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WATER-ELECTROLYSER ANODE, PEM WATER ELECTROLYSER, METHOD OF MANUFACTURE AND METHOD OF WATER ELECTROLYSIS

Resumen de: WO2025114716A1

A water-electrolyser anode for a proton exchange membrane (PEM) water electrolyser comprises: a transition metal oxychalcogenide catalyst having the formula ABxOy, wherein A is a transition metal and B is a chalcogenide, and wherein 0 < x < 2 and 0 < y < 2. Also provided are a proton exchange membrane (PEM) water electrolyser, a method of water electrolysis, use of a transition metal oxychalcogenide as a catalyst in an oxygen evolution reaction under acidic conditions, and a method of manufacturing an anode for an electrolyser.

ELECTROLYZER SYSTEM INCLUDING SINGLE MASS FLOW CONTROLLER FOR MULTIPLE HYDROGEN GENERATION MODULES AND METHOD OF OPERATING THEROF

Resumen de: EP4563727A2

A method of operating an electrolyzer system includes providing steam from a steam source through a system steam conduit to module steam conduits located in respective electrolyzer modules, controlling a flow rate of the steam through the system steam conduit using a system mass flow controller located on the system steam conduit, providing portions of the steam to the module steam conduits and providing steam in the module steam conduits to respective stacks of electrolyzer cells located in respective hotboxes in the respective electrolyzer modules, and operating the stacks to generate a hydrogen product stream and an oxygen exhaust stream.

POWER SYSTEM AND FREQUENCY MODULATION CONTROL METHOD THEREFOR

Resumen de: EP4564633A1

Disclosed in the present application are a power system and a frequency modulation control method therefor. The method comprises: first, determining whether the current power grid frequency of a power system falls within a preset allowable frequency deviation range; if not, performing calculation according to the current power grid frequency and a power grid rated frequency to obtain an input current change value of a hydrogen production power generation unit in the power system; on the basis of the size relationship between the input current change value and limit values thereof and the size relationship between the changed input current value and limit values thereof, determining a target input current of the hydrogen production power generation unit; and finally, adjusting an input current of the hydrogen production power generation unit according to the target input current, so as to allow the power grid frequency of the power system to fall within the preset allowable frequency deviation range. Therefore, by means of the relationship between system power consumption and frequency fluctuation, the present application can guide input current setting for the hydrogen production power generation unit on the basis of a measured system frequency to achieve frequency modulation control of the power system, thus solving the problem of frequency fluctuation of power grid systems caused by randomness and fluctuation of renewable energy power generation.

METHOD AND INSTALLATION FOR PRODUCING A SYNTHESIS PRODUCT

Resumen de: EP4563725A1

Es wird ein Verfahren (100) zur Herstellung eines Syntheseprodukts (6) vorgeschlagen, bei dem gasförmiger Wasserstoff (3) durch Elektrolyse (10) von Wasser (1) bereitgestellt und mit einem oder mehreren gasförmigen Reaktionspartnern (4) einer Umsetzung (30) zu dem Syntheseprodukt (6) unterworfen wird, wobei während eines ersten Verfahrensmodus der Wasserstoff (3) und der eine oder die mehreren Reaktionspartner (4) unter Erhalt eines Reaktionsgemischs (5) vermischt werden und das Reaktionsgemisch (5) oder ein Teil hiervon in einer Speichereinheit (20) druckgespeichert wird, und wobei während eines zweiten Verfahrensmodus das in dem ersten Verfahrensmodus druckgespeicherte Reaktionsgemisch (5) oder ein Teil hiervon aus der Speichereinheit (20) entnommen und der Umsetzung (30) zu dem Syntheseprodukt (6) zugeführt wird. Eine entsprechende Anlage wird ebenfalls vorgeschlagen.

PROCESS FOR THE PRODUCTION OF HYDROGEN FROM AMMONIA

Resumen de: EP4563523A1

The invention relates to a process (100) for the production of hydrogen from ammonia comprising the following steps:- providing a water feed stream to a water electrolyzer (101);- performing a water electrolysis (102) of the water feed stream in the electrolyzer, producing an oxygen product stream and an electrolysis hydrogen stream;- providing an ammonia feed stream to an ammonia cracking reactor (103);- providing an oxidant stream (105) and performing a combustion reaction (106) with said oxidant stream, thereby generating heat;- in the ammonia cracking reactor, performing an endothermic reaction of ammonia cracking (104) of the ammonia feed stream with said generated heat;characterized in that the oxidant stream comprises at least a portion of the oxygen product stream produced by the water electrolysis of the water feed stream.

ELECTROLYSIS SYSTEM AND USE THEREOF

Resumen de: AU2023359996A1

The invention relates to an electrolysis system (1) for generating hydrogen and oxygen as product gases, comprising an electrolysis module (3) and a process unit (5), wherein the process unit (5) has a reactant line (7) for supplying process water and a product line (9), each of which is connected to the electrolysis module (3), and the process unit (5) is equipped with a thermally insulating insulation device (11), comprising a thermal insulating material (17), such that a slow cooling of the process water is produced during a standstill operation.

<SUP2/>? <SUB2/>?2?METHOD OF ELECTROLYSING HYDROGEN BROMIDE AFTER HSO <NS1:SUB>4</NS1:SUB>?SYNTHESIS

Resumen de: WO2024023030A2

A method of electrolysing hydrogen bromide comprising the steps i) synthesizing sulfuric acid such that hydrogen bromide is produced, ii) providing an electrolytic cell comprising an anode, a cathode, and a membrane sandwiched between the anode and the cathode, iii) feeding a first composition comprising hydrogen bromide and water to the anode, iv) feeding a second composition comprising hydrogen bromide and water to the cathode, and v) operating the electrolytic cell to produce hydrogen at the cathode.

METHOD OF PRODUCING H2 AND/OR Br2 BY ELECTROLYSING HBr USING FLUOROPOLYMER MEMBRANES

Resumen de: WO2024023030A2

A method of electrolysing hydrogen bromide comprising the steps i) synthesizing sulfuric acid such that hydrogen bromide is produced, ii) providing an electrolytic cell comprising an anode, a cathode, and a membrane sandwiched between the anode and the cathode, iii) feeding a first composition comprising hydrogen bromide and water to the anode, iv) feeding a second composition comprising hydrogen bromide and water to the cathode, and v) operating the electrolytic cell to produce hydrogen at the cathode.

METHOD OF ELECTROLYSING HYDROGEN BROMIDE AFTER BROMINATION

Resumen de: CN119604644A

A process for producing hydrogen and/or bromine by electrolyzing hydrogen bromide in the electrolysis of hydrogen bromide using a fluoropolymer membrane having a glass transition temperature Tg > = 110 DEG C, wherein the hydrogen bromide is derived from the bromination of hydrocarbons.

METHOD OF PRODUCING H2 AND/OR Br2 BY ELECTROLYSING HBr USING FLUOROPOLYMER MEMBRANES

Resumen de: CN119604644A

A process for producing hydrogen and/or bromine by electrolyzing hydrogen bromide in the electrolysis of hydrogen bromide using a fluoropolymer membrane having a glass transition temperature Tg > = 110 DEG C, wherein the hydrogen bromide is derived from the bromination of hydrocarbons.

PROCESS FOR THE PRODUCTION OF METHANOL AND HYDROGEN FROM METHANE USING A LIQUID REACTANT

Resumen de: US2025171388A1

The disclosure provides a process for producing methanol and hydrogen from methane. The process of the disclosure comprises the steps of: •a) providing a gaseous feed stream comprising methane: •b) reacting said gaseous feed stream with at least one halogen reactant •under reaction conditions effective to produce an effluent stream comprising methyl halide, hydrogen halide •optionally poly halogenated alkanes •and optionally unreacted methane: •c) recovering said an effluent stream •d) reacting the recovered effluent stream with water and at least one organic base under reaction conditions effective to produce an aqueous solution of hydrogen halide •and a methanol stream comprising methanol (MeOH) and dimethyl ether (DME) and/or optionally unreacted methane, and, c) decomposing by means of electrolysis said aqueous solution of hydrogen halide under conditions effective to produce a gaseous hydrogen stream and a stream comprising halogen reactant.

PROCESS FOR THE PRODUCTION OF METHANOL AND HYDROGEN FROM METHANE USING A SOLID METAL HYDROXIDE REAGENT

Resumen de: US2025171388A1

The disclosure provides a process for producing methanol and hydrogen from methane. The process of the disclosure comprises the steps of: •a) providing a gaseous feed stream comprising methane: •b) reacting said gaseous feed stream with at least one halogen reactant •under reaction conditions effective to produce an effluent stream comprising methyl halide, hydrogen halide •optionally poly halogenated alkanes •and optionally unreacted methane: •c) recovering said an effluent stream •d) reacting the recovered effluent stream with water and at least one organic base under reaction conditions effective to produce an aqueous solution of hydrogen halide •and a methanol stream comprising methanol (MeOH) and dimethyl ether (DME) and/or optionally unreacted methane, and, c) decomposing by means of electrolysis said aqueous solution of hydrogen halide under conditions effective to produce a gaseous hydrogen stream and a stream comprising halogen reactant.

PROCESS AND PLANT FOR PRODUCING HYDROGEN USING HYDROGEN BROMIDE ELECTROLYSIS

Resumen de: CN119698495A

A process for the production of hydrogen comprising the steps of: a) providing a starting mixture comprising bromine, water and a sulfur-containing compound, b) reacting the starting mixture provided in step a) to produce a reaction mixture effluent comprising sulfuric acid and hydrogen bromide, c) separating the reaction mixture effluent obtained in step b) into one or more hydrogen bromide-enriched compositions and one or more sulfuric acid-enriched compositions, where at least one hydrogen bromide-enriched composition contains up to 1,000 ppm sulfuric acid, where step c) comprises at least two distillation steps, d) separating the reaction mixture effluent obtained in step c) containing up to 1,000 ppm sulfuric acid, at least a portion of the at least one hydrogen bromide-enriched composition comprising at least one hydrogen bromide-enriched composition comprising at least 50,000 ppm sulfuric acid and at least 50,000 ppm sulfuric acid is subjected to electrolysis to obtain hydrogen and a bromine-containing composition wherein the electrolysis cell is operated at an operating temperature of at least 70 DEG C, and e) recycling at least a portion of the bromine-containing composition obtained in step d) back to step a).

Alkaline electrolyser and a method for its operation

Resumen de: DK202330316A1

An alkaline electrolyzer comprising a stack (17) of electrolytic cells (1) is used for producing hydrogen gas (8). Each of the cathode compartments (5) comprises a cathode gas outlet (23A) into a cathode electrolyte return conduit (22A), the downstream end (41) of which is connected to a hydrogen purifier (33) configured for providing purified hydrogen gas by removing oxygen from the gas received from the cathode electrolyte return conduit (22A). A cathode gas recirculation system (38) connects a downstream end of the hydrogen purifier (32,33) to an upstream end (40) of the cathode electrolyte return conduit (22A) for supplying purified hydrogen gas to the cathode electrolyte return conduit (22A). Alternatively, or in addition, each of the anode compartments (6) comprises an anode gas outlet (23B) into an anode electrolyte return conduit (22B), the downstream end (41) of which is connected to an oxygen purifier (33), configured for providing purified oxygen gas by removing hydrogen from the gas coming from the anode electrolyte return conduit (22B). An anode gas recirculation system (38) connects a downstream end (41) of the oxygen purifier (33) to an upstream end (40) of the anode electrolyte return conduit (22B) for supplying purified oxygen gas to the anode electrolyte return conduit (22B). By recirculating purified gases through the electrolyte return conduits, the electrolyzer can operated at part load, for example below 10% of the nominal load.

METHOD FOR PRODUCING HYDROGEN BY DISSOCIATING WATER THROUGH THERMOCHEMICAL REACTIONS AND DEVICE FOR CARRYING OUT SAME

Resumen de: EP4563524A1

The present invention relates to a method and device for producing hydrogen by dissociating the water molecule through thermochemical reactions, using a small amount of active material. The thermochemical reactions are induced by solar energy with a moderate concentration of up to 50 suns, which can be achieved through linear or parabolic concentrators.

CONTAINER AND HYDROGEN PRODUCTION SYSTEM

Resumen de: EP4563494A1

The present invention provides a container and a hydrogen production system. The container includes a bottom base, an upper cover, a first side plate, and a driving device. The first side plate is arranged between the bottom base and the upper cover, and is connected to the bottom base and the upper cover separately; and the driving device is connected to the first side plate and is configured to drive the first side plate to rotate relative to the bottom base, and the first side plate drives the upper cover to move, to switch the container from a closed state to an open state. The container in the present invention can implement hoisting of a device, so that a process in which the device is placed in the container is simplified, and the design efficiency of the hydrogen production system is improved. In addition, it is convenient for personnel to enter the container for device overhaul and maintenance, thereby effectively resolving the problem of inconvenient maintenance on the device after the device is placed in the container.

ELECTROLYSER WITH NICKEL ALLOY 3D PRINTED ELECTRODE

Resumen de: EP4563350A1

An electrolysis device configured to produce hydrogen gas from water, the electrolysis device comprising a container (4), the container accommodating an aqueous alkaline solution (5), a cathodic electrode (1), and an anodic electrode (2), an electrical current being selectively applied between the cathodic electrode and the anodic electrode, wherein the cathodic electrode and possibly the anodic electrode, is made of a nickel alloy, with a nickel base alloyed with at least one element chosen among chromium, molybdenum, cobalt and iron, wherein the cathodic electrode and the anodic electrode are manufactured by an additive manufacturing process, from respective first and second mixed metallic powder compounds, wherein the cathodic and anodic electrodes exhibit an outer surface comprising a plurality of first surface patterns (6,7).

PROCÉDÉ POUR PRODUIRE DE L'HYDROGÈNE PAR DISSOCIATION D'EAU PAR RÉACTIONS THERMOCHIMIQUES ET DISPOSITIF POUR LE RÉALISER

Resumen de: CN119698389A

The invention relates to a method and a device for producing hydrogen by decomposing water molecules by thermochemical reaction using small amounts of active substances. The thermochemical reaction is initiated by solar energy having a medium concentration of up to 50 times sunlight, which may be effected by linear or parabolic concentrators.

CATALYSTS FOR HYDROGEN EVOLUTION REACTION AND METHOD FOR MANUFACTURING THE SAME

Resumen de: KR20250077047A

본 발명은 수소 발생 반응용 촉매 및 이의 제조 방법에 관한 것으로서, 수소 발생 반응에 대한 촉매 활성이 높으며, 내구성이 우수한 수소 발생 반응용 촉매 및 이의 제조 방법을 제공한다.

CELLULES GAZ-LIQUIDE ÉLECTRO-SYNTHÉTIQUES OU ÉLECTRO-ÉNERGÉTIQUES À BASE CAPILLAIRE

Resumen de: US2024044023A1

Zero-gap electrochemical cell architectures that employ molecular-level capillary and/or diffusion and/or osmotic effects to minimize the need for macroscopic external management of the electrochemical cell. Preferably, these effects intrinsically respond to the electrochemical cell conditions, making them self-regulating. In one example is disclosed an electro-synthetic or electro-energy cell, and method of operation, including a reservoir for containing a liquid electrolyte, a first gas diffusion electrode positioned outside of the reservoir, and a second electrode positioned outside of the reservoir. A porous capillary spacer is positioned between the first gas diffusion electrode and the second electrode, the porous capillary spacer having an end that extends into the reservoir. Preferably, the porous capillary spacer is able to fill itself with the liquid electrolyte when the end of the porous capillary spacer is in liquid contact with the liquid electrolyte in the reservoir.

CELLULES ÉLECTRO-SYNTHÉTIQUES OU ÉLECTRO-ÉNERGÉTIQUES À BASE CAPILLAIRE

Resumen de: US2024044023A1

Zero-gap electrochemical cell architectures that employ molecular-level capillary and/or diffusion and/or osmotic effects to minimize the need for macroscopic external management of the electrochemical cell. Preferably, these effects intrinsically respond to the electrochemical cell conditions, making them self-regulating. In one example is disclosed an electro-synthetic or electro-energy cell, and method of operation, including a reservoir for containing a liquid electrolyte, a first gas diffusion electrode positioned outside of the reservoir, and a second electrode positioned outside of the reservoir. A porous capillary spacer is positioned between the first gas diffusion electrode and the second electrode, the porous capillary spacer having an end that extends into the reservoir. Preferably, the porous capillary spacer is able to fill itself with the liquid electrolyte when the end of the porous capillary spacer is in liquid contact with the liquid electrolyte in the reservoir.

PROCÉDÉ DE FONCTIONNEMENT DE CELLULES ÉLECTRO-SYNTHÉTIQUES OU ÉLECTRO-ÉNERGÉTIQUES À BASE CAPILLAIRE

Resumen de: US2024044023A1

Zero-gap electrochemical cell architectures that employ molecular-level capillary and/or diffusion and/or osmotic effects to minimize the need for macroscopic external management of the electrochemical cell. Preferably, these effects intrinsically respond to the electrochemical cell conditions, making them self-regulating. In one example is disclosed an electro-synthetic or electro-energy cell, and method of operation, including a reservoir for containing a liquid electrolyte, a first gas diffusion electrode positioned outside of the reservoir, and a second electrode positioned outside of the reservoir. A porous capillary spacer is positioned between the first gas diffusion electrode and the second electrode, the porous capillary spacer having an end that extends into the reservoir. Preferably, the porous capillary spacer is able to fill itself with the liquid electrolyte when the end of the porous capillary spacer is in liquid contact with the liquid electrolyte in the reservoir.

A method of liquefying ammonia at room temperature and pressure and an ammonia electrolysis device to produce high purity hydrogen using the same

Resumen de: KR20250077260A

본 발명은, 암모니아 기체를 상온 상압에서 액화시키는 방법; 상기 액체 암모니아와 촉매를 이용한 전기분해를 통해 고순도 수소를 생산하는 방법 및 수소 생산 장치에 관한 것이다.

PLANE PARALLEL CONVERGING GAS FLOW ELECTROLYZER, CELL AND USE THEREOF

Resumen de: WO2025110878A1

An electrolyzer for generating hydrogen from water comprising electrodes and an electrically non-conductive separator layer extending in a substantially vertical plane comprising macroscopic through holes, and wherein the electrodes themselves comprise an anode and a cathode, characterized in that the electrodes are each furnished at opposite faces of the separator, and that the electrodes each comprise a plurality fins and wherein each fin of the plurality of fins projects outwardly from the layer for restricting the upward movement of electrode generated bubbles to a bubble stream that is substantially parallel to the vertical plane.

PROCESS FOR THE CHEMICAL RECYCLING OF PLASTIC WASTE CONTAINING POLYETHYLENE OR POLYPROPYLENE

Nº publicación: WO2025109158A1 30/05/2025

Solicitante:

BASF SE [DE]
BASF SE