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839
resultados
Última actualización
05/10/2025 [06:59:00]
Resultados 725 a 750 de 839
Resumen de: WO2025176298A1
Present invention relates to a method for the synthesis of ammonia, where a hydrogen (1) from an electrolyser (G) and a nitrogen (2) from a nitrogen production unit (D) are fed to a nitrogen-hydrogen mixture compression unit (A) and from there said mixture (3) is fed to an ammonia synthesis unit (B). Heat from steam-hydrogen steam from a electrolyser (G), heat generated during compression of the nitrogen-hydrogen mixture in the compressor stages of the nitrogen-hydrogen mixture compression unit, and heat released during the synthesis reaction in the ammonia synthesis unit, is used to generate steam for an electrolysis in the electrolyser. Liquid ammonia is separated from the circulation gas entering the separation unit from the steam generation unit using condensation at temperatures at an ambient environment temperature.
Resumen de: EP4606932A1
The various embodiments of the present invention disclose an electrolyser and a method for electrolysis of water. The system (100) comprises at least an electrolyser stack (101) producing a first gas-first electrolyte mixture at a first compartment of the stack (101), and a second gas-second electrolyte mixture at a second compartment of the stack (101). A first separator (103) receives the first gas-first electrolyte mixture via a first outlet (107) and separates a first electrolyte from a first gas. A second separator (104) receives the second gas-second electrolyte mixture via a second outlet (108) and separates a second electrolyte from a second gas. A first inlet (105c) transports at least the first electrolyte into the stack (101) and a second inlet (106c) transports at least the second electrolyte into the stack (101). A first suction line (105a) connects a first pump (109) and the first separator (103) and a first head line (105b) connects the first pump (109) and the first inlet (105c) of the stack (101). A second suction line (106a) connects a second pump (110) and the second separator (104), and a second head line (106b) connects the second pump (110) and the second inlet (106c) of the stack (101). An interconnect line (111) connecting the first head line (105b) and the second suction line (106a) is configured to supply a portion of the first electrolyte, at a predetermined mixing rate, from the first head line (105b) to the second suction line (106a). The predeter
Resumen de: KR20250128240A
산소 발생 반응(OER) 또는 산소 환원 반응(ORR)에 대한 촉매 활성을 갖는 층상형 금속 이중층 수산화물 촉매가 개시된다. 상기 층상형 금속 이중층 수산화물 촉매는 하기 화학식 1의 화학구조를 갖는다. 화학식 1 M11-(a+b)M2aY3+b(OH)2An-(a+b)/n·cH2O 상기 화학식 1에서, M1은 +2가의 산화상태를 갖는 제1 전이금속 양이온이고, M2는 +3가의 산화상태를 갖는 제2 전이금속 양이온이고, A는 -n의 산화상태를 갖는 층간 음이온이고, a, b는 각각 "0
Resumen de: WO2024133737A1
The invention relates to a metal body comprising a substrate (1) made of a metal material. At least one first layer (L1) made of Ni-X-Y is deposited onto the surface of the substrate (1), wherein X is a chemical element which is selected from Al, Zn, Mg, Mn, Sn and/or a plurality of the aforementioned elements and Y is a chemical element which is selected from Mo, Cr, Fe, Cu, Co, Ti, V, Ce and/or a plurality of the aforementioned elements. The at least one first layer (L1) has at least two lamellar regions with different phases in terms of the ternary phase diagram. In order to increase the specific surface area of the at least one first layer (L1), at least one of the lamellar phases which form a region of the at least one first layer (L1) is completely or partially leached.
Resumen de: AU2023389305A1
The present invention relates to an alkaline anion exchange membrane precursor (pAAEM) comprising a blend of at least one first polymer (P1) comprising repeating units derived from acrylonitrile and at least one second polymer (P2) comprising repeating units derived from a vinyl lactam, and an alkaline anion exchange membrane (AAEM) obtained therefrom.
Resumen de: US2024133066A1
An electrolysis cell system includes a cathode portion configured to output a cathode exhaust stream, an anode portion configured to output an anode exhaust stream, a sensor configured to detect a concentration in an exhaust stream and to output sensor data, wherein the sensor is either a hydrogen concentration sensor configured to detect a hydrogen concentration in the cathode exhaust stream or a water concentration sensor configured to detect a water concentration of the anode exhaust stream, and a controller. The controller is configured to receive the sensor data from the sensor and, based on the sensor data, control at least one of (a) an air pressure adjustment device to adjust a pressure of air entering the anode portion or (b) a steam pressure adjustment device to adjust a pressure of steam entering the cathode portion.
Resumen de: US2024133063A1
An electrolyzer system includes a vaporizer configured to store a first volume of liquid water and to vaporize water to humidify a cathode inlet stream of an electrolyzer cell module, a cold water tank positioned at a height greater than that of the first volume of liquid water and configured to store a second volume of water, and a valve configured to open and close. The water from the cold water tank is allowed to flow through the valve into the vaporizer when the valve is open.
Resumen de: GB2638623A
A hydrogen production facility 10 and associated method of use is disclosed, comprising a plurality of electrolyser stacks 12. The stacks 12 are for electrolyzing water, generating a hydrogen-aqueous solution mixture. A hydrogen separator 2 arrangement is described for producing a flow of hydrogen from the hydrogen-aqueous solution mixture. The hydrogen separator 2 arrangement comprises a plurality of first stage hydrogen collector separators 20,22, where the first stage hydrogen collector separators are fluidly coupled to a respective sub-set of the plurality of electrolyser stacks. The plurality of first stage hydrogen collector separators 20,22 are also fluidly coupled to a downstream hydrogen buffer vessel 28. The hydrogen separator 2 arrangement may comprise one or more hydrogen coalescing devices 16. A pressure balancing line 24 can also be provided between oxygen 22 and hydrogen separators 20 - it may also extend between hydrogen 28 and oxygen buffer 30 vessels.
Resumen de: GB2638622A
A hydrogen production facility 10 and associated method of use is disclosed, comprising a plurality of electrolyser stacks 12. The stacks 12 are for electrolyzing water, generating a hydrogen-aqueous solution mixture. A hydrogen separator 2 arrangement is described for producing a flow of hydrogen from the hydrogen-aqueous solution mixture. The hydrogen separator 2 arrangement comprises a plurality of first stage hydrogen collector separators 20,22, where the first stage hydrogen collector separators are fluidly coupled to a respective sub-set of the plurality of electrolyser stacks. The plurality of first stage hydrogen collector separators 20,22 are also fluidly coupled to a downstream hydrogen buffer vessel 28. The hydrogen separator 2 arrangement may comprise one or more hydrogen coalescing devices 16. A pressure balancing line 24 can also be provided between oxygen 22 and hydrogen separators 20 - it may also extend between hydrogen 28 and oxygen buffer 30 vessels.
Resumen de: GB2638621A
A hydrogen production facility 10 and associated method of use is disclosed, comprising a plurality of electrolyser stacks 12. The stacks 12 are for electrolyzing water, generating a hydrogen-aqueous solution mixture. A hydrogen separator 2 arrangement is described for producing a flow of hydrogen from the hydrogen-aqueous solution mixture. The hydrogen separator 2 arrangement comprises a plurality of first stage hydrogen collector separators 20,22, where the first stage hydrogen collector separators are fluidly coupled to a respective sub-set of the plurality of electrolyser stacks. The plurality of first stage hydrogen collector separators 20,22 are also fluidly coupled to a downstream hydrogen buffer vessel 28. The hydrogen separator 2 arrangement may comprise one or more hydrogen coalescing devices 16. A pressure balancing line 24 can also be provided between oxygen 22 and hydrogen separators 20 - it may also extend between hydrogen 28 and oxygen buffer 30 vessels.
Resumen de: WO2024086793A1
The present disclosure provides a catalyst, methods of manufacturing the catalyst, and methods for using the catalyst for ammonia decomposition to produce hydrogen and nitrogen. The catalyst may comprise an electrically conductive support with a layer of one or more metal oxides adjacent to the support and at least one active metal adjacent to the layer. Methods are disclosed for deposition of metal oxide and active metal, drying and heat treatment. The method of using the catalyst may comprise bringing ammonia in contact with the catalyst in a reactor. The catalyst may be configured to be heated to a target temperature in less than about 60 minutes, by passing an electrical current through the catalyst. The method of using the catalyst may comprise bringing the catalyst in contact with ammonia at about 450 to 700 °C, to generate a reformate stream with a conversion efficiency of greater than about 70%.
Resumen de: EP4606931A1
The present disclosure relates to a hydrogen production control system and method, and a storage medium. The hydrogen production control system includes a safety controller, a first valve and a second valve respectively connected to the safety controller, a hydrogen-production controller, a third valve and a fourth valve respectively connected to the hydrogen-production controller, an oxygen-side gas-liquid separation apparatus respectively in communication with the first valve and the third valve, and a hydrogen-side gas-liquid separation apparatus respectively in communication with the second valve and the fourth valve, where the hydrogen-production controller is configured to control a pressure in the oxygen-side gas-liquid separation apparatus through the third valve, and control a liquid level in the hydrogen-side gas-liquid separation apparatus through the fourth valve; and the safety controller is configured to: when a hydrogen production parameter is greater than or equal to a preset parameter alarm threshold, adjust the pressure in the oxygen-side gas-liquid separation apparatus through the first valve, and/or adjust the liquid level in the hydrogen-side gas-liquid separation apparatus through the second valve. In this way, system safety is effectively ensured, and production efficiency is improved.
Resumen de: WO2025173338A1
This pretreatment method comprises, prior to incorporating a mesh plate (80) into a cell, exposing the mesh plate (80) to ultrasonic waves while the mesh plate (80) is immersed in water. Hydrophilicity of the mesh plate (80) is thereby improved. Stagnation of gas in the mesh plate (80) when an electrochemical reaction is performed in a cell can therefore be suppressed. The efficiency of an electrochemical reaction in a cell can be improved as a result.
Resumen de: KR20250128257A
본 발명의 일 실시예는 니켈 폼 기판; 상기 니켈 폼 기판의 표면에 형성된 NiSe 나노 와이어 코어부; 및 상기 NiSe 나노 와이어 코어부의 표면에 형성된 Mo3Se4 쉘부;를 포함하는 것을 특징으로 하는 Mo3Se4-NiSe 코어-쉘 나노 와이어 어레이를 제공한다.
Resumen de: KR20250128239A
산소 발생 반응(OER) 또는 산소 환원 반응(ORR)에 대한 촉매 활성을 갖는 복합 촉매 구조체가 개시된다. 복합 촉매 구조체는, 다공성 금속 지지체; 상기 다공성 금속 지지체로부터 성장된 금속 질화물 나노시트; 및 상기 금속 질화물 나노시트의 표면 상에 배치된 층상형 금속 이중층 수산화물 나노시트;를 구비할 수 있다.
Resumen de: KR20250127881A
본 발명은 탄소지지체; 상기 탄소지지체 상에 형성된 폴리아닐린을 포함하는 코팅층; 및 상기 코팅층 상에 성장된 전이금속을 함유하는 촉매 구조체;를 포함하되, 상기 촉매 구조체는 전이금속 칼코겐 화합물 또는 전이금속 이중층수산화물인 바인더프리 전극을 제공한다. 본 발명에 따른 바인더프리 전극은 탄소 지지체를 촉매의 기판으로 하여 내구성 및 유연성이 우수하여 다양한 분야에 적용가능할 뿐만 아니라, 귀금속 촉매를 사용하지 않으면서도 높은 수소발생반응 또는 산소발생반응 활성을 구현할 수 있어 대규모 생산 시 비용상승 및 자원고갈의 문제를 해결할 수 있다.
Resumen de: US2024194916A1
A hydrocarbon feed stream is exposed to heat in an absence of oxygen to the convert the hydrocarbon feed stream into a solids stream and a gas stream. The gas stream is separated into an exhaust gas stream and hydrogen. The carbon is separated from the solids stream as a carbon stream. Electrolysis is performed on a water stream to produce an oxygen stream and hydrogen. The oxygen and a portion of the carbon are combined to generate power and a carbon dioxide stream. At least a portion of the carbon stream, cement, and water are mixed to form a concrete mixture. The concrete mixture can be used to produce ready-mix concrete and precast concrete. Carbon dioxide used for curing the concrete can be sourced from the carbon dioxide stream produced by power generation.
Resumen de: CN120532529A
本发明提供了一种基于静电纺丝法制备Ru基纳米粒子催化剂的方法，属于纳米材料制备领域本发明基于静电纺丝技术，对贵金属催化剂进行合理的设计、制备和优化，提高了析氧反应催化剂活性和稳定性同时提高Ru原子的利用率，降低了Ru基纳米粒子催化剂的制备成本，能够广泛应用于OER电催化研究中去。包括如下步骤：步骤一、在聚丙烯腈中引入RuP2的前驱体，之后加入N,N‑二甲基甲酰胺来配制纺丝液，再通过静电纺丝法制备Ru‑PAN纳米纤维膜；步骤二、将活化后的Ru‑PAN纳米纤维膜，在煅烧后获得RuP2纳米粒子负载在N掺杂的CNFs上的纳米复合材料，即Ru基纳米粒子催化剂。
Resumen de: CN120536942A
本发明公开了一种可以动态吹扫的电解水制氢装置，涉及电解水制氢技术领域，该可以动态吹扫的电解水制氢装置包括箱体，所述箱体内壁上安装有电解室，所述箱体一侧安装有气液分离罐，所述电解室阳极输出端与气液分离罐通过管道相连，所述空气压缩机输出端与气液分离罐通过空压风管道相连，所述空压风管道上安装有电磁阀，所述电磁阀与电解室电性连接，启动空气压缩机，压缩空气通过空压风管道进入气液分离罐内进行吹扫，可以根据电解室的工作功率相应控制空压风管道上电磁阀的工作状态，从而控制压缩空气的吹扫流量和吹扫频率，实现动态吹扫功能。
Resumen de: CN120536980A
本发明涉及一种用于控制碱性电解槽的温度的系统，其中，所述系统包括至少一个电解槽、氧气分离器、氢气分离器、碱液冷却器、碱液循环泵，所述氧气分离器和氢气分离器位于所述电解槽的下游，从所述氧气分离器和氢气分离器分离出来的碱液流动到所述碱液冷却器，所述碱液循环泵将来自所述碱液冷却器的碱液回流到所述电解槽中以实现电解液的循环，所述系统还包括控制器，所述控制器被构造成根据提供给所述电解槽的波动电源负荷、所述电解槽的温度和回流到所述电解槽中的碱液的流量来控制所述电解槽中的碱液的温度。
Resumen de: CN120536973A
本发明具体涉及一种自支撑非贵金属催化剂的制备及其在PEM中的应用，属于电催化技术领域。本发明将钴源、锆源制成金属靶材，采用脉冲激光沉积法将金属靶材沉积到处理后的衬底上，最后在空气中退火处理，制备出一种可以规模生产的PEM电解水非贵金属电催化剂。实验结果表明，本发明制备的自支撑非贵金属电解水催化剂在常温下具有高稳定性和催化活性，且非贵金属钴锆较贵金属铱钌价格低廉，储量丰富，对于降低工业化PEM电解水催化剂成本具有良好的指导作用。
Resumen de: CN120536944A
本发明涉及制氢技术领域，具体公开一种整合质子传导固体氧化物电解池和透氧膜的高效制氢系统，包括质子传导固体氧化物电解池和透氧组件；所述质子传导固体氧化物电解池包含有氧电极、电解质、燃料电极、燃料电极流道和氧电极流道；所述透氧组件具有透氧膜流道和透氧膜，所述氧电极流道与透氧膜流道被所述透氧膜分隔，所述氧电极流道中的水蒸气被电解时，以在所述氧电极中产生氧气，并在所述燃料电极产生纯净的氢气；在氧分压差的作用下，所述氧电极流道中的氧气能通过所述透氧膜，并进入所述透氧膜流道；该整合质子传导固体氧化物电解池和透氧膜的高效制氢系统可以高效制氢，降低电能损耗。
Resumen de: CN120532273A
本发明公开了一种电解水制氢两塔无损耗纯化干燥装置及其时序控制方法。将三通阀的输入口接高压氢气，三通阀的第一输出口与第一回氢阀的第一端连通；三通阀的第二输出口与第二回氢阀的第一端连通；第一回氢阀的第二端与第一干燥罐的第一端连通；第一干燥罐的第二端与第二干燥罐的第一端连通；第二干燥罐的第二端与第二回氢阀的第二端连通；第二回氢阀的第三端与第二冷却器的第一端连通，第二冷却器的第二端与气水分离罐的第一端连通；气水分离罐的第二端与流量调节阀的第一端连通；流量调节阀的第二端与第一冷却器的第一端连通，第一冷却器的第二端与第一回氢阀的第三端连通。本发明可以延长分子筛的再生间隔周期，从而降低综合制氢能耗。
Resumen de: CN120532716A
本发明属于膜电极喷涂技术领域，具体涉及一种PEM电解水制氢膜电极的梯度喷涂制备工艺。所述制备工艺包括以下步骤：配置浆料：制备PEM膜电极阳极催化层第一浆料和第二浆料，阴极催化层第一浆料和第二浆料，阳极催化层喷涂：第一层将PEM膜电极阳极催化层第一浆料超声喷涂质子交换膜上，随后将第二浆料超声喷涂质子交换膜上，两次喷涂的流速相同；依次顺序重复进行喷涂；阴极催化层喷涂：第一层将PEM膜电极阴极催化层第一浆料超声喷涂到质子交换膜上；随后将第二浆料超声喷涂到质子交换膜上，两次喷涂的流速相同；依次顺序重复进行喷涂。本发明制备的PEM电解水制氢膜电极能有效降低结构孔隙率，以减少气体传质阻力，提升质子传导效率，提高催化剂利用率。
Nº publicación: CN120536976A 26/08/2025
Solicitante:
西南石油大学成都升辉新能源科技发展合伙企业（有限合伙）
Resumen de: CN120536976A
本发明公开了一种海水直接制氢抗高盐抗腐蚀电解催化剂及其制备方法，该催化剂包括阳极催化剂TiN‑IrO2和阴极催化剂TiN‑MoS2；制备方法：(1)先将钛箔依次进行超声清洗，取出，洗涤，烘干，然后在钛箔上沉积TiN，得到TiN基底；(2)将TiN基底浸渍在IrCl3·3H2O和HCl的混合溶液中，搅拌，取出，焙烧，得到阳极催化剂TiN‑IrO2；(3)将TiN基底浸渍在Na2MoO4·2H2O和硫脲的混合溶液中，水热反应，取出，洗涤，真空烘干，得到阴极催化剂TiN‑MoS2。本发明电解催化剂成本低、抗高盐、抗腐蚀性强，实现了海水直接制氢的高效性和稳定性，成功克服了现有技术在海水直接制氢领域的高成本、制备复杂、稳定性不足、选择性差以及预处理需求等缺陷，为海水直接制氢提供了高效解决方案。
BOPI
Sede Electrónica
