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118
resultados
Última actualización
02/11/2026 [10:00:00]
Resumen de: US20260307984A1
A method of ammonia (NH3) decomposition includes flowing hydrogen (H2) through a reactor containing a catalyst to reduce the catalyst and flowing an NH3 mixture through the reactor at a temperature of 100 to 800 degrees Celsius (° C.) to decompose the NH3. The catalyst is a metal-doped lanthanum manganite material (LaMnO3) including cobalt (Co) and nickel (Ni) each in an amount of 0.1 to 2.0 percent by weight (wt. %) based on a total weight of the metal-doped LaMnO3 material. The NH3 mixture includes NH3 and helium in a volumetric ratio of 5:95 to 15:85. At least 99 wt. % of NH3 is decomposed to form H2 and N2 at a temperature of 550° C. based on an initial amount of the NH3.
Resumen de: FI20253120A1
The present disclosure relates to an electrolysis apparatus drain (2) system comprising a storage vessel (16) configured to receive an extracted fluid and a pressure regulation valve (28) fluidly connected to the storage vessel (16) and provided downstream of the storage vessel (16). A drain valve (30) is configured to control flow of the extracted fluid from the storage vessel (16) and provided downstream of the pressure regulation valve (28). An upstream side of the pressure regulation valve (28) is provided at the same pressure environment as the storage vessel (16) and a downstream side of the pressure regulation valve (28) provides a predetermined pressure at the drain valve (30).
Resumen de: US20260308785A1
0000 Provided is an electrode composition for proton exchange membrane water electrolysis comprising a binder, a catalyst, and a solvent, wherein the binder comprises a polar group-free binder. The electrode may comprise a binder, a catalyst, and a solvent, wherein the binder may comprise a polar group-free binder. The binder may further comprise a polar group-containing binder. Also provided is an anode comprising the electrode composition for proton exchange membrane water electrolysis. Also provided is a membrane-electrode assembly comprising the electrode for proton exchange membrane water electrolysis. Also provided is a proton exchange membrane water electrolysis cell comprising the electrode for proton exchange membrane water electrolysis.
Resumen de: DE102025113540A1
Die vorgestellte Erfindung betrifft ein Verfahren (100) zum Minimieren einer Degradation von Zellen in einem Zellstapel (201) eines Elektrolysesystems (200), wobei das Verfahren (100) umfasst:- Betreiben (101) des Elektrolysesystems (200) in einem Elektrolysebetrieb, bei dem Wasser in den Zellen durch Zufuhr von elektrischem Strom in Wasserstoff und Sauerstoff gespalten wird,- Beenden (103) des Elektrolysebetriebs und- Verdrängen (105) zumindest eines Teils eines in dem Zellstapel (201) befindlichen Elektrolyten durch ein Austauschfluid aus dem Zellstapel (201), nachdem der Elektrolysebetrieb beendet wurde.
Resumen de: US20260308773A1
The system produces, stores, and utilizes Oxyhydrogen gas in scalable quantities for direct or indirect use in multiple applications where process automation and safety features provide continuous duty with a maximum level of safety and a minimum of maintenance. In an embodiment, the system generates Oxyhydrogen Gas using a generator/electrolyzer, a reservoir, a control module, a compression process, flash back arrestor with thermal indication, storage, safety release module, and a utilization burner module and/or a combustion module. In and embodiment There are an additional sub-systems and their components that support production including distilled water, caustic solution, heat exchange, vacuum pump, and De-Foamer.
Resumen de: DE102025113773A1
Die vorliegende Erfindung betrifft eine Photokatalysevorrichtung mit wenigstens einem Photokatalysereaktor. Die Erfindung betrifft darüber hinaus ein Photokatalyseverfahren, bei dem Wasserdampf und/oder Wasser wenigstens einem Photokatalysereaktor zugeführt wird/werden, in dem der Wasserdampf und/oder das Wasser photokatalytisch in Wasserstoff und Sauerstoff aufgespalten wird/werden. Erfindungsgemäß weist der wenigstens eine Photokatalysereaktor jeweils einen Innenraum mit wenigstens einem Wasserdampf- und/oder Wassereinlass und wenigstens teilweise eine dem Innenraum des jeweiligen Photokatalysereaktors zugewandte Innenbeschichtung auf und ist bis auf seine Medienein- und auslässe nach außen dicht, wobei an oder um eine(r) Außenseite des Photokatalysereaktors wenigstens eine Erwärmungseinrichtung oder eine Abwärmezufuhr angeordnet ist, wobei die Innenbeschichtung ein keramisches, einen Katalysator für eine Photokatalyse ausbildendes Funktionsmaterial aufweist und in dem Innenraum des jeweiligen Photokatalysereaktors ein Wasserstoffkanal ausgebildet ist, dessen Kanalwandung zumindest teilweise als eine für Wasserstoff durchlässige, aber für Sauerstoff, Stickstoff und Wasser undurchlässige Membran ausgebildet ist.
Resumen de: WO2026209443A1
The present invention relates to an assembly comprising a bipolar plate (100) for an electrolytic cell (10, 10', 10'',...) of an electrolyser stack (1), which has a right cylindrical overall shape with a longitudinal axis X, the bases of the cylinder each having a recess (44, 45), having a right 5 cylindrical shape of height h and the same axis X, a periphery (43) circumscribing the recesses (44, 45), the periphery (43) being provided with channels (40, 41) which pass through the periphery (43) from a first opening (46) arranged on one face of the periphery (43) to a second opening (47) arranged on the opposite face of the periphery (43), the channels (40, 41) being configured to allow the recess (44, 45) to be supplied with an electrolytic fluid, or a mixture of 0 electrolytic fluid and electrolysis gases to be discharged from the recess (44, 45), at least one of the openings (46, 47) being circumscribed by a groove (42), and a sealing gasket (48). According to the invention, the sealing gasket (48) rests in the groove (42).
Resumen de: FI20253122A1
The present invention relates to a pressure control system (2) for an electrolysis arrangement comprising at least one sensor (22) configured to determine a pressure difference (Δp) between two fluid pathways comprising respective resultant fluids produced by an electrolysis stack (4) in use. At least one valve (20) configured to allow fluid flow therethrough to control pressure in the at least one of the fluid pathways. A controller (24) is configured to determine if said pressure difference (Δp) exceeds a threshold pressure difference (p*) and to control the valves (20) to reduce said pressure difference by continuously and/or in real-time adjusting the valve (20).
Resumen de: WO2026212273A1
The present invention relates to a reactor for an ammonia decomposition reaction and an ammonia decomposition method using same, wherein, during an ammonia decomposition reaction in which ammonia is decomposed into hydrogen and nitrogen by using a catalyst, molten salt is accommodated between the inner surface of a shell and the outermost surface of a multi-tube structure including a reaction tube and a preheating tube, and an inlet through which ammonia is introduced is connected to one end of the preheating tube so as to communicate with each other, so that heat transfer is achieved, thereby eliminating a temperature gradient, and the temperature of the reactor can be uniformed without cold spots by setting the specific heat and the mass flow rate of the ammonia and the molten salt in the reactor.
Resumen de: DE102025113113A1
Vorgeschlagen wird ein Verfahren zur Herstellung einer Elektrolysezelle (1), umfassend zwei Elektroden (2, 3) mit einem dazwischen angeordneten Separator (4). Dabei wird zur Ausbildung zumindest einer Elektrode (2, 3) ein Elektrodenmaterial (5) auf eine poröse Transport- (6) und/oder Gasdiffusionslage (7) aufgebracht. Erfindungsgemäß wird vor dem Aufbringen des Elektrodenmaterials (5) eine perforierte Metallfolie (8) auf die poröse Transport-(6) und/oder Gasdiffusionslage (7) aufgebracht. Beim anschließenden Aufbringen des Elektrodenmaterials (5) auf die Oberfläche (8) der perforierten Metallfolie (8) werden Bereiche der porösen Transport- (6) und/oder Gasdiffusionslage (7), die durch die perforierte Metallfolie (8) freigelassenen werden, gezielt ausgespart.Darüber hinaus betrifft die Erfindung eine Elektrolysezelle (1).
Resumen de: DE102025113543A1
Die Erfindung betrifft einen Elektrolyseur (1) zur Erzeugung von Wasserstoff (H2) und Sauerstoff (O2) als Produktgase, mit einem Elektrolysemodul (3) und mit einem Gas-Separator (5), der zur Phasentrennung des Produktgases von Wasser ausgelegt ist, bei der das Elektrolysemodul (3) über eine Produktstrom-Leitung (7) für das Produktgas an den Gas-Separator (5) angeschlossen ist, und bei dem eine Rückführleitung (9) mit einer Förderpumpe (13) für das abgetrennte Wasser vorgesehen ist, die den Gas-Separator (5) mit dem Elektrolysemodul (3) verbindet. Dabei ist ein Schwungradspeicher (13) vorgesehen, der mit der Förderpumpe (11) gekoppelt ist, so dass bei Störung der Energieversorgung ein Weiterbetrieb der Förderpumpe (11) über die im Schwungradspeicher (13) gespeicherte Rotationsenergie sichergestellt ist.Die Erfindung betrifft weiterhin ein Verfahren zum Betrieb eines Elektrolyseurs (1) mit einem Elektrolysemodul (3). Bei einer Störung der Stromversorgung wird ein unterbrechungsfreier Weiterbetrieb der Förderpumpe (11) dadurch erreicht, dass im Schwungradspeicher (13) gespeicherte Rotationsenergie als elektrische Energie zurückgewonnen und zum Weiterbetrieb der Förderpumpe (11) eingesetzt wird.
Resumen de: WO2026211917A1
The present invention addresses the problem of providing: a gas diffusion substrate used for electrolyzing carbon dioxide gas, the gas diffusion substrate suppressing the generation of a side reaction product (H2) over time (the ratio (C2H4/H2) of a main reaction product to the side reaction product is maintained over a long period of time); a method for manufacturing the same; an electrolytic cell electrode including the gas diffusion substrate; and a carbon dioxide electrolysis device including the electrolytic cell electrode. Provided are: a gas diffusion substrate which is used for electrolyzing carbon dioxide gas and is obtained by laminating a water-repellent porous layer (MPL) on at least one surface of a porous carbon electrode substrate (GDL), the gas diffusion substrate having a gas permeability in the through-plane direction from the GDL side of 1.0-3.0 mL/cm2·hr·Pa and a liquid permeation resistance from the MPL side of 180 min or more; a method for manufacturing the same; an electrolytic cell electrode including the gas diffusion substrate; and a carbon dioxide electrolysis device including the electrode for an electrolytic cell.
Resumen de: WO2026210344A1
The present invention relates to a system (100) for the production of hydrogen by liquid-phase water hydrolysis at temperatures even exceeding 100 °C and to its use in a hard-to-abate plant, namely a cement, steel, chemical, or petrochemical plant, or in a geothermal or solar plant, by utilizing the waste heat from said plant. The present invention also relates to a process for the production of hydrogen by water electrolysis and to a plant configured to use the waste heat from said plant as heating means of a system (100) for the production of hydrogen by electrolysis of water.
Resumen de: WO2026207618A1
An electrolyzer system and associated design and optimization methods are disclosed for producing hydrogen gas from an impure wastewater feedstock. Electrode temperature mapping and analysis of thermoelectric phenomena, including Joule/Thomson effects in homogeneous conductive electrodes such as 316L stainless steel, are used to identify localized oxidation and reduction regions and correlate them with gas bubble nucleation and detachment. These findings, together with electrode material characteristics and operating conditions, are incorporated into computational fluid dynamics modeling of two-phase gas–liquid flow to predict electrode and flow-field configurations that improve bubble removal, reduce overpotential and resistive losses, and enhance heat and mass transfer. In some embodiments, optimized electrodes include microchannel networks configured to direct electrolyte toward preferential reaction sites and promote gas disengagement. The resulting systems can achieve energy consumption and hydrogen production rates using contaminated wastewater comparable to systems operating on purified, demineralized water.
Resumen de: WO2026210989A1
A water electrolysis system (50) comprises: a water electrolysis device (11); a first heat exchanger (16b) that cools hydrogen generated in the water electrolysis device (11) and performs dehumidification; a second heat exchanger (51a) that exchanges heat between the hydrogen after dehumidification in the first heat exchanger (16b) and hydrogen reaching the first heat exchanger (16b) from the water electrolysis device (11); and a catalyst (51b) that removes oxygen contained in the hydrogen, which has increased in temperature due to the heat exchange in the second heat exchanger (51a).
Resumen de: US20260308789A1
An electrolyzer producing hydrogen. According to an aspect, the electrolyzer contains a stack producing a first fluid containing oxygen and a second fluid containing hydrogen upon application of voltage across the stack. A first pipe carries the first fluid away from the stack. A sensor is operable to send vibration signals representing a measure of vibrations of the first pipe when carrying the first fluid away from the stack, and a detection system operates to detect damage to one or more components within the stack based on the vibration signals.
Resumen de: WO2026211543A1
A management device (7) comprises: a unit price determination unit (11) that determines whether or not a unit price of electric power is at least a prescribed value; a control unit (13) that outputs a control command for controlling an electrolysis device (3) which generates hydrogen gas and oxygen gas by operating on the basis of electric power, and a hydrogen storage and supply device (4) which is capable of storing and supplying hydrogen gas; and a boiler operation determination unit (12) that determines whether or not it is necessary to operate a hydrogen boiler (5) that burns hydrogen gas and oxygen gas to heat a water tube and generate steam. When it is determined that a first condition is satisfied, the first condition being that the unit price is less than the prescribed value and operation of the hydrogen boiler (5) is unnecessary, the control unit (13) outputs the control command so as to bring about a first state in which a portion of the hydrogen gas generated in the electrolysis device (3) is supplied to hydrogen-using equipment (6) and a portion of the hydrogen gas generated in the electrolysis device (3) is stored in the hydrogen storage and supply device (4). When it is determined that a second condition is satisfied, the second condition being that the unit price is equal to or greater than the prescribed value and operation of the hydrogen boiler (5) is necessary, the control unit (13) outputs the control command so as to bring about a second state in which
Resumen de: US20260308786A1
0000 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: EP4818374A1
0001 An object of the present invention is to provide a low-cost porous carbon sheet that has a high compression deformation ratio when a water electrolysis cell is formed, has no problem of penetration or short circuit, and is also excellent in conductivity, and the present invention relates to a porous carbon sheet that is a sheet-shaped structure having a porous structure in which carbon fibers are bound with a binder, wherein a thickness d0 under an applied pressure of 0.15 MPa is 1.8 to 3.0 mm, a thickness d1 under an applied pressure of 1.0 MPa is 85% or more of the thickness d0 under an applied pressure of 0.15 MPa, and a thickness d2 under an applied pressure of 4.5 MPa is 75% or less of the thickness d0 under an applied pressure of 0.15 MPa.
Resumen de: KR20260146257A
0001a 본 발명은 PVA 코팅층을 포함하는 과불소계 이오노머를 포함하는 다공성 분리막 및 제조 방법에 관한 것으로서, 구체적으로, (a) 폴리아릴렌술폰계 고분자 및 퍼플루오로술폰산계(PFSA) 고분자를 포함하는 고분자 바인더 및 세라믹 나노입자를 포함하는 다공성 구조층, (b) 상기 다공성 구조층이 코팅되는 폴리페닐렌설파이드(PPS) 다공성 지지체, 및 (c) 다공성 분리막의 표면에 형성된 폴리비닐알코올(PVA) 코팅층을 포함하는, 알칼라인 수전해용 다공성 분리막, 및 비용매 유도 상분리(NIPS) 공정을 이용한 이의 제조방법에 관한 것이다. 본 발명에 따르면, 본 발명의 알칼라인 수전해용 다공성 분리막은 폴리술폰계 고분자의 일부를 퍼플루오로술폰산(PFSA) 고분자로 대체함으로써, 세라믹 나노입자와 술폰산 고분자와의 상호 작용(수소결합) 등을 바탕으로 나노입자를 결착시켜 지르코니아 소실을 막고 과대 기공의 발생을 억제하고 균일한 기공 형성을 유도할 수 있다. 또한, 본 발명의 알칼라인 수전해용 다공성 분리막은 PFSA 고분자의 첨가를 통해, 점도를 감소시키고 친수성을 향상시킬 수 있고 이에 따라 표면 기공을 형성하게 하고, 다공층 내부 기공형성까지 영향을 미칠 수 있고, 다공층내 PSf(물흡수율 0.6%이하) 대비 PFSA(Nafio
Resumen de: GB2705217A
A process for climate-positive operation of a power generation system. A hydrogen H and natural gas HG fuel and compressed oxygen O are provided to a combustion chamber 303 to generate and provide a high temperature and high-pressure gas flow to drive a shaft 275 by expansion of the exhaust gas. A flow of expanded exhaust gas is provided to a heat recovery steam generator 201 to generate steam to drive a steam turbine 270. A flow of steam is provided from the heat recovery steam generator to a first electrolyzer 230 to produce hydrogen and oxygen gases. A flow of exhaust gas is provided from the heat recovery steam generator to a membrane separation system 281 for separation of residual gases, such as sulphur-dioxide, nitrogen-oxides and particulates, and a flow of carbon-dioxide gas and water vapor is provided from the membrane separation system to a second electrolyzer 701 to produce hydrogen gas, oxygen gas and magnesium carbonate. A flow is provided from the second electrolyzer to a gas monitoring system 298. Figure 10
Resumen de: EP4818112A1
0001 A hydrogen generation apparatus includes a hydrogen generator, a primary coil circuit, a hydrogen compressor, and a hydrogen storage cylinder. The hydrogen generator includes a hydrogen generator body, a secondary coil, and an eddy current generating unit. The hydrogen generator body has a chamber, and is configured with a first inlet for introducing a first substance, a second inlet for introducing a second substance, an outlet and an exhaust port. The secondary coil is wound around the hydrogen generator body. The eddy current generating unit is disposed in the chamber corresponding to the secondary coil. The primary coil circuit is coupled to the secondary coil to induce the secondary coil to generate a high-voltage alternating current, thereby causing the eddy current generating unit to generate an eddy current and produce high temperature. A thermal cracking reaction is induced by the high temperature to generate hydrogen gas.
Resumen de: WO2025162752A1
A method is disclosed for producing an electrode (4) having a noble metal catalyst for alkaline water electrolysis. The method comprises: (S1) providing the electrode substrate (1); (S2) providing a matrix material (2) and a catalyst material (3) as starting materials for the coating; (S3) mixing the matrix material (2) and the catalyst material (3); and, (S4) coating the substrate (1) with the mixture of matrix material (2) and catalyst material (3) by means of high-velocity oxygen fuel spraying (HVOF). A correspondingly produced electrode (4), an electrochemical cell (10) comprising said electrode, and an electrolyser (20) are also specified.
Resumen de: EP4818367A1
The development of more cost-effective and efficient proton exchange membrane (PEM) water electrolysis cells requires the use of thinner membranes with extended lifetimes and reduced gas crossover. The inventive approach to address these challenges involves the incorporation of radical scavengers to mitigate radical-induced ionomer degradation, along with gas recombination catalysts to promote the conversion of crossover hydrogen and oxygen to water inside the PEM. Each of the two catalyst types has its distinct chemical reaction characteristics, to which the design of the composite membrane is tailored through rational considerations. In various embodiments of the present invention, the positioning effects of Ce0.5Zr0.5O2 and Pt interlayers in composite membranes for their respective roles in radical scavenging and gas recombination were investigated. Results reveal that placing a radical scavenger interlayer near the cathode notably reduces the ionomer degradation rate, compared to its placement near the anode, evidenced by a 61% ± 7% reduction in fluoride release rate. This is likely due to reactive oxygen species in the cell being predominantly generated at the cathode, which is closer to the radical scavenger interlayer in the former case. The Ce content in cerium-zirconium oxide was further optimized using an ex-situ Fenton test, with Ce0.25Zr0.75O2 demonstrating the highest radical scavenging activity.
Nº publicación: EP4818960A1 07/10/2026
Solicitante:
SCHNEIDER ELECTRIC SYSTEMS USA INC [US]
Schneider Electric Systems USA, Inc.
Resumen de: EP4818960A1
0001 A green hydrogen production system uses an AI operator assistant. Electrolysis sensors collect operating conditions of an automated electrolysis system (102). An artificial intelligence (AI) electrolysis prediction engine (112) uses the operating conditions to model electrolysis. The AI electrolysis prediction engine (112) models electrolysis using a both first principles model (304) and machine learning models of one or more degradation factors, such as electrolyzer degradation or electro-osmatic drag. The AI electrolysis prediction engine (112) hybridizes the models to generate initial set point scenarios for the electrolysis process. An AI operator assistant receives process characteristics from the operator, which are used to select a set point scenario. An automation control processor (106) then controls electrolysis in accordance with the selected settings. An AI observer engine (114), an AI reasoning engine (116), and an AI error minimization engine (118) perform different aspects of a process to observe the process, determine deviations, and predict further optimization.
BOPI
Sede Electrónica
