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1053
results.
Updated on
15/07/2026 [07:26:00]
Results 50 to 75 of 1053
Absstract of: 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).
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: US20260184857A1
0000 A crosslinked copolymer is disclosed. The crosslinked copolymer has outstanding ion exchange capacity, exhibits high ion conductivity and water content under diverse temperature conditions, and features high density, low hydrogen permeability, and excellent thermal and oxidative stability, making it well-suited as an anion exchange membrane for water electrolysis to produce high-purity hydrogen and oxygen.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: WO2026141244A1
This power reception device is supplied with a first positive electrode fluid and a negative electrode fluid, and is capable of producing hydrogen by an electrolytic reaction of water. The negative electrode fluid contains a hydrogen storage alloy, and can be operated in a first state in which the hydrogen storage alloy stores hydrogen generated by the electrolytic reaction, and in a second state in which the hydrogen storage alloy generates hydrogen.
Absstract of: WO2026139866A1
The present invention relates to a method and system of producing hydrogen gas using a water electrolyser cell that comprises both a catalytic reactor and polymer electrolyte membrane (PEM) electrolyser stack of cells. Oxygen generated by the PEM electrolyser stack may be recycled. The system and method include controlling the concentration of hydrogen in the anode compartment of the PEM electrolyser stack by varying the amount of recycled oxygen.
Absstract of: WO2026140263A1
The present invention comprises: a reactor (2) having a reducing agent for reducing a raw material gas to generate a product gas; a hydrogen generator (3) for generating a reducing gas for reducing the reducing agent; a raw material gas supply path (41) for sending the raw material gas to the reactor; a reducing gas supply path (42) for sending the reducing gas from the hydrogen generator to the reactor; a product gas discharge path (43) for discharging the product gas generated in the reactor; a reuse gas discharge path (44) for discharging, from the reactor, a reuse gas generated from the reducing agent reduced by the reducing gas, and sending the reuse gas to the hydrogen generator; a supply gas switching unit (60) for switching the path of the gas sent to the reactor; and a discharge gas switching unit (70) for switching the path of the gas discharged from the reactor.
Absstract of: EP4768557A1
0001 The present disclosure relates to an integrated plant for production of renewable hydrogen and biomethane, comprising a biomass gasification unit configured to convert organic feedstock into product gas; a methanation unit coupled to the biomass gasification unit to process product gas and produce biomethane; an electrolysis unit configured to produce renewable hydrogen from water using renewable energy sources with more energy efficiency conversion; a gas storage unit for the safe storage of biomethane and renewable hydrogen; and a control unit for optimizing energy usage, gas flow, and overall process efficiency, increasing the energy efficiency of gasification, by low and medium enthalpy energy recovery for pre-treatment biomass, wherein the biomethane and renewable hydrogen are combined in a fuel cell conversion unit to generate clean water as a by-product. The oxygen produced by electrolysis is supplied to the gasification unit, the thermal energy recovered from the internal process units is used to preheat the electrolysis feed water, and the water produced by the fuel cell conversion is recovered and reused for electrolysis, thus forming closed internal cycles of mass and energy flows. The integrated facility offers an efficient and flexible solution for the production and use of renewable hydrogen and biomethane.
Absstract of: EP4768115A2
Die Erfindung betrifft ein Verfahren und eine Anlage zur Gewinnung und Nutzung von Wasserstoff, insbesondere zur Nutzung von Wasserstoff im Bereich der Galvanik. Es wird eine klimapositive Galvanik mit dem Ziel vorgestellt, den CO2-Fuß-abdruck eines Galvanikprozesses durch die Nutzung einer innovativen Kombination aus vorhandenen Verfahren und der Nutzung des bisher ungenutzten Gasgemisches (verunreinigtes H2) zu reduzieren.
Absstract of: EP4768634A1
0001 In a water electrolysis system that changes a power consumption by detecting a grid frequency in order to rapidly change the power consumption, deterioration and breakdown of the electrolyzer are suppressed by calculating an appropriate adjustment margin that allows an electrolyzer to instantaneously respond. The water electrolysis system includes: a rectifier that converts an AC power from a power grid to a DC power; an electrolyzer that performs a water electrolysis with the DC power from the rectifier; a gas-liquid separator that separates the oxygen and the hydrogen from a mixed fluid of oxygen and water from the electrolyzer; and a cooling system that supplies water to the electrolyzer. The rectifier is controlled so as to adjust power consumption according to a frequency of the power grid, and the power consumption is adjusted so as to fall within a limit range of the power consumption in the electrolyzer, and the limit range of the power consumption is determined on the basis of a temperature of the electrolyzer, a deterioration rate thereof, a water pressure in an electrolyzer outlet, and a flow rate of supply water.
Absstract of: EP4768633A1
0001 The present invention discloses a composite diaphragm for a water electrolyzer, the composite diaphragm invention includes a nonwoven fabric and a polymer resin, the polymer resin is present on one surface or both surfaces of the nonwoven fabric, and the structure of the nonwoven fabric is penetrated by a part or all of the polymer resin, and the nonwoven fabric has a weight ratio of 20 to 95% in the composite diaphragm, a thickness of 0.20 to 2.00 mm, a basis weight of 100 to 400 g/m<2>, and a density of 0.20 to 0.50 g/cm<3>. The composite diaphragm for a water electrolyzer according to the present invention has features of being high in airtightness, low in electrical resistance, and high in durability in use in an alkaline solution environment.
Absstract of: WO2025049352A2
This discloses a surfaced plasmon resonance catalyst device and a chemical reaction systems using the catalyst device. The catalyst device includes metal nanoparticles formed over a supporting body with ligands that are interposed between the supporting body and many of the metal nanoparticles. Many of the ligands are bonded to a surface of the supporting body on one hand and are also bonded to at least part of the metal nanoparticles on the other hand. One chemical reaction system includes a flow reactor that accommodates the catalyst device for use in ammonia cracking.
Absstract of: WO2025040911A1
The disclosure provides an ion-conducting membrane, the ion-conducting membrane comprising a sulphonated hydrocarbon ionomer, wherein the ion-conducting membrane has a Lambda value of less than about 60.
Nº publicación: EP4767381A1 01/07/2026
Applicant:
JOHNSON MATTHEY HYDROGEN TECHNOLOGIES LTD [GB]
Johnson Matthey Hydrogen Technologies Limited
Absstract of: WO2025040912A1
The disclosure provides a process of preparing an ion-conducting membrane comprising a sulphonated hydrocarbon ionomer having an ion-exchange capacity I2 meq/g, the process comprising the steps of: a) providing a sulphonated hydrocarbon ionomer having an ion- exchange capacity I1 meq/g; b) casting an ion-conducting membrane from a mixture of the sulphonated hydrocarbon ionomer provided in step a) and a solvent; c) applying a treatment to the ion-conducting membrane prepared in step b) which reduces the ion-exchange capacity from I1 meq/g to an ion-exchange capacity I2 meq/g, wherein I2 is less than I1.
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