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1002
resultados
Última actualización
01/07/2025 [07:02:00]
Resultados 25 a 50 de 1002
Resumen de: DE102023213301A1
Die Erfindung betrifft ein Verfahren zum Rückführen von Kathodenwasser (7) in einem Elektrolyseuraggregat (1), insbesondere einem PEM- oder AEM-Elektrolyseuraggregat (1), wobei zeitlich vor einem Wiedereinspeisen des einen Elektrolysezellenstapel (10) des Elektrolyseuraggregats (1) verlassenden Kathodenwassers (7) in eine Mediumversorgung (20) des Elektrolyseuraggregats (1), ein im Kathodenwasser (7) vorliegender Wasserstoff (8) abgetrennt wird, wobei in einer Wasserstoff-Abtrenneinrichtung (50) des Elektrolyseuraggregats (1), in einem ersten Abtrennschritt durch einen Überdruck in einem ersten Volumen (51) der Wasserstoff-Abtrenneinrichtung (50), Wasserstoff (8) aus dem wasserstoffreichen Kathodenwasser (7) abgetrennt wird, und in einem auf den ersten Abtrennschritt zeitlich folgenden zweiten Abtrennschritt durch eine Verweildauer des nun wasserstoffärmeren Kathodenwassers (7) in einem vom ersten Volumen (51) verschiedenen zweiten Volumen (52) der Wasserstoff-Abtrenneinrichtung (50), weiterer Wasserstoff (8) abgetrennt wird.
Resumen de: CN119403758A
A process for dissociating ammonia into a dissociated hydrogen/nitrogen stream in a catalyst tube within a radiant tube furnace and an adiabatic or isothermal unit containing a catalyst, and a downstream purification process unit for purifying the dissociated hydrogen/nitrogen stream into a high purity hydrogen product.
Resumen de: AU2023284373A1
The present invention relates to the technical field of hydrogen energy power generation, and provided is a hydrogen energy uninterruptible power system. Said system comprises a hydrogen production unit, a power storage unit, a power generation apparatus, and a control unit, wherein the hydrogen production unit is able to utilize electrolysis to prepare hydrogen and oxygen gases; the power storage unit can supply power to the hydrogen production unit, and can output power to the outside; the power generation apparatus can receive the hydrogen and oxygen gases output by the hydrogen production unit and generate power, and the power generation apparatus can output power to the outside or transfer power to the power storage unit; and the control unit communicates with the hydrogen production unit, the power storage unit, and the power generation apparatus by means of electrical signals.
Resumen de: WO2025135726A1
The present invention provides a hydrogen vent system for discharging hydrogen generated in a high-temperature water electrolysis stack to the outside, comprising: a first pipe unit connected to the high-temperature water electrolysis stack and having a curved portion; a drain line which is connected to the first pipe unit and through which condensed water is drained; and a discharge unit which is connected to the first pipe unit and which releases hydrogen upward into the air, wherein a surge tank that maintains pressure and moves the condensed water to the drain line is disposed in the first pipe unit.
Resumen de: WO2025133594A1
An energy system (100) for supplying electricity to a load (108) and a method of using said system are provided, the system comprising renewable electricity generation capacity (102) comprising solar and wind generation capacity, a battery (110) with a maximum electricity storage capacity sufficient to meet the mean load for up to 1 hr, an electrolyser (112) configured for hydrogen gas production and capable of operating at from 0.3 to 0.8 times the maximum output of the renewable electricity generation capacity; and gas storage (114) configured to receive the hydrogen gas; wherein the renewable electricity generation capacity is in electrical communication with the electrolyser via the battery and wherein the system is configured to allow electrical communication to the load such that electrical output not consumed by the load is used to generate hydrogen gas.
Resumen de: EP4575040A1
A Ni-based porous electrode for water electrolysis comprising (a) a macroporous substrate having a specific thickness, porosity level, and a pore size; (b) a first layer of a metal or a metal alloy as defined herein covering the macroporous substrate; and (c) a second layer of Ni, a Ni-X alloy or a Ni-X-Y alloy as defined herein covering the first layer (b), wherein the Ni-based porous electrode is free from Pt-group metals and rare-earths; a process for the manufacturing of the Ni-based porous electrode; the use of the Ni-based porous electrode to catalyze the hydrogen evolution reaction (HER); and a water electrolyzer comprising the Ni-based porous electrode.
Resumen de: CN119678338A
The invention relates to a method for operating a renewable power plant (100) comprising at least one wind turbine (101) and an electrolyser system (110), the renewable power plant being connectable with an electrical grid (190) via a circuit breaker (123) located at a point of common coupling (PCC), wherein the renewable power plant comprises an internal grid (191) connecting the at least one wind turbine and the electrolyzer system with a point of common coupling, and wherein the method comprises detecting a low voltage at any one of the at least one wind turbine, and electrically disconnecting the electrolyzer system from the internal grid in response to detecting the low voltage.
Resumen de: EP4574749A1
Die Erfindung betrifft ein Verfahren sowie eine Anlage Verfahren zur Erzeugung eines Wasserstoffprodukts (12), bei dem ein erster Teil eines bereitgestellten Ammoniaks (F) überhitzt und in einem Spalteinsatz (1) einer brennerbefeuerten Spaltofenanordnung (S) zugeführt wird, um mit katalytischer Unterstützung zu einem Wasserstoff, Stickstoff und Ammoniak enthaltenden Spaltgas (3) umgesetzt zu werden, von dem zumindest ein Teil einer Trenneinrichtung (T) zugeführt wird, in der eine Wasserstofffraktion (6) sowie ein gegenüber dem Spaltgas (3) an Stickstoff angereichertes, Wasserstoff und Ammoniak enthaltendes Restgas (7) erhalten werden, von dem zumindest ein Teil zusammen mit einem zweiten Teil (14) des bereitgestellten Ammoniaks (F) zur Befeuerung der Spaltofenanordnung (S) eingesetzt wird. Kennzeichnend hierbei ist, dass der zweite Teil (14) des bereitgestellten Ammoniaks (F) vor seinem Einsatz zur Befeuerung der Spaltofeneinrichtung (S) überhitzt wird.
Resumen de: WO2024178009A2
A hydrogen generating cell comprising an input electrode plate pair, an output electrode plate pair, an additional X plate electrode positioned adjacent the output electrode plate pair, and a plurality of intermediate electrode plates disposed between the input and output electrode plate pairs. A plasma torch is spaced apart from and inductively coupled to the input electrode plate pair. A pulsed DC voltage is applied to the plasma torch and X-plate, while a lower voltage pulsed DC voltage is applied to the input and output electrode plate pair to cause generation of hydrogen gas from an aqueous solution in which the cell is immersed.
Resumen de: EP4574255A1
In a method of preparing an ammonia decomposition catalyst according to embodiments of the present disclosure, a mixture of a metal oxide including lanthanum and a heterogeneous metal and aluminum oxide is prepared, the mixture was subj ected to steam treatment to form a carrier, and an active metal is supported on the carrier to prepare an ammonia decomposition catalyst. The ammonia decomposition catalyst according to embodiments of the present disclosure is prepared by the above-described preparation method.
Resumen de: EP4576285A1
An electrochemical cell module includes a module housing and electrochemical cells located in the module housing and configured to generate power or hydrogen and to output an exhaust. The module also includes a vent housing attached to the module housing, an exhaust duct located in the vent housing, and a filter cartridge located in the exhaust duct. The exhaust duct contains an inlet that is configured to receive the exhaust from the module housing, and an outlet that is configured to direct the exhaust away from the module housing. The filter cartridge contains a particulate filter.
Resumen de: CN119790190A
The invention relates to an electrolysis device (1) for producing hydrogen gas from an aqueous alkaline solution by electrochemical reaction, comprising an anode half-cell (2) and a cathode half-cell (3). The anode half-cell (2) and the cathode half-cell (3) are separated by a membrane (4), and the cathode half-cell (3) can be filled with the aqueous alkali. The anode half-cell (2) comprises an anode electrode (5) and the cathode half-cell (3) comprises a cathode electrode (6), the anode electrode (5), the cathode electrode (6) and the membrane (4) forming a membrane electrode unit (7). Furthermore, during normal operation of the electrolysis device (1), the initial filling amount of the alkaline solution in the cathode half-cell (3) can be varied exclusively by a diffusion process through the membrane electrode unit (7) and/or by an electrochemical reaction of the alkaline solution in the membrane electrode unit (7).
Resumen de: WO2024204928A1
A solid oxide cell stack includes a plurality of interconnects, a first solid oxide cell disposed between the plurality of interconnects and including a first fuel electrode, a first electrolyte, and a first air electrode, and a second solid oxide cell disposed to be adjacent to the first solid oxide cell in a lateral direction between the plurality of interconnects and including a second fuel electrode, a second electrolyte, and a second air electrode, wherein an operating temperature of the first solid oxide cell is higher than an operating temperature of the second solid oxide cell.
Resumen de: WO2025126639A1
Provided is a method for producing a hydrogen gas, which enables the production of a hydrogen gas with high energy efficiency. This method for producing a hydrogen gas includes: placing water between electrodes; and allowing pulsed discharge to occur between the electrodes to decompose water molecules, thereby generating the hydrogen gas. In the method, the frequency for the pulsed discharge is 190-196 kHz or a double vibration frequency thereof.
Resumen de: WO2025041808A1
Provided is an electrode exhibiting high oxygen generating electrode catalytic activity as compared with conventional electrodes using manganese-based oxide as an oxygen generating electrode catalyst.
Resumen de: DE102023213299A1
Die Erfindung betrifft ein Verfahren zum Rückführen von Kathodenmedium (7) in einem Elektrolyseuraggregat (1), insbesondere einem PEM- oder AEM-Elektrolyseuraggregat (1), wobei zeitlich vor einem Wiedereinspeisen des einen Elektrolysezellenstapel (10) des Elektrolyseuraggregats (1) verlassenden Kathodenmediums (7) in ein Mediumreservoir (23) einer Mediumversorgung (20) des Elektrolyseuraggregats (1), ein im Kathodenmedium (7) vorliegender Wasserstoff (8) abgetrennt wird, und ferner zeitlich vor dem Wiedereinspeisen des Kathodenmediums (7) in das Mediumreservoir (23), in einem Verdünnschritt (V) des Rückführverfahrens dem Kathodenmedium (7) frisches Versorgungsmedium (3) zugeführt und derart eine Konzentration von Wasserstoff (8) im Kathodenmedium (7) verringert wird.
Resumen de: PL447183A1
Przedmiotem zgłoszenia jest wysokociśnieniowy elektrolizer alkaliczny wodoru i tlenu, będący urządzeniem, które jednocześnie wytwarza wodór i tlen na drodze procesu elektrolizy wody, po doprowadzeniu do anody i katody (elektrod) potencjału elektrycznego. Wysokociśnieniowy elektrolizer ma dwie niezależne od siebie pompy (12) umieszczone po jednej na dwóch przewodach zasilających elektrolitem alkalicznym, gdzie oba przewody zasilające połączone są po stronie tłocznej pomp (12) do dwóch stron hydro akumulatora (11), a w dalszym biegu przewodów zasilających jeden przewód podłączony jest do króćca zasilającego obiegu tlenowego (T), a drugi przewód do króćca zasilającego obiegu wodorowego (W) i w dalszym biegu przewód (W) połączony jest równolegle z obiegami omywającymi elektrolitem katody, a przewód (T) połączony jest równolegle z obiegami omywającymi anody pakietu elektrod katoda/anoda (2), gdzie sąsiadujące ze sobą obiegi katody i anody oddzielone są od siebie szczelnie membranami elektrolitycznymi (3).
Resumen de: EP4574255A1
In a method of preparing an ammonia decomposition catalyst according to embodiments of the present disclosure, a mixture of a metal oxide including lanthanum and a heterogeneous metal and aluminum oxide is prepared, the mixture was subj ected to steam treatment to form a carrier, and an active metal is supported on the carrier to prepare an ammonia decomposition catalyst. The ammonia decomposition catalyst according to embodiments of the present disclosure is prepared by the above-described preparation method.
Resumen de: WO2024120594A1
A hydrogen generation system comprising a wind turbine installation including a wind energy generator (18) connected to a hydrogen electrolyser (30) by a power converter system (22) The power converter system (22) comprises a generator-side converter (24) and a electrolyser-side converter (26) which are coupled together electrically by a DC-link (28), and a converter controller (50) comprising a generator-side control module (50) coupled to the generator-side converter and a electrolyser-side control module (52) coupled to the electrolyser-side converter. The converter controller is configured to control the load torque on the wind energy generator and the electrical power fed to the electrolyser to implement a mechanical damping function associated with the wind turbine installation whilst maintaining a stable DC-link voltage. Beneficially, therefore, the wind turbine installation can implement active control of electromechanical damping systems whilst operating the electrolyser at an efficient operating point.
Resumen de: WO2025124791A1
The invention relates to an offshore electrolysis system (100) comprising a wind turbine (1) having a tower (19), which is anchored to the seabed, and having an electrolysis plant (5), wherein the electrolysis plant (5) is connected to the wind turbine (1) by a supply line (11), and wherein the electrolysis plant (5) has an electrolyser (13) which is arranged in a container (9), wherein the container (9) is arranged below sea level (25). The invention also relates to a method for operating a corresponding offshore electrolysis system. In this method, water is broken down into hydrogen (H2) and oxygen by an electrolyser (13) of the electrolysis plant (5), which electrolyser is located below sea level (25), wherein the hydrogen (H2) produced is transported away via a product gas line (7).
Resumen de: WO2025124674A1
Alkaline electrolyser and a method for its operation including gas purging An alkaline electrolyser comprising a stack (17) of electrolytic cells (1) is used for producing hydrogen gas (8). Purified hydrogen gas and purified oxygen gas is used for purging the corresponding cathode and anode compartments (5, 6) for preventing buildup of dangerous gas mixtures by gas crossover during stop, before starting, or when running production low.
Resumen de: US2025186304A1
A hydrogen generation device includes a tubular tank and a top lid combined with the tank. An immersion tube in which a hydrogen generating agent package is stuffed is placed in the tank. The hydrogen generating agent package is submerged in water after water is poured in the tank to generate hydrogen, which is released through a tank opening of the tank. The hydrogen generating agent package accommodates hydrogen generating agent powders including calcium oxide and aluminum powders, both of which are mixed and wrapped with a nonwoven fabric, as well as a little catalytic sodium carbonate added inside. For inhibition of free radicals and promotion of metabolism, the hydrogen generation device is further provided with a connector and a hose for a skin-care instrument, a nasal mask, an eye shield or an ear cleaner through which hydrogen is supplied as required.
Resumen de: WO2025129081A1
A method, comprising electrolyzing a CO2 input and water so as to form a first product comprising CO and H2, the electrolyzing optionally being performed over a Pd/C catalyst or a catalyst that comprises any one or more of gold, silver, iron, cobalt, nickel, copper, or zinc; and thermochemically processing the first product so as to give rise to a second product that comprises carbon nanofibers or nanotubes. A system, comprising: a first reaction zone, the first reaction zone configured to receive CO2 input and water, and the first reaction zone configured for electrolysis of the CO2 input and water to evolve a product that comprises CO; a second reaction zone, the second reaction zone configured to receive a product from the first reaction zone, the second reaction zone configured to support at least one of the Boudouard reaction (R1) and CO + H2 → C(s) + H2O (R2).
Resumen de: WO2025127896A1
According to exemplary embodiments of the present invention, a hydrogen production system is provided. The hydrogen production system comprises: a dry quenching facility configured to cool coke using a cooling gas; a boiler configured to receive the cooling gas from the dry quenching facility and recover heat energy of the cooling gas to produce first steam and electric power; and a water electrolysis facility configured to receive the electric power from the boiler and electrolyze second steam to produce hydrogen. According to other exemplary embodiments of the present invention, a method for producing hydrogen is provided.
Nº publicación: WO2025128535A1 19/06/2025
Solicitante:
LAIR LIQUIDE SA POUR LETUDE ET LEXPLOITATION DES PROCEDES GEORGES CLAUDE [FR]
AMERICAN AIR LIQUIDE INC [US]
L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE,
AMERICAN AIR LIQUIDE, INC
Resumen de: WO2025128535A1
A method for producing hydrogen using a feed stream comprising ammonia is provided. The method may include the steps of: cracking a gaseous ammonia feed comprising ammonia and at least 0.15% water vapor in an ammonia cracker to produce a cracked gas stream comprising hydrogen, nitrogen, unreacted ammonia, and water vapor; cooling the cracked gas stream to a separation temperature that is sufficient for condensing at least a portion of the unreacted ammonia and the water vapor to form a dual phase fluid; separating the dual phase fluid in a separator that is configured to produce an aqueous ammonia stream and a vapor stream, the vapor stream comprising predominantly of hydrogen and nitrogen; wherein the separation temperature is below 0°C.
BOPI
Sede Electrónica
