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977
resultados
Última actualización
06/07/2025 [07:03:00]
Resultados 75 a 100 de 977
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: EP4576478A1
The invention relates to a water electrolysis installation (P) comprising a plurality of electrolysis clusters (Ci) operated at respective electrical power setpoints (P<sup>i</sup><sub>k</sub>). The installation comprises and a supervision unit (SU) for operating the installation (P) according to an electrical network flexibility signal (FS<sub>k</sub>), the supervision unit (SU) comprising a modulation controller (MOD) for modulating synchronously the electrical power drawn by the installation (P) from an electrical network (NET) according to a preset arrangement, a priority sequencer (SEQ) to establish the preset arrangement asynchronously to the modulation controller (MOD), and a regulator module (REG) to regulate the actual power (P<sub>k</sub>) drawn by the installation.
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: 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: 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: 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: 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: 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: 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: KR20250093044A
본 발명의 예시적인 실시예들에 따르면, 수소 생산 시스템이 제공된다. 상기 수소 생산 시스템은, 스팀 공급부로부터 제공받은 제1 스팀을 전기 분해하여 수소 및 산소를 포함하는 제1 가스를 제공하도록 구성된 제1 고체산화물 수전해 셀을 포함하는 제1 SOEC 부; 물을 포함하는 냉매를 이용하여 상기 제1 가스를 냉각하고, 제2 스팀과 상기 수소 및 산소를 포함하는 제2 가스를 제공하도록 구성된 열교환부; 및 상기 제2 스팀을 전기 분해하여 산소 및 수소를 포함하는 제3 가스를 제공하도록 구성된 제2 고체산화물 수전해 셀을 포함하는 제2 SOEC 부; 를 포함하고, 상기 제1 스팀은, 상기 제1 고체산화물 수전해 셀의 작동 온도와 같거나, 상기 제1 고체산화물 수전해 셀의 작동 온도보다 높은 온도로 상기 제1 고체산화물 수전해 셀에 공급된다.
Resumen de: WO2025127755A1
A hydrogen production apparatus of the present invention comprises: an ammonia decomposition reactor for decomposing ammonia to discharge a mixed gas including hydrogen, nitrogen, and unreacted ammonia; an ammonia remover for receiving the mixed gas, adsorbing and removing the unreacted ammonia included in the mixed gas, and discharging a first product gas including hydrogen and nitrogen and a first tail gas; and a nitrogen remover for receiving the first product gas, removing nitrogen included in the first product gas, and discharging a second product gas including hydrogen and a second tail gas, wherein the second product gas discharged from the nitrogen remover is resupplied to the nitrogen remover as a purge gas and a pressurizing gas. According to the hydrogen production apparatus of the present invention, high-purity hydrogen can be continuously produced in large quantities.
Resumen de: KR20250092336A
본 발명에 의하면, 수저해 시스템; 및 상기 수전해 시스템을 원자력 발전 시스템과 연계시키는 중간 열교환 시스템을 포함하며, 상기 수전해 시스템은, 저온 수전해 방식으로 전해수를 수소와 산소로 전기분해하여 수소를 생성하고 상기 원자력 발전 시스템으로부터 상기 전기분해에 필요한 전력을 공급받는 수전해기와, 상기 수전해기로부터 생성된 수소가스를 냉수와 열교환시켜서 냉각하는 수소가스 냉각기를 구비하며, 상기 전해수는 상기 수전해기에 순환 공급되며, 상기 중간 열교환 시스템은 전해수 열교환기와, 흡수식 냉동기와, 냉동기 열교환기를 구비하며, 상기 전해수 열교환기는 상기 전해수를 상기 원자력 발전 시스템에 구비되는 증기 발생기로 공급되는 급수와 열교환시켜서 상기 전해수를 냉각하고 상기 급수를 가열하며, 상기 냉수가 상기 흡수식 냉동기의 냉동기 냉수로서 상기 흡수식 냉동기와 상기 수소가스 냉동기 사이를 순환하고, 냉동기 온수가 상기 흡수식 냉동기와 상기 냉동기 열교환기 사이를 순환하며, 상기 냉동기 열교환기는 상기 냉동기 온수를 상기 원자력 발전 시스템에 구비되는 증기 발생기로 공급되는 급수와 열교환시켜서 상기 급수를 가열하는 원자력 발전 연계형 수소 생산 설비가 제공
Resumen de: KR20250092308A
본 발명에 의하면, 메탄을 포함하는 메탄 원료가스에 대한 자열 개질 반응을 수행하여 수소를 포함하는 개질가스를 생산하는 자열 개질 반응기; 및 상기 자열 개질 반응기로 상기 자열 개질 반응에 필요한 산소를 공급하는 산소 공급부를 포함하며, 상기 산소 공급부는 물을 수소와 산소로 전기분해하는 수전해기에서 생성된 부생산소를 상기 자열 개질 반응기에 공급하는 부생산소 공급 시설을 구비하는 자열 개질 수소 생산 설비가 제공된다.
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: WO2025127526A1
According to exemplary embodiments of the present invention, a hydrogen production system is provided. The present invention comprises: a hydrogen generation unit configured to receive reduced iron from a reduced iron generation unit configured to generate reduced iron by reducing powdered iron ore in a reducing gas atmosphere, and to generate hydrogen from ammonia by bringing the reduced iron into contact with the ammonia; and a regeneration unit configured to receive the reduced iron from the hydrogen generation unit and to regenerate the reduced iron by reducing the reduced iron in a hydrogen gas atmosphere. According to other exemplary embodiments of the present invention, a method for producing hydrogen is provided.
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.
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: WO2025124766A1
The invention relates to an electrolytic cell (01) for the electrolysis of CO2, comprising a cathode side (02) and an anode side (03). The electrolytic cell (01) comprises a cathode plate (04), a gas chamber (06), a gas-diffusion layer (08), a catalyst layer (09), a water chamber (07) and an anode plate (05). The contacting of the catalyst layer (09) is optimized by using a plurality of current bridges (10). To this end, these current bridges (10) are electrically conductively connected to the cathode plate (04) and to the catalyst layer (09) while penetrating the gas-diffusion layer (08).
Resumen de: US2025198025A1
A method of operating an electrolyzer module includes providing a first air stream and steam into a stack of electrolyzer cells located in a hotbox and outputting a product stream containing hydrogen and steam, and an oxygen exhaust stream, providing the product stream to an internal product cooler (IPC) heat exchanger located in the hotbox to reduce the temperature of the product stream by transferring heat to the first air stream, and providing the product stream from the IPC to an external product cooler (EPC) heat exchanger located outside of the hotbox and inside of a cabinet housing the hotbox to further reduce the temperature of the product stream by transferring heat to a fluid stream.
Resumen de: WO2025125346A1
The present application relates to a water electrolyzer cell (26), related stack of water electrolyzer cells and process The cell (26) comprises a cell casing (34) defining an anodic compartment (36) and a cathodic compartment (38). The anodic compartment (36) comprises an anode chamber (50) and the cathodic compartment (38) comprises a cathode chamber (58). The cell casing (34) comprises a membrane (40) separating the anode chamber (50) from the cathode chamber (58). The anodic compartment (36) defines, within the cell casing (34), an anodic degassing cavity (52) located on top of the anode chamber (50). On the other side, the cathodic compartment (38) defines, within the cell casing (34), an cathodic degassing cavity (60) located on top of the cathode chamber (58). The cell casing (34) comprises a partition wall (42) tightly separating the anodic degassing cavity (52) from the cathodic degassing cavity (60).
Resumen de: WO2025125181A1
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.
Resumen de: WO2025125180A1
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 firing of the steam reformer and also contains carbon dioxide, is additionally used. After reducing the nitrogen content, the flue gas is fed into the reforming process. The carbon dioxide from the synthesis gas and the flue gas is combined, separated using conventional carbon dioxide scrubbing, and used for the synthesis of urea.
Nº publicación: WO2025128530A1 19/06/2025
Solicitante:
AIR LIQUIDE [FR]
AIR LIQUIDE AMERICAN [US]
L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE,
AMERICAN AIR LIQUIDE, INC
Resumen de: WO2025128530A1
A method for producing hydrogen using a feed stream comprising ammonia is provided. The method can include the steps of: cracking a gaseous ammonia feed in an ammonia cracker to produce a cracked gas stream comprising hydrogen, nitrogen, and unreacted ammonia; cooling the cracked gas stream to a first temperature that is sufficient for condensing at least a portion of the unreacted ammonia to form a dual phase fluid; separating the dual phase fluid in an ammonia separator to produce a liquid ammonia stream and a top gas stream comprised predominately of hydrogen and nitrogen; removing additional ammonia from the top gas stream using a front-end purification system to form a purified top gas stream; further cooling the purified top gas stream to a second temperature that is sufficient for condensing at least a portion of the nitrogen within the top gas stream to form a dual-phase stream, wherein the second temperature is colder than the first temperature; introducing the dual-phase stream to a cryogenic hydrogen separator under conditions effective for separating hydrogen and nitrogen, thereby creating a liquid nitrogen stream and a hydrogen top gas; warming and vaporizing the liquid nitrogen stream to produce a gaseous nitrogen stream; warming the hydrogen top gas to produce a gaseous hydrogen product stream: and recycling the liquid ammonia stream produced by the ammonia separator to a point upstream the ammonia cracker.
BOPI
Sede Electrónica
