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851
resultados
Última actualización
14/11/2025 [06:59:00]
Resumen de: AU2024285985A1
A method of producing a hydrogen stream and an oxygen stream and passing the hydrogen stream and the oxygen stream to a reverse water-gas shift reactor is described, the method comprising: providing a water stream to an electrolysis system configured to form: a hydrogen stream at a first pressure, and an oxygen stream at a second pressure; passing the hydrogen stream, a carbon dioxide stream, and the oxygen stream to the reverse water-gas shift reactor, wherein the first pressure is lower than the second pressure.
Resumen de: AU2024276790A1
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: AU2024249829A1
The invention relates to an electrolytic method for producing carbon dioxide, having the following steps: a. anodically oxidizing hydrogen gas within an electrolysis cell, an acidic oxidation product being obtained; b. reacting the acidic oxidation product with an aqueous electrolyte solution within the electrolysis cell, an acidic aqueous solution being obtained; c. cathodically reducing water within the electrolysis cell, an alkaline aqueous solution and hydrogen gas being obtained; d. reacting the alkaline aqueous solution outside of the electrolysis cell with a gas which contains carbon dioxide, wherein the gas is air in particular, in order to obtain a carbonate-containing aqueous solution; and e. reacting the carbonate-containing alkaline aqueous solution with the acidic aqueous solution outside of the electrolysis cell in order to obtain dissolved carbon dioxide gas.
Resumen de: AU2025202385A1
The present invention is an adhesive-fixed electrolysis module comprising a single stack, the single stack having a separator, a pair of bipolar plates, a pair of gaskets, a pair of diffusion layers, a pair of electrodes, and a cell frame, wherein the bipolar plates, the gaskets, 5 the diffusion layers, and the electrodes are sequentially arranged on the cathode and anode sides, respectively, with respect to the separator, forming a symmetrical structure, wherein the separator, the bipolar plates, the gaskets, the diffusion layers, and the electrodes are stacked in a zero-gap manner within the cell frame, and wherein the bipolar plates are adhered and fixed to the cell frame using an adhesive, thereby simplifying product assembly 10 and reducing assembly costs compared to a single stack fixing method using welding, riveting, bolting, etc. between conventional parts. The present invention is an adhesive-fixed electrolysis module comprising a single stack, the single stack having a separator, a pair of bipolar plates, a pair of gaskets, a pair of 5 diffusion layers, a pair of electrodes, and a cell frame, wherein the bipolar plates, the gaskets, the diffusion layers, and the electrodes are sequentially arranged on the cathode and anode sides, respectively, with respect to the separator, forming a symmetrical structure, wherein the separator, the bipolar plates, the gaskets, the diffusion layers, and the electrodes are stacked in a zero-gap manner within the cell frame, and wher
Resumen de: EP4647532A2
The present disclosure advantageously provides an improved cooling system for an electrochemical plant. The configurations disclosed herein provide advantages and improvements in a cooling system for the electrochemical plant. The cooling system advantageously cools multiple subsystems within the plant using dry coolers, thereby easing maintenance and access to various components within the plant, minimizing or reducing the amount of process piping within the plant used to cool the multiple subsystems, and reducing the complexity of the overall plant.
Resumen de: EP4647396A1
There is described a hydrogen production system comprising: a gasification sub-system to produce a syngas stream from a biomass and/or refuse derived fuel feed stream; and a steam methane reformer (SMR) sub-system to produce an SMR syngas stream from a hydrocarbon feed, and to produce a low carbon hydrogen final product by integrating the syngas stream from the gasification sub-system and the SMR syngas stream.
Resumen de: WO2024129657A1
The present invention provides a device for carbon dioxide recovery from alkaline water using a module having at least three compartments where each compartment is separated by an electrode pair (anode and cathode) with electrochemical reactions occurring at the electrodes. The electrodes can be in a unipolar or bipolar configuration. Multiple electrochemical modules can be electrically connected in series, in parallel, or in a combination of both series and parallel. Also disclosed it the related process for recovering carbon dioxide from alkaline water.
Resumen de: EP4647534A1
Eine Plattenanordnung (1) eines Stapels elektrochemischer Zellen (2) umfasst ein zumindest teilweise als 3D-Druck-Element ausgebildetes Plattenelement (3), in welchem mehrere Schichten (6, 7, 8) parallel zueinander angeordnet sind, die jeweils durchbrochene, zur Durchleitung eines Fluids geeignete Strukturen aufweisen, wobei die Feinheit der Durchbrechungen (17) von Schicht (6, 7, 8) zu Schicht (6, 7, 8) variiert, und wobei ein Temperatursensor (19), der an ein Kabel (20) angeschlossen ist, welches durch mehrere der genannten Schichten (6, 7, 8) verläuft, an diejenige Schicht (8) grenzt, welche die feinsten Durchbrechungen (17) aufweist.
Resumen de: EP4647161A1
The present disclosure relates to a catalyst for decomposition of ammonia and a method for decomposition of ammonia.
Resumen de: AU2024214359A1
Feedwater preparation system in a water electrolyser adapted to produce hydrogen and oxygen in one or more pressurised electrolyser stacks (2) using alkaline water and comprising a product gas conditioning system that has a safety valve out-blow material stream pipe (11) which is connected to a feedwater vessel (9), and/or has a depressurisation stream pipe (31) from a gas cleaning vessel which is connected to the feedwater vessel (9).
Resumen de: AU2024237545A1
A method for generating and treating a two-phase outflow from one or more pressurised electrolyser stacks which are adapted to electrolyse water into hydrogen and oxygen, whereby a pump supplies a catholytic fluid flow from one first gas liquid gravitational separator vessel to the electrolyser stacks and whereby a further pump supplies an anolytic fluid flow from one second gas liquid gravitational separator vessel to the electrolyser stacks, and whereby at least one cyclone type gas liquid separator receives combined outflows from the catholytic chambers and/or receives combined outflows from anolytic chambers respectively inside corresponding gravitational gas liquid separator vessel whereby further, the at least one cyclone type gas liquid separator separates the gas from the liquid along a generally horizontal cyclonic rotation axis inside the gas liquid gravitational separator vessel. An electrolyser system is also provided.
Resumen de: WO2024160929A1
An electrode for use in the electrolysis of water under alkaline conditions, comprising a nickel metal substrate, a ceramic material with a perovskite-type structure comprising an oxide of at least one metal selected from among lanthanides including lanthanum, cerium and praseodymium, where said ceramic material is forming a coating on said nickel metal substrate, and metal nanoparticles are socketed into the said ceramic material. The metal nanoparticles facing the alkaline solution have electrochemical activity, whereas the metal nanoparticles facing the said metal substrate form an anchoring points between the metal substrate and the said ceramic material.
Resumen de: US2025333854A1
A water electrolysis system that generates hydrogen and oxygen by electrolysis of water includes a water electrolysis cell including an anode, a cathode, and an electrolyte membrane sandwiched between the anode and the cathode, and a control device that controls electric power supplied to the water electrolysis cell, wherein the control device performs a potential changing process of changing a potential of the anode either or both of upon starting of the water electrolysis system and during continuous operation of the water electrolysis system, and the potential changing process includes a potential lowering process of lowering the potential of the anode to a predetermined potential.
Resumen de: FR3161913A1
Procédé de fabrication d’une céramique nanoarchitecturée poreuse (200) pour électrode de cellule d’électrolyseur (100), notamment pour électrode de cellule d’électrolyseur à haute température (également connue selon l’acronyme EHT), le procédé comprenant les étapes suivantes de : fourniture d’une résine comprenant un photoréactif polymérique, un solvant, par exemple un solvant organique, et une charge comportant au moins un précurseur minéral de la céramique, impression 3D de la résine selon un motif prédéterminé de sorte à former un squelette nanoarchitecturé poreux (300), par exemple sous forme de nid d’abeilles ou sous forme tétrakaidécahédrale, etfrittage du squelette nanoarchitecturé poreux (300) de sorte à obtenir une céramique nanoarchitecturée poreuse (200). Figure 4
Resumen de: WO2025227539A1
The present invention belongs to the technical field of carbon dioxide capture. Provided is a decoupling type electrochemical carbon dioxide capture system. The system comprises an electrolysis reactor, a carbon dioxide absorption tower and a carbon dioxide desorption tower. The system can achieve the electrochemical capture and purification of ultralow-concentration carbon dioxide in an oxygen-containing carbon dioxide environment. In practical use, an external power supply can be used for supplying power to the system, and the pH environments of a solution at a cathode and an anode are changed by means of an electrochemical PCET reaction to promote the enrichment of OH- in a cathode region and the enrichment of H+ in an anode region, thereby achieving the absorption of ultralow-concentration carbon dioxide and the release of high-purity carbon dioxide; and an anode liquid is reduced and regenerated outside the system by means of hydrogen generated by the cathode, thereby achieving low-energy-consumption continuous stable carbon dioxide capture and purification.
Resumen de: WO2025227188A1
Described herein is a process for splitting water into molecular hydrogen (H2) and oxygen (O2), comprising: contacting water molecules with a catalyst, wherein the catalyst or at least portion thereof in contact with the water molecules is irradiated with microwave radiation, and wherein the catalyst comprises a compound of a metal (M) and at least one Lewis acidic element (X) different to the metal, whereby on contact, the water molecules split to form molecular hydrogen (H2) and oxygen (O2).
Resumen de: US2025341280A1
The storage apparatus according to the invention, a geo hydrogen storage system, is a system consisting of a plurality of groundwater wells drilled into the ground. Hydrogen is produced by electrolysis using green energy. The hydrogen and the associated oxygen are stored in and recovered from cartridges installed in said wells being flooded by the groundwater and located at appropriate distances from each other. The system uses closed-circuit circulating water to transport the gases generated in electrolysis in the form of bubbles. The gases are separated from the circulating water by volume expansion and form gas bubbles when they reach the corresponding cartridge. This gas bubble will, with continued operation, squeeze larger and larger volume of water from the groundwater in the cartridge, thereby pressurizing the system.
Resumen de: WO2025231104A1
A contained hydrogen generation system ("system") comprises a high-pressure containment vessel ("vessel"), one or more proton-exchange membrane ("PEM") cells, an oxygen-water separator, and a passive dual regulator with relative differential venting ("regulator"). The vessel defines a hydrogen plenum. The PEM and the oxygen-water separator are disposed in the hydrogen plenum. The regulator includes a hydrogen fluid path in fluid communication with the hydrogen plenum, an exterior hydrogen storage vessel, and an exterior of the vessel, and also includes an oxygen fluid path in fluid communication with the oxygen-water separator, an exterior oxygen storage vessel, and an exterior of the vessel. The regulator regulates pressure imbalances between an oxygen-side of the system and a hydrogen-side of the system, and vents oxygen and hydrogen to an exterior of the vessel to allow collection of both hydrogen and oxygen and avoid rupture of a PEM in the one or more PEM cells.
Resumen de: WO2025231331A1
A direct impure water electrolysis (DIWE) approach generates green hydrogen in a modified proton-exchange membrane pure water electrolyzer (PEM-PWE), that avoids fouling, corrosion, deactivation, and side reactions normally caused by the ions in impure or saline waters. Conventional electrolyzers require ultrapure deionized (DI) water as feed because: 1) the proton-exchange membrane (PEM) and electrocatalysts are readily poisoned by the anions, e.g., chloride, and cations, e.g., sodium, calcium, and magnesium that are present in seawater or brackish water; and 2) the chloride anions readily form chlorine at the PEM-electrolyzer anode, which is toxic and corrosive. This adds substantially to the cost and complexity of the electrolyzer plant due to the water treatment plant needed for producing ultrapure DI water. The tolerance of impure water as described herein avoids reverse osmosis and deionization requirements steps which is beneficial for use in semi-arid regions with a paucity of fresh water.
Resumen de: WO2025230473A1
The present disclosure relates broadly to ammonia electrochemical cells. The ammonia electrolysis cell may comprise: a chamber for containing an electrolyte; two electrodes disposed within the chamber; and an anion exchange membrane disposed between the electrodes, wherein each electrode comprises a bifunctional catalyst having ammonia oxidation reaction activity and hydrogen evolution reaction activity, and wherein each electrode is capable of alternating in polarity when subjected to an alternating potential. There is also disclosed herein a method of operating an ammonia electrolysis cell as well as the use of an ammonia electrolysis cell to produce hydrogen from ammonia.
Resumen de: US2025236972A1
Electrolyzer for production of hydrogen gas and comprising a stack of bipolar electrodes sandwiching ion-transporting membranes between each two of the bipolar electrodes. Each bipolar electrode comprises two metal plates welded together back-to-back forming a coolant compartment in between and having a respective anode surface and an opposite cathode surface, each of which is abutting one of the membranes. The plates are embossed with a major vertical channel and minor channels in a herringbone pattern for transport of oxygen and hydrogen gases. The embossed herringbone pattern is provided on both sides of the metal plates so as to also provide coolant channels in a herringbone pattern inside the coolant compartment.
Resumen de: AU2024244811A1
Provided is a configuration capable of improving the operation rate of a hydrogen production device for producing hydrogen using power supplied from multiple power sources using different renewable energies. A power system 1 according to one embodiment of the present disclosure comprises: a hydrogen production device 41 that produces hydrogen using power supplied from different types of renewable energy generators 21, 31; and an information processing device 71 that causes power to be supplied to the hydrogen production device 41 from a renewable energy generator, the output of which is reduced, from among the renewable energy generators 21, 31.
Resumen de: AU2024407460A1
A catalyst coated separator for alkaline water electrolysis (1) comprising a porous support (100) and on at least side of the support, in order: - an optional porous polymer layer (200), - a non-porous alkali-stable polymer layer (300), and - a catalyst layer (400).
Resumen de: US2025343422A1
The present disclosure relates to circuits for connecting components of a hydrogen plant to a power grid to power the components in an efficient manner. In one implementation, power-side alternate current (AC) to direct current (DC) converters may be connected to a source power grid without the need for an isolation transformer by providing separate buses between the power-side AC-DC converters and load-side DC-DC converters instead of a shared DC bus between the converters. Other implementations for connecting components of a hydrogen plant to a power grid may include an adjustable transformer, such as a tappable transformer or an autotransformer, to connect any number of auxiliary loads of the plant to the power grid. The adjustable transformer may provide for various types of auxiliary load devices to connect to the power provided by the transformer at the same time, including both three-phase devices and one-phase devices.
Nº publicación: US2025341010A1 06/11/2025
Solicitante:
VERDAGY INC [US]
Verdagy, Inc
Resumen de: US2025341010A1
A method of operating an electrolyzer includes changing a current density associated with operation of the electrolyzer based on one or more electricity input factors, or one or more hydrogen output factors, or both.
BOPI
Sede Electrónica
