Resumen de: WO2024231569A1
The present invention discloses an electrolyser cell frame assembly comprising a cell frame with an inner peripheral edge and an outer peripheral edge; a gasket with an inner peripheral edge and an outer peripheral edge; and a cell element with a peripheral edge compressed between the gasket and the cell frame. The gasket exhibits compressible characteristics whereas the cell frame exhibits rigid characteristics. The outer peripheral edge of the gasket extends outwards over the peripheral edge of the cell element in the direction of the outer peripheral edge of the cell frame such that the gasket overlaps a predefined part of the cell frame.
Resumen de: WO2024162842A1
A method of generating hydrogen and oxygen from a liquid feed stream through an integrated system of forward osmosis and electrolysis, wherein the method comprising the steps of feeding water into an electrolyte solution by means of forward osmosis and applying a voltage across the electrolyte solution to generate hydrogen and oxygen, characterized in that the electrolyte solution comprising an electrolyte, an ionic liquid and a solvent, wherein the electrolyte is used in an amount ranging between 1 wt% to 10 wt% of the electrolyte solution, wherein the ionic liquid is used in an amount ranging between 1 wt% to 5 wt% of the electrolyte solution and wherein the solvent is used in an amount ranging between 75 wt% to 99 wt% of the electrolyte solution.
Resumen de: AU2024276790A1
The specification describes a process for preparing an oxygen evolution reaction catalyst, comprising the steps of: (i) combining iridium powder and a peroxide salt to produce a powder mixture; (ii) carrying out thermal treatment on the powder mixture; (iii) dissolving the product from (ii) in water to produce a solution; (iv) reducing the pH of the solution from (iii) to affect a precipitation and form a solid and a supernatant; (v) separating the solid from the supernatant; and (vi) drying the solid. An oxygen evolution catalyst obtainable by the process is also described.
Resumen de: CN118461035A
The invention provides an electrode catalyst and a preparation method and application thereof, the electrode catalyst comprises a nanosheet catalyst structure, a plurality of holes are formed in the surface of the nanosheet catalyst structure, and the size of the holes is smaller than 80 nm. According to the electrode catalyst and the preparation method and application thereof, electrode catalysts of different structures are obtained, the specific surface area of the electrode catalyst is increased, and active sites are increased, so that the catalytic efficiency is improved, and the production cost is reduced.
Resumen de: WO2024184586A1
The invention relates to a method for producing hydrogen. The method comprises providing water and a gaseous substance, the gaseous substance comprises hydrogen atoms and carbon atoms, producing a mixture comprising the water and bubbles comprising the gaseous substance, decreasing diameter of the bubbles comprising the gaseous substance, and producing gaseous hydrogen by decomposing the gaseous substance in the bubbles having the decreased diameter. The invention further relates to apparatus for producing hydrogen gas.
Resumen de: WO2025242614A1
A plant for producing synthetic fuels, in particular aviation turbine fuel (kerosene), crude gasoline and/or diesel, comprises: • a) a synthesis gas production device for production of a crude synthesis gas comprising carbon monoxide, hydrogen and carbon dioxide from i) carbon dioxide, ii) water, iii) methane and/or hydrogen and iv) oxygen, wherein the synthesis gas production device comprises at least one autothermal reformer, wherein the at least one autothermal reformer comprises at least one feed conduit i) for carbon dioxide, ii) for water, iii) for methane and/or for hydrogen and iv) for oxygen, and a discharge conduit for crude synthesis gas, • b) a separation device for separation of carbon dioxide from the crude synthesis gas produced in the synthesis gas production device, having a discharge conduit for carbon dioxide and a discharge conduit for synthesis gas, • c) a Fischer-Tropsch device for production of hydrocarbons by a Fischer-Tropsch process from the synthesis gas from which carbon dioxide has been separated in the separation device, • d) a refining device for refining the hydrocarbons produced in the Fischer-Tropsch device to give the synthetic fuels and e1) an electrolysis device for separating water into hydrogen and oxygen and/or e2) a methane-steam reformer which is electrically heated by induction and comprises at least one feed conduit for methane, for water and for hydrogen, and a discharge conduit for crude synthesis gas, and the plant furthe
Resumen de: AU2024291248A1
The present invention refers to an electrolyzer (1) for the production of hydrogen from an alkaline electrolyte. The electrolyzer (1) comprises a first header (11) and a second header (12) between which a plurality of elementary cells (20) and a plurality of bipolar plates (5, 5', 5'') are stacked. Each bipolar plate (5) separates two adjacent elementary cells. According to the invention, each of said bipolar plates (5, 5',5'') comprises two plate-form components (5A, 5B) coupled together and configured so as to define one or more inner cavities (66) for the circulation of a cooling fluid. Furthermore, each bipolar plate (5, 5', 5'') comprises an inlet section (SI) and an outlet section (SV) respectively for the inlet and outlet of said cooling fluid in said one or more inner cavities (66).
Resumen de: WO2025245447A1
Disclosed is a method of dehydrogenation of hydrogen-containing compounds in a reactor comprising a catalytic chamber, an electrochemical chamber, and an H-conductive membrane, comprising dehydrogenating the hydrogen-containing compound to produce hydrogen atom equivalents and oxidizing the hydrogen atom equivalents on the anodic H-conductive membrane. The reaction between the protons and a molten electrolyte in the electrochemical chamber generates water, which is decomposed on a counter electrode producing hydrogen. The hydrogen can be used in hydrogenation reactions. Also disclosed is a method of reducing a substrate, for example, a substrate dissolved or dispersed in the molten electrolyte.
Resumen de: WO2025245064A1
An example carbon dioxide sensor (100) can include a channel (110) capable of containing water having carbon dioxide dissolved therein. A pair of electrodes (130, 132) can be positioned to contact the water. A voltage source (140) can be connected to the pair of electrodes and operable to supply sufficient voltage to convert a portion of the water to hydrogen gas and oxygen gas by electrolysis to form at least one gas bubble (150, 152) in the channel. A bubble size sensor (160) can be operable to measure a size change over time of the at least one gas bubble in the channel.
Resumen de: WO2025241834A1
The present invention relates to a method and system for hydrogen production from organic wastewater with co-production of freshwater and a complex carbon source. The system of the present invention comprises an organic-wastewater guiding-out unit, an oxidation treatment unit, and a water electrolysis and low-temperature distillation coupled integrated system, wherein the water electrolysis and low-temperature distillation coupled integrated system comprises an alkaline electrolytic cell unit, an oxygen separation and cooling unit, a hydrogen separation and cooling unit, a hydrogen purification and cooling unit, an alkaline-solution filtration and circulation unit and a wastewater-to-freshwater unit; the organic-wastewater guiding-out unit is used for supplying wastewater into the oxidation treatment unit; the oxidation treatment unit treats the wastewater into wastewater containing carboxylic acid or carboxylate, and the oxidation treatment unit is connected to the wastewater-to-freshwater unit; the wastewater-to-freshwater unit is used for producing freshwater and a complex carbon source; and an output end of the wastewater-to-freshwater unit is connected to the alkaline electrolytic cell unit, and freshwater in the alkaline electrolytic cell unit is decomposed into hydrogen and oxygen under the action of a direct current. The present invention involves a short technological process, occupies a small area and achieves a high product value and resource utilization of wastewa
Resumen de: WO2025241835A1
The present invention relates to a method and system for hydrogen production from chemical wastewater with co-production of freshwater. The system of the present invention comprises a wastewater guiding-out unit and a water electrolysis and low-temperature distillation coupled integrated system, wherein the water electrolysis and low-temperature distillation coupled integrated system comprises an alkaline electrolytic cell unit, an oxygen separation and cooling unit, a hydrogen separation and cooling unit, a hydrogen purification and cooling unit, an alkaline-solution filtration and circulation unit and a wastewater-to-freshwater unit; the wastewater guiding-out unit is used for supplying wastewater into the water electrolysis and low-temperature distillation coupled integrated system; the wastewater-to-freshwater unit is used for heating the wastewater into steam, removing purities from the steam and then condensing the steam to produce freshwater; and an output end of the wastewater-to-freshwater unit is connected to the alkaline electrolytic cell unit, and freshwater in the alkaline electrolytic cell unit is decomposed into hydrogen and oxygen under the action of a direct current. The present invention involves a short technological process and occupies a small area, the quality of produced freshwater is much better than that of conventional wastewater that meets discharge standards, and the resource utilization of chemical wastewater is achieved.
Resumen de: WO2025241418A1
A system and method for hydrogen production by means of decomposition using array plasma. The system comprises a reactor group, a high-voltage power supply (3), a waste-liquid recovery device (8), a raw-material reservoir group, a filter (13), a membrane separator (14), a waste-gas recovery device (15) and a hydrogen collector (16), wherein reactors (1, 2) are each internally provided with an array electrode and a ring electrode (20), and the array electrode comprises a plurality of high-voltage electrodes (17) arranged in an array; each high-voltage electrode (17) comprises an insulating sleeve (27) and a metal pin electrode (28); the insulating sleeve (27) is sleeved outside the metal pin electrode (28); and the upper end of the insulating sleeve (27) is provided with a porous medium (29) having catalytic properties. The array electrodes are arranged in the reactors (1, 2), and the porous mediums (29) having catalytic properties are coupled to the tips of the array electrodes, thereby achieving a synergistic enhancement effect of catalysts and plasma, and improving hydrogen selectivity and the energy utilization efficiency of the plasma; and a liquid phase discharges by means of a strong electric field to generate plasma, thereby prompting a liquid fuel to rapidly decompose so as to produce hydrogen.
Resumen de: US2025361629A1
A laminate for a water electrolysis device includes a polymer electrolyte membrane and an electrode catalyst layer provided on one surface of the polymer electrolyte membrane. The electrode catalyst layer includes a catalyst, a polymer electrolyte, and a fibrous material. A membrane electrode assembly for a water electrolysis device includes the laminate for a water electrolysis device and a second electrode catalyst layer, and includes an electrode catalyst layer, a polymer electrolyte membrane, and a second electrode catalyst layer in this order.
Resumen de: US2025361621A1
A method of coating a component of an electrolyser is provided. The method comprises applying an acidic solution of platinum cations to at least a portion of the component and reducing the applied platinum cations with a reducing agent to form a layer of platinum metal on the component.
Resumen de: US2025361626A1
An electrolysis device includes a water electrolysis stack configured to electrolyze water, a gas-liquid separator configured to separate hydrogen gas from water discharged from the water electrolysis stack, and a hydrogen compression stack configured to compress the hydrogen gas separated by the gas-liquid separator. The gas-liquid separator includes a storage tank configured to store water, and a maximum storage water level that is a maximum value of a water level that can be allowed in the storage tank is predetermined, and the hydrogen compression stack is located above the maximum storage water level.
Resumen de: US2025361637A1
A methane synthesis system according to the present disclosure includes: a co-electrolysis part that obtains hydrogen and carbon monoxide by electrolyzing water and carbon dioxide, a methanation reaction part that obtains a product gas containing methane by a methanation reaction that uses the hydrogen and the carbon monoxide, and a cooler having a distribution channel in which a refrigerant capable of phase transition, is distributed. The cooler cools the methanation reaction part using heat of vaporization from vaporizing at least a portion of the refrigerant on an inside of the distribution channel.
Resumen de: US2025361634A1
A pore-filling membrane having excellent chemical durability and mechanical strength, a fuel cell including the pore-filling membrane and having excellent durability, and an electrolysis device are provided. The pore-filling membrane has a porous base material and a polyarylene polymer, in which the polyarylene polymer is filled into pores of the porous base material.
Resumen de: US2025361631A1
A method of generating hydrogen using an electrocatalyst including NiMoxCo2-xO4 nanoparticles deposited on a nickel foam substrate, where x>0 and x≤0.06. A first portion of the NiMoxCo2-xO4 nanoparticles have a nano-needle morphology, where the nano-needles assemble to form a sphere in which the nano-needles project horizontally from the sphere, and the sphere has an average diameter of 1-5 micrometers (μm).
Resumen de: US2025361630A1
An electrolyzer system includes a cathode comprising a cathode catalyst: an anode comprising an anode catalyst configured to promote oxidation of water: and a proton exchange membrane (PEM) between the cathode and the anode, wherein the cathode, anode, and proton exchange membrane are configured such that water at the anode reacts to form oxygen and positively charged hydrogen ions, and the positively charged ions react at the cathode to form hydrogen (H2): wherein the catalyst comprises a Y2Ru2O7—NaBH4 catalyst.
Resumen de: US2025361467A1
Disclosed is a process and system for generating hydrogen from carbon dioxide. The process and system for generating a hydrogen gas stream from a carbon dioxide gas stream comprises converting a first waste carbon dioxide gas stream to an organic feedstock using an algal source in a photosynthesis step. The organic feedstock is then converted using an organism to the hydrogen gas stream and gaseous by-products in a biodecomposition step. The generated hydrogen gas may then be collected.
Resumen de: US2025361178A1
Providing an implementable renewable fuel gas plant processes with management of greenhouse gases with minimal changes to existing plant set ups is a technical challenge to be addressed. Embodiments herein provide a system for renewable fuel gas generation and utilization in industrial plants with carbon dioxide as heat carrier. The system design integrates renewable fuel gas (H2) which is generated within the system and utilized to meet the thermal energy requirements of the production process. CO2 produced as byproduct of calcination in a process equipment, such as during calcination in cement plant is used as a heat-transferring medium to heat the H2. Further, the system provides recycling of the generated byproducts by separating the exhaust gases, comprised of CO2 and H2O. The H2O is recycled to generate H2 via electrolysis. The separated CO2 again serves as a heat-transferring medium, while the excess CO2 is sequestrated.
Resumen de: US2025360480A1
Provided herein are systems and methods for controlling production of low-carbon liquid fuels and chemicals. In an aspect, provided herein is a method controlling a process that produces e-fuels. In another aspect, provided herein is a system for producing an e-fuel.
Resumen de: AU2024270923A1
A hydrogen generating device provided with a sound insulation cover and a hydrogen generating device provided with a novel power module. The hydrogen generating device comprises a water tank, an electrolytic cell, a humidifier, a refining device, and a sound insulation cover; the water tank is used for containing electrolyzed water; the electrolytic cell is arranged in the water tank and is used for electrolyzing water to generate hydrogen-containing gas; the humidifier is provided with a humidifying chamber for containing supplementary water; the refining device is arranged in the humidifier and is used for refining the hydrogen-containing gas; the sound insulation cover is arranged in the humidifier and is provided with a sound insulation cavity, a connecting tube connecting the water tank and the refining device, and a gas outlet hole; the hydrogen-containing gas passes through the connecting tube and the refining device and flows into the supplementary water in the sound insulation cavity, and then the hydrogen-containing gas flows into the humidifying chamber through the gas outlet hole. Thus, according to the present invention, sound generated when the hydrogen-containing gas flows in the device can be insulated by means of the sound insulation cover, so as to improve the experience effect, and heat dissipation can be effectively carried out on a circuit board, thereby improving the operation efficiency.
Resumen de: DE102024204777A1
Elektrochemisches System mit einem elektrochemischen Stack (1), wobei der Stack (1) einen Einlass (201; 301) aufweist, über den eine Flüssigkeit eingeleitet werden kann, und einen Auslass (202; 302), über den eine Flüssigkeit ausgeleitet werden kann. Der Einlass (201; 301) ist mit einem ersten Flüssigkeitsbehälter (25) verbindbar und der Auslass (202; 302) mit einem zweiten Flüssigkeitsbehälter (32).
Nº publicación: EP4653579A1 26/11/2025
Solicitante:
MITSUBISHI HEAVY IND LTD [JP]
Mitsubishi Heavy Industries, Ltd
Resumen de: EP4653579A1
A hydrogen production system is provided with: a solid oxide electrolysis cell (SOEC) for electrolyzing water vapor; a power supply device for applying a voltage equal to or higher than a thermoneutral voltage to the SOEC; and a water vapor generation device for generating at least part of the water vapor supplied to the SOEC by heating water using surplus heat of the SOEC.