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水素製造用電解装置

NºPublicación:  JP2026530159A 04/09/2026
Solicitante: 
インドゥストリエ・デ・ノラ・ソチエタ・ペル・アツィオーニ
JP_2026530159_A

Resumen de: WO2025045641A1

The present invention refers to an electrolyser (1) for the production of hydrogen from an alkaline electrolyte. The electrolyser (1) comprises a first header (2) and a second header (3) between which a plurality of elementary cells (4) and a plurality of bipolar plates (5) are stacked. Each bipolar plate (5) separates two adjacent elementary cells. The electrolyser (1) further comprises a plurality of clamping elements (20) that mechanically connect said headers (2, 3). Each of the elementary cells (4) comprises a frame (6) defining a chamber (6A), having an anodic section and a cathodic section, in which an anodic electrode (7) and a cathodic electrode (8) are at least in part housed. Each of the elementary cells (4) further comprise a separator element (10) that separates the anodic section from the cathodic section. According to the invention, each of the frames (6) comprises first through holes (61) and each of the bipolar plates (5) comprises second through holes (51), wherein each of said first through holes (61) of one frame (6) is mutually aligned with a corresponding first through holes (61) of each of the another frames (6) and with one of said second through holes (51) of each bipolar plate (5), wherein each one of said clamping means (20) extends through said through holes (51, 61) mutually aligned.

用于从C1底物生产蛋白质,食品和有用副产品的微生物和人工生态系统

NºPublicación:  CN122686467A 04/09/2026
Solicitante: 
基沃德股份有限公司
CN_122686467_PA

Resumen de: US20250059653A1

0000 Microorganisms and bioprocesses are provided that convert gaseous C1 containing substrates, such as syngas, producer gas, and renewable H<2 >combined with CO<2>, into nutritional and other useful bioproducts.

HYDROGEN GENERATION APPARATUS AND HYDROGEN GENERATION SYSTEM

NºPublicación:  WO2026181447A1 03/09/2026
Solicitante: 
DENSO CORP [JP]
\u682A\u5F0F\u4F1A\u793E\u30C7\u30F3\u30BD\u30FC
WO_2026181447_A1

Resumen de: WO2026181447A1

A hydrogen generation apparatus (1a) comprising a plurality of cell stacks (10) that, through electrolysis of water, generate hydrogen and oxygen as a byproduct, and a control device that controls the cell stacks (10) and controls circulation of hydrogen, wherein: the plurality of cell stacks (10) are divided into at least one firstly-started cell stack (10a) that is started firstly among the plurality of cell stacks (10) and at least one subsequently-started cell stack (10b), (10c) that is started subsequently to the firstly-started cell stack (10a); and the control device (11) is configured to be able to supply, to the subsequently-started cell stack (10b), (10c), hydrogen generated by the firstly-started cell stack (10a) when starting the subsequently-started cell stack (10b), (10c) after the firstly-started cell stack (10a) is started.

SPECTRALLY ENGINEERED SOLAR HYDROGEN PRODUCTION SYSTEM

NºPublicación:  WO2026182942A1 03/09/2026
Solicitante: 
MCCARTHY X ENTPR LLC [US]
MCCARTHY PATRICK A [US]
MCCARTHY X ENTERPRISES, LLC
MCCARTHY, Patrick, A.
WO_2026182942_A1

Resumen de: WO2026182942A1

A solar-driven opto-electrolysis hydrogen production system configured to convert light and water into hydrogen is disclosed. The system includes a solar radiation collection assembly, an optical transmission network, and one or more opto-electrolysis light rods positioned within a reactor containing water. Each light rod includes an inner optical core, a cladding, and a porous layer comprising photocatalytic centers configured to generate hydrogen upon illumination. The inner optical core contains spectral conversion additives that modify incident solar radiation such that emitted wavelengths overlap an absorption band of the photocatalytic centers. In certain embodiments, the porous layer comprises a monolithic porous structure formed around the cladding with pore characteristics selected to permit diffusion of water and removal of evolved hydrogen. A plurality of light rods may be arranged in an array to enable scalable hydrogen production.

SYSTEM FOR GENERATION OF BLUE HYDROGEN THROUGH NATURAL GAS REFORMING, CARBON DIOXIDE CAPTURE, CARBON RESOURCE UTILIZATION, AND REACTION PRODUCT STORAGE, AND METHOD THEREFOR

NºPublicación:  US20260257913A1 03/09/2026
Solicitante: 
LOWCARBON CO LTD [KR]
LOWCARBON CO., LTD.
US_20260257913_A1

Resumen de: US20260257913A1

Proposed is a system for generation of blue hydrogen through natural gas reforming, carbon dioxide capture, carbon resource utilization, and reaction product storage. The system includes a natural gas storage container for storing liquefied natural gas including shale gas, a hydrocarbon reformer in which a gas mixture containing hydrogen and carbon dioxide is produced, a hydrogen filling station in which hydrogen is received and stored, a reactor in which carbon dioxide produced is received and reacted with a basic alkali mixed solution to capture carbon dioxide and in which a reaction product is collected and a carbon dioxide reaction product and a waste solution are separated from the reaction product, a carbon resource storage container storing the carbon dioxide product, and a hydrogen generator in which the carbon dioxide reaction product is used to product hydrogen, and the produced hydrogen is delivered to the hydrogen filling station.

HYDROGEN PRODUTION FROM AMMONIA BY AUTOTHERMAL CRACKING

NºPublicación:  WO2026180519A1 03/09/2026
Solicitante: 
TOPSOE AS [DK]
TOPSOE A/S
WO_2026180519_A1

Resumen de: WO2026180519A1

Process and plant for the production of a product gas containing nitrogen and hydrogen from ammonia, the process comprising the steps of: i) pre-cracking an ammonia feed stream to a pre-cracked process gas containing hydrogen, nitrogen, ammonia by contact with a first ammonia cracking catalyst; ii-1) non-catalytic partial oxidation of the pre-cracked process gas with an oxygen containing gas to a process gas containing nitrogen, water, nitrogen oxides and residual amounts of ammonia; ii-2) cracking of at least a part of the residual amounts of ammonia to hydrogen and nitrogen in the process gas by contact with a second ammonia cracking catalyst and simultaneously reducing the amounts of nitrogen oxides to nitrogen and water by reaction with at least a portion of the hydrogen formed during at least the pre-cracking of the ammonia feed stream, thereby producing said product gas containing nitrogen and hydrogen; iii) withdrawing the product gas. The product gas is purified downstream to a hydrogen product.

HYDROGEN SUPPLY DEVICE

NºPublicación:  WO2026182019A1 03/09/2026
Solicitante: 
TAKEHARA TAKASHI [JP]
\u7AF9\u539F\u3000\u9686
WO_2026182019_A1

Resumen de: WO2026182019A1

The present invention provides an electrolytic hydrogen supply device to be attached to at least one side of goggles. A hydrogen supply device according to the present invention comprises: an electrolytic cell in which a pair of positive and negative electrodes are disposed in the vertical direction and which is capable of storing electrolytic water; and an electrolytic cell receiving section which has a recess that opens from the bottom toward the outside of the side of the goggles, and which is configured to insert and fix the electrolytic cell in the recess from the outside toward the inside to the bottom. The electrolytic cell has a pair of front and rear sealing members in the inward and outward directions for sealing the inner wall of the electrolytic cell receiving section and the outer wall of the electrolytic cell, and has, above the electrolytic cell, a reserve tank space formed in a gap between the outer wall of the electrolytic cell and the inner wall of the electrolytic cell receiving section between the front and rear sealing members, and a first gas film that allows a gas containing hydrogen and water vapor in the electrolytic cell to pass through and be released into the reserve tank space.

Cationic Compounds for Anion Exchange Membranes

NºPublicación:  US20260257990A1 03/09/2026
Solicitante: 
AGFA GEVAERT NV [BE]
Agfa-Gevaert NV
US_20260257990_A1

Resumen de: US20260257990A1

An amidinium-functionalized compound, characterized in that the compound has a structure according to General Formula I or General Formula II wherein ⋅R5 and R9 are any substituent different from hydrogen; ⋅R1 to R4 are independently selected from the group consisting of an alkyl group, an alkenyl group, an alkynyl group, an aralkyl group, an alkaryl group, an aryl group and a heteroaryl group, or any of R1 and R3, R1 and R4, R1 and R2, R3 and R4, R2 and R3, or R2 and R4 represent the necessary atoms to form a five- to eight-membered non-aromatic ring; ⋅R6 to R8 are independently selected from the group consisting of hydrogen, an alkyl group, an alkenyl group, an alkynyl group, an aralkyl group, an alkaryl group, an aryl or heteroaryl group, a halogen group, an ether group, a nitro group, an amine group, or any of R5 and R6, R6 and R7, R7 and R8, or R8 and R9 represent the necessary atoms to form a five- to eight-membered ring; X— is an anion; and wherein ⋅at least one of R1 to R9 comprises a polymerizable group or comprises the necessary atoms to link the amidinium group to a polymer.

WATER ELECTROLYSIS APPARATUS

NºPublicación:  WO2026181397A1 03/09/2026
Solicitante: 
KANADEVIA CORP [JP]
\u30AB\u30CA\u30C7\u30D3\u30A2\u682A\u5F0F\u4F1A\u793E
WO_2026181397_A1

Resumen de: WO2026181397A1

A water electrolysis apparatus (100) comprises: a catalyst (52) that is disposed outside an oxygen gas-liquid separator (4) and reduces hydrogen mixed into oxygen; and an oxygen circulation line (6) in which a blower (61) is disposed and which returns oxygen that has passed through the catalyst (52) to the oxygen gas-liquid separator (4).

SYSTEMATIC CARBON EMISSIONS REDUCTION METHOD FOR WHOLE PROCESS OF PRODUCTION AND CASTING

NºPublicación:  US20260258513A1 03/09/2026
Solicitante: 
JIQING LOW CARBON TECH QINHUANGDAO CO LTD [CN]
JIQING LOW CARBON TECHNOLOGY (QINHUANGDAO) CO., LTD.
US_20260258513_A1

Resumen de: US20260258513A1

0000 The present invention discloses a systematic carbon emissions reduction method for whole process of steel production and casting, comprising the steps of: injecting hydrogen into a blast furnace, wherein the hydrogen is sourced from a nuclear-based hydrogen production system, a water electrolysis hydrogen production system, and a coke oven gas-steam reforming hydrogen production system; wherein electrical energy consumed by the water electrolysis hydrogen production system is sourced from gas-fired power generation, steam residual pressure power generation, solar power generation, wind power generation, and nuclear power generation; wherein combustible gases used for the gas-fired power generation are coke oven gas, blast furnace gas, and converter gas; wherein steam for the steam residual pressure power generation is sourced from a sintering waste heat boiler; wherein steam for the coke oven gas-steam reforming hydrogen production is low-pressure steam exhausted from the residual pressure power generation; producing end products comprising cast steel sections and casting materials including high-carbon ductile cast iron profiles with a carbon content of 2-4% and a silicon content of 2-4%, and high-carbon ductile cast steel profiles with a carbon content of 1-2% and a silicon content of 1-1.9%; and recycling scrap from the end products into a converter or an electric arc furnace for smelting.

METHOD OF RECYCLING SILICON COMPONENTS

NºPublicación:  US20260257925A1 03/09/2026
Solicitante: 
FLAXTEC GMBH [DE]
FLAXTEC GMBH
US_20260257925_A1

Resumen de: US20260257925A1

The present invention relates to a method of physical and energetic utilization of silicon components that are obtained in electrical scrap recycling. In order to create a recycling method which is effective in terms of time, plant technology and energy, it is proposed that a silicon component be dissolved in an alkali under the process pressure (p) and a first suspension temperature in the range from 50° C. to equal to or greater than the boiling point of the alkali at the process pressure p. After the silicon has been dissolved, the resultant suspension is filtered for separation of meta-, di- and oligosilicate, and the second suspension temperature is maintained during the filtration within the temperature range specified from 50 to less than the boiling point of the alkali.

ELECTROLYSIS SYSTEM COMPRISING AN ELECTROLYSIS PLANT AND A RENEWABLE ENERGY PLANT AND METHOD FOR CONTROLLING AN ELECTROLYSIS SYSTEM

NºPublicación:  US20260261119A1 03/09/2026
Solicitante: 
SIEMENS ENERGY GLOBAL GMBH & CO KG [DE]
Siemens Energy Global GmbH & Co. KG
US_20260261119_A1

Resumen de: US20260261119A1

0000 An electrolysis system includes a renewable power generation plant, an electrolysis plant, a transformer station and an AC bus bar. The renewable power generation plant is connected to the public electricity grid at a point of connection via the AC bus bar and includes a power plant controller and a self-controlled converter that is connected to the AC bus bar. The electrolysis plant includes an electrolysis active power controller and a converter arrangement that is connected to the AC bus bar. The electrolysis active power controller is configured for controlling active power of the electrolysis plant at the AC bus bar and the power plant controller is configured for controlling reactive power at the point of connection. A method for operating an electrolysis system is also provided.

SYSTEM AND METHOD FOR SYNTHESIZING AMMONIA USING CHEMICAL COMPRESSOR HAVING A HYDROGEN STORAGE ALLOY EMBEDDED THEREIN

NºPublicación:  WO2026182306A1 03/09/2026
Solicitante: 
KOREA ZINC CO LTD [KR]
\uACE0\uB824\uC544\uC5F0 \uC8FC\uC2DD\uD68C\uC0AC
WO_2026182306_A1

Resumen de: WO2026182306A1

The present invention provides a system for synthesizing ammonia using a chemical compressor having a hydrogen storage alloy embedded therein, and a method for synthesizing ammonia using the ammonia synthesis system. The system for synthesizing ammonia comprises: a water electrolysis stack that generates hydrogen; a chemical compressor that stores and discharges hydrogen supplied from the water electrolysis stack; and an ammonia synthesis unit that receives hydrogen from the chemical compressor and synthesizes ammonia, wherein the chemical compressor includes: a hydrogen storage unit having the hydrogen storage alloy embedded therein; a cooling unit that cools the hydrogen storage unit; a heating unit that heats the hydrogen storage unit; and a control unit that controls operations of the cooling unit and the heating unit, wherein the heating unit includes a plurality of different heating sources independently controllable from one another, and the control unit controls the cooling unit to cool the hydrogen storage alloy of the hydrogen storage unit when hydrogen is stored in the hydrogen storage unit, and controls at least one of the plurality of heating sources of the heating unit to heat the hydrogen storage alloy when hydrogen is discharged from the hydrogen storage unit.

INERT GAS INJECTION FOR ELECTROLYSIS

NºPublicación:  US20260258558A1 03/09/2026
Solicitante: 
VERDAGY INC [US]
Verdagy, Inc.
US_20260258558_A1

Resumen de: US20260258558A1

0000 A method to generate hydrogen gas comprises circulating an electrolyte through an electrolyte circuit including an electrochemical cell comprising an anode and a cathode, wherein hydroxide ions in the electrolyte are oxidized at the anode to produce oxygen gas and water in the electrolyte is reduced at the cathode to produce hydrogen gas. The method further includes introducing an inert gas into the electrolyte circuit to dilute a gas phase of the electrolyte circuit.

ELECTRODE PRODUCTION METHOD AND ELECTRODE THEREOF

NºPublicación:  EP4800782A1 02/09/2026
Solicitante: 
JOLTECH SOLUTIONS S L [ES]
Joltech Solutions, S.L.
EP_4800782_PA

Resumen de: EP4800782A1

The present invention relates to a method for the preparation of a cathode for alkaline water electrolysis of water particularly useful in the reaction of hydrogen evolution comprising nickel, iron and/or cobalt oxide and a noble metal based on the self-combustion of a precursor mixture deposited or coated on the surface of an electrode carrier. The invention also relates to an electrode obtainable according to said method and to its use as cathode in water electrolysis, in particular in alkaline water electrolysis.

HYDROGEN PRODUCTION SYSTEM AND METHOD FOR OPERATING HYDROGEN PRODUCTION SYSTEM

NºPublicación:  EP4800162A2 02/09/2026
Solicitante: 
MITSUBISHI HEAVY IND LTD [JP]
Mitsubishi Heavy Industries, Ltd.
EP_4800162_PA

Resumen de: EP4800162A2

The hydrogen production system comprises a solid oxide electrolysis cell (SOEC) that electrolyzes steam, a steam discharge line through which the steam discharged from the hydrogen electrode of the SOEC passes, a main heat exchanger that generates the steam by heating supply water through heat exchange between the supply water and the steam passing through the steam discharge line, a combustor that combusts a part of hydrogen contained in steam discharged from a hydrogen electrode, a superheater that exchanges heat between the steam generated in the main heat exchanger and the combustion gas generated in the combustor, a gas discharge line through which an exhaust gas discharged from an oxygen electrode of the SOEC passes, a steam bleeding line that allows the steam discharge line and the combustor to communicate with each other, and an exhaust gas bleeding line that allows the gas discharge line and the combustor to communicate with each other.

MEMBRANE-ELECTRODE ASSEMBLY FOR WATER ELECTROLYSIS CELL, AND WATER ELECTROLYSIS CELL COMPRISING SAME

NºPublicación:  EP4800156A1 02/09/2026
Solicitante: 
KOLON INC [KR]
Kolon Industries, Inc.
EP_4800156_PA

Resumen de: EP4800156A1

Provided is a membrane-electrode assembly for a water electrolysis cell, including: a polymer electrolyte membrane having an active area and an inactive area surrounding the active area; a hydrogen generation electrode positioned on a first surface of the active area of the polymer electrolyte membrane; an oxygen generation electrode positioned on a second surface of the active area of the polymer electrolyte membrane; a first subgasket disposed on a first surface of the inactive area of the polymer electrolyte membrane and surrounding the hydrogen generation electrode; and a second subgasket disposed on a second surface of the inactive area of the polymer electrolyte membrane and surrounding the oxygen generation electrode, wherein the first subgasket has a first window accommodating the hydrogen generation electrode, and a first water supply path surrounding the first window and exposing the inactive area of the polymer electrolyte membrane.

PLANT AND METHOD FOR CONVERTING CO2 TO METHANOL

NºPublicación:  EP4800000A1 02/09/2026
Solicitante: 
TOPSOE AS [DK]
Topsoe A/S
EP_4800000_PA

Resumen de: EP4800000A1

The invention relates to an methanol plant comprising: a CO2-rich feed, a hydrogen-rich feed, a boiler feed water stream, a CO2-electrolysis section arranged to electrolyse at least a portion of the CO2-rich feed to output a mixed stream, a heat exchange section arranged to heat exchange at least a portion of the first mixed stream so as to output a cooled mixed stream and a steam stream, a methanol synthesis loop arranged to receive at least a portion of the cooled mixed stream and at least a portion of the hydrogen-rich feed and to output a raw methanol stream, a purge gas stream, and a flash gas stream, and a methanol upgrading section, wherein the steam stream is arranged to provide heat energy for one or more components of the methanol upgrading section. At least a portion of the purge gas stream is arranged to be recycled to the CO2-rich feed, and/or at least a portion of the flash gas stream is arranged to be recycled to at least one of: the mixed stream and the cooled mixed stream. The invention also relates to a method for converting CO2 to methanol.

METHOD OF OPERATING AN ELECTROLYSIS SYSTEM, CONTROL UNIT TO CONTROL AN ELECTROLYSIS SYSTEM, ELECTROLYSIS SYSTEM WITH SUCH A CONTROL UNIT COMPUTER PROGRAM PRODUCT AND A COMPUTER-READABLE STORAGE MEDIUM

NºPublicación:  EP4800157A1 02/09/2026
Solicitante: 
SIEMENS ENERGY GLOBAL GMBH & CO KG [DE]
Siemens Energy Global GmbH & Co. KG
EP_4800157_PA

Resumen de: EP4800157A1

0001 Method of operating an electrolysis system (2) wherein the method comprising the step of: (S100) providing a control signal (S5) to a product valve (18b) on the oxygen-side (V) of the electrolysis system (2) to keep the product valve (18b) open in order to buffer oxygen provided by the electrolysis system (2) in a buffer tank (14b) on the oxygen-side (V) in normal operation of the electrolysis system (2).

A PRESSURIZED ALKALINE ELECTROLYSER STACK

NºPublicación:  EP4800158A1 02/09/2026
Solicitante: 
STARGATE HYDROGEN SOLUTIONS OUE [EE]
Stargate Hydrogen Solutions O\u00DC
EP_4800158_PA

Resumen de: EP4800158A1

The various embodiments of the present invention disclose a pressurized alkaline electrolyser stack, comprising: a stack core (100a) comprising a plurality of electrolysis cells (200), wherein each electrolysis cell (200) comprises an anode chamber comprising an anode, a cathode chamber comprising a cathode, a diaphragm (206) separating the anode chamber and the cathode chamber, at least one cell frame (201) and at least one gasket (202). The stack core (100a) is configured to have a first stack core length L1 and a first gasket stress σ1 at a first design temperature T1 and a second stack core length L2 and a second gasket stress σ2 at a second design temperature T2. The first design temperature T1 is at least 80 degrees Celsius and the second design temperature T2 is less than 30 degrees Celsius. A stack core length difference dL = L1-L2 is between 0 to 20 millimeters, and a gasket stress difference dσ =σ12 is between 0 to 20 MPa.

IMPROVED ELECTROCHEMICAL DEVICE

NºPublicación:  EP4798762A1 02/09/2026
Solicitante: 
HYTER S R L [IT]
Hyter S.r.l.
WO_2025088418_PA

Resumen de: WO2025088418A1

Electrochemical device (1), preferably of the electrolyser type for hydrogen production, characterised by comprising: - at least one support frame (2), with a substantially laminar development, which is provided with at least one seat (3) for an electrochemical module (10), said support frame (2) comprising a first face (12') and a second face (12") which are opposite to each other, at least one electrochemical module (10) which is mounted in said at least one seat (3) and which comprises a separation membrane interposed between two electrodes, respectively between an anode and a cathode, at least one bipolar plate (20) for applying/transferring electrical energy to the electrodes of said at least one electrochemical module (10), said bipolar plate (20) comprising a first surface (21') and a second surface (21") which are opposite to each other, said bipolar plate (20) being superimposed on said support frame (2) and being configured so that the first surface (21') of said bipolar plate (20) rests, at least in part, on a first face (12') of said support frame (2).

FUEL CRACKER FOR PRODUCING A FUEL WITH STABLE COMBUSTION PROPERTIES FROM AMMONIA

NºPublicación:  EP4798533A1 02/09/2026
Solicitante: 
AIR LIQUIDE [FR]
L'Air Liquide, Soci\u00E9t\u00E9 Anonyme pour l'Etude et l'Exploitation des Proc\u00E9d\u00E9s Georges Claude
EP_4545476_PA

Resumen de: EP4545476A1

Process (2) for the production of an enhanced fuel gas (4) containing at least hydrogen gas from a fuel stream, in particular from an ammonia fuel stream (6). Said process comprises the following steps:- providing the fuel stream (6) (S100);- providing a condensable medium (8), preferably water steam (8), to a cracker unit (10);- at least one step of performing an endothermic cracking reaction of the fuel stream (6) in the cracker unit comprising at least one catalyst suitable for cracking said fuelstream (6), so as to produce an at least partially cracked fuel stream as said enhanced fuel gas (4) (S300); and- condensing at least partially said condensable medium (8) to provide said heat for the endothermic cracking reaction of the fuel stream (6).

SOLID OXIDE ELECTROLYSIS CELL AND USE OF SAME

NºPublicación:  EP4800161A1 02/09/2026
Solicitante: 
NITERRA CO LTD [JP]
Niterra Co., Ltd.
EP_4800161_PA

Resumen de: EP4800161A1

Provided is a technique for suppressing occurrence of cracking in a solid electrolyte layer. A solid oxide electrolysis cell includes an air electrode containing a complex oxide having a perovskite structure, a fuel electrode, and a solid electrolyte layer disposed between the air electrode and the fuel electrode. In an interface region of the fuel electrode, which region extends 5 µm from the interface between the fuel electrode and the solid electrolyte layer, the Al content is 1 ppm or greater and 100 ppm or less.

METHOD OF OPERATING A SOLID OXIDE ELECTROLYSIS CELL STACK AND SYSTEM FOR CARRYING OUT THE METHOD

NºPublicación:  EP4798764A1 02/09/2026
Solicitante: 
TOPSOE AS [DK]
Topsoe A/S
WO_2025087866_PA

Resumen de: WO2025087866A1

The invention relates to a method of operating a solid oxide electrolysis cell (SOEC) stack for producing hydrogen, and a system for carrying out the method, said SOEC stack comprising at least one solid oxide electrolysis cell (SOEC), said at least one SOEC comprising an electrolyte layer interposed between a fuel-side and an oxy-side, the method comprising transient operation, in which the transient operation comprises: - operating the SOEC stack under open-circuit voltage (OCV); - providing a feed gas comprising ammonia; - supplying at least a portion of said feed gas comprising ammonia to a guard bed reactor, said guard bed reactor comprising a catalyst active in the cracking of ammonia to nitrogen and hydrogen; and withdrawing from said guard bed reactor a forming gas comprising nitrogen and hydrogen; - supplying at least a portion of the forming gas comprising nitrogen and hydrogen to the fuel-side of the at least one of the solid oxide electrolysis cells (SOECs) of the SOEC stack; and withdrawing from said at least one of the SOECs of the SOEC stack, a first fuel-side exit gas.

SOLID OXIDE CELL SYSTEM AND GUARD BED REACTOR FOR SILICON REMOVAL THEREFORE

Nº publicación: EP4798763A1 02/09/2026

Solicitante:

TOPSOE AS [DK]
Topsoe A/S

WO_2025087865_PA

Resumen de: WO2025087865A1

The present invention relates to a guard bed reactor for silicon removal, a solid oxide electrode system for producing hydrogen comprising a guard bed reactor for silicon removal, a method of operating the system to produce hydrogen and a use of the guard bed reactor for silicon removal for depleting a stream of steam from volatile silica species.

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