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952
results.
Updated on
02/06/2025 [06:58:00]
Results 575 to 600 of 952
Absstract of: EP4542815A2
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.
Absstract of: EP4541451A1
This dehumidification apparatus is for dehumidifying a hydrogen gas that is produced by a hydrogen production device, the dehumidification apparatus comprising: a dehumidifier that includes an adsorption tower, inside of which there is provided an adsorbent that is capable of adsorbing moisture contained in the hydrogen gas; an inlet line for introducing the hydrogen gas from the hydrogen production device into the dehumidifier; an inlet valve that is provided to the inlet line; an outlet line for discharging the hydrogen gas that is dehumidified by the dehumidifier out from the dehumidifier; an outlet valve that is provided to the outlet line; and a control device that is configured to adjust the opening degree of the inlet valve and the opening degree of the outlet valve on the basis of the pressure within the adsorption tower during activation of the dehumidification apparatus.
Absstract of: EP4541943A1
An electrode for electrolysis, including:a conductive substrate; anda catalyst layer disposed on a surface of the conductive substrate,in which at least one of the following conditions (I) and (II) is satisfied:(I) the catalyst layer contains a ruthenium element and an iridium element, and a crystallite size is 50 Å or more and 100 Å or less, the crystallite size being calculated from a peak observed in a 2θ range of 27° or more and 28.5° or less in an XRD spectrum, the XRD spectrum being obtained by subjecting the catalyst layer to X-ray diffraction measurement and(II) the catalyst layer contains (i) a ruthenium element, (ii) an iridium element, and (iii) at least one kind of metal element M selected from the group consisting of W, Zn, Mn, Cu, Co, V, Ga, Ta, Ni, Fe, Mo, Nb and Zr, in the catalyst layer, a molar ratio of the ruthenium element to the iridium element, in terms of ruthenium element/iridium element, is 1.4 or more, and a molar ratio of the metal element M to the ruthenium element, in terms of metal element M/ruthenium element, is 0.06 or more and 3.5 or less.
Absstract of: WO2023245201A2
A process of dissociating ammonia into a dissociated hydrogen/nitrogen stream in catalyst tubes within a radiant tube furnace and an adiabatic or isothermal unit containing catalyst, along with downstream purification process units to purify the dissociated hydrogen/nitrogen stream into high purity hydrogen product.
Absstract of: GB2634787A
A method and associated apparatus 50 for the production of gas via electrolysis of water. The method comprises: performing electrolysis of water within one or more electrolysis cells (figure 1,2), to produce a mixture comprising a liquid and at least one of hydrogen and oxygen. The gas(es) and liquid are separated, where the separator 53 operates at a higher pressure than the pressure at which the one or more electrolysis cells operate. An additional pressurising step 55 can be performed on the gaseous mixture before separation. The gas output from the separator may be supplied to a compressor. A energy harvesting device may be provided as a part of a depressuring system 56.
Absstract of: EP4541941A1
To provide a technique allowing reduction in the amount of usage of a catalyst material while alleviating performance degradation of a gas diffusion layer. A cell as an electrode structure comprises an electrolyte membrane (41), a gas diffusion layer (43), and a catalyst layer (45). The gas diffusion layer (43) is positioned on one side of the electrolyte membrane (41). The gas diffusion layer (43) is a porous layer. The catalyst layer (45) is positioned between the electrolyte membrane (41) and the gas diffusion layer (43). The catalyst layer (45) is formed from a catalyst material. A penetration part (433) formed in the gas diffusion layer (43) by the penetration the catalyst material having a thickness of 1 µm or less.
Absstract of: EP4541944A1
A proton exchange membrane (10) for water electrolysis comprising a proton exchange substrate (12) coated on one side with a titanium oxide film (14), the titanium oxide film having a thickness (t<sub>14</sub>) equal to or smaller than 100 nm. A method for making a proton exchange membrane for water electrolysis.
Absstract of: US2025125381A1
A catalyst electrode including a metal layer and a catalyst layer formed on the metal layer is provided. The catalyst layer includes iridium and palladium. A membrane electrode assembly and a method for manufacturing a catalyst electrode are also provided.
Absstract of: WO2024041751A1
The invention relates to a method and a device for producing a cracked gas (7) comprising hydrogen and nitrogen from an ammonia-rich input (1) that is more than 50% ammonia by volume, wherein ammonia present in the ammonia-rich input (1) is cracked in a cracker furnace (C) with catalytic assistance at a cracking pressure above 5 bar and a cracking temperature of at least 500°C in order to obtain the cracked gas (7) comprising hydrogen and nitrogen. The invention is characterised in that the ammonia-rich input (1) undergoes catalytically assisted pre-cracking (V), during which some of the ammonia present in the input (1) is separated into hydrogen and nitrogen and an input (5) comprising ammonia for the cracker furnace (C) is obtained.
Absstract of: CN119864835A
本发明提供一种波动能源制氢系统的配置方法及电子设备，其中，波动能源制氢系统的配置方法包括：获取与波动能源制氢系统中至少一个设备单元相对应的设备工作参数集，并基于设备工作参数集构建各个设备单元所分别对应的容量配置模型；根据各个容量配置模型确定决策变量，根据与波动能源制氢系统制备单位量的氢气所对应的制备成本最低且制备碳排放量最小确定目标函数，根据供电功率条件和供氢速率条件确定约束条件；求解波动能源氢储系统模型中各个决策变量的最优解，以相应地确定各个设备单元的容量配置结果。由此，通过多目标圆圈搜索确定各个设备单元的容量配置的最优解集，实现利用波动能源稳定制氢，同时兼顾系统的经济效益和碳减排。
Absstract of: PL446449A1
Przedmiotem zgłoszenia jest system do wytwarzania wodoru, zwłaszcza na potrzeby gospodarstw domowych, składający się z urządzenia wytwórczego zawierającego szczelny zbiornik z elektrolitem, połączone z nim co najmniej dwa segmenty generatorów (1) do elektrolizy, połączone ze sobą równolegle i zasilane prądem za pomocą źródła prądu połączonego z jednym generatorem (2), gdzie każdy segment generatorów (1) składa się z dwóch zewnętrznych bocznych ścian (3) i co najmniej dwóch generatorów (2) ze wspólną wewnętrzną ścianą (4), zbudowanych z co najmniej pięciu płyt (8), odizolowanych od siebie uszczelkami (9), wyposażonych w przelotowe otwory (5) wykonane w jednej linii z wlotem (6) oraz z wylotem (7), a dwie skrajne płyty (8) każdego generatora (2) stanowią elektrody wyposażone w otwory do podłączenia zasilania prądem oraz z urządzenia zabezpieczającego zawierającego filtr dekompresyjny mokry (23) z bezpiecznikiem (27) połączony z jednej strony z filtrem osuszającym (21), a z długiej strony z mniejszym od niego filtrem dekompresyjnym suchym (25) z bezpiecznikiem (27) wypełnionym wełną tłumieniową, połączonym przez zawór zwrotny ciśnieniowy (34) z filtrem mokrym (35) wypełnionym alkoholem propylowym, połączonym z czujnikiem ciśnieniowym (17) oraz bezpiecznikiem gazowym kierunkowym (36), połączonym z zaworem końcowym (37), zabezpieczonym filtrem tłumiącym (38) z wełną miedzianą.
Absstract of: JP2025065810A
【課題】 燃料極に供給するガスの加熱に要する熱エネルギーを低減することができる水素製造装置を提供すること。【解決手段】 水素製造装置（１）は、Ｎｉを含む燃料極（５１）と、固体電解質層（５３）と、空気極（５２）とを備え、燃料極に水素及び水蒸気が供給され、燃料極に供給された水蒸気を電気分解することにより燃料極にて水素を生成するとともに空気極にて酸素を生成し、燃料極から水素を含む燃料極排出ガスを排出し、空気極から酸素を含む空気極排出ガスを排出する電気化学セル（５０）と、燃料極排出ガスに含まれる水素の一部を前記燃料極に還流する還流部（６０）と、を備える。【選択図】 図１
Absstract of: CN119325656A
An electrical or electrosynthetic cell is disclosed, the architecture of which allows them to be easily stacked into a cell stack. These cells include polymer cell frames, functional materials (e.g., inter-electrode membranes, electrodes, metal bipolar plates, etc.) incorporated therein. For example, an electrical or electrosynthetic cell includes a polymeric cell frame, a first electrode and a second electrode, and an inter-electrode membrane positioned between the first electrode and the second electrode. The squeeze member is positioned adjacent to the first electrode. The squeeze member may be a metal bipolar plate squeeze member and/or a metal porous transport layer squeeze member. In one example, a polymer cell frame is sealed to a metal bipolar plate by a polymer-to-metal bond. In another example, at least one polymeric structural positioning member positions the metal bipolar plate against the polymeric cell frame. A cell stack comprising a plurality of cells is disclosed.
Absstract of: WO2025079526A1
This method for producing an electrode material that is to be used in an electrode of a water electrolysis device has an alkali treatment step for treating a specific NiAl-based alloy with an alkaline material in order to leach aluminum from the specific NiAl-based alloy, thereby obtaining Raney nickel. The specific NiAl-based alloy is an alloy that is represented by the composition formula Al4Ni(3-(x+y))FeyCox (where x and y are values satisfying 0.3≤x≤1.5 and 0≤y≤0.35).
Absstract of: WO2024047362A2
A membrane electrode assembly (MEA) for producing hydrogen in a water electrolyser is provided. The MEA comprises a polymer electrolyte membrane (REM), a cathode comprising a cathode catalyst on a first side of the REM, an anode comprising an anode catalyst on a second side of the REM, and a platinum-ruthenium (Pt-Ru) catalyst located on the second side of the REM for electrochemically converting hydrogen gas into hydrogen cations in use. The Pt-Ru catalyst is in electrical contact with the anode and ionic contact with the REM.
Absstract of: CN119859810A
本发明涉及一种基于化学链循环的无膜电解水制氢电解槽及运行方法，所述电解槽包括分别与外部电源相连的第一端板、第二端板，两端板间设有至少一个双极板，两个端板和双极板之间、以及相邻两个双极板之间分别形成有电解小室；每个电解小室内设有功能组件，功能组件包括依次贴合的双功能电极、多孔隔板和载氧体电极，双功能电极与载氧体电极搭配使用时能够在不同工况下进行催化析氢、催化析氧，适应可再生能源的功率波动和间歇性，具备离网制氢的应用潜力。所述运行方法包括通过温度场和电场的协同供能，在不同工况下实现氢气与氧气的分步或连续生产。
Absstract of: CN119859817A
本公开涉及一种钛氧化合物纳米线负载铱的催化剂及其制备方法和应用，所述催化剂包括钛氧化合物纳米线载体和负载于所述钛氧化合物纳米线载体上的单质铱。该催化剂以钛氧化合物纳米线作为载体，在其上负载单质铱制备出的催化剂作为阳极催化剂能够获得更高的质量比活性和更低的析氧过电位；使用其制备的膜电极具有贵金属催化剂载量低、电解水分解电压低的特点。
Absstract of: CN119859824A
本公开涉及一种电解制氢系统、电解制氢启动方法、存储介质及电子设备，电解制氢系统包括：控制器、电解槽、电解液存储罐、分离器以及至少一个阀门，其中，电解液存储罐的容积小于分离器的容积，控制器，与阀门连接，用于获取电解槽出口的电解液的目标温度，根据目标温度，确定至少一个阀门的开度，以使电解槽与电解液存储罐形成第一制氢循环回路，通过至少一个阀门的开度，将电解槽与电解液存储罐形成第一制氢循环回路，由于电解液存储罐的容积小于分离器的容积，这样能够使电解槽与电解液通过第一制氢循环回路快速地加热到预设温度，有效地提高了电解制氢系统的制氢效率，并降低了电解制氢系统的冷启动时间。
Absstract of: CN119858897A
一种氨分解制氢方法及系统，方法是使用石墨烯作为微波吸收介质，在微波的辐照下，石墨烯吸收微波在10秒内快速升温至1000℃，为氨分解提供热能；石墨烯中近乎自由移动的π电子在微波场的作用下快速远动，与氨气分子发生碰撞激活氨气分子，产生放电等离子体；在热催化与等离子体催化的协同作用下实现氨分解；系统包括氨气瓶，氨气瓶通过气体质量流量计和石英反应器进口连通，石英反应器内放置有石墨烯，石英反应器放置在微波合成萃取仪中，石英反应器出口和洗气瓶进口连通，洗气瓶出口和气体收集装置进口连通；本发明在极短的时间内产生氢气，显著缩短了整个氨分解系统的启动时间；系统结构简单、操作方便，降低成本且更加节能环保。
Absstract of: CN119859812A
本发明公开了一种制氢装置，包括：电解结构和夹紧机构，夹紧机构包括正极压板、负极压板、正极板、负极板及调节组件，正极压板和负极压板相对，正极板和负极板对应垫设于正极压板和负极压板相对的两侧，电解结构夹设于正极板和负极板之间，调节组件连接于正极压板和负极压板之间，正极压板背对负极压板的一侧开设有进水接口、回水接口以及出氢接口；电解结构包括电解单元和外密封组件，外密封组件包括支撑圈和弹性密封圈，支撑圈套设于电解单元外，弹性密封圈套设于电解单元的外周，弹性密封圈的厚度既大于支撑圈的厚度，也大于电解单元的厚度。本发明可以确保具有较佳的密封性。
Absstract of: CN119859816A
本发明属于电解水制氢领域，具体公开了一种三金属位点协同调控的碱性电解水电极及其制备方法和应用。制备方法包括以下步骤：木质素磺酸盐氧化；氧化后木质素磺酸盐与金属盐混合，金属包括Ru、Ce、Sm，与基底载体一起进行水热反应，得到电极前驱体；煅烧电极前驱体，得到三金属位点协同调控的碱性电解水电极。与现有技术相比，本发明具有以下有益效果：基底与表面高活性组分结合更加紧密，避免了催化剂使用过程中的脱落现象。Sm、Ce掺杂对电极中活性Ru位点具有一定的电子调控和应变调控作用，从而提升电极的催化活性和反应稳定性。
Absstract of: CN119859811A
本发明涉及电解水制氢技术领域，公开了一种碱性制氢系统、控制方法、介质和产品，系统包括：电源模块、电解槽和辅助系统；电源模块分别与电解槽和辅助系统电连接；辅助系统包括控制子系统、气液分离子系统、水碱补充子系统；水碱补充子系统和电解槽管路连接，气液分离子系统与电解槽管路连接，控制子系统分别与气液分离子系统、水碱补充子系统和电解槽信号连接；电解槽中的隔膜采用有机‑无机复合隔膜。本发明通过有机‑无机复合隔膜阻隔氢气横向穿透到阳极侧，决定风光功率能够突破电解槽额定功率20％的限制，不会造成电解槽停机，使电解槽能够满足风光功率任意波动。
Absstract of: PL450203A1
Przedmiotem zgłoszenia jest sposób sprężania wodoru do wysokich ciśnień przy zastosowaniu CO2 w stanie nadkrytycznym, charakteryzujący się tym, że strumień gazu bogaty w wodór (3) miesza się w komorze mieszania (II) z strumieniem CO2 w jego punkcie krytycznym w temperaturze 36°C i pod ciśnieniem 72 bar, po czym otrzymany strumień mieszaniny wodoru i CO2 (5) poddaje się sprężaniu do uzyskania wymaganego wysokiego ciśnienia, a następnie sprężoną mieszaninę wodoru i CO2 strumieniem (6) kieruje się do elektrolizera węglanowego (IV), w którym pod wpływem przepuszczonego prądu elektrycznego (2) rozdziela się sprężoną mieszaninę (6) na strumień sprężonego wodoru (7) i strumień CO2 (4).
Absstract of: KR20250052581A
본 발명의 일 실시예는 이리듐 또는 이리듐 산화물 기반의 나노파이버에 전이원소 및 양이온 전형원소로 구성된 군에서 1종 이상이 도핑된 이리듐 나노파이버 촉매로 수전해, 연료전지, 일체형 재생 연료전지와 같은 수소 전기화학 디바이스에 들어가는 전극을 제조하여 디바이스들의 성능과 내구성을 극대화할 수 있는 이리듐 또는 이리듐 산화물 기반의 나노파이버 촉매와 이를 포함하는 전극을 제공하는 것이다.
Nº publicación: KR20250052527A 21/04/2025
Applicant:
HD HYUNDAI OILBANK CO LTD [KR]
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Absstract of: WO2025079900A1
The present invention provides a method for manufacturing a polymer electrolyte membrane for a water electrolysis or fuel cell, and a polymer electrolyte membrane manufactured thereby, the method allowing surface and internal quality of the polymer electrolyte membrane to be improved and drying efficiency to be enhanced.
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