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984
resultados
Última actualización
16/10/2026 [07:02:00]
Resultados 100 a 125 de 984
Resumen de: WO2026202230A1
A method and system for the production of a synthetic fuel Method and system for the production of a synthetic fuel comprising C5+ hydrocarbons which uses gaseous feedstocks of hydrogen and carbon monoxide and/or dioxide to produce a methanol intermediate with an electrochemical reactor and an enzymatic treatment unit before a two-stage reaction process produces the synthetic fuel via dehydration of the methanol to dimethyl ether.
Resumen de: WO2026204931A1
The purpose of the present disclosure is to provide an ammonia production apparatus capable of efficiently producing ammonia and suppressing production cost. The present disclosure relates to an ammonia production apparatus comprising: an anode chamber which has an anode electrode having a water electrolysis catalyst and to which water is supplied; a cathode chamber which has a cathode electrode having an ammonia synthesis catalyst and to which gaseous nitrogen is supplied; a diaphragm provided between the anode chamber and the cathode chamber; and a cathode electrode drying means for drying the cathode electrode. In the ammonia production apparatus, ammonia is synthesized from a hydrogen source and the nitrogen in the presence of the ammonia synthesis catalyst in the cathode chamber.
Resumen de: WO2026206118A1
The present invention relates to a porous separator having low permeability and low resistance characteristics for alkaline water electrolysis, and a manufacturing method therefor. The porous separator may comprise (a) a porous structure layer including ceramic nanoparticles and a polymer binder including a polyarylene sulfone-based polymer and a perfluorosulfonic acid-based (PFSA) polymer, (b) a polyphenylene sulfide (PPS) porous support coated with the porous structure layer, and optionally (c) a polyvinyl alcohol (PVA) coating layer. In addition, the separator is manufactured using a nonsolvent-induced phase separation (NIPS) process. According to the present invention, by introducing the PFSA polymer, a pore structure is uniformly formed, excessive pores are suppressed, and ion transfer resistance is reduced by improving hydrophilicity. Accordingly, a separator for alkaline water electrolysis having excellent durability while achieving both low membrane resistance and low hydrogen permeability can be provided.
Resumen de: WO2026203429A1
This electrolysis system comprises: an electrolysis device that generates a cathode off-gas containing hydrogen through electrolysis using water as a raw material; a raw material system that supplies the raw material to the electrolysis device; a cathode regeneration heat exchanger that exchanges heat between the cathode off-gas and a cathode supply gas supplied to a cathode of the electrolysis device; a drain separator that separates moisture contained in the cathode off-gas; a synthesis gas booster that is provided on the downstream side of the drain separator; a tank that is provided on the downstream side of the synthesis gas booster; and a recycle system that returns a portion of the synthesis gas, from which moisture has been separated by the drain separator, to the raw material system through the tank.
Resumen de: US20260297767A1
An electrolysis cell includes: a band-shaped stacked body including a diaphragm including a first surface and a second surface, a cathode stacked on the first surface of the diaphragm, and an anode stacked on the second surface of the diaphragm, the stacked body meandering in a first direction and extending in a second direction; a first current collector that extends in a rod shape in a third direction perpendicular to the first direction and the second direction, and abuts on the cathode at a first curved portion where the stacked body is curved such that the first surface is located on the inner side; and a second current collector that extends in a rod shape in the third direction, and abuts on the anode at a second curved portion where the stacked body is curved such that the second surface is located on the inner side.
Resumen de: DE102025112396A1
Die Erfindung betrifft eine Elektrochemische Zelle (12), insbesondere Elektrolysezelle (14), aufweisend ein Zellsubstrat (16), eine erste Elektrodenschicht (26), eine zweite Elektrodenschicht (32), eine zwischen der ersten Elektrodenschicht (26) und zweiten Elektrodenschicht (32) angeordnete Elektrolytschicht (28), wobei das Zellsubstrat (16) flächig ausgebildet ist und eine Mehrzahl an Strukturelementen (20) aufweist. Es wird vorgeschlagen, dass sich die Strukturelemente (20) in das Zellsubstrat (16) hinein absenken und jeweils eine Erstreckung (34) zwischen 20% und 80% einer Substratdicke (36) des Zellsubstrats (16) aufweisen, bevorzugt zwischen 30% und 70%, besonders bevorzugt zwischen 40% und 60%.
Resumen de: WO2026202480A1
The present invention relates to a process for producing hydrogen from the catalytic cracking of ammonia using a catalyst. The catalyst comprises nickel supported on a metal element modified alumina support, the nickel having a particle size of from 0.5 nm to 10 nm, the metal element of the metal element modified alumina support being selected from the group comprising the rare-earth metals, titanium (Ti), zirconium (Zr), molybdenum (Mo), and zinc (Zn).
Resumen de: WO2026202262A1
The present disclosure provides a method and a system for sequestration of carbon dioxide from an oxy-fuel combustion thermodynamic system (100) and production of fine chemicals. The method includes burning a fuel with oxygen to produce energy and carbon dioxide, splitting carbon dioxide into a mixture of oxygen and carbon monoxide through a plasma-assisted catalytic carbon dioxide conversion reaction, separating a stream of carbon monoxide and a stream of oxygen from the mixture, and 10 recirculating oxygen to the fuel burning step. The system includes a plasma-assisted catalytic carbon dioxide conversion reactor (30) coupled to the oxy-fuel combustion thermodynamic system (100) through a carbon dioxide line (3), and an oxygen separator (40) coupled to the reactor (30) through an oxygen and carbon monoxide mixture line (4). The oxygen separator (40) is coupled to the oxy-fuel combustion thermodynamic system (100) through an oxygen recirculation line (5). The system can additionally comprise a hydrogen production unit (50, 70) to produce hydrogen, which is then mixed in a mixing station (60) with the separated carbon monoxide from the oxygen separator (40) to produce syngas.
Resumen de: WO2026203859A1
Provided is a hydrogen generator that can be miniaturized. The present invention comprises: a water-permeable member that carries a photocatalyst; and a pair of gas barrier members that sandwich the water-permeable member.
Resumen de: DE102025111619A1
Die Erfindung betrifft ein Verfahren (10) zur Herstellung einer elektrochemische Zelle (12), insbesondere Elektrolysezelle (14), aufweisend ein Zellsubstrat (16), eine erste Elektrodenschicht (26), eine zweite Elektrodenschicht (32), eine zwischen der ersten Elektrodenschicht (26) und zweiten Elektrodenschicht (32) angeordnete Elektrolytschicht (28), wobei die Elektrolytschicht (28) mittels eines physical vapour deposition (PVD) Verfahrens abgeschieden wird. Es wird vorgeschlagen, dass auf die Elektrolytschicht (28) eine Versiegelungsschicht (30) mittels atomic layer deposition (ALD) abgeschieden wird.
Resumen de: WO2026202991A1
A water electrolysis system (10) comprises a plurality of water electrolysis devices (12), a power supply device (14) for supplying current to the plurality of water electrolysis devices, a tank (16) that can accommodate oxygen gas generated at the plurality of water electrolysis devices, and a control unit (64) that controls supply of current from the power supply device to the plurality of water electrolysis devices. The control unit starts supply of current from the power supply device to a first water electrolysis device (12a) of the plurality of water electrolysis devices and then starts supply of current from the power supply device to a second water electrolysis device (12b) of the plurality of water electrolysis devices.
Resumen de: US20260297775A1
A metal nitride hybrid composite catalyst having catalytic activity for an oxygen evolution reaction (OER), a hydrogen evolution reaction (HER), or an oxygen reduction reaction (ORR) is disclosed. The metal nitride hybrid composite catalyst may include a cerium-substituted metal nitride particle and a layered metal double hydroxide nanosheet grown on a surface of the metal nitride particle.
Resumen de: WO2026205248A1
Problem To provide a composite that can be used in an electrode for electrochemical water decomposition and is configured such that the carried amount of a catalyst material such as platinum or iridium oxide is reduced as compared with the prior art. Solution Provided is a method for preparing a composite in which a catalyst material is formed on a support including a carbon nanotube molded body, the method comprising: (1) a step for bringing a support including a carbon nanotube molded body into contact with a solution containing a catalyst precursor for the catalyst material; (2) a step for drying the support brought into contact with the solution to obtain a support carrying the catalyst precursor; and (3) a step for reducing the catalyst precursor to convert the catalyst precursor to a metal, the method optionally including a step, following step (3), for oxidizing the metal.
Resumen de: DE102025112221A1
Die Erfindung betrifft eine Membranelektrodenanordnung (1), die eine Kathode (2), eine Anode (3) und eine zwischen der Kathode (2) und der Anode (3) angeordnete protonenleitfähige Membran (4) umfasst, wobei die Anode (3) eine katalytische Zusammensetzung (5) umfasst, wobei die katalytische Zusammensetzung (5) einen Sauerstoffevolutionskatalysator (6) und eine platinhaltige Komponente (7) umfasst und wobei die platinhaltige Komponente (7) ein keramisches Material (8) umfasst, das eine Platinbeschichtung (9) aufweist.
Resumen de: DE102025111622A1
Verfahren zum Betrieb einer Elektrolysezelle (1) bei dem Wasserstoff (H2) und Sauerstoff (O2) als Produktgase erzeugt werden, wobei die Elektrolysezelle (1) einen Anodenraum (3) und einen Kathodenraum (5) aufweist, die durch eine elektrodenbeschichtete Membran (7) getrennt sind, wobei die Elektrolysezelle (1) mit einem Elektrolysestrom (I) beaufschlagt wird, so dass Sauerstoff-Produktgas im Anodenraum (3) und Wasserstoff-Produktgas im Kathodenraum (5) gebildet wird, wobei ein Fremdgasanteil von Wasserstoff (H2) von dem Kathodenraum (5) durch die Membran (7) in den Anodenraum (3) überführt wird. Dabei wird die Stromdichte (j) variiert und die Wasserstoffpermeationsrate (ṅH2) durch die Membran (7) als Funktion der Stromdichte (j) sowie in Abhängigkeit des Wassertransports (ṅH2O,drag) von dem Anodenraum (3) durch die Membran (7) in den Kathodenraum (5) bestimmt.Die Erfindung betrifft weiterhin einen entsprechenden Elektrolyseur (10a), der für die Durchführung des Verfahrens eingerichtet ist.
Resumen de: US20260297761A1
A hydrogen-electric coupling control method for off-grid green power-based hydrogen production includes: performing maximum power point tracking (MPPT) control on each photovoltaic module to maximize an output power; distributing the output power to a power-type electrolyzer, and stabilizing a current on a low-voltage side at a specified value by adjusting a duty cycle of a boost direct current (DC)/DC converter, such that the power-type electrolyzer always operates at a rated power point; and distributing the output power to a regulation-type electrolyzer, and stabilizing a voltage on a high-voltage side at a target value by adjusting an output voltage of the boost DC/DC converter, such that the regulation-type electrolyzer absorbs a fluctuating part of a photovoltaic power. The hydrogen-electric coupling control method can effectively improve efficiency of a green power-based hydrogen production system, and realize stable and sustainable hydrogen production without relying on energy storage.
Resumen de: WO2026203446A1
Provided are: a redox-mediated electrolysis cell which is capable of lowering overvoltage at the anode side; a redox-mediated secondary battery cell; a dynamic regenerative redox-mediated electrolysis cell; a redox-mediated electrolysis device; and a method for producing hydrogen. A redox-mediated electrolysis cell according to the present invention is provided with a first anode, a first cathode, a first anode electrolyte solution, a first cathode electrolyte solution, and a first diaphragm that separates the first anode electrolyte solution and the first cathode electrolyte solution from each other. The first anode electrolyte solution contains a redox-mediated reduced form. At the first anode, the oxidation potential of the redox-mediated reduced form is lower than the oxygen generation potential.
Resumen de: WO2026200097A1
Disclosed in the present application are a hydrogen-production power supply system and a control method therefor. The system comprises a transformer, a main power branch, an auxiliary power branch, at least one set of energy storage branches, and a busbar, wherein a primary winding of the transformer is coupled to an alternating-current power grid, and a secondary winding of the transformer is coupled to an input terminal of the main power branch; an output terminal of the main power branch is coupled to an off-grid hydrogen production device; the auxiliary power branch is coupled between the secondary winding and the busbar; the energy storage branches are all coupled to the busbar; the main power branch comprises at least one uncontrolled rectifier circuit and at least one chopper circuit, the uncontrolled rectifier circuit being used for converting into direct currents alternating currents that are output by the transformer, thereby saving costs, and the chopper circuits being used for adjusting the voltage of the direct currents to a voltage required by a load of a chopper branch; the auxiliary power branch is used for outputting power to the busbar and performing power exchange with the alternating-current power grid, thereby improving the capability of responding to the alternating-current power grid; and the energy storage branches are used for pre-storing and releasing electric energy by means of the busbar, thereby improving the system stability.
Resumen de: WO2026199954A1
The present invention belongs to the technical field of green-electricity-based hydrogen production. Disclosed are a hydrogen-electricity coupling control system and method for off-grid green-electricity-based hydrogen production. The method comprises: executing MPPT control on each photovoltaic module, so as to maximize an output power; distributing output powers to power-type electrolyzers, and adjusting the duty cycles of boost DC/DC converters to stabilize a low-voltage-side current at a set value, such that the power-type electrolyzers always operate at rated power points; and distributing the output powers to regulation-type electrolyzers, and adjusting the output voltages of the boost DC/DC converters to stabilize a high-voltage-side voltage at a target value, such that the regulation-type electrolyzers absorb a fluctuating portion of a photovoltaic power. The present invention can effectively improve the efficiency of a green-electricity-based hydrogen production system, and can realize stable and sustainable hydrogen production without relying on energy storage.
Resumen de: WO2026205758A1
The present invention relates to a hydrogen production system capable of producing hydrogen in an environmentally friendly and economical manner by means of a low-temperature plasma module by using seawater. The present invention is characterized by a low-temperature plasma module hydrogen production system comprising: a water electrolysis unit into which seawater flows, and which electrolyzes the seawater to produce hydrogen; an atomization unit to which an electrolyte remaining in the water electrolysis unit after the electrolysis is transferred through an electrolyte discharge port, and which atomizes the electrolyte into a mist; an aerosol electrolysis unit to which water particles atomized by the atomization unit are transferred, and which is composed of a low-temperature plasma module and makes it possible to re-separate oxygen ions and hydrogen ions in atomized water molecules to produce hydrogen.
Resumen de: US20260297777A1
0000 An aspect of the present disclosure is directed to improving diagnostic measurements during operation of electrolyzers. In one embodiment, a hydrogen production system contains an electrolyzer; a direct current (DC) voltage source to apply a DC voltage across the electrolyzer to cause production of hydrogen by the electrolyzer; a test source to apply an alternating current (AC) signal across the electrolyzer to perform measurement of a diagnostic parameter of the electrolyzer; and a filter located in a path between the DC source and the electrolyzer, the filter designed to block the AC signal from when the AC signal is applied across the electrolyzer. As such the test source is operable to perform the measurement during the production of the hydrogen while the filter prevents the diversion of the AC signal to the DC source.
Resumen de: AU2025255910A1
The invention relates to a gas diffusion layer (5) for an electrolysis cell (1), comprising a fine layer (51) and a coarse layer (52). The fine layer (51) comprises a fine structure with pores of a first pore size, and the coarse layer (52) comprises a coarse structure with pores of a second pore size. The coarse layer (52) comprises a plurality of spiral elements (520), the spiral elements (520) are interwoven, and at least one spiral element (520) is freely movable, in particular freely rotatable, The gas diffusion layer further comprises at least one intermediate layer (53). The at least one intermediate layer (53) comprises an intermediate structure with pores of an intermediate pore size, and the intermediate layer (53) is provided between the fine layer (51) and the coarse layer (52), said intermediate pore size being larger than that of the fine layer (51) and smaller than that of the coarse layer (52).
Resumen de: AU2025235851A1
A method for revamp and decarbonizing an ammonia or urea plant comprising an existing primary and secondary steam reforming unit for the preparation of ammonia synthesis gas and an ammonia synthesis loop using an electrolysis unit to produce hydrogen and oxygen.
Resumen de: EP4814166A2
0001 The present disclosure relates to an electrode assembly for a bipolar electrolyser stack, preferably for an electrolyser stack, comprising: a first flow-through electrode comprising a first surface that is permeable to gases produced by the decomposition of a process solution, preferably water, and an opposite second surface; a second flow-through electrode comprising a first surface that is permeable to gases produced by the decomposition of a process solution, preferably water, and an opposite second surface; and a non-permeable divider arranged between the second surfaces of the first and second flow-through electrodes and adapted to separate the first and second flow-through electrodes from each other.
Nº publicación: EP4813514A1 30/09/2026
Solicitante:
KOREA RESEARCH INST OF CHEMICAL TECHNOLOGY [KR]
Korea Research Institute of Chemical Technology
Resumen de: EP4813514A1
The present invention relates to a catalyst for an ammonia decomposition reaction and a hydrogen production method using same. More specifically, the present invention relates to: a catalyst for an ammonia decomposition reaction which, by containing cesium and cerium in a cobalt-molybdenum composite nitride, exhibits excellent catalytic activity in the ammonia decomposition reaction and thus enables an improved ammonia conversion rate, and which shows minimal degradation in activity even after high-temperature and long-duration reactions, offering excellent long-term stability; and a hydrogen production method using the catalyst.
BOPI
Sede Electrónica
