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Publicaciones de solicitudes de patente de los últimos 60 días/Applications published in the last 60 days
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METHOD FOR TREATING RAW WATER FOR USE AS REACTANT WATER IN AN ELECTROLYSIS PROCESS, AND WATER TREATMENT SYSTEM FOR CARRYING OUT THE METHOD

Publication No.:  WO2026180190A1 03/09/2026
Applicant: 
SIEMENS ENERGY GLOBAL GMBH & CO KG [DE]
SIEMENS ENERGY GLOBAL GMBH & CO. KG
WO_2026180190_A1

Absstract of: WO2026180190A1

The invention relates to a method for treating raw water (1) for use as reactant water in an electrolysis process, in which method salt-laden raw water (1) is provided and thermal desalination of the raw water (1) is carried out, wherein heat (QIN) is supplied to the raw water (1) and the raw water is evaporated, wherein salt-free water (H2O) is drawn off, which is provided as reactant water (9) and supplied to an electrolysis process in which hydrogen (H2) is generated as product gas, wherein the generated hydrogen (H2) is loaded by subjecting the hydrogen (H2) to an exothermic loading process from which heat (QOUT) is released, wherein released heat (QOUT) is transferred and supplied to the raw water (1) as heating heat (QIN) and used for evaporation. The invention further relates to a water treatment system (11) for carrying out the method.

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

Publication No.:  WO2026182306A1 03/09/2026
Applicant: 
KOREA ZINC CO LTD [KR]
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WO_2026182306_A1

Absstract of: 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.

Thermal and water management systems for reversible fuel cell hybrid power packs

Publication No.:  KR20260132701A 03/09/2026
Applicant: 
AGENCY FOR DEFENSE DEV [KR]
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KR_20260132701_PA

Absstract of: KR20260132701A

본 발명의 목적은, 수전해 스택을 통한 물 전기분해 및 연료(수소, 산소) 생산, 연료전지 스택을 통한 전력생산 및 물 생성의 과정을 닫힌 계 내에서 지속/반복적으로 동작시키는 방식의 가역연료전지 시스템을 대상으로 하는 가역연료전지 하이브리드 파워팩의 열관리 및 물관리 시스템 및 그 방법을 제공하는 것이다. 상기 목적을 달성하기 위해, 본 발명의 실시예에 따른 가역연료전지 하이브리드 파워팩의 열관리 및 물관리 시스템은, 연료전지 및 수전해 스택을 구비하는 가역연료전지 하이브리드 파워팩 시스템에 있어서, 상기 연료전지 스택 및 수전해 스택의 전극별로 생성 또는 순환되는 물을 구분하여 복수개의 물탱크에 저장하고, 상기 물의 흐름을 제어하여 관리하는 물관리 시스템; 상기 물관리 시스템에서 발생하는 열을 냉각하는 메인 냉각장치; 및 상기 메인 냉각장치와 연결되어 절연냉각수를 이용하여 시스템을 열관리 하는 열관리 시스템을 포함하는 것을 특징으로 한다.

HYDROGEN GENERATION APPARATUS AND HYDROGEN GENERATION SYSTEM

Publication No.:  WO2026181447A1 03/09/2026
Applicant: 
DENSO CORP [JP]
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WO_2026181447_A1

Absstract of: 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.

HYDROGEN PRODUTION FROM AMMONIA BY AUTOTHERMAL CRACKING

Publication No.:  WO2026180519A1 03/09/2026
Applicant: 
TOPSOE AS [DK]
TOPSOE A/S
WO_2026180519_A1

Absstract of: 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

Publication No.:  WO2026182019A1 03/09/2026
Applicant: 
TAKEHARA TAKASHI [JP]
\u7AF9\u539F\u3000\u9686
WO_2026182019_A1

Absstract of: 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.

SPECTRALLY ENGINEERED SOLAR HYDROGEN PRODUCTION SYSTEM

Publication No.:  WO2026182942A1 03/09/2026
Applicant: 
MCCARTHY X ENTPR LLC [US]
MCCARTHY PATRICK A [US]
MCCARTHY X ENTERPRISES, LLC
MCCARTHY, Patrick, A.
WO_2026182942_A1

Absstract of: 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.

INERT GAS INJECTION FOR ELECTROLYSIS

Publication No.:  US20260258558A1 03/09/2026
Applicant: 
VERDAGY INC [US]
Verdagy, Inc.
US_20260258558_A1

Absstract of: 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.

Hydrogen Production Facility Based on High-Temperature Gas and Hydrogen Production method using the same

Publication No.:  KR20260133045A 03/09/2026
Applicant: 
한국원자력연구원

Absstract of: KR20260133045A

본 발명의 일측면에 따르면, 헬륨과 공급수가 열교환되어 증기가 생성되거나 헬륨과 공기가 열교환되어 가열공기가 생성되도록 내부로 공기, 헬륨 및 공급수가 유입되는 열교환장치; 상기 열교환장치로 유입되는 헬륨을 가열하기 위한 헬륨가열장치; 수소가 생성되도록 상기 열교환장치에서 생성된 증기가 유입되는 제1 캐소드와 가열공기가 유입되는 제1 애노드를 포함하는 고체산화물 수전해 전지스택을 포함하는 수소생성부; 전기가 생성되도록 상기 열교환장치에서 생성된 증기가 유입되는 제2 애노드와 가열공기가 유입되는 제2 캐소드를 포함하는 고체산화물 연료 전지스택을 포함하는 전기생성부; 상기 열교환장치, 상기 헬륨가열장치, 상기 수소생성부 및 상기 전기생성부의 사이에서 헬륨, 공급수, 가열공기, 증기 및 수소가 유동되도록 헬륨, 공급수, 증기, 가열공기 및 수소가 유동되는 통로를 제공하는 플로우채널; 상기 플로우채널에서 가열공기, 헬륨, 공급수, 증기 및 수소의 유동을 조절하기 위해 선택적으로 개폐되는 복수 개의 밸브; 및 복수 개의 제어모드에 기초하여 상기 복수 개의 밸브를 제어하는 제어기를 포함하고, 상기 플로우채널은, 상기 열교환장치와 헬륨가열장치에 연결되고, 외부로부터 공급된 히�

WATER ELECTROLYSIS APPARATUS

Publication No.:  WO2026181397A1 03/09/2026
Applicant: 
KANADEVIA CORP [JP]
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WO_2026181397_A1

Absstract of: 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).

ELECTRODE MEMBER AND METHOD FOR MANUFACTURING ELECTRODE MEMBER

Publication No.:  WO2026181877A1 03/09/2026
Applicant: 
DEXERIALS CORP [JP]
\u30C7\u30AF\u30BB\u30EA\u30A2\u30EB\u30BA\u682A\u5F0F\u4F1A\u793E
WO_2026181877_A1

Absstract of: WO2026181877A1

The present invention provides an electrode member having good durability. An electrode member 1 is formed by laminating a metal substrate 2, a conductive oxide layer 3 having a film thickness of 1 nm or more and less than 200 nm, and a metal layer 4 containing at least 50 wt% of iron in this order. A method for manufacturing an electrode member 1 includes: a step A of forming a conductive oxide layer 3 having a film thickness of 1 nm or more and less than 200 nm on the metal member 2; and a step B of forming a metal layer 4 containing at least 50 wt% of iron on the conductive oxide layer 3. The method forms the electrode member 1 in which the metal substrate 2, and the conductive oxide layer 3, and the metal layer 4 are laminated in this order.

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

Publication No.:  US20260258513A1 03/09/2026
Applicant: 
JIQING LOW CARBON TECH QINHUANGDAO CO LTD [CN]
JIQING LOW CARBON TECHNOLOGY (QINHUANGDAO) CO., LTD.
US_20260258513_A1

Absstract of: 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.

MARINE PLATFORM FOR PRODUCING, STORING, AND TRANSFERRING MARINE GREEN HYDROGEN

Publication No.:  EP4799916A2 02/09/2026
Applicant: 
KOREA INST OF OCEAN SCIENCE AND TECHNOLOGY [KR]
Korea Institute of Ocean Science and Technology
EP_4799916_PA

Absstract of: EP4799916A2

The present invention relates to an apparatus and method for producing, storing, and transferring hydrogen. According to the present invention, in order to address the problems of conventional systems and methods for producing, storing, and transferring marine green hydrogen, which are configured with a fixed structure in a small-scale offshore wind power generator on a coast or in a shallow sea area with a shallow depth of water, and thus, have low efficiency due to the difficulty in mass production of hydrogen, and a large storage space is occupied when the produced hydrogen is converted into a compressed gas form, and when the produced hydrogen is converted into ammonia, additional energy is required to extract the hydrogen again and there is a risk of environmental pollution and casualty in the event of an outflow accident, provided is a marine platform for producing, storing, and transferring marine green hydrogen, which is configured such that marine green hydrogen is produced through a floating marine structure configured to produce marine green hydrogen using electricity produced using renewable energy from the ocean, and simultaneously, the produced marine green hydrogen is stored, transferred, and offloaded through a single offshore platform (FPSO), thereby being possible to easily construct a large-scale production facility capable of producing, storing, and transferring marine green hydrogen without greenhouse gas emission on the basis of eco-friendly energy.

Hydrogen Production Facility and Control System Based on High-Temperature Gas

Publication No.:  KR20260132167A 02/09/2026
Applicant: 
한국원자력연구원
KR_20260132167_PA

Absstract of: KR20260132167A

본 발명의 일측면에 따르면, 헬륨과 공급수가 열교환되어 증기가 생성되도록 내부로 헬륨과 공급수가 유입되는 열교환장치; 상기 열교환장치로 유입되는 헬륨을 가열하기 위한 헬륨가열장치; 수소가 생성되도록 상기 열교환장치에서 생성된 증기가 유입되는 제1 캐소드와 제1 애노드를 포함하는 고체산화물 수전해 전지스택를 포함하는 수소생성부; 전기가 생성되도록 상기 열교환장치에서 생성된 증기가 유입되는 제2 애노드와 제2 캐소드를 포함하는 고체산화물 연료 전지스택를 포함하는 전기생성부; 상기 열교환장치, 상기 헬륨가열장치, 상기 수소생성부 및 상기 전기생성부에 연결되어 헬륨, 공급수, 증기 및 수소가 유동되는 통로를 제공하는 플로우채널; 상기 플로우채널에서 헬륨, 공급수, 증기 및 수소의 유동을 조절하기 위해 선택적으로 개폐되는 복수 개의 밸브; 상기 제1 캐소드 및 상기 제2 애노드의 압력을 감지하기 위한 복수 개의 압력센서; 및 복수 개의 압력센서에서 감지된 압력에 기초하여 상기 복수 개의 밸브를 제어하는 제어기를 포함하고, 상기 제어기는 상기 제1 캐소드의 압력이 미리 설정된 제1 캐소드기준압력 이상일 경우, 상기 제1 캐소드로 유입되는 증기가 감소되도록 복수 개의 밸브를 제어하고, �

SYSTEMS AND METHODS FOR TANDEM HYDROGEN PRODUCTION AND CARBON DIOXIDE CAPTURE

Publication No.:  EP4798759A1 02/09/2026
Applicant: 
OHIO STATE INNOVATION FOUNDATION [US]
Ohio State Innovation Foundation
WO_2025090834_PA

Absstract of: WO2025090834A1

Disclosed herein are systems and methods for tandem hydrogen (H2) production and carbon dioxide (CO2) capture. For example, described herein are methods comprising tandem H2 production and CO2 capture and conversion to a carbonate mineral. In some examples, the method is an electrochemical method. In some examples, the method comprises dissolving CO2 in water and applying an electrochemical potential sufficient to drive the H2 evolution reaction, thereby producing H2 and CO3 2-. In some examples, the methods further comprise contacting the CO3 2- with a cation to thereby form an insoluble carbonate compound.

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

Publication No.:  EP4798763A1 02/09/2026
Applicant: 
TOPSOE AS [DK]
Topsoe A/S
WO_2025087865_PA

Absstract of: 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.

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

Publication No.:  EP4798764A1 02/09/2026
Applicant: 
TOPSOE AS [DK]
Topsoe A/S
WO_2025087866_PA

Absstract of: 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 ELECTROLYSIS CELL AND USE OF SAME

Publication No.:  EP4800161A1 02/09/2026
Applicant: 
NITERRA CO LTD [JP]
Niterra Co., Ltd.
EP_4800161_PA

Absstract of: 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.

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

Publication No.:  EP4798533A1 02/09/2026
Applicant: 
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

Absstract of: 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).

IMPROVED ELECTROCHEMICAL DEVICE

Publication No.:  EP4798762A1 02/09/2026
Applicant: 
HYTER S R L [IT]
Hyter S.r.l.
WO_2025088418_PA

Absstract of: 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).

HYDROGEN PRODUCTION SYSTEM AND METHOD FOR OPERATING HYDROGEN PRODUCTION SYSTEM

Publication No.:  EP4800162A2 02/09/2026
Applicant: 
MITSUBISHI HEAVY IND LTD [JP]
Mitsubishi Heavy Industries, Ltd.
EP_4800162_PA

Absstract of: 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.

HYDROGEN PRODUCTION SYSTEM, HYDROGEN PRODUCTION METHOD, AND PROGRAM

Publication No.:  EP4800868A1 02/09/2026
Applicant: 
DENSO CORP [JP]
DENSO CORPORATION
EP_4800868_PA

Absstract of: EP4800868A1

0001 A hydrogen production system 1 of the present disclosure includes an electrolytic device 2, a plurality of electrical power conversion devices 3 that convert three-phase AC power to DC power and supply the DC power to the electrolytic device 2, and a control device 4 that controls the electrical power conversion devices. The electrolytic device 2 is connected with the plurality of electrical power conversion devices 3 connected in parallel with each other. The control device 4 is configured to correct, when electrical power supply from some of the plurality of electrical power conversion devices 3 to the electrolytic device 2 is stopped, at least one of voltage and current of the electrical power conversion device 3 that is continuing electrical power supply to the electrolytic device 2 so that a later hydrogen production amount of the electrolytic device 2 approaches a predetermined target amount.

HYDROGEN PRODUCTION SYSTEM, HYDROGEN PRODUCTION METHOD, AND PROGRAM

Publication No.:  EP4800867A1 02/09/2026
Applicant: 
DENSO CORP [JP]
DENSO CORPORATION
EP_4800867_PA

Absstract of: EP4800867A1

0001 A hydrogen production system (1) of the present disclosure includes a plurality of electrolyzers (2) which produce hydrogen by electrolyzing a raw material, a plurality of power converters (3) which convert three-phase AC power into DC power and supply the DC power to the plurality of electrolyzers, and a control device (4) which controls the plurality of power converters. Each electrolyzer is connected to a different one of the power converters. The control device is configured to individually control a current or a voltage supplied from the plurality of power converters to each electrolyzer by individually controlling the plurality of power converters. The control device is configured to control the current or the voltage supplied from the power converter to a measured electrolyzer (2S) based on a detection value detected by at least one detection unit of an inlet gas state detection unit (141), an outlet gas state detection unit (142), and a power supply physical quantity detection unit (143).

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

Publication No.:  EP4800156A1 02/09/2026
Applicant: 
KOLON INC [KR]
Kolon Industries, Inc.
EP_4800156_PA

Absstract of: 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

Nº publicación: EP4800000A1 02/09/2026

Applicant:

TOPSOE AS [DK]
Topsoe A/S

EP_4800000_PA

Absstract of: 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.

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