于催化剂技术领域。本发明以Cu为基体，添加Ni、Al元素使合金中存在L12相的析出，引入Co元素替代部分Ni元素，进一步提升L12相的催化性能；通过以替Al的方式添加Ti元素，促进L12相的析出并减少合金脆性，保证加工性能；Nb及V等难熔元素的添加可以提升L12相的稳定性，避免其时效过程中的粗化；Cr元素的添加通过Cr2O3钝化层的形成可保证合金的电化学稳定性，B为间隙小原子且易偏聚于晶界，提升晶界强度，进一步优化合金力学性能并保证其加工性能。

一种用于化学链反应制氢的氧载体提升循环系统

Resumen de: CN119909606A

本申请涉及一种用于化学链反应制氢的氧载体提升循环系统，包括：依次设置的氧载体进料斗、氧环境反应单元、氮封罐、氢环境反应单元以及氧载体提升单元；氧载体通过自身重力流，由所述氧载体进料斗依次在所述氧环境反应单元、所述氮封罐、所述氢环境反应单元之间流转直至到达所述氧载体提升单元；还包括提升气循环单元，所述提升气循环单元用于提供可循环的提升气，到达所述氧载体提升单元的氧载体在提升气的带动下提升返回至所述氧载体进料斗；所述提升气包括循环流动的氮气，所述氮封罐以及所述提升气循环单元分别连接有补氮单元。本发明能够实现氧载体在不同反应气体环境中的切换，同时使氧载体在系统中得到稳定可靠的循环。

一种基于地热能利用的制氢设备及使用方法

Resumen de: CN119913538A

本发明公开了一种基于地热能利用的制氢设备及使用方法，属于地热能利用技术领域。包括发电部件，用以提供电能；电解部件，包括盛放清水的储水腔和储水腔内进行电解水的电极，电极与发电部件电性连接；储氢部件，与电解部件的输氢管连通，用以将电解部件电解出的氢气收集；储水腔的上方包括输氢管，用以将电解产生的氢气输送给储氢部件；使用方法包括：产生的水蒸气通过管道的另一端到达生产井内；发电机将产生的电能通给变压器，供给电极电解使用；电极在通电后工作将储水腔内的水电解为氢气和氧气；当氢气到达输氢管会进一步的到达压缩机内。本发明提供的基于地热能利用的制氢设备及使用方法，避免了输送过程中的损耗过大，利于能量的存储。

纳米多孔复合电催化材料及其制备方法和应用

Resumen de: CN119913551A

本发明提供了一种纳米多孔复合电催化材料及其制备方法和应用，其中，复合电催化材料包括纳米多孔合金催化层和电镀合金催化层，纳米多孔合金催化层包括金属基底和纳米多孔结构，纳米多孔结构形成在金属基底的表面，电镀合金催化层通过电镀形成在纳米多孔结构表面。在本发明中，电镀合金催化层和所述纳米多孔结构层强力结合增加了结合强度和结构稳定性，纳米多孔结构可以加速电解质的渗透和H2气泡的扩散，从而保证高电流下HER过程中的传质效率及气体扩散速率，同时其较大的比表面积可为电催化析氢反应提供更多的活性位点；电镀合金催化层中的电镀合金含有较高HER催化活性金属元素，可进一步降低析氢反应动力学的能量势垒，从而降低析氢反应的过电位。

水分解システムおよび水分解方法

Resumen de: AU2023262052A1

A water splitting system includes a hydrogen production chamber including a hydrogen production port, an oxygen production chamber including an oxygen collection port, an ion exchange membrane coupling the hydrogen production chamber and the oxygen production chamber, and a photocatalytic structure including a first catalytic portion disposed in the hydrogen production chamber and a second catalytic portion disposed in the oxygen production chamber. The first catalytic portion is configured for production of hydrogen via the hydrogen production port. The second catalytic portion is configured for production of oxygen via the oxygen production port.

発電方法及び発電システム

Resumen de: JP2025070545A

【課題】マグネシウムを燃料して発電をする。【解決手段】溶融工程１２（液体化工程）において、マグネシウム２１を溶融（液体化）する。噴霧工程１３において、溶融工程１２（液体化工程）で溶融（液体化）したマグネシウム（混合液体２３）を噴霧する。燃焼工程１４（酸化工程）において、噴霧工程１３で噴霧したマグネシウム（霧状混合物２５）を燃焼（酸化）して、酸化マグネシウム２７を生成する。発電工程１５において、燃焼工程１４で発生する反応熱２９を利用して発電する。【選択図】図１

WATER ELECTROLYSIS CATALYTIC ACTIVITY PROMOTER, AND WATER ELECTROLYSIS APPARATUS USING SAME

Resumen de: WO2025089500A1

The present invention relates to a catalytic activity promoter to be dissolved in an alkaline electrolyte solution of a water electrolysis apparatus so as to promote the catalytic activity of an oxygen-generating electrode. The catalytic activity promoter comprises 2,2,6,6-tetramethylpiperidine-1-oxyl, which is oxidized in a dissolved state in the oxygen evolution reaction of the water electrolysis apparatus, and then meets an oxygen evolution reaction intermediate so as to be spontaneously reduced, and oxidizes the oxygen evolution reaction intermediate.

FUEL CRACKER FOR PRODUCING A FUEL WITH STABLE COMBUSTION PROPERTIES FROM AMMONIA

Resumen de: WO2025087614A1

Process (2) for the production of an enhanced fuel gas (4) containing at least hydrogen gas from a fuel stream, in particular from an ammonia fuel stream (6). Said process comprises the following steps: - providing the fuel stream (6) (S100); - providing a condensable medium (8), preferably water steam (8), to a cracker unit (10); - at least one step of performing an endothermic cracking reaction of the fuel stream (6) in the cracker unit comprising at least one catalyst suitable for cracking said fuel stream (6), so as to produce an at least partially cracked fuel stream as said enhanced fuel gas (4) (S300); and - condensing at least partially said condensable medium (8) to provide said heat for the endothermic cracking reaction of the fuel stream (6).

SYSTEM FOR PRODUCING SODIUM HYPOCHLORITE AND HYDROGEN GAS

Resumen de: WO2025089546A1

An aspect of the present invention provides a system for producing sodium hypochlorite and hydrogen gas, comprising: a desalination unit for desalinating seawater to generate a fresh water stream and a concentrated water stream; a crystallization unit for crystallizing the concentrated water stream to generate a solid raw material containing sodium chloride; an electrolysis unit for electrolyzing reactants, derived from the solid raw material and water, to generate sodium hypochlorite and by-product gas; and a gas purification unit for purifying the by-product gas to generate hydrogen gas.

AMMONIA DECOMPOSITION APPARATUS

Resumen de: WO2025088755A1

An ammonia decomposition apparatus according to one aspect is provided with: a preheating flow path through which a reaction gas flows in a first direction; a first reaction flow path which is connected to the preheating flow path and through which the reaction gas that has passed through the preheating flow path flows in a second direction opposite to the first direction; a second reaction flow path which is connected to the first reaction flow path and through which the reaction gas that has passed through the first reaction flow path flows in the first direction; a first heating gas flow path which heats the reaction gas in the first reaction flow path and the second reaction flow path by a high-temperature gas; and a second heating gas flow path which is connected to the first heating gas flow path and which heats the reaction gas in the preheating flow path and the first reaction flow path by the high-temperature gas that has passed through the first heating gas flow path. In the first reaction flow path and the second reaction flow path, an ammonia decomposition catalyst is disposed. The first heating gas flow path, the first reaction flow path, the second heating gas flow path, and the preheating flow path are arranged concentrically or elliptic-concentrically around the axis of the second reaction flow path in this order from the side closer to the second reaction flow path.

GEOTHERMALLY DRIVEN AMMONIA PRODUCTION

Resumen de: US2025136457A1

Apparatus, system, and method for geothermally driven ammonia production. Hydrogen is generated using energy obtained from the underground magma reservoir and nitrogen is captured from air using the energy obtained from the underground magma reservoir. At least a portion of the generated hydrogen is combined with at least a portion of the generated nitrogen and heated at least to a reaction temperature using the energy obtained from the underground magma reservoir. The heated hydrogen contacts the heated nitrogen for a residence time to form the ammonia.

DEVICES, SYSTEMS, AND METHODS FOR ELECTROCHEMICALLY PURIFYING HYDROGEN

Resumen de: US2025135397A1

Hydrogen gas purifier electrochemical cells, systems for purifying hydrogen gas, and methods for purifying hydrogen gas are provided. The cells, systems, and methods employ double membrane electrode (DMEA) electrochemical cells that enhance purification while avoiding the complexity and cost of conventional cells. The purity of the hydrogen gas produced by the cells, systems, and methods can be enhanced by removing at least some intermediate gas impurities from the cells. The purity of the hydrogen gas produced by the cells, systems, and methods can also be enhanced be introducing hydrogen gas to the cells to replenish any lost hydrogen. Water electrolyzing electrochemical cells and methods of electrolyzing water to produce hydrogen gas are also disclosed.

METAL COMPOUND THIN FILM, METHOD OF FORMING THE SAME AND THIN FLIM CATALYST FOR WATER ELECTROLYSIS

Resumen de: US2025137139A1

A metal compound thin film, a method of forming the same and a thin film catalyst for water electrolysis are provided. The method includes providing a substrate; and performing plural ink-jet printing operations to the substrate to form the metal compound thin film on the substrate. The substrate is a non-hydrophobic substrate. Each of the ink-jet printing operations includes depositing a first precursor on the substrate by using a first nozzle of an ink-jet system; and depositing a second precursor on the substrate by using a second nozzle of the ink-jet system. A chemical reaction occurs between the first precursor and the second precursor to form a metal compound, and the metal compound thin film includes plural layers of the metal compound. Therefore, patterning the thin film can be easily accomplished, and chemical solution can be effectively saved.

HYDROGEN GENERATION AND CARBON DIOXIDE STORAGE SYSTEM WITH INCREASED PROCESSING CAPACITY OF CARBON DIOXIDE

Resumen de: US2025137153A1

A hydrogen generation and carbon dioxide storage system has increased processing capacity of carbon dioxide. The system includes a metal-carbon dioxide battery comprising an anode, a cathode, and an ion exchange membrane positioned between the anode and the cathode, a first supply unit configured to provide a first electrolyte to the anode, a second supply unit configured to provide a second electrolyte comprising hydrogen ions and an aqueous solution of alkali bicarbonate to the cathode, a separation unit, an electrolyte circulation unit located at a rear end of the separation unit, a dissolution unit located at a rear end of the electrolyte circulation unit, and a carbon dioxide purification unit.

PLANT AND PROCESS FOR PRODUCING HYDROGEN FROM SCISSION OF METHANE MOLECULES

Resumen de: US2025136442A1

A plant for producing hydrogen from scission of methane molecules with production of carbon dust includes a reactor having an inner chamber delimited by a holding wall. The reactor includes an inlet opening for feeding methane (CH4), an outlet opening for allowing hydrogen (H2) in gaseous form to flow out. A discharge opening is for discharging carbon dust (C) from the inner chamber through a sealing rotary valve. A refractory lining, and an electromagnetic induction heater are for heating the inner chamber of the reactor.

CATALYST, AND PREPARATION METHOD THEREFOR AND USE THEREOF

Resumen de: WO2025087088A1

Disclosed in the present application are a catalyst, and a preparation method therefor and the use thereof. By using a chromium-manganese co-doped ruthenium-based catalyst, in cooperation with a coordination dispersion effect of a chelating agent structure, the catalyst provided in the present application effectively inhibits sintering agglomeration of chromium, manganese and ruthenium components, and the prepared catalyst has better uniformity. Chromium and manganese regulate and control a d electron center of a ruthenium active site at the same time and serve as a high-corrosion resistance protective layer, such that when an OER reaction is carried out under a strong-acidity electrolyte system, the catalyst can effectively maintain high-activity characteristics thereof, long-cycle stable operation is achieved, and the use cycle can reach 2000 hours. The catalyst serving as a high-performance acidic oxygen evolution reaction electrocatalyst can be used for stably and efficiently carrying out an oxygen evolution reaction (OER) in an acidic electrolyte environment, and can be used as an anode material for water electrolysis hydrogen production in a proton conduction polymer electrolysis hydrogen production electrolytic tank, thereby solving the problems of few types, low performance and a short service life of existing acidic oxygen evolution catalysts.

BOILER SYSTEM AND METHOD FOR OPERATING BOILER SYSTEM

Resumen de: US2025137151A1

A boiler system (1) according to one aspect of the present invention includes a water electrolysis device (20) that electrolyzes electrolysis target water with electric power supplied from a natural energy power generation device (10) to generate hydrogen and oxygen, a boiler (30) that heats makeup water by combusting fuel to generate steam, a heat exchange device (40) that exchanges heat between the electrolysis target water and a heat medium, and a control device (70) having a cooling controller (71) that cools the electrolysis target water by supplying the makeup water as the heat medium to the heat exchange device when a preset cooling start condition is satisfied.

POWER SUPPLY DEVICE

Resumen de: US2025141341A1

A power supply device according to an embodiment is configured to supply DC power to an electrolytic cell producing hydrogen by electrolysis. The power supply device includes a power converter, a reactor, and a filter circuit; the power converter is self-commutated and includes a first output terminal and a second output terminal; the second output terminal is configured to output a positive voltage with respect to the first output terminal; the reactor is connected in series to at least one of the first output terminal or the second output terminal; and the filter circuit is connected between an anode and a cathode of the electrolytic cell. The filter circuit is a low-pass filter. A cutoff frequency of the filter circuit is set to be less than a switching frequency of the power converter.

Improved Catalysts And Processes For The Direct Production Of Liquid Fuels From Carbon Dioxide And Hydrogen

Resumen de: AU2025202662A1

Abstract Embodiments of the present invention relates to two improved catalysts and associated processes that directly converts carbon dioxide and hydrogen to liquid fuels. The catalytic converter is comprised of two catalysts in series that are operated at the same pressures to directly produce synthetic liquid fuels or synthetic natural gas. The carbon conversion efficiency for C02 to liquid fuels is greater than 45%. The fuel is distilled into a premium diesel fuels (approximately 70 volume %) and naphtha (approximately 30 volume %) which are used directly as "drop-in" fuels without requiring any further processing. Any light hydrocarbons that are present with the carbon dioxide are also converted directly to fuels. This process is directly applicable to the conversion of C02 collected from ethanol plants, cement plants, power plants, biogas, carbon dioxide/hydrocarbon mixtures from secondary oil recovery, and other carbon dioxide/hydrocarbon streams. The catalyst system is durable, efficient and maintains a relatively constant level of fuel productivity over long periods of time without requiring re-activation or replacement. Fig 1 FIG. 1 - Integrated Catalytic Converter and Process for the Production of Renewable Liquid fuels Electrolysis Captured CO 2 H, CO2 104 Catalytic Conversion System 103 Gas 105 Syngas 106 Heat 107 Blending/Heating C t #1 Exchanger Catalyst #2 Syngas --------------------------- -------------------------------------- ----------- Conversion 109Tailg

A PROCESS AND APPARATUS FOR SUSTAINABLE WATER FUELLED VEHICLE

Resumen de: AU2023366065A1

Abstract A sustainable water fuelled process and apparatus where a Unipolar electrolysis of water is described and the hydrogen and oxygen are stored before feeding a hydrogen fuel cell which is capable of providing sufficient electricity to provide power to a drive a vehicle, power a generator etc, after supplying electricity to the Unipolar electrolyser and the storage of the hydrogen and oxygen.

PRODUCTION OF HYDROGEN AND SOLID LITHIUM HYDROXIDE

Resumen de: AU2023343511A1

The problem addressed by the present invention is that of specifying a process for producing lithium hydroxide which is very energy efficient. The process shall especially operate without consumption of thermal energy. The process shall be able to handle, as raw material, Li-containing waters generated during digestion of spent lithium-ion batteries. The LiOH produced by the process shall have a high purity sufficient for direct manufacture of new LIB. The process shall achieve a high throughput and have small footprint in order that it can be combined with existing processes for workup of used LIB/for production of new LIB to form a closed, continuous production loop. The process according to the invention is an electrolytic membrane process operating with a LiSICon membrane. It is a special aspect of the process that the electrolysis is operated up to the precipitation limit of the lithium hydroxide.

PRODUCTION OF HYDROGEN AND LITHIUM HYDROXIDE IN A BASIC ENVIRONMENT

Resumen de: AU2023343512A1

The present invention relates to the electrochemical production of hydrogen and lithium hydroxide from Li+-containing water using a LiSICon membrane. The problem addressed by the present invention is that of specifying a process which is operable economically even on an industrial scale. The process shall especially exhibit a high energy efficiency and achieve a long service life of the membrane even when the employed feed contains impurities harmful to LiSICon materials. A particular aspect of the process is that the cell simultaneously separates off the lithium via the membrane and effects electrolysis of water. An essential aspect of the process is that the electrochemical process is performed in a basic environment, more precisely at pH 9 to 13. The pH is adjusted by addition of a basic compound to the feed.

Production of hydrogen and lithium hydroxide in a basic environment

Resumen de: AU2023343512A1

The present invention relates to the electrochemical production of hydrogen and lithium hydroxide from Li+-containing water using a LiSICon membrane. The problem addressed by the present invention is that of specifying a process which is operable economically even on an industrial scale. The process shall especially exhibit a high energy efficiency and achieve a long service life of the membrane even when the employed feed contains impurities harmful to LiSICon materials. A particular aspect of the process is that the cell simultaneously separates off the lithium via the membrane and effects electrolysis of water. An essential aspect of the process is that the electrochemical process is performed in a basic environment, more precisely at pH 9 to 13. The pH is adjusted by addition of a basic compound to the feed.

Devices, systems, and methods for electrochemically purifying hydrogen

Nº publicación: IL319349A 01/05/2025

Solicitante:

LUDLOW DARYL J [US]
LUDLOW Daryl J

Resumen de: US2025135397A1

Hydrogen gas purifier electrochemical cells, systems for purifying hydrogen gas, and methods for purifying hydrogen gas are provided. The cells, systems, and methods employ double membrane electrode (DMEA) electrochemical cells that enhance purification while avoiding the complexity and cost of conventional cells. The purity of the hydrogen gas produced by the cells, systems, and methods can be enhanced by removing at least some intermediate gas impurities from the cells. The purity of the hydrogen gas produced by the cells, systems, and methods can also be enhanced be introducing hydrogen gas to the cells to replenish any lost hydrogen. Water electrolyzing electrochemical cells and methods of electrolyzing water to produce hydrogen gas are also disclosed.