Resumen de: EP4772677A1
A water electrolysis system and a method for operating the water electrolysis system, capable of providing an adjustment capacity solely by controlling an amount of water supply are provided. A water electrolysis system which applies grid power to a plurality of water electrolysis stacks via a rectifier to provide hydrogen gas and oxygen gas as generated gas from water, and adjusts a power consumption in accordance with a command of a provision of an adjustment capacity. Upon reception of the command of the provision of the adjustment capacity in a contract timeframe in which the provision of the adjustment capacity is contracted, an amount of water supplied to the water electrolysis stack, temperature and pressure of the water electrolysis stack are made controllable in accordance with an amount of power derived from adding an amount of power for the adjustment capacity to be provided to an amount of power consumption of the water electrolysis stacks.
Resumen de: US12018631B1
0000 An enhanced control of hydrogen injection for internal combustion engine system and method providing greater real-time control of injection of hydrogen from a hydrogen generator, providing a further increase in performance and decrease in emissions of the engine of the motor vehicle. Initial values for parameters defining the optimal percentage amount or pressure of oxyhydrogen to be injected when the engine load is equal to one of several defined levels are entered and then interpolated to produce a curve specifying the amount of oxyhydrogen to be injected at any given engine-load level. Further adjustments to the load-related oxyhydrogen amounts are made for different engine operating temperatures in relation to different engine loads, and for different ambient air pressures related to altitude in relation to different engine loads. The initial values and adjusted values will be different for different engine types and sizes, different fuel types and grades, and other characteristics. The enhanced control of hydrogen injection for internal combustion engine system and method takes account of these engine-specific and operation-specific differences to provide an optimum amount of oxyhydrogen injection across a range of operating and ambient conditions. The operating conditions of engine load, rotational speed, vacuum, and engine temperature, and the ambient conditions of ambient temperature and ambient air pressure related to altitude are monitored in real time by a
Resumen de: EP4772676A1
0001 The present disclosure discloses a hydrogen generator. The hydrogen generator includes a housing, and an electrolyzer, an electrolyte tank, a gas-liquid separator, and a purification apparatus mounted in the housing. A diaphragm of the electrolyzer is an anion-exchange membrane. The electrolyzer is in communication with the electrolyte tank through a pipeline. The gas-liquid separator is provided with a first gas inlet and a third gas outlet. The first gas inlet is in communication with a first gas outlet of the electrolyzer through a pipeline. The purification apparatus is provided with a second gas inlet. The third gas outlet is in communication with the second gas inlet through a pipeline.
Resumen de: GB2644965A
An apparatus 1 for generating hydrogen, which comprises a housing 10 with a first electrode 11 and a second electrode 12. Each of the electrodes is submersed in water located within the housing 10. The first electrode 11 surrounds the second electrode 12, in a concentric manner. The first electrode 11 is cylindrical form and the second electrode 12 is of part-conical or frusto-conical form. The first electrode 11 may be an anode and the second electrode 12, a cathode. The housing 10 can comprise glass such as borosilicate glass and be of cylindrical or cuboidal form. The anode 11 may comprise stainless steel mesh and the cathode can comprise of be coated with one or metals of the group: rhenium, ruthenium, rhodium, palladium, silver, osmium, iridium, platinum, copper and gold.
Resumen de: GB2645004A
The present invention relates to a system and method for generating and providing hydrogen to a combustion engine, and for controlling the generation and provision of hydrogen to a combustion engine; comprising a combustion engine; an electrolysis cell for converting water into hydrogen gas and oxygen gas, wherein the electrolysis cell is at least fluidly connected to the combustion engine; an electronic process control system is operatively connected to the electrolysis cell to control the generation of hydrogen gas and delivery of hydrogen gas to the combustion engine; and an enclosure comprising an explosion protection system and/or walls of glass fibre or carbon fibre reinforced thermosetting polymer or metallic material, and wherein the enclosure comprises at least part of the electronic process control system.
Resumen de: WO2025132806A1
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: 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: WO2025135348A1
The present disclosure relates to a method for preparing a catalyst for an oxygen evolution reaction in a water electrolysis cell, and a water electrolysis cell membrane-electrode assembly and a water electrolysis cell, which comprise the catalyst prepared using same, and the method for preparing a catalyst for an oxygen evolution reaction in a water electrolysis cell comprises preparing a plurality of noble metal oxide seeds, and preparing a noble metal oxide aggregate by using the plurality of noble metal oxide seeds, thereby increasing the surface area thereof by means of pores between noble metal oxide particles, and thus performance and durability can be improved.
Resumen de: WO2025008146A1
The present invention relates to a method for producing hydrogen and magnetite from water and iron in the presence of an iron(II) salt catalyst. The invention also relates to the use of the iron obtained as an indirect hydrogen store.
Resumen de: WO2025135513A1
The present disclosure relates to a catalyst for an oxygen evolution reaction of a water electrolysis cell, a manufacturing method therefor, a membrane-electrode assembly for a water electrolysis cell including same, and a water electrolysis cell. The catalyst for the oxygen evolution reaction of a water electrolysis cell includes a heterogeneous noble metal composite which has a nanowire shape and includes different first and second noble metal oxides in a node structure, whereby the catalyst can reduce the amount of the noble metals used while improving performance and can enhance performance and durability depending on the types and lengths of the noble metals forming the heterogeneous noble metal composite.
Resumen de: US20260183700A1
0000 Proposed is a carbon dioxide capture, carbon resource utilization, and hydrogen production system for a steel mill. The system includes a melter-gasifier configured to manufacture molten iron by charging reduced iron and lumped carbonaceous materials therein, a reduction furnace connected to the melter-gasifier and configured to manufacture reduced iron from iron ore by using a reduction gas and to provide the reduced iron to the melter-gasifier, a blast furnace configured to manufacture molten iron by charging iron ore and coke therein, a reactor configured to spray a basic alkali mixture solution so that carbon dioxide is removed from a reduction gas and a reaction product is generated and configured to blow the flue gas to the blast furnace, and a hydrogen generator configured to generate hydrogen gas and oxygen gas by using a carbon dioxide reaction product in the reaction product generated from the reactor.
Resumen de: US20260185249A1
A MOF-derived nitrogen-cobalt heterogeneous nano-box electrocatalyst, along with its preparation method and application, is disclosed. The preparation involves the following steps: S1: preparing a ZIF-67 template; S2: dissolving the ZIF-67 template in anhydrous methanol through ultrasonic stirring to form solution A; S3: dissolving 1H-1,2,3-triazole in anhydrous methanol to form solution B; S4: combining solutions A and B, stirring, allowing the mixture to stand, and performing a substitution reaction; S5: centrifuging, drying, and carbonizing the product under nitrogen protection to obtain the electrocatalyst. In this method, 2-methylimidazole in the ZIF-67 framework is partially replaced by a high-energy nitrogen-containing ligand, 1H-1,2,3-triazole, which provides an abundant nitrogen source and locally restricts cobalt atom coordination. As a result, the electrocatalyst exhibits low hydrogen evolution overpotential under alkaline conditions (1 mol/L KOH).
Resumen de: WO2026137477A1
A chemical loop system and process capable of adjusting the ratio of hydrogen production to heat generation. In an embodiment, the system comprises a cyclone separator, a burner, a reducer, an oxidizer, a buffer tank and an air supply device, which can be sequentially connected from top to bottom. In addition, the system further comprises a riser pipe, by means of which the air supply device at the bottom is in communication with the cyclone separator at the top end, wherein carrier particles can be continuously circulated vertically in the system.
Resumen de: US20260185254A1
0000 There is provided an insulating piping configured by a double tube including an inner tube that connects a water electrolysis stack and an auxiliary machine and through which a fluid flows, and an outer tube provided on an outer side of the inner tube via the inner tube and an outer tube inner space; in which the outer tube has an insulating property, the water electrolysis stack and the auxiliary machine are insulated from each other in the inner tube, and a dry gas having a humidity of less than or equal to a predetermined value is enclosed in an outer tube inner space that is the space at a pressure of the fluid flowing inside the inner tube and a pressure higher than an atmospheric pressure.
Resumen de: US20260185252A1
A hydrogen production apparatus for a wind turbine is provided, including an electrolytic hydrogen production unit for producing hydrogen gas from electrical energy generated by the wind turbine, a compressor unit for compressing the produced hydrogen gas, and a sensor unit fluidly connected to the compressor unit for detecting an oil contamination of the compressed hydrogen gas. Thus, an oil contamination of the hydrogen gas produced by the hydrogen production apparatus is continuously monitored. Further, oil contamination of the hydrogen gas is detected before the hydrogen gas is discharged by the hydrogen production apparatus.
Resumen de: AU2025219584A1
The present disclosure provides an improved ammonia-producing plant and process for the simultaneous production of hydrogen and ammonia as end products, by integrating a hydrogen separation unit into an ammonia-producing plant. More in particular, the present disclosure provides an ammonia production plant comprising (a) a reforming section, (b) a purification section, downstream of the reforming section, and (c) an ammonia synthesis section, downstream of the purification section, wherein the plant further comprises (d) a hydrogen separation unit, wherein the hydrogen separation unit has an inlet for a hydrogen-containing gas stream, a first outlet for a pure hydrogen gas, particularly for providing the pure hydrogen to a hydrogen network, and a second outlet for a tail gas, particularly wherein the inlet of the hydrogen separation unit is in fluid communication with a hydrogen-containing gas stream in the purification section and/or in the ammonia synthesis section, and/or with a hydrogen-containing gas stream between the purification section and the ammonia synthesis section of the ammonia production plant, and, particularly, wherein the second outlet is in fluid communication with the reforming section and/or with the purification section of the ammonia production plant.
Resumen de: AU2024430968A1
Provided are: an electrolysis device for reducing a circulating current through a grounding wire; a method for controlling the electrolysis device; and a control program for the electrolysis device. This electrolysis device (1) includes an electrolysis cell (100) having a plurality of rectifiers (20) and a plurality of cell stacks (10) having a common positive electrode, wherein the respective positive electrodes of the cell stacks (10) are connected to respective positive electrodes of the rectifiers (20) installed in parallel, respective negative electrodes of the cell stacks (10) are connected to respective negative electrodes of the rectifiers (20), and a balance cable (80) for connecting the negative electrode of at least one of the cell stacks (10) and the negative electrode of at least one of the other cell stacks (10) is provided.
Resumen de: DE102025150477A1
Die vorliegende Anmeldung stellt ein Wärmemanagementsubsystem für ein Elektrolysesystem bereit, das einen erste Wärmetauscher, der dazu konfiguriert ist, thermisch mit einer Abflussrohrleitung gekoppelt zu werden, einen zweiten Wärmetauscher, der dazu konfiguriert ist, thermisch mit einer Versorgungsrohrleitung gekoppelt zu werden, und eine Antriebseinrichtung zum Antreiben eines Kühlmediums zum Fließen umfasst. Der erste und zweite Wärmetauscher sind dazu konfiguriert, auf einem Flusspfad des Kühlmediums angeordnet zu werden, so dass Wärme mit dem Kühlmedium ausgetauscht wird. Die Antriebseinrichtung ist zum selektiven Arbeiten in einem ersten Modus oder einem zweiten Modus in der Lage. In dem ersten Modus treibt die Antriebseinrichtung das Kühlmedium zum Fließen in einer ersten Richtung an und befindet sich der erste Wärmetauscher stromabwärts von dem zweiten Wärmetauscher in der ersten Richtung. In dem zweiten Modus treibt die Antriebseinrichtung das Kühlmedium zum Fließen in einer zweiten Richtung entgegengesetzt zu der ersten Richtung an und befindet sich der erste Wärmetauscher stromaufwärts von dem zweiten Wärmetauscher in der zweiten Richtung. Das Wärmemanagementsubsystem kann den Energieverbrauch und die Herstellungskosten des Elektrolysesystems reduzieren und die Energienutzungseffizienz davon erhöhen. Die vorliegende Anmeldung stellt auch ein Elektrolysesystem bereit, das ein solches Wärmemanagementsubsystem umfasst.
Resumen de: US20260185250A1
A porous transport layer (PTL) may include a porous structure having a first region having a first porosity and a second region having a second porosity less than the first porosity, the first region is configured to allow conduction of electrons within a catalyst layer of the electrochemical cell, to channel water and gases in the catalyst layer, the porous structure having a top face in contact with a flow field of the electrochemical cell and a first and second bottom face, the first bottom face being a bottom face of the first region and the second bottom face being a bottom face of the second region offset the bottom face of the first region in a thickness direction of the porous structure, and the second region configured to provide mechanical stability to a membrane portion of the electrochemical cell adjacent to the first bottom face.
Resumen de: WO2026139765A1
A process for producing hydrogen comprises a first operation mode and a second operation mode; the first operation mode comprises the steps of: producing CO in gaseous form by electrolysis in electrolytic cells supplied with energy and CO2; using a portion of the CO produced by electrolysis in a CO conversion step together with H2O, for example in a conversion step by water-gas shift reaction or an electrolysis conversion step of CO and H2O, where CO is converted to CO2 and H2 is produced; storing the remaining portion of the CO in a storage, optionally in liquid form after a liquefaction step; the second operation mode comprises the steps of taking CO, stored in the first operation mode, from the storage and using it, together with H2O, in the CO conversion step, for example in a conversion step by water- gas shift reaction or an electrolysis conversion step of CO and H2O, where CO is converted to CO2 and H2 is produced.
Resumen de: WO2026139767A1
A process for producing synthesis gas (syngas), to be used in particular for the synthesis of methanol or GTL hydrocarbons, comprises a first operation mode and a second operation mode; the first operation mode comprises the steps of: producing H2 by a reaction of splitting H2O into H2 and O2; producing CO by a reaction of splitting CO2 into CO and O2; using a first part of the CO obtained from the splitting of CO2 to form, together with H2 produced by water splitting, syngas; using a second part of the CO obtained from the splitting of CO2 in a CO conversion step together with H20, in which a water-gas shift reaction is conducted to convert CO into CO2 and produce H2, resulting in syngas; storing a third part of the CO in a storage; in the second operation mode, conducted alternatively to the first operation mode, CO stored in the first operation mode is taken from the storage and used, together with H2O, in a CO conversion step, in which the water-gas shift reaction is conducted to convert CO to CO2 and produce H2, resulting in syngas.
Resumen de: WO2026142736A1
A portable apparatus for generating and storing hydrogen water includes a reservoir for water that includes a neck and mouth at a top end, an opening on the bottom end, and one or more lateral sides. The apparatus further includes a hydrogen generating unit, having a top, a bottom, and lateral sides. The top end of the hydrogen generating unit is attached to the bottom end of the reservoir. A shell surrounds the bottom end of the hydrogen generating unit, the lateral sides of reservoir, and the top end of the reservoir surrounding the neck of the reservoir.
Resumen de: WO2026139895A1
A system for generating hydrogen, comprises an elongated reaction chamber configured for receiving a slurry containing water and a redox active powder and forming oppositely directed flows of the slurry, a first outlet downstream of an inner flow of the flows, for discharging a first liquid stream comprising hydrogen enriched water and suspended reduced-form particulates derived from the redox active powder in a shear layer between the flows, a second outlet downstream of a peripheral flow of the flows, for discharging a second liquid stream comprising oxygen‑enriched water and suspended oxidized‑form particulates derived from the redox‑active powder in the shear layer, and a power source configured to apply negative bias to the first outlet relative to the chamber.
Resumen de: US20260187735A1
0000 By capturing un-utilized electric generating capacity at electric generating plants and other sources, then immediately using it to split water into oxygen and hydrogen to create stored energy, and using neutral nitrogen (N2) extracted from the atmosphere to reduce the explosive powers of hydrogen below that of gasoline, the carbon-free nitrogen-hydrogen fuel (NHV) created can be used in today's gasoline vehicles with modified tanks and carburetors and/or to generate additional electricity “on demand” without creating any CO2 air pollution. 0000 Although hydrogen has a lower level of flammability (a lower percentage of concentration in the atmosphere before it ignites) it also has a greater explosive power. Unlike today's EVs that take considerable time to recharge at recharging stations along our highways, an (NHV) would take about the same amount of time that it takes to refuel today's gasoline vehicles.
Nº publicación: WO2026140816A1 02/07/2026
Solicitante:
FUJIFILM CORP [JP]
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Resumen de: WO2026140816A1
A separator for alkaline-water electrolyses which comprises woven fabric and a porous material other than the woven fabric, the separator having a membrane thickness of 100-250 μm, wherein the woven fabric has a percentage of openings of 45.0-72.0%; an alkaline-water electrolysis member; an alkaline-water electrolysis cell; an alkaline-water electrolysis device; and a method for producing hydrogen.