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977
resultados
Última actualización
06/07/2025 [07:03:00]
Resultados 350 a 375 de 977
Resumen de: KR20250080331A
본 발명의 일실시예는 전기분해용 전극촉매의 제조 방법 및 이를 이용한 수계 내 총 유기탄소의 저감 방법에 관한 것이다.
Resumen de: KR20250080796A
본 발명은 초소수성 코팅층이 형성된 수전해용 분리막의 제조방법에 관한 것으로, 본 발명의 제조방법은 분리막의 제조 효율이 높을 뿐 아니라 제조 비용 및 궁극적으로 제품 판매 원가를 절감할 수 있으므로 산업적 효용가치가 매우 우수하다. 또한, 본 발명에 따른 초소수성 분리막은 수전해 공정에서 발생하는 수소 및 산소의 분리 효율이 높고, 수소 순도를 안정적으로 유지할 수 있으며, 수소 가스로의 산소 혼입 방지 성능이 탁월하여 폭발(화재) 위험을 원천적으로 차단할 수 있는 장점이 있다.
Resumen de: KR20250079969A
본 발명은 물분해용 비스무스 바나데이트 광전극 박막 제조방법 및 상기 전극의 몰리브덴 도핑 방법에 관한 것이다. 본 발명의 몰리브덴(Mo) 도핑된 BiVO4를 포함하는 비스무스 바나데이트 박막은 BiVO4 타겟과 MoO3 타겟을 이용하여 스퍼터링 방법으로 기판상에 동시에 증착하여 제조되며, 이렇게 몰리브덴 도핑된 비스무스 바나데이트 박막은 전기화학적 특성, 안정성 및 장기간 사용 가능성이 향상되고, 간단한 방법으로 최적의 몰리브덴 도핑 농도를 파악하여 결정 가능하다.
Resumen de: JP2025085515A
【課題】高い効率で水素を発生させることができる鉄基粉末を提供する。【解決手段】Ｃｕ－Ｋα線を用いたＸ線回折の回折ピークの内、α－Ｆｅ結晶の（１１０）回折面に相当する回折強度曲線の半価幅が０．０３°以上０．６０°以下の範囲である水素製造用鉄基粉末。【選択図】なし
Resumen de: JP2025085516A
【課題】高い効率で水素を発生させることができる鉄基粉末を提供する。【解決手段】Ｘ線回折の回折ピークの内、α－Ｆｅ結晶の（１１０）回折面に相当する回折強度曲線から求められる格子面間隔が２．０００Å以上２．１００Å以下の範囲である水素製造用鉄基粉末。【選択図】なし
Resumen de: WO2025116392A1
One embodiment of the present invention relates to a hydrogen production reactor for producing hydrogen by decomposing ammonia. The hydrogen production reactor comprises: a housing; at least one reaction tube provided inside the housing and having an inlet into which a reactant containing ammonia flows in: a heating unit for providing heat to the reaction tube; a preheating unit provided in the reaction tube and extending in one direction; and a catalyst layer positioned downstream of the preheating unit and extending in one direction, wherein the preheating unit is filled with an oxide containing magnesium oxide (MgO).
Resumen de: WO2025116600A1
Disclosed is a catalyst for a hydrogen evolution reaction or a hydrogen oxidation reaction, which can be used under alkaline conditions and has significantly improved kinetic properties compared to conventional commercially-available platinum catalysts. The present invention provides a catalyst for electrochemical hydrogen reactions under alkaline conditions, which has 2 to 20 ruthenium atoms supported in an ensemble form on the surface of a molybdenum carbide-carbon nanocomposite support, and a manufacturing method therefor, and a ruthenium-based catalyst electrode comprising the catalyst, which can be used as an electrode for anion exchange membrane-based water electrolysis cells and fuel cells.
Resumen de: WO2025116572A1
The present invention relates to an electrode for water electrolysis for hydrogen production and a manufacturing method therefor. The manufacturing method according to the present invention achieves a simpler process compared with an existing iridium (IrO2) electrode manufacturing process, uses low thermal energy, shortens the time required for, especially, heat curing, facilitates the thickness adjustment of a coating layer, and can manufacture an electrode for water electrolysis at relatively low facility costs and manufacturing costs, and requires less time, labor, and energy to perform steps of the process. In addition, the electrode for water electrolysis obtained by the manufacturing method according to the present invention not only possesses generally required electrochemical stability and chemical resistance, but also exhibits high discharge efficiency of generated bubbles while preventing defects due to voids in an actual hydrogen manufacturing process.
Resumen de: WO2025116571A1
The present disclosure relates to a manufacturing method for a separator for water electrolysis having a superhydrophobic coating layer. The manufacturing method of the present disclosure not only has high efficiency of manufacturing the separator, but also can reduce manufacturing costs and ultimately product sales costs, and thus has excellent industrial utility value. In addition, the superhydrophobic separator according to the present disclosure has high efficiency of separating hydrogen and oxygen generated in a water electrolysis process, can stably maintain hydrogen purity, and has excellent performance in preventing oxygen from being mixed into hydrogen gas, and thus can fundamentally block the risk of explosion (fire).
Resumen de: WO2025116024A1
Provided is a catalyst for hydrogen generation comprising a mixture of tungsten carbide and cobalt, the catalyst for hydrogen generation being characterized in that the absolute value of the cathode current per mg of the catalyst is 0.10 mA/mg or more when the catalyst for hydrogen generation is loaded on a glassy carbon electrode and subjected to potential scanning at -1.2 V with respect to a silver/silver chloride reference electrode under nitrogen bubbling in a 1 mol/L sodium hydroxide aqueous solution.
Resumen de: WO2025113866A1
The invention relates to a process (100) for the production of hydrogen from ammonia comprising the following steps: - providing a water feed stream to a water electrolyzer (101); - performing a water electrolysis (102) of the water feed stream in the electrolyzer, producing an oxygen product stream and an electrolysis hydrogen stream; - providing an ammonia feed stream to an ammonia cracking reactor (103); - providing an oxidant stream (105) and performing a combustion reaction (106) with said oxidant stream, thereby generating heat; - in the ammonia cracking reactor, performing an endothermic reaction of ammonia cracking (104) of the ammonia feed stream with said generated heat; characterized in that the oxidant stream comprises at least a portion of the oxygen product stream produced by the water electrolysis of the water feed stream.
Resumen de: WO2024023030A2
A method of electrolysing hydrogen bromide comprising the steps i) synthesizing sulfuric acid such that hydrogen bromide is produced, ii) providing an electrolytic cell comprising an anode, a cathode, and a membrane sandwiched between the anode and the cathode, iii) feeding a first composition comprising hydrogen bromide and water to the anode, iv) feeding a second composition comprising hydrogen bromide and water to the cathode, and v) operating the electrolytic cell to produce hydrogen at the cathode.
Resumen de: DK202330316A1
An alkaline electrolyzer comprising a stack (17) of electrolytic cells (1) is used for producing hydrogen gas (8). Each of the cathode compartments (5) comprises a cathode gas outlet (23A) into a cathode electrolyte return conduit (22A), the downstream end (41) of which is connected to a hydrogen purifier (33) configured for providing purified hydrogen gas by removing oxygen from the gas received from the cathode electrolyte return conduit (22A). A cathode gas recirculation system (38) connects a downstream end of the hydrogen purifier (32,33) to an upstream end (40) of the cathode electrolyte return conduit (22A) for supplying purified hydrogen gas to the cathode electrolyte return conduit (22A). Alternatively, or in addition, each of the anode compartments (6) comprises an anode gas outlet (23B) into an anode electrolyte return conduit (22B), the downstream end (41) of which is connected to an oxygen purifier (33), configured for providing purified oxygen gas by removing hydrogen from the gas coming from the anode electrolyte return conduit (22B). An anode gas recirculation system (38) connects a downstream end (41) of the oxygen purifier (33) to an upstream end (40) of the anode electrolyte return conduit (22B) for supplying purified oxygen gas to the anode electrolyte return conduit (22B). By recirculating purified gases through the electrolyte return conduits, the electrolyzer can operated at part load, for example below 10% of the nominal load.
Resumen de: CN119604644A
A process for producing hydrogen and/or bromine by electrolyzing hydrogen bromide in the electrolysis of hydrogen bromide using a fluoropolymer membrane having a glass transition temperature Tg > = 110 DEG C, wherein the hydrogen bromide is derived from the bromination of hydrocarbons.
Resumen de: CN119604644A
A process for producing hydrogen and/or bromine by electrolyzing hydrogen bromide in the electrolysis of hydrogen bromide using a fluoropolymer membrane having a glass transition temperature Tg > = 110 DEG C, wherein the hydrogen bromide is derived from the bromination of hydrocarbons.
Resumen de: US2025171388A1
The disclosure provides a process for producing methanol and hydrogen from methane. The process of the disclosure comprises the steps of: •a) providing a gaseous feed stream comprising methane: •b) reacting said gaseous feed stream with at least one halogen reactant •under reaction conditions effective to produce an effluent stream comprising methyl halide, hydrogen halide •optionally poly halogenated alkanes •and optionally unreacted methane: •c) recovering said an effluent stream •d) reacting the recovered effluent stream with water and at least one organic base under reaction conditions effective to produce an aqueous solution of hydrogen halide •and a methanol stream comprising methanol (MeOH) and dimethyl ether (DME) and/or optionally unreacted methane, and, c) decomposing by means of electrolysis said aqueous solution of hydrogen halide under conditions effective to produce a gaseous hydrogen stream and a stream comprising halogen reactant.
Resumen de: US2025171388A1
The disclosure provides a process for producing methanol and hydrogen from methane. The process of the disclosure comprises the steps of: •a) providing a gaseous feed stream comprising methane: •b) reacting said gaseous feed stream with at least one halogen reactant •under reaction conditions effective to produce an effluent stream comprising methyl halide, hydrogen halide •optionally poly halogenated alkanes •and optionally unreacted methane: •c) recovering said an effluent stream •d) reacting the recovered effluent stream with water and at least one organic base under reaction conditions effective to produce an aqueous solution of hydrogen halide •and a methanol stream comprising methanol (MeOH) and dimethyl ether (DME) and/or optionally unreacted methane, and, c) decomposing by means of electrolysis said aqueous solution of hydrogen halide under conditions effective to produce a gaseous hydrogen stream and a stream comprising halogen reactant.
Resumen de: CN119698495A
A process for the production of hydrogen comprising the steps of: a) providing a starting mixture comprising bromine, water and a sulfur-containing compound, b) reacting the starting mixture provided in step a) to produce a reaction mixture effluent comprising sulfuric acid and hydrogen bromide, c) separating the reaction mixture effluent obtained in step b) into one or more hydrogen bromide-enriched compositions and one or more sulfuric acid-enriched compositions, where at least one hydrogen bromide-enriched composition contains up to 1,000 ppm sulfuric acid, where step c) comprises at least two distillation steps, d) separating the reaction mixture effluent obtained in step c) containing up to 1,000 ppm sulfuric acid, at least a portion of the at least one hydrogen bromide-enriched composition comprising at least one hydrogen bromide-enriched composition comprising at least 50,000 ppm sulfuric acid and at least 50,000 ppm sulfuric acid is subjected to electrolysis to obtain hydrogen and a bromine-containing composition wherein the electrolysis cell is operated at an operating temperature of at least 70 DEG C, and e) recycling at least a portion of the bromine-containing composition obtained in step d) back to step a).
Resumen de: EP4563524A1
The present invention relates to a method and device for producing hydrogen by dissociating the water molecule through thermochemical reactions, using a small amount of active material. The thermochemical reactions are induced by solar energy with a moderate concentration of up to 50 suns, which can be achieved through linear or parabolic concentrators.
Resumen de: EP4563494A1
The present invention provides a container and a hydrogen production system. The container includes a bottom base, an upper cover, a first side plate, and a driving device. The first side plate is arranged between the bottom base and the upper cover, and is connected to the bottom base and the upper cover separately; and the driving device is connected to the first side plate and is configured to drive the first side plate to rotate relative to the bottom base, and the first side plate drives the upper cover to move, to switch the container from a closed state to an open state. The container in the present invention can implement hoisting of a device, so that a process in which the device is placed in the container is simplified, and the design efficiency of the hydrogen production system is improved. In addition, it is convenient for personnel to enter the container for device overhaul and maintenance, thereby effectively resolving the problem of inconvenient maintenance on the device after the device is placed in the container.
Resumen de: EP4564633A1
Disclosed in the present application are a power system and a frequency modulation control method therefor. The method comprises: first, determining whether the current power grid frequency of a power system falls within a preset allowable frequency deviation range; if not, performing calculation according to the current power grid frequency and a power grid rated frequency to obtain an input current change value of a hydrogen production power generation unit in the power system; on the basis of the size relationship between the input current change value and limit values thereof and the size relationship between the changed input current value and limit values thereof, determining a target input current of the hydrogen production power generation unit; and finally, adjusting an input current of the hydrogen production power generation unit according to the target input current, so as to allow the power grid frequency of the power system to fall within the preset allowable frequency deviation range. Therefore, by means of the relationship between system power consumption and frequency fluctuation, the present application can guide input current setting for the hydrogen production power generation unit on the basis of a measured system frequency to achieve frequency modulation control of the power system, thus solving the problem of frequency fluctuation of power grid systems caused by randomness and fluctuation of renewable energy power generation.
Resumen de: EP4563350A1
An electrolysis device configured to produce hydrogen gas from water, the electrolysis device comprising a container (4), the container accommodating an aqueous alkaline solution (5), a cathodic electrode (1), and an anodic electrode (2), an electrical current being selectively applied between the cathodic electrode and the anodic electrode, wherein the cathodic electrode and possibly the anodic electrode, is made of a nickel alloy, with a nickel base alloyed with at least one element chosen among chromium, molybdenum, cobalt and iron, wherein the cathodic electrode and the anodic electrode are manufactured by an additive manufacturing process, from respective first and second mixed metallic powder compounds, wherein the cathodic and anodic electrodes exhibit an outer surface comprising a plurality of first surface patterns (6,7).
Resumen de: EP4563725A1
Es wird ein Verfahren (100) zur Herstellung eines Syntheseprodukts (6) vorgeschlagen, bei dem gasförmiger Wasserstoff (3) durch Elektrolyse (10) von Wasser (1) bereitgestellt und mit einem oder mehreren gasförmigen Reaktionspartnern (4) einer Umsetzung (30) zu dem Syntheseprodukt (6) unterworfen wird, wobei während eines ersten Verfahrensmodus der Wasserstoff (3) und der eine oder die mehreren Reaktionspartner (4) unter Erhalt eines Reaktionsgemischs (5) vermischt werden und das Reaktionsgemisch (5) oder ein Teil hiervon in einer Speichereinheit (20) druckgespeichert wird, und wobei während eines zweiten Verfahrensmodus das in dem ersten Verfahrensmodus druckgespeicherte Reaktionsgemisch (5) oder ein Teil hiervon aus der Speichereinheit (20) entnommen und der Umsetzung (30) zu dem Syntheseprodukt (6) zugeführt wird. Eine entsprechende Anlage wird ebenfalls vorgeschlagen.
Resumen de: EP4563523A1
The invention relates to a process (100) for the production of hydrogen from ammonia comprising the following steps:- providing a water feed stream to a water electrolyzer (101);- performing a water electrolysis (102) of the water feed stream in the electrolyzer, producing an oxygen product stream and an electrolysis hydrogen stream;- providing an ammonia feed stream to an ammonia cracking reactor (103);- providing an oxidant stream (105) and performing a combustion reaction (106) with said oxidant stream, thereby generating heat;- in the ammonia cracking reactor, performing an endothermic reaction of ammonia cracking (104) of the ammonia feed stream with said generated heat;characterized in that the oxidant stream comprises at least a portion of the oxygen product stream produced by the water electrolysis of the water feed stream.
Nº publicación: EP4563727A2 04/06/2025
Solicitante:
BLOOM ENERGY CORP [US]
Bloom Energy Corporation
Resumen de: EP4563727A2
A method of operating an electrolyzer system includes providing steam from a steam source through a system steam conduit to module steam conduits located in respective electrolyzer modules, controlling a flow rate of the steam through the system steam conduit using a system mass flow controller located on the system steam conduit, providing portions of the steam to the module steam conduits and providing steam in the module steam conduits to respective stacks of electrolyzer cells located in respective hotboxes in the respective electrolyzer modules, and operating the stacks to generate a hydrogen product stream and an oxygen exhaust stream.
BOPI
Sede Electrónica
