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590
results.
Updated on
04/12/2025 [06:59:00]
Absstract of: EP4656506A1
A floating power plant (2) comprises a plurality of interconnected floating platforms (6) which are movable with respect to each other. Each floating platform (6) comprises a floating member (8), wherein the floating member (8) of at least one floating platform (6) has an internal chamber (9) for storing hydrogen. The floating power plant (2) is provided with an electrolyzer including a hydrogen output and a fuel cell including a hydrogen input. The largest number of the floating platforms (6) is provided with PV panels (3) and at least one of the floating platforms (6) is provided with the electrolyzer and/or the fuel cell. The electrolyzer is electrically connectable to the PV panels (3) and the hydrogen output and/or the hydrogen input is fluidly connectable to the internal chamber (9) of the floating member (8) of the at least one platform (6).
Absstract of: EP4656590A1
The present invention relates to a water-efficient method of storing hydrogen using a bicarbonate/formate-based aqueous reaction system, wherein the method comprises:(A) reducing aqueous bicarbonate using hydrogen to form formate and water,(B) at least partially separating water from the aqueous reaction system to provide water and concentrated salt components comprising formate, and(C) using the water provided in step (B) to form hydrogen for use in step (A) and/or to dissolve concentrated salt components comprising bicarbonate to provide aqueous bicarbonate for use in step (A).
Absstract of: EP4656771A1
A floating hydrogen production plant (2) comprises a plurality of interconnected floating platforms (6) which are movable with respect to each other. Each floating platform (6) comprises a floating member (7). The floating member (7) of at least one floating platform (6) has an internal chamber (8) for storing hydrogen. Each of the floating platforms (6) is provided with a plurality of hydrogen production devices (3) for producing hydrogen by electrolysis of water in the ambient air through solar energy. The hydrogen production devices (3) have respective hydrogen ports which are fluidly connectable to the internal chamber (8) of the floating member (7) of the at least one floating platform (6).
Absstract of: CN120569516A
The invention provides an electrolytic cell system (10). The electrolytic cell system comprises a heat storage unit (14) and an electrolytic cell (16). The heat storage unit (14) comprises at least one heat source feed inlet. The electrolytic cell (16) comprises at least one electrolytic cell cell (20), a steam inlet and at least one exhaust gas outlet. The exhaust outlet is connected to the heat source feed inlet to heat the heat storage unit (14). The heat storage unit (14) is configured to use its stored heat to generate steam for one of feeding into the steam inlet at a time and generating electricity or both feeding into the steam inlet at the same time and generating electricity. The invention also provides a system comprising an intermittent or variable power source (12) and an electrolytic cell system (10) as defined above. The intermittent or variable power source (12) may be configured to simultaneously or separately power the electrolysis cell (16) and heat the heat storage unit (14) via a heating element.
Absstract of: CN120344485A
The present invention relates to the field of hydrogen production from catalytic cracking of ammonia. The present invention comprises a primary cracking path comprising one or more catalyst-containing reaction tubes disposed within a roasting-type ammonia cracking reactor; and a parallel cleavage path comprising one or more secondary ammonia cleavage reactors arranged in succession and fluidly connected to each other. The invention can be used for producing hydrogen from ammonia.
Absstract of: EP4656772A1
The present disclosure provides a water electrolysis membrane electrode, a method for preparing the water electrolysis membrane electrode, and a water electrolyzer applying the water electrolysis membrane electrode. The water electrolysis membrane electrode includes a cathode gas diffusion layer, a cathode catalytic layer, an anion exchange membrane, a hydrophobic anode catalytic layer, and an anode gas diffusion layer that are stacked in sequence. Raw materials for preparing the hydrophobic anode catalytic layer include an anode catalyst, a hydrophobic material, and an anode ionomer. A mass ratio of the anode catalyst, the hydrophobic material, and the anode ionomer is 10:1-3:1-3. A porosity of the hydrophobic anode catalytic layer is 10%-40%.
Absstract of: EP4657576A1
Problem To provide a catalyst-loaded carbon having a high initial activity and excellent durability. Solution A catalyst-loaded carbon including catalyst particles and a carbon support, the catalyst particles being loaded on the carbon support. The carbon support has a crystallite size of 3.5 nm or greater and 9 nm or less, a BET specific surface area of 300 m<sup>2</sup>/g or greater and 450 m<sup>2</sup>/g or less, and a pore size of 5.0 nm or greater and 20.0 nm or less. The catalyst particles are made of platinum or a platinum alloy, have a crystallite size of 2.5 nm or greater and 5.0 nm or less and a surface area of 40 m<sup>2</sup>/g or greater and 80 m<sup>2</sup>/g or less.
Absstract of: AU2024213038A1
An electrolyser system and method of electrode manufacture. The electrolyser system may comprise a first vessel in communication with an electrolyser stack, a power supply, an electrode, a separator, a membrane, and a second vessel in communication with the electrolyser stack. The electrode may comprise a catalytic material and a micro- porous and/or nano-porous structure. The method of electrode manufacture may comprise providing a substrate, contacting the substrate with an acidic solution, applying an electric current to the substrate, simultaneously depositing a main material and supporting material comprising a scarifying material onto the substrate, and leaching the scarifying material.
Absstract of: EP4656774A2
Provided is a water electrolysis stack capable of improving durability. The water electrolysis stack includes a cell stack that is formed by stacking a plurality of water electrolysis cells, an inter-cell space is formed between each adjacent ones of the water electrolysis cells in the cell stack, and gas flows into the inter-cell spaces in water electrolysis.
Absstract of: AU2024222987A1
A system, comprising: an electrolyzer having a plurality of electrolysis cells arranged in a cell stack, wherein the electrolysis cells are electrically connected in series and grouped into two or more cell groups, each cell group having an electrical contact at either end; an electrical circuit having one or more switches, each switch coupled between the electrical contacts of a respective one of the cell groups and configured to selectively disconnect the cell group from the cell stack by electrically bypassing the cell group via a lower resistance path, to thereby vary the number of active electrolysis cells in the cell stack; and a controller configured to determine the number of active electrolysis cells based on a variable amount of direct current (DC) electrical energy supplied to the cell stack by an electrical energy source, and to control the one or more switches based on the determination.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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.
Absstract of: NZ799208A
The method and plant (1) for conversing solid recovered fuel pellets (117) made from municipal solid waste (103) allow the transformation of the municipal solid waste (103) into hydrogen with a high yield instead of landfilling or incinerating the municipal solid waste (103). The hydrogen rich product gas stream (601) can be used as feedstock for chemical reactions or for storing energy in a releasable manner.
Absstract of: CN120322494A
The present invention relates to a basic anion exchange membrane precursor (pAAEM) comprising a blend of at least one first polymer (P1) comprising recurring units derived from acrylonitrile and at least one second polymer (P2) comprising recurring units derived from vinyl lactam; and to an alkaline anion exchange membrane (AAEM) obtained therefrom.
Absstract of: US2025354277A1
A water electrolysis cell according to an embodiment includes: an anode electrode including an anode catalyst layer in which anode catalyst sheets are stacked via a gap, each anode catalyst sheet containing iridium oxide and being in the form of a nanosheet; a cathode electrode including a cathode catalyst layer in which cathode catalyst sheets are stacked via a gap, each cathode catalyst sheet containing platinum and being in the form of a nanosheet; and an electrolyte membrane containing a hydrocarbon-based material, placed between the anode electrode and the cathode electrode.
Absstract of: WO2024115474A1
The aim of the invention is to transport energy produced in an environmentally friendly manner by means of an offshore wind turbine to land in a simple and reliable manner. This is achieved by a method (100) for transporting hydrogen from a floating wind turbine (10) to a water vehicle (11), wherein hydrogen is provided in a storage tank (31) of a floating wind turbine (10), and a water vehicle (11) with a transport tank (36) is positioned by the floating wind turbine (10). The hydrogen is transported from the storage tank (31) to the transport tank (36) using a line (35) which is designed to transport the hydrogen.
Absstract of: NZ788420A
A process for preparing synthetic hydrocarbons from a biomass feedstock is provided. The process involves electrolyzing water in an electrolyzer to produce oxygen and hydrogen, using the generated oxygen to gasify a biomass feedstock under partial oxidation reaction conditions to generate a hydrogen lean syngas, adding at least a portion of the generated hydrogen to the hydrogen lean syngas to formulate hydrogen rich syngas, which is reacted a Fischer Tropsch (FT) reactor to produce the synthetic hydrocarbons and water. At least a portion of the water produced in the FT reaction is recycled for use in the electrolysis step, and optionally using heat generated from the FT reaction to dry the biomass feedstock.
Absstract of: 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.
Absstract of: 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.
Absstract of: 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
Absstract of: 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
Nº publicación: WO2025241835A1 27/11/2025
Applicant:
DALIAN INST OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES [CN]
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Absstract of: 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.
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