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1053
results.
Updated on
15/07/2026 [07:26:00]
Results 125 to 150 of 1053
Absstract of: WO2026134095A1
According to the present invention, hydrogen production equipment comprises: a first electrolysis device that includes a first electrolysis tank for electrolyzing water, a first gas/liquid separator to which gas that has been generated at the first electrolysis tank is led, a first circulation line for circulating an electrolyte solution between the first electrolysis tank and the first gas/liquid separator, and a first circulation pump that is provided on the first circulation line; and a second electrolysis device that similarly includes a second electrolysis tank, a second gas/liquid separator, a second circulation line, and a second circulation pump. The hydrogen production equipment also comprises: a branch line that connects a portion of the first circulation line that is downstream of an outlet of the first electrolysis tank and upstream of the first circulation pump and a portion of the second circulation line that is downstream of an outlet of the second electrolysis tank and upstream of the second circulation pump; and a return line that connects a portion of the second circulation line that is downstream of the second circulation pump and upstream of an inlet of the second electrolysis tank and a portion of the first circulation line that is downstream of the first circulation pump and upstream of an inlet of the first electrolysis tank.
Absstract of: WO2026135053A1
A hydrogen and power production apparatus according to one aspect of the present invention comprises a unit cell comprising a cathode, an anode, and a ceramic membrane, which is an oxygen ion conductor, disposed between the cathode and the anode, wherein a by-product gas containing carbon monoxide is supplied to the anode, water is supplied to the cathode, hydrogen is generated at the cathode of the unit cell by an electrochemical reaction of the water, and electric power can be generated in an external circuit electrically connecting a cathode-side current collector and an anode-side current collector of the unit cell.
Absstract of: DE102024212188A1
Die Erfindung betrifft ein Verfahren zum Betrieb einer Elektrolyseanlage (10), die einen Elektrolyseur (1) mit einer Vielzahl von elektrisch in Serie geschalteten Elektrolysezellen (5) aufweist, wobei Prozesswasser (H2O) den Elektrolysezellen (5) zugeführt und die Elektrolysezellen (5) mit einem Strom beaufschlagt werden, wobei als Produktgase Wasserstoff (H2) und Sauerstoff (O2) erzeugt werden, und wobei das Prozesswasser (H2O) in einem Prozesswasserkreislauf (31) geführt wird. Die Temperatur (TP) des Prozesswassers (H2O) wird dadurch geregelt, indem ein Temperatursollwert (TSET) für die Vorlauftemperatur (TIN) des Prozesswassers (H2O) vorgegeben wird, wobei die Betriebsstunden (OH) des Elektrolyseurs (1) aufgezeichnet und eine durch den Betrieb hervorgerufene Wirkungsgradeinbuße (Δη) ermittelt wird. Der Temperatursollwert (TSET) für die Vorlauftemperatur (TIN) wird in Abhängigkeit von der Wirkungsgradeinbuße (Δη) eingestellt.Die Erfindung betrifft ferner eine Elektrolyseanlage (10), die für die Durchführung des Verfahrens eingerichtet ist.
Absstract of: WO2026133249A1
An electrolyzer (100) for producing hydrogen gas from an electrolyte fluid, comprising: a first header (110) and a second header (120) mutually coupled along a coupling surface (111, 121), a frame (170) arranged between the first and second header (110, 120) and configured to define with the lateral wall (160) of the recesses (150); one or more first channels (180) in fluid communication with a relative inlet channel (130), a reaction chamber (190) in fluid communication with the first channels (180), and second channels (200) in fluid communication with the reaction chamber (190) and outlet channels (140); electrodes (210) arranged in the reaction chamber (190) and mutually spaced apart along the transversal direction (T-T), electrodes (210) being configured to electrolyze the electrolyte fluid entering the reaction chamber (190) from the first channels (180) and to produce hydrogen gas and oxygen gas on a respective electrode (210); the second channels (200) together with the reaction chamber (190) and electrodes (210) being configured to separate hydrogen gas in a first electrolyzed fluid and oxygen gas in a second electrolyzed fluid in a respective second channel (200).
Absstract of: WO2026135311A1
The present invention relates to a solid oxide electrolysis cell (SOEC) system and, more specifically, to a system capable of improving the energy efficiency of an SOEC system and reducing hydrogen production costs by effectively using waste heat generated during an industrial process. According to the present invention, a SOEC hydrogen production system using waste heat can be provided, the system comprising: an external heat source; a waste heat distribution system, which classifies, according to the temperature, waste heat supplied from the external heat source, so as to supply the classified heat to each heat exchanger; a blower for supplying air; a pump for supplying water; a vaporizer for generating steam by vaporizing the water supplied from the pump; a first heat exchanger group including an air-preheating first heat exchanger for preheating the air supplied from the blower and a steam-preheating first heat exchanger for preheating the steam supplied from the vaporizer; a second heat exchanger group including a steam-generating second heat exchanger, which heats the vaporizer so as to generate the steam from the water, and a steam temperature-maintaining second heat exchanger, which maintains the temperature of the steam; a plurality of high-temperature heat exchangers including an air-heating high-temperature heat exchanger for increasing the temperature of the preheated air and a steam-heating high-temperature heat exchanger for increasing the temperature of the pre
Absstract of: WO2026132267A1
The invention concerns an electrode for gas evolution in electrochemical processes and a method for its preparation, the electrode comprising a metal substrate provided with a single catalytic coating layer, wherein said catalytic coating layer consists essentially of a rare earth metal selected from praseodymium, cerium and lanthanum and noble metals selected from platinum and palladium, wherein the rare earth metal and the noble metals are present in a form of metals or oxides thereof, wherein said rare earth metal is present in an amount comprised between 20 and 80 wt.% of the total amount of metals in said catalytic coating layer, wherein said noble metals are present in an amount comprised between 20 and 80 wt.% of the total amount of metals in said catalytic coating layer, wherein said platinum is present in an amount comprised between 10 and 70 wt.% of the total amount of metals in said catalytic coating layer, wherein said palladium is present in an amount comprised between 10 and 70 wt.% of the total amount of metals in said catalytic coating, and wherein the catalytic coating layer has a total noble metal load comprised between 1 and 6 g/m2.
Absstract of: WO2026133997A1
The present invention provides a water electrolysis evaluation device 100 which accurately evaluates a water electrolysis device by separating or recovering liquid water and water vapor discharged together with an oxygen gas or a hydrogen gas, and which evaluates a water electrolysis device W that electrolyzes water so as to generate an oxygen gas and a hydrogen gas. The water electrolysis evaluation device 100 comprises: a first retainer unit 521 that separates liquid water which is discharged, together with an exhaust gas containing an oxygen gas or a hydrogen gas, from an anode W1 or a cathode W2 of the water electrolysis device W; and a second retainer unit 522 that condenses and separates water vapor which is contained in the exhaust gas that has passed through the first gas-liquid separation unit 521.
Absstract of: WO2026133784A1
The purpose of the present invention is to provide a water electrolysis control system and a water electrolysis control method that, in a water electrolysis system for producing green hydrogen, have the capability of contributing to balancing related to electric power provided to a power system and can suppress reductions in the operating rate of an electrolysis stack. This water electrolysis control system for an electrolysis system that is connected to a power system and has an electrolysis stack for producing hydrogen is characterized by comprising: a voltage measurement unit, an electric current measurement unit, and a temperature measurement unit that are installed in the electrolysis stack; a power supply device that receives an electric power command from an upper control; and a control unit that controls at least one of the flow rate of water to the electrolysis stack and a cooling amount, said control unit controlling the temperature of the electrolysis stack on the basis of a change in the electric power command from the power system.
Absstract of: WO2026134168A1
Problem To provide a water electrolysis anode catalyst capable of reducing an increase in hydrogen concentration caused by cross leakage in the anode of a membrane electrode assembly of a water electrolysis apparatus. Solution The present invention pertains to a water electrolysis anode catalyst in which platinum fine particles are supported on a base catalyst having an oxygen evolution activity. A base catalyst of the present invention contains a metal or a metal compound that has a higher oxygen evolution activity than platinum. The platinum fine particles supported on the base catalyst have an average particle diameter of 1-55 nm. In the particle size distribution of the platinum fine particles supported on the base catalyst, the number-based cumulative 90% particle diameter is preferably 90 nm or less.
Absstract of: WO2026133268A1
The present invention relates to a non-stoichiometric Ni0 .85Se/NaCI composite nanomaterial obtained from a nickel selenide and sodium chloride, useful as a multifunctional electrocatalyst and/or photocatalyst for the evolution of hydrogen and oxygen from water, and/or for urea oxidation, and which can also act as a mediator in the oxygen evolution reaction, and the simultaneous purification of aqueous solutions contaminated by organic pollutants. The invention also relates to the method for obtaining said composite nanomaterial, together with the use thereof for obtaining a multifunctional electrode for the evolution of hydrogen and oxygen from water, and/or for urea oxidation. The invention also relates to a multifunctional electrode comprising the non- stoichiometric Ni0 . 85Se/NaCI composite nanomaterial of the invention.
Absstract of: WO2026130558A1
A core-shell structured catalytic material, a manufacturing method therefor, and a use thereof. The core-shell structured catalytic material comprises an anion-modified material serving as a substrate and an anion-conductive material supported on the anion-modified material. An electrode having said core-shell structure is applicable to hydrogen-production operating conditions for water electrolysis containing chloride ions, and efficient hydrogen production processes can be implemented under the operating conditions.
Absstract of: US20260179989A1
0000 Described is an SOEC-SOFC-HBR hybrid system for green ammonia production, and more particularly an SOEC-SOFC-HBR hybrid system configured such that a solid oxide electrolysis cell (SOEC) is operated using electricity produced from renewable energy such as wind power or sunlight, intermittency of the renewable energy is complemented by a solid oxide fuel cell (SOFC), hydrogen produced by the solid oxide electrolysis cell (SOEC) and nitrogen provided by the solid oxide fuel cell (SOFC) are input to a Haber-Bosch reactor, and heat from the SOFC and the Haber-Bosch reactor is collected to efficiently and continuously produce green ammonia.
Absstract of: US20260176772A1
0000 A hydrogen generator with pressure relief function includes a water tank having an accommodation space for accommodating electrolytic water, an electrolysis module arranged in the accommodation space of the water tank to electrolyze the electrolytic water from the water tank to generate gas comprising hydrogen, a humidifying cup arranged above the water tank to humidify the gas comprising hydrogen and having a humidifying chamber and a gas flow channel which are isolated from each other, and the gas flow channel is connected with the water tank. A first valve component is configured to selectively connect the humidifying chamber and an external environment, and a second valve component is configured to selectively connect the accommodation space and the humidifying chamber. When the electrolysis module stops operating, an external air from the external environment enters into the accommodation space through the first valve component and the second valve component.
Absstract of: AU2024399357A1
The present disclosure relates to apparatuses for producing hydrogen, and to top-down methods for producing nanoparticles. Different mechanical mills may be used to break down micron sized soil or sand particles and to react the particles with water, particularly sea water.
Absstract of: AU2024401570A1
The invention relates to a method for producing an electrode (10) for use in alkaline electrolysis of water, the method comprising: providing a metal substrate (12); providing a coating material (26) comprising powder (28) consisting of a catalyst material (20), and comprising non-metal particles (24); and coating at least a portion of the substrate with the coating material. The invention also relates to electrodes produced in this way.
Absstract of: WO2026128931A1
The invention relates to a rectifier arrangement for hydrogen electrolysis, comprising a first transformer (1) for transforming an input voltage U1 into a secondary voltage U1', wherein the transformer (1) has N>1 winding taps (2), and wherein an on-load tap changer (4) is provided that is designed to switch the winding taps (2) of the first transformer (1) such that the output voltage U1' can be switched into N stages, and wherein a second transformer (5) is provided for transforming the secondary voltage U1' into an output voltage U2 having a number M>1 of winding taps (6), wherein a second on-load tap changer (7) connected to the controller (3) is provided, wherein the first transformer (1) is connected in series with the second transformer (5) such that the output voltage U2 can be switched into NxM stages, wherein the transformers (1, 5) are arranged on separate iron cores, and wherein a passive rectifier (8) is provided for generating an output direct current IDC and an output DC voltage UDC.
Absstract of: WO2026054606A1
The present invention relates to a porous water electrolysis separation membrane using a boron nitride compound. More specifically, the porous water electrolysis separation membrane comprises a porous polymer support and a boron nitride compound inserted into the inside of the porous polymer support or formed on a surface thereof. The water electrolysis separation membrane according to the present invention as described above exhibits excellent heat resistance and stability and has smaller pore sizes, thereby reducing the permeability of hydrogen and oxygen and achieving high hydrogen gas purity. In addition, with a reduced thickness, the water electrolysis separation membrane exhibits low sheet resistance and thus increases current density to improve electrolytic cell efficiency.
Absstract of: WO2026130046A1
Provided in the present application are a sealing gasket and an electrolyzer. The sealing gasket comprises: an outer sealing portion provided with a hollow structure; and an inner sealing portion at least partially arranged in the hollow structure. The resilience rate of the inner sealing portion is greater than that of the outer sealing portion, and the compressive stress of the outer sealing portion is greater than that of the inner sealing portion, such that when the sealing gasket is clamped and fixed by two adjacent cell frames, the inner sealing portion can exhibit a sufficient sealing capability at an inner sealing position, and the outer sealing portion can have sufficient support strength at an outer sealing position, so as to ensure a cell gap. Thus, on the basis of the differentiated design of the resilience rate and the compressive stress of the outer sealing portion and the inner sealing portion, the outer sealing portion and the inner sealing portion can complement each other's strengths, such that the sealing gasket of the present application can simultaneously meet the requirements for the sealing capabilities and support strength at different positions between cell frames. In addition, the sealing gasket of the present application is also applicable to large electrolyzers.
Absstract of: US20260179976A1
A solid oxide cell stack fastening apparatus, in which downward pressure applied to the solid oxide cell stack is uniform throughout, includes a housing which accommodates a solid oxide cell stack and includes a first coupling part on one side thereof, and a first block which includes a second coupling part and an elastic member in contact with the solid oxide cell stack. The first coupling part and the second coupling part each have screw threads coupled to each other.
Absstract of: AU2024431660A1
The present invention provides: an operation method for an electrolysis device that is able to quickly reach a rated load; a control device for an electrolysis device; and an electrolysis system. Provided is an operation method for an electrolysis device (100) that is provided with a temperature adjuster (30), which adjusts the temperature of an electrolytic solution supplied to an electrolytic cell (40), the electrolytic cell (40), which electrolyzes the electrolytic solution supplied thereto via the temperature adjuster (30), and a gas-liquid separator (20), which separates a gas and a liquid produced by the electrolytic cell (40), wherein in a state in which the electrolysis device (100) is stopped, warm water is supplied to the temperature adjuster (30).
Absstract of: WO2026134138A1
The purpose of the present invention is to increase the production volume of hydrogen generated by water electrolysis and to remove hydrochloric acid during the electrolysis of saltwater. The present invention solves the problem by comprising: a container for storing saltwater; a positive electrode and a negative electrode for electrolysis; and a metal member disposed at a predetermined distance from at least one of the positive electrode and the negative electrode, wherein the metal member is configured to chemically react with hydrochloric acid produced by the electrolysis to generate hydrogen gas.
Absstract of: US20260176778A1
0000 Provided are a membrane electrode assembly having a structure in which a cathode catalyst layer, a hydroxide ion-conductive membrane, and an anode catalyst layer are laminated in this order, in which a tensile strength (a) and a breaking elongation (b) of a water-swollen body of a polymer contained in the cathode catalyst layer and/or the anode catalyst layer and a tensile strength (c) and a breaking elongation (d) of a water-swollen body of a hydroxide ion-conductive polymer constituting the hydroxide ion-conductive membrane satisfy the following relationships (Ri) and (Rii), a method for producing hydrogen, and a hydrogen production system. 0000 Tensile strength ( a ) > tensile strength ( c ) ( Ri ) Breaking elongation ( b ) > breaking elongation ( d ) ( Rii )
Absstract of: AU2024399298A1
The invention relates to the synthesis of urea from ammonia and carbon dioxide, wherein the hydrogen required for ammonia synthesis is obtained both by steam reforming of feed natural gas (grey hydrogen) and by electrolysis of water using electricity from renewable energy sources (green hydrogen). As the proportion of green hydrogen increases, the amount of carbon dioxide formed in the synthesis gas during steam reforming is no longer sufficient for the synthesis of urea. Therefore, flue gas, which is formed during the combustion of a fuel gas composed of fuel natural gas and combustion air and which also contains carbon dioxide, is additionally used. The oxygen formed during the electrolysis of water is introduced into the flue gas, and the modified flue gas is fed to a secondary reformer; and/or the fuel natural gas is combusted together with combustion air and the oxygen formed during electrolysis. Excess nitrogen is preferably separated from the synthesis gas before it is used for the synthesis of ammonia.
Absstract of: US20260176133A1
0000 The present invention relates to a clean energy convergence center using blue and green hydrogen. According to an embodiment of the present invention, the clean energy convergence center comprises: a clean hydrogen production base for producing blue and green hydrogen through the capture, storage, and recycling of carbon dioxide generated during methane reforming; and at least one clean hydrogen node that is supplied with the blue and green hydrogen produced from the clean hydrogen production base. The clean hydrogen nodes are distributed in large numbers throughout the country in consideration of factors including the area and population of each of regions and the distance to the clean hydrogen production base. The clean hydrogen production base and the clean hydrogen nodes are connected, and infrastructure including logistics, rest facilities, offices, and restaurants is expanded around each of the distributed clean hydrogen nodes.
Nº publicación: US20260176779A1 25/06/2026
Applicant:
FUJIFILM CORP [JP]
FUJIFILM Corporation
Absstract of: US20260176779A1
0000 Provided are a hydroxide ion-conductive membrane including a porous substrate and a hydroxide ion-conductive polymer disposed at least in pores of the porous substrate and having a thickness of the hydroxide ion-conductive membrane of 5 μm or more and less than 50 μm, in which the polymer has 50% by mole or more of a constituent component (I) derived from a polyfunctional polymerizable monomer having a total of two or more atoms of at least one of an oxygen atom, a sulfur atom, or a nitrogen atom in a structural moiety other than a polymerizable group in constituent components of the polymer, and a method for producing the hydroxide ion-conductive membrane, and a membrane electrode assembly, and a method for producing hydrogen and a hydrogen production system, each using the membrane electrode assembly.
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