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05/05/2025 [06:59:00]
Resultados 625 a 650 de 771
Resumen de: WO2025052215A1
An apparatus and a method for production of green hydrogen using steam generated during the production of green ammonia controls: (i) a supply of steam from an ammonia reactor unit to a heat exchange unit at a first timestamp; (ii) the heat exchange unit to extract a pre-determined amount of heat from steam, and to transfer a pre-determined amount of heat to a water supply unit. The apparatus also controls the water supply unit to increase the water temperature from a first temperature value to a second temperature value using a transferred, pre-determined amount of heat. The apparatus also controls the water supply to an electrolyzer unit. The apparatus also controls the ammonia reactor unit to produce green ammonia and steam at a second timestamp using produced green hydrogen. The apparatus also controls an ammonia storage unit to store produced green ammonia at the first and second timestamps.
Resumen de: WO2025051333A1
The invention relates to a plate-like element (10) of a cell stack (2) of an electrochemical system (1), having a first plate side (26), a second plate side (27), a plurality of openings (13, 21, 22, 23, 23') and a first structure (14) for forming a flow field for coolant and several further structures (14') for forming distributors for operating media on the first plate side (26). The structure (14) comprises a coolant conducting structure (15, 16) through which a first coolant path (15) and a second coolant path (16) arranged mirror-symmetrically thereto are formed, each of which have, starting from one of the openings (21), an elongate inflow portion (17), a centre portion (18) which starts from the inflow portion (17), fans out and describes at least one meandering bend (19), and an elongate outflow portion (20) which adjoins the centre potion (18) and is narrower than the centre portion (18). A longitudinal axis (30) of the inflow portion (17) of the first coolant path (15) matches a longitudinal axis (30) of the outflow portion (20) of the second coolant path (16), and a longitudinal axis (30') of the inflow portion (17) of the second coolant path (16) matches a longitudinal axis (30') of the outflow portion (20) of the first coolant path (15). The invention also relates to a cell stack (2) comprising a plurality of such plate-like elements (10) which are parallel to one another.
Resumen de: CN119156465A
In a process for producing a metal borohydride M (BH4) n from a metal metaborate M (BO2) n, where M is a metal, such as a metallic metal, an alkali metal, an alkaline earth metal, a transition metal or a chemical compound exhibiting metallic properties, and n is the valence of the metal, the metal borohydride is formed by reacting a metal hydride MHn with trimethyl borate B (OMe) 3, and the metal trimethyl borate is formed by the reaction of boric acid H3BO3 and methanol MeOH under the removal of water H2O. In an electrochemical cell, the electrochemical cell is used to convert metal metaborate and water H2O into boric acid. An electrochemical cell has an anode half-cell and a cathode half-cell separated by a cation exchange membrane, and both the anode half-cell and the cathode half-cell are provided with a solvent and water. The metal metaborate is provided to the anode half-cell wherein acid ions H + and electrons e-are generated at the anode by electrolysis of water, and H + reacts with the metal metaborate and water. The cation exchange membrane may transfer the metal ion Mn + from the anode half-cell to the cathode half-cell and form a metal hydroxide M (OH) n in the cathode half-cell.
Resumen de: KR20250035333A
본 개시는, 전기화학적 가스 생산을 위한 전극, 이의 제조방법 및 이를 포함하는 전기화학적 가스 생산을 위한 시스템을 제공한다. 전기화학적 가스 생산을 위한 전극은, 금속막; 및 상기 금속막 상에 열린 기공을 갖는 하이드로젤 기반의 유기박막;을 포함할 수 있다.
Resumen de: WO2024008395A2
The present invention relates to a bipolar plate (100) for a chemical energy converter (200, 300). The bipolar plate (100) comprises: - a plurality of channels (101) for guiding operating media of the energy converter (200, 300), - a plurality of supply openings (103) for supplying the plurality of channels (101) with operating media, - a plurality of distribution channels (105) for distributing operating media to the plurality of channels (101), wherein respective distribution channels (105) of the plurality of distribution channels (105) extend between respective supply openings (103) of the plurality of supply openings (103) and respective channels (101) of the plurality of channels (101), and wherein respective supply openings (103) of the plurality of supply openings (103) have, on a distribution channel side which faces respective distribution channels (105) of the plurality of distribution channels (105), a curved edge region, at least in some regions.
Resumen de: KR20250035312A
고농도 전해액 탱크; 상기 고농도 전해액 탱크로부터 제1 농도의 전해액을 공급받아 제2 농도의 전해액으로 희석하는 저농도 전해액 탱크; 상기 고농도 전해액 탱크로부터 상기 제1 농도의 전해액을 공급받는 알칼리 수전해 스택; 상기 저농도 전해액 탱크로부터 상기 제2 농도의 전해액을 공급받아 수소를 생성하는 음이온교환막 수전해 스택; 및 상기 알칼리 수전해 스택에서 생성된 제1 수소와 상기 음이온교환막 수전해 스택에서 생성된 제2 수소의 수분을 제거하여 건조 수소를 배출하는 드라이어를 포함하는 통합 수전해 시스템은 저렴한 가격에 대용량의 수소를 생산할 수 있는 알칼리 수전해 방식과 비귀금속 촉매를 사용하여 비교적 저렴한 비용으로 순도가 높은 수소를 생산할 수 있는 음이온교환막 방식을 모두 이용할 수 있는 수전해 시스템을 제공할 수 있다.
Resumen de: WO2025047069A1
Provided are: a water electrolysis system capable of providing an adjustment force solely by the water electrolysis system; and a method for operating the water electrolysis system. This water electrolysis system generates hydrogen gas and oxygen gas as generated gases from water by applying grid power to a plurality of water electrolysis stacks through a rectifier, and adjusts power consumption in accordance with an instruction to provide adjustment force, and is characterized in that, when the instruction to provide the adjustment force is received within a contract time zone in which provision of the adjustment force is contracted, the amount of water supplied to the water electrolysis stacks, the temperature of the water electrolysis stacks, and pressure can be controlled according to the amount of power obtained by adding, to the amount of power consumption of the water electrolysis stacks, the amount of power of the adjustment force to be provided.
Resumen de: EP4521045A2
An apparatus and process for pre-liquefaction processing of a fluid (e.g., hydrogen) can permit a reduction in capital costs and also an improvement in operational efficiency in flexibility. Embodiments can be configured to account for large variations in feed to be provided for liquefaction and also permit capital cost reductions associated with pre-liquefaction processing so the overall capital cost for liquefaction can be greatly reduced while also providing improved operational flexibility. For instance, embodiments can be configured to utilize one or more common pre-liquefaction processing elements to treat a fluid for precooling of a fluid to a pre-selected liquefaction feed temperature.
Resumen de: CN119156365A
A process for manufacturing methanol having a deuterium content of less than 90 ppm based on the total hydrogen content, the process comprising the steps of: (a) providing hydrogen having a deuterium content of less than 90 ppm based on the total hydrogen content by water electrolysis using power generated at least in part from non-fossil renewable resources; (b) providing carbon dioxide; (c) reacting hydrogen and carbon dioxide in the presence of a catalyst to form methanol.
Resumen de: AU2023264575A1
Provided herein are systems and methods for generating hydrogen and ammonia. The hydrogen is generated in an anion exchange membrane-based electrochemical stack. The hydrogen generated in the stack may be used to generate ammonia or may be used for other applications requiring hydrogen. The feedstock for the anion exchange membrane-based electrochemical stack may be saline water, such as seawater. A desalination module or a chlor-alkali stack may be used to treat the saline water prior to electrolysis in the anion exchange membrane-based electrochemical stack.
Resumen de: GB2633496A
A passive dual modulating regulator that responds to a pressure differential between a hydrogen-side and an oxygen-side of one or more proton-exchange membrane (PEM) cells is provided. The passive dual modulating regulator includes a flexible diaphragm that is clamped along its periphery between hemispherical chambers. A bi-directional valve assembly extends through the flexible diaphragm and includes opposing valve plugs for selectively closing the output ports of the respective hemispherical chambers. Large or sustained pressure imbalances between the hydrogen-side and the oxygen-side of a hydrogen generation system are avoided without active control inputs of any kind, and consequently a rupture of the PEM is entirely avoided.
Resumen de: WO2023214401A1
The present disclosure provides a catalyst, its preparation and uses thereof, the catalyst comprising a conductive substrate coated by at least two layers including a proximal layer and a distal layer wherein said proximal layer comprises a proximal metal composition and said distal layer comprise a distal metal composition, the proximal metal composition being different from the distal metal composition; wherein said proximal metal composition comprises a metallic M and said distal metal composition comprise a combination of two or more different metal complexes, each having a formula MxLy, wherein M, which may be the same or different in said two or more metal complexes, represents a metal atom; L, which may be the same or different in said two or more metal complexes, represents a moiety comprising at least one atom selected from the group consisting of oxygen (O), phosphorous (P), boron (B) and nitrogen (N); x represents any value between (1) and (6); and y represents any value between (1) and (6); and wherein said metal atom of metallic M and said metal atom in MxLy may be the same or different metal atom.
Resumen de: WO2023213370A1
Aspects of the present invention relate to a renewable energy power plant for connection to a power network. The renewable energy power plant comprises: a wind turbine generator (WTG); a hydrogen generating system comprising: a hydrogen electrolysis system operable to generate hydrogen through electrolysis using power generated by the WTG; and a DC-link for electrically coupling the WTG to the hydrogen electrolysis system; a connecting network for selectively connecting the power plant to the power network; a power balancing system comprising one or more energy sources and one or more energy loads for balancing electrical power differences between the power generated by the WTG and the power consumed by the hydrogen electrolysis system; and a control system for controlling the WTG, the connecting network, the power balancing system, and the hydrogen electrolysis system to control the voltage on the DC-link to remain within a predetermined range.
Resumen de: WO2024241056A1
The specification describes a process for preparing an oxygen evolution reaction catalyst, comprising the steps of: (i) combining iridium powder and a peroxide salt to produce a powder mixture; (ii) carrying out thermal treatment on the powder mixture; (iii) dissolving the product from (ii) in water to produce a solution; (iv) reducing the pH of the solution from (iii) to affect a precipitation and form a solid and a supernatant; (v) separating the solid from the supernatant; and (vi) drying the solid. An oxygen evolution catalyst obtainable by the process is also described.
Resumen de: DK202300543A1
Disclosed is an apparatus for generating electricity onboard a vehicle. The apparatus comprises an electricity generation system comprising a fuel inlet, an electrolyser system for receiving the fuel via the fuel inlet and for generating a hydrogen stream and a carbon dioxide stream. The electrolyser system comprises a gaseous carbon dioxide outlet for discharging the carbon dioxide stream and a hydrogen outlet for discharging the hydrogen stream. The apparatus further comprises an electricity generator for electrochemically generating electricity using the hydrogen stream. The electricity generator comprises a hydrogen inlet fluidically connectable or connected to the hydrogen outlet, an electrical outlet for supplying the electricity to the device, and a waste fluid outlet for discharging waste fluid. The apparatus comprises a carbon dioxide capture system including a gaseous carbon dioxide inlet fluidically connectable or connected to the gaseous carbon dioxide outlet, whereby the carbon dioxide capture system is adapted to receive and store the carbon dioxide.
Resumen de: CN119588387A
本发明公开了一种自支撑型CoNiC/CoNibc催化剂、制备方法及其在高效电催化水解与可充电锌‑空气电池方面的应用。本发明通过水热法与煅烧法结合进行材料制备，水热法生成自支撑基底上负载CoNibc，煅烧时表面的CoNibc发生分解‑再合成，最终实现CoNiC/CoNibc的原位合成；该合成模式不仅克服了非自支撑型材料表面负载物易于脱落、稳定性差的缺点，而且保证了复合材料整体的稳定性。此外，所合成的CoNiC超薄纳米片形貌极大地增加了活性位点的暴露量，提升了复合材料整体的催化活性。与此同时，耐碱耐热的廉价不锈钢网自支撑基底的引入不仅提升了复合材料的导电性，而且保证了锌‑空气电池高浓度电解液环境下的稳定工作。该催化剂具有高效催化水解活性和长时间的可充放电循环性能。
Resumen de: CN118742674A
An SOC stack system includes one or more solid oxide cell stacks and a multi-stream solid oxide cell stack heat exchanger.
Resumen de: KR20250034633A
본 발명에 의하면, 액체 상태의 물을 가열하여 수증기를 발생시키는 제1, 제2 증기 발생기와, 상기 수증기를 전기분해하여 수소와 산소를 분리시켜서 생성하는 수전해기를 구비하는 고온 수전해 설비; 탈수소화된 LOHC(Liquid Organic Hydrogen Carrier)에 대한 수소화 반응을 수행하여 수소화된 LOHC를 생성하는 LOHC 수소화 설비; 및 순환 유동하는 작동 유체를 가열하는 원자로와, 상기 작동 유체의 유동에 의해 회전하는 터빈과, 상기 터빈의 회전력에 의해 구동되어서 전기 에너지를 생산하는 발전기를 구비하는 원자력 발전 설비를 포함하며, 상기 작동 유체 중 일부는 상기 제1 증기 발생기의 열원으로 공급되며, 상기 제2 증기 발생기는 상기 수소화 반응에 의해 발생하는 반응열의 적어도 일부를 열원으로 사용하며, 상기 고온 수전해 설비는 상기 원자력 발전 설비로부터 전력을 공급받는 수소 에너지 복합 관리 시스템이 제공된다.
Resumen de: US2025075312A1
Provided is a separator processing device for an electrochemical apparatus, the separator processing device including a vacuum chamber, a susceptor provided in the vacuum chamber and configured to allow a separator to be seated thereon, and a sputtering target provided on the vacuum chamber and including target elements and luminescent elements that are to be deposited on the separator, thereby obtaining an advantageous effect of accurately detecting the lifespan of the sputtering target and the timing of replacement of the sputtering target.
Resumen de: US2025059657A1
A catalyst coated membrane for a water electrolyser, the catalyst coated membrane comprising: an ionomer membrane having a first surface and a second surface; an anode catalyst layer on the first surface of the ionomer membrane; and a cathode catalyst layer on the second surface of the ionomer membrane, wherein the ionomer membrane comprises reinforcement material, and wherein the reinforcement material is distributed asymmetrically relative to a central plane of the ionomer membrane such that its average location is closer to the anode catalyst layer than the cathode catalyst layer.
Resumen de: WO2024027968A1
The invention relates to a process of manufacturing an electrocatalyst for alkaline water electrolysis, the method comprising the steps of: (i) producing an aqueous electrolyte comprising suspended graphene and graphite nanoplatelet structures having a thickness of <100 nm in an electrochemical cell, wherein the cell comprises: (a) a negative electrode which is graphitic, (b) a positive electrode which is graphitic, (c) an aqueous electrolyte which comprises ions in a solvent, said ions comprising cations and anions, wherein said anions comprise sulphate anions; and wherein the method comprises the step of passing a current through the cell to obtain exfoliated graphene and graphite nanoplatelet structures in the aqueous electrolyte in an amount of more than 5 g/l; (ii) composing an electroplating bath (2) comprising suspended graphene and graphite nanoplatelet structures in an amount of more than 2 g/l, the acidic electroplating bath comprising of an aqueous solution of nickel sulphate and the aqueous electrolyte comprising the suspended graphene and graphite nanoplatelet structures having a thickness of <100 nm in an amount of more than 5 g/l of step (i); and (iii) electrodepositing from the electroplating bath a combined layer of Ni or Ni-alloy and graphene and graphite particles on a carrier to form an electrocatalyst.
Resumen de: WO2024022768A1
A hydrogen production system (1) comprising: a first renewable power source (3-1), a first electrolyser (7-1), and a single stage power converter (5) having an input side (5a) and an output side (5b), wherein the input side (5a) is connected to the first renewable power source (3-1) and the output side (5b) is connected to the first electrolyser (7-1).
Resumen de: CN119592994A
本发明公开了一种Ir基金属间化合物电催化剂及其制备方法与应用，所述催化剂包括载体和负载在载体上的金属间化合物，所述金属间化合物的化学式为IrMo1‑xCex，x＝0.1～0.3；其制备方法为：(1)将铱盐溶液、钼盐溶液和铈盐混合均匀，加入水和碳黑，混合均匀得到金属盐前驱体混合液，将混合液干燥后得到金属盐前驱体负载的碳黑；(2)将前驱体负载的碳黑在氩气的环境下对其进行焦耳加热处理，结束后取出洗涤、干燥，得到最终产物。本发明引入Ce元素，显著优化了Ir，Mo的电子结构，增强了电催化析氢反应活性，展现出了巨大的能源应用前景。
Resumen de: CN119592974A
本发明公开了一种原位制备聚苯硫醚基膜电极的方法，包括：将聚苯硫醚布进行等离子体处理，再浸泡于酸性溶液或碱性溶液中，然后清洗后干燥，得到亲水聚苯硫醚隔膜；然后在亲水聚苯硫醚隔膜表面浇筑一层掺有稀土离子或铁系元素离子的PAN或PVP溶液，干燥后，得到复合聚苯硫醚隔膜；利用二氧化碳激光雕刻对复合聚苯硫醚隔膜中含有稀土离子或铁系元素离子的PAN或PVP聚合物层进行激光雕刻，形成稀土离子或铁系元素离子掺杂的石墨烯，得到碱性电解水用聚苯硫醚基膜电极。本发明对温度的要求较为宽松，简单可行，安全可控，能耗低，在膜表面原位生成电极材料，减少了后期使用过程中电极脱落的可能。
Nº publicación: CN119604360A 11/03/2025
Solicitante:
株式会社化学
Resumen de: WO2024172438A1
The present invention relates to a catalyst for the decomposition of ammonia, and a method for the decomposition of ammonia.
BOPI
Sede Electrónica
