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Thermal Energy Storage with Fluid Flow Insulation

Resumen de: US20260201821A1

A thermal energy storage system with fluid flow insulation, the system including heated thermal storage blocks positioned within a housing, and a method for operating the thermal energy storage system, including providing a flow of fluid into the housing, the fluid convectively extracting heat from a top region, a side region and a bottom region of the thermal energy storage system, to generate heated fluid that insulates the thermal storage blocks from the housing and a foundation of the thermal energy storage system.

GOLD-CONTAINING CATALYST FOR REMOVAL OF HYDROGEN IN OXYGEN-RICH STREAMS

Resumen de: US20260199877A1

0000 A process for removing hydrogen from an oxygen gas stream includes electrolysing water in an electrolyser to generate a hydrogen-rich stream and an oxygen-rich stream. The oxygen-rich stream includes hydrogen. The process also includes feeding the oxygen-rich stream to a reactor having a gold-containing catalyst and contacting, in the reactor, the oxygen-rich stream with the gold-containing catalyst. The gold-containing catalyst includes gold and a second metal on an oxidic support and an oxygen partial pressure of the oxygen-rich stream in the reactor is greater than 1 bar.

COMBUSTION OF OFF-GASSES USING ENRICHED AIR FROM AN ELECTROLYTIC PROCESS

Resumen de: US20260201588A1

0000 A chemical plant in which an electrolysis section is arranged to receive at least a portion of a first steam feed and electrolyze it to provide a hydrogen stream and an oxygen-enriched stream. A first heat exchanger is arranged to receive at least a portion of the oxygen-enriched stream and a combustion air stream to transfer heat from the oxygen-enriched stream to the combustion air stream. The heated combustion air stream and at least a portion of an off-gas stream are arranged to be combusted in at least one burner to provide a combusted gas stream. The first heat exchanger is arranged to receive at least a portion of the combusted gas stream and said water stream. The first heat exchanger is arranged to transfer heat from the at least a portion of the combusted gas stream to the water stream to provide a cooled combusted gas stream and a steam stream.

ELECTROLYSIS SYSTEM COMPRISING A PRESSURE ELECTROLYZER, AND METHOD FOR OPERATING AN ELECTROLYSIS SYSTEM OF THIS TYPE

Resumen de: US20260201577A1

0000 The invention pertains to an electrolysis system with a high-pressure electrolyzer for producing hydrogen (H2) and oxygen (O2) at a nominal pressure (PN). The system includes multiple electrolysis cells, each with two half-cells separated by an ion-permeable membrane, forming an anode chamber and a cathode chamber. An oxygen product line connects to the anode chamber, while a hydrogen product line connects to the cathode chamber. The hydrogen and oxygen product lines lead to respective gas separators. The system features compressed gas accumulators for hydrogen and oxygen, enabling pressurized gas to be supplied to the electrolyzer on both sides, with adjustable primary pressures. The invention also includes a method for operating the system, where the electrolyzer is precharged with pressurized gas, and differential pressures are regulated to ensure efficient operation. This system supports both proton-exchange membrane (PEM) and alkaline electrolysis for high-pressure hydrogen and oxygen production.

METHOD FOR HANDLING AN ELECTROLYSER STACK AND ELECTROLYSER STACK AND PRODUCTION UNIT

Resumen de: US20260201578A1

0000 Electrolyser stack and production unit are provided, in which the electrolyser stack include endplates and pull rods extending between the endplates. Feet are arranged at the endplates whereby each foot includes a downwardly directed support surface arranged to abut onto a production unit track or handling unit track whereby the production unit tracks are arranged to extend in parallel with the length axis of the electrolyser stack and whereby the electrolyser stack is movable along the production unit track by sliding the feet along upward facing horizontal slide tracks of the production unit track.

METHOD FOR TRANSPORTING HYDROGEN FROM A FLOATING WIND TURBINE TO A WATERCRAFT

Resumen de: US20260200556A1

A method (100) for transporting hydrogen from a floating wind turbine (10) to a watercraft (11) is proposed in order to transport environmentally friendly energy generated by an offshore wind turbine from the offshore wind turbine to land in a simple and safe manner, wherein hydrogen is provided in a holding tank (31) of a floating wind turbine (10), wherein a watercraft (11) with a transportation tank (36) is positioned at the floating wind turbine (10), wherein the hydrogen is conveyed from the holding tank (31) to the transportation tank (36) by means of a line (35) configured to convey the hydrogen.

GAS CHROMATOGRAPH AND GAS CHROMATOGRAPHIC SYSTEM HAVING AN AGGREGATE FOR GENERATING HYDOGEN

Resumen de: US20260202385A1

0000 The invention relates to a gas chromatographic system (1000) for detecting volatile organic compounds in an analyte (320) with a gas chromatograph (100) having an injector for injecting analyte (320), a pre-concentrator (120), a column (140) equipped with a stationary phase (141) and a gas detector (150) configured to detect the analyte (320) component eluted from the column (140). The invention suggests an aggregate (160) having an outlet coupled to the gas chromatograph (100) and being configured to receive and process a hydrogen containing medium (330) for generating hydrogen (310) and supplying the hydrogen (310) to the gas chromatograph (100). The invention further relates to such an aggregate (160) and to a method of operating such a chromatographic system.

A REACTIVE SEPARATION PROCESS FOR CARBON DIOXIDE CAPTURE FROM FLUE GAS

Resumen de: US20260200820A1

0000 A system for converting CO<2 >to methanol includes a reverse water gas shift (“RWGS”) reactor configured to receive a first CO<2 >stream and a hydrogen gas stream under a sufficient temperature and a sufficient pressure for an RWGS reaction to proceed. The RWGS reactor outputs an exit stream that includes CO. The system also includes a heat exchanger/condenser in fluid communication with the RWGS reactor configured to remove water from products of the RWGS reaction to form a dried exit stream that includes CO; and a membrane contactor reactor configured to receive a combination of hydrogen, CO<2>, and the dried exit stream. The membrane contactor reactor also configured to output a first output stream including methanol dissolved in a sweep liquid and a second output stream including gaseous H<2>, gaseous CO, gaseous CO<2>, and gaseous methanol.

METHOD AND MONITORING SYSTEM FOR CONTROLLING SAFE OPERATION OF ALKALINE WATER ELECTROLYZER

Resumen de: EP4775713A1

0001 The present invention relates to the technical field of alkaline water electrolyzers for hydrogen production, in particular to a method and monitoring system for safe operation control of an alkaline water electrolyzer. The method includes: mounting at least one disc spring deformation monitoring instrument at a disc spring of the alkaline water electrolyzer to monitor the deformation of the disc spring and provide a safe operation control signal source of the electrolyzer; making a control judgment according to the deformation of the disc spring monitored by the disc spring deformation monitoring instrument to judge whether the electrolyzer is within a safe operation range; and triggering a stop signal to stop the operation of the electrolyzer when the deformation of the disc spring exceeds a specified safe use range. According to the present invention, safety problems caused when the electrolyzer operates can be effectively found, and a judgment for electrolyzer maintenance can be made in time to guarantee the safe operation of the electrolyzer.

에너지 생산 및 저장 시스템

Resumen de: WO2025093251A1

An energy production and storage system comprises a power input connection (10) for a renewable energy source (2); an electrolysis device (16) for electrolysis of water to produce oxygen, hydrogen, and heat; an electrical energy storage device (14); a two-way grid connection (12) coupled to an external electrical grid (4); and a controller (8). The controller (8) is configured to: (i) receive information relating to: actual or potential energy production from the renewable energy source (2), the amount of stored energy in the electrical energy storage device (14), and balancing requirements for the external electrical grid (4); (ii) use the energy from the renewable energy source (2) to power the electrolysis device (16) and/or for storage in the energy storage device (14); and (iii) based on the received information, operate the energy production and storage system as a balancing service provider by either: drawing power from the grid (4) to supply the electrolysis device (16), or supplying power to the grid (4) from the electrical energy storage device (14), thereby acting as a switch to aid in balancing for the external electrical grid (4).

PROTECTIVE BARRIER FOR ELECTROCHEMICAL DEVICE

Resumen de: US2025075350A1

0000 An assembly for an electrochemical device may include, among other things, a conductive metallic plate and at least one carbon layer extending along the metallic plate. The at least one carbon layer may include a plurality of carbon fibers that may establish a porous construct. A plastic film may extend between the metallic plate and the at least one carbon layer. The plastic film may impregnate the porous construct such that the at least one carbon layer may be substantially impermeable to fluid. At least some of the carbon fibers may extend through the plastic film to establish a conductive path between the at least one carbon layer and the metallic plate. A method of forming an electrochemical device is also disclosed.

FLUID-CONDUCTING PLATE ARRANGEMENT OF AN ELECTROCHEMICAL SYSTEM

Resumen de: WO2025051317A1

The invention relates to a fluid-conducting plate arrangement (3) of an electrochemical system (1), comprising a compression plate (4) which has an inner side (6), facing a stack of electrochemical cells, and an outer side (5) and is passed through by a plurality of through-openings to which a plurality of coolant passages (8, 9), namely a coolant inlet (8) and a coolant outlet (9), are to be assigned, wherein each coolant passage (8, 9) has a branch (12) which opens towards the inner side (6) and is formed by the compression plate (4) together with an insert plate (10) inserted into it on the outer side, such that the compression plate (4) has two separate passage portions (13, 14) and the insert plate (10) has a collecting portion (18) which adjoins the two passage portions (13, 14).

METHOD FOR OPERATING AN ELECTROLYSIS PLANT, AND ELECTROLYSIS PLANT

Resumen de: WO2025051652A1

The invention relates to a method for operating an electrolysis plant (1), comprising a stack (2) having an anode (3) and a cathode (4), wherein in normal operation of the electrolysis plant (1), water is supplied to the anode (3) via a water circuit (5) with an integrated pump (6), said water being split in the stack (2) by electrolysis into hydrogen and oxygen, and wherein the hydrogen produced by electrolysis is supplied to a gas-liquid separator (8) via a cathode outlet (10) of the stack (2) and a media line (7) connected thereto. According to the invention, when the electrolysis plant (1) is switched off, the current density is reduced to 0 A/cm² and the media line (7) is shut off with the aid of a valve (9), while the anode (3) continues to be supplied with water via the water circuit (5) with the aid of the pump (6). The invention further relates to an electrolysis plant (1) that is suitable for carrying out the method or can be operated according to the method.

PLATE-LIKE ELEMENT OF A CELL STACK, AND CELL STACK

Resumen de: WO2025051333A1

The invention relates to a plate-like element (10) of a cell stack (2) of an electrochemical system (1), having a first plate side (26), a second plate side (27), a plurality of openings (13, 21, 22, 23, 23') and a first structure (14) for forming a flow field for coolant and several further structures (14') for forming distributors for operating media on the first plate side (26). The structure (14) comprises a coolant conducting structure (15, 16) through which a first coolant path (15) and a second coolant path (16) arranged mirror-symmetrically thereto are formed, each of which have, starting from one of the openings (21), an elongate inflow portion (17), a centre portion (18) which starts from the inflow portion (17), fans out and describes at least one meandering bend (19), and an elongate outflow portion (20) which adjoins the centre potion (18) and is narrower than the centre portion (18). A longitudinal axis (30) of the inflow portion (17) of the first coolant path (15) matches a longitudinal axis (30) of the outflow portion (20) of the second coolant path (16), and a longitudinal axis (30') of the inflow portion (17) of the second coolant path (16) matches a longitudinal axis (30') of the outflow portion (20) of the first coolant path (15). The invention also relates to a cell stack (2) comprising a plurality of such plate-like elements (10) which are parallel to one another.

Hydrogen-Blended Fuel Gas Turbine Combined Cycle Power Generation System

Resumen de: KR20240057530A

The present invention discloses a gas turbine combined power generation system for mixed combustion of natural gas and hydrogen, which captures carbon dioxide, which is greenhouse gas, from exhaust gas emitted from a gas turbine of a power plant to reduce carbon dioxide emissions to zero, produces hydrogen using the captured carbon dioxide as a raw material, and recycles the produced hydrogen as power generation fuel. The above-described gas turbine combined power generation system for mixed combustion of natural gas and hydrogen includes a gas turbine power generation facility which produces electricity by mixing and combusting natural gas and hydrogen, a heat recovery steam generator which recovers a heat source from exhaust gas emitted from the gas turbine power generation facility, a steam turbine power generation facility which uses the heat source recovered from the heat recovery steam generator, a carbon dioxide capture facility which captures carbon dioxide from exhaust gas emitted from the gas turbine power generation facility, and a hydrogen generation facility which produces hydrogen using the carbon dioxide captured from the carbon dioxide capture facility.

극저온 분리를 이용한 암모니아 분해기로부터의 부분 액화를 통한 암모니아 회수 방법

Resumen de: EP4570744A1

0001 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.

A WATER ELECTROLYSER SYSTEM AND METHOD FOR PRODUCING COMPRESSED HYDROGEN

Resumen de: WO2025053761A1

The present invention relates to a water electrolyser system for production of compressed hydrogen, comprising a water electrolyser stack, a multiphase pump arranged downstream of the electrolyser stack and a hydrogen gas/liquid separator. The multiphase pump is arranged between the water electrolyser stack and the hydrogen gas/liquid separator. The present invention also relates to a method for production of compressed hydrogen in a water electrolyser system including: supplying deionized water or liquid electrolyte to a water electrolyser stack; producing hydrogen in a water electrolyser stack; compressing a mixture of produced hydrogen and entrained deionized water or liquid electrolyte in a multiphase pump; and separating the compressed mixture of produced hydrogen and entrained deionized water or liquid electrolyte in a hydrogen gas/liquid separator.

Hydrogen Extraction System for Ship

Resumen de: KR20260111341A

본 발명은 선박용 암모니아 수소추출시스템에 관한 것으로, 더욱 자세하게는, 암모니아 크래커로부터 얻은 분해가스와 상기 암모니아 저장탱크로부터 암모니아 크래커로 이송되는 원료가스 사이의 열교환을 수행하는 분해가스-원료가스 열교환기, 상기 분해가스-추가가스 열교환기를 통과한 열교환 분해가스와 냉각매체 사이의 열교환을 수행하는 분해가스-냉각매체 열교환기, 및 상기 분해가스 내 잔류하는 암모니아를 흡착하여 제거하는 VPSA를 포함하여 암모니아 수소추출설비에서 발생하는 잔류 암모니아를 완전히 제거하여 연료전지에 공급할 수 있다.

METHOD AND DEVICE FOR PRODUCING HYDROGEN BY MEANS OF WATER DISSOCIATION BY THERMOCHEMICAL REACTIONS UNDER (QUASI-)ISOTHERMAL CONDITIONS USING DIFFERENT POWER SOURCES

Resumen de: EP4775532A1

0001 (EN) The present invention relates to a method for producing hydrogen by means of thermochemical water dissociation cycles under (quasi-)isothermal conditions, wherein said method comprises arranging a large amount of active material (104) inside a reaction volume (109) of a reactor (103); heating the active material (104), reducing the active material (104) and generating oxygen in the reaction volume; evacuating the oxygen produced via a first evacuation path (111) of the outlet (106) of the reactor (103); injecting water into the reaction volume (109) of the reactor, oxidating the active material (104) and producing hydrogen; evacuating the hydrogen produced via a second evacuation path (112) of the outlet (106) of the device (100); and separating the evacuated hydrogen and remaining water. The invention further relates to a device for producing hydrogen.

METHOD FOR OBTAINING HYDROGEN BY MEANS OF WATER DISSOCIATION USING THERMOCHEMICAL REACTIONS UNDER (QUASI-)ISOTHERMAL CONDITIONS AND DEVICE FOR CARRYING OUT THE METHOD

Resumen de: EP4775533A1

0001 (EN) The present invention relates to a method for obtaining hydrogen through water molecule dissociation using thermochemical reactions under (quasi-)isothermal conditions, which comprises the following steps: placing active material (103) in the reaction chamber (109) of a reactor (101); reducing the active material (103) by supplying heat; evacuating the oxygen produced through a first outlet (106); injecting water into the reaction chamber (109); oxidizing the active material (103), thereby producing hydrogen; filtering the hydrogen produced through a selective filter (104) during the oxidization of the active material (103); and evacuating the filtered hydrogen through a second outlet (107), thereby obtaining a flow of high-purity hydrogen. The invention also relates to a device for carrying out the method.

ELECTROLYZER WITH MINIMISED SHUNT-CURRENTS AND USE THEREOF

Nº publicación: EP4774433A1 15/07/2026

Solicitante:

STIESDAHL HYDROGEN AS [DK]
Stiesdahl Hydrogen A/S

Resumen de: WO2025051336A1

An electrolyzer stack in which gas passages (16C, 16D) and thin and long shunt-current reducing liquid passages (16A, 16B) are provided inside a gasket that is a combination of a first and a second gasket part (12A, 12B) for ease of assembly.