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1081
results.
Updated on
28/06/2025 [07:28:00]
Results 500 to 525 of 1081
Absstract of: WO2025103558A1
Porous hydrophilic separator, its method of production, and an alkaline electrolyzer with such separator In an alkaline electrolyzer (12), especially for production of hydrogen gas, the separator (11) has larger pores in layers (8, 9) on its outer sides (7A, 7C), facing the electrodes (13, 14), than in the bulk layer (10). In a practical embodiment, the separator (11) is composed of two diaphragms (7, 7'), each with asymmetric pore structure, where the diaphragms (7, 7') are oriented such that largest pores are on the outer sides of the sep- arator (11).
Absstract of: WO2025103448A1
A method for generating hydrocarbon molecules by magnetic field-assisted energy radiation, comprising: in the presence of an external magnetic field, making a composite catalyst come into contact with at least one hydrogen-containing source; and performing energy radiation on the composite catalyst and the hydrogen-containing source to generate hydrogen molecules, wherein the composite catalyst comprises at least one nano-substrate structure and at least one atomic site, and the atomic site comprises one or more chemical elements selected from the group consisting of Mn, Co, Fe, Al, Cu, Ni, Zn, Ti, La, Ru, Rh, Ag, Au, Pt, Pd, Os, and Ir.
Absstract of: WO2025103030A1
Disclosed in the present invention are an electrolytic hydrogen production system capable of continuously adapting to power supply fluctuation, and an electrolytic hydrogen production method. An electrolytic cell of the electrolytic hydrogen production system comprises n electrolytic sections (6); each electrolytic section (6) comprises 2y electrolytic chambers (5), two cathode end plates (2) and an anode middle plate (1); the two cathode end plates (2) are located at two ends of the electrolytic section (6), and the anode middle plate (1) is located in the middle of the electrolytic section (6); each electrolytic section (6) is divided into a left part and a right part, and each part comprises y electrolytic chambers (5), wherein n is greater than 1, y is greater than 1, and the n electrolytic sections (6) are continuously arranged in series from 1 to n. The electrolytic cell of the electrolytic hydrogen production system of the present invention comprises n electrolytic sections (6), and the temperature of an electrolyte in each electrolytic section (6) of the electrolytic cell is constant during operation, so that the electrolytic hydrogen production system of the present invention can be continuously regulated and controlled in a fluctuating power supply state, has high adaptability, is more adaptable to variable and fluctuating power supply input conditions, and has better safety performance.
Absstract of: US2025163592A1
A wind-powered electrolysis arrangement is provided including a plurality of wind turbines of an offshore wind park; a distributed electrolyzer plant including a plurality of electrolyzers, wherein each electrolyzer is arranged on a wind turbine platform; a balance of plant of the distributed electrolyzer plant, installed on a main platform in the wind park; and a plurality of product pipelines, wherein each product pipeline is arranged to convey a number of products between the balance of plant and a distributed electrolyzer. A method of operating such a wind-powered electrolysis arrangement is also provided.
Absstract of: US2025163596A1
Provided is an electrolyzer power control system that includes a reactive harmonic current reference generation stage. The reactive harmonic current reference generation stage selects a reactive power set point for reactive power drawn by a rectifier from a grid, determines a reactive power current reference based on the reactive power set point, aggregates the reactive power current reference with a reference current of harmonic currents that the rectifier injects in or draws from the grid, determines a reactive harmonic current reference that compensates for both the reactive power and the harmonic currents and outputs the reactive harmonic current reference. Switching signals that operate the rectifier are generated based on the reactive harmonic current reference.
Absstract of: US2025167271A1
An integrated energy system comprising a power plant including at least one nuclear reactor and electrical power generation system, the at least one nuclear reactor being configured to generate steam, and the electrical power generation system being configured to generate electricity, a desalination system configured to receive at least a portion of the electricity and steam to produce brine, an electrolysis process configured to process the brine into Sodium Hydroxide (NaOH), a Sodium Formate (HCOONa) production process configured to receive the Sodium Hydroxide (NaOH) to produce Sodium Formate (HCOONa), a Hydrogen (H2) extraction reactor configured to receive the Sodium Formate (HCOONa) and produce Hydrogen (H2), and a fuel cell configured to receive the Hydrogen (H2).
Absstract of: AU2024227784A1
An apparatus and process for the activation of catalyst material utilized in ammonia cracking can include an initial use of hydrogen and heat to perform an initial stage of catalyst activation and a subsequent use of ammonia and heat to perform a subsequent state of catalyst activation. The subsequent use of ammonia can be configured so that different catalytic material at different plant elements are activated in a pre-selected sequence to provide activation of the catalytic material utilized in different plant elements. Some embodiments can be configured to avoid excess temperatures that can be detrimental to equipment that can be positioned upstream of a furnace in some embodiments while also avoiding sintering of the catalytic material.
Absstract of: US2025160931A1
A nasal turbinate hemostatic electrode includes a main body, where an end of the main body is fixedly connected to a tip; the tip includes a first electrode and a second electrode; side walls of the first electrode and the second electrode are rounded; the first electrode and the second electrode are spaced apart, and have a same surface area; an end of the main body adjacent to the tip is provided with an outlet hole; the outlet hole is connected to an inlet pipe; the outlet hole is configured to deliver an electrolyte to the tip; and the first electrode and the second electrode are configured to conduct a plasma current in the electrolyte. The nasal turbinate hemostatic electrode prevents the surgical electrode from causing a secondary injury to the patient during an operation process, further improving the use safety of the surgical electrode.
Absstract of: US2025162961A1
Systems and methods for producing methanol using syngas, which is a primarily a mixture of hydrogen and carbon monoxide, hydrogen and a carbon dioxide by-product that significantly reduce carbon dioxide emissions and/or sequestration. The syngas may be produced, for example, by an autothermal reactor, a steam methane reformer, or a gasifier. The hydrogen may be produced by an electrolyzer.
Absstract of: US2025162922A1
A the plant for producing glass and hydrogen includes: a glass melting furnace that melts a glass raw material with combustion heat of fuel to generate molten glass; an exhaust passage which extends from the glass melting furnace and through which exhaust gas generated in the glass melting furnace passes; a boiler that is provided in the exhaust passage and conducts heat exchange between the exhaust gas and water to generate steam; and an electrolyzer that electrolyzes the steam to generate hydrogen and oxygen.
Absstract of: US2025162701A1
The present invention relates to an autonomous captive aerostat (2) of the type comprising a closed hydrogen-reservoir volume (24) providing lift, an outer membrane (40) equipped with photovoltaic cells (8) for collecting solar radiation, and a ground tether (20) comprising a cable for transmitting the electrical energy produced by the cells (8). The captive aerostat according to the invention is notable in that it comprises devices (4) for capturing water or moisture contained in the atmosphere constituting its outer membrane (40), means enabling this water to be converted into at least one form of energy selected from hydrogen, oxygen and heat, and pipes each enabling some of the collected water and at least one of the forms of energy generated or converted within the aerostat to be distributed to the ground. Applicable notably to the distribution of energy to urban environments.
Absstract of: AU2023405114A1
The invention relates to an electrolysis system (1) comprising an electrolyser (3) for producing hydrogen (H
Absstract of: US2025162891A1
The present invention relates to systems and processes for utilizing produced water and captured carbon dioxide to produce high-value products. The system includes a produced water processing system, a carbon capture system, an electrolyzer, and a conversion chamber. The electrolyzer includes a first chamber, a second chamber, and a semi-permeable membrane and first electrode in the first chamber and a second electrode in the second chamber. The first chamber receives treated saturated produced water. The second chamber is operated at a second operating pressure that is less than the first operating pressure and facilitates the passage of sodium ions across the membrane. A current is applied to the electrodes such that the first electrode functions as an anode and the second electrode functions as a cathode, producing hydrogen gas and sodium hydroxide in the second chamber and chlorine gas in the first chamber. The polarity of the electrodes and the flow of reagents into the first and second chambers and the flow of products out of the first and second chambers may be reversed.
Absstract of: US2025162866A1
A method for producing hydrogen using a feed stream comprising ammonia is provided. The method can include the steps of: heating the feed stream in a first heat exchanger to produce a heated feed stream, wherein the heated feed stream is at a temperature above 500° C.; introducing the heated feed stream into a first reaction zone under conditions effective for catalytically cracking the heated feed stream to produce a raw hydrogen stream, wherein the raw hydrogen stream comprises hydrogen and nitrogen; cooling the raw hydrogen stream by indirect heat exchange against a first cooling fluid to form a cooled hydrogen stream; and purifying the raw hydrogen stream to produce a hydrogen product stream and a tail gas, wherein the tail gas has a higher concentration of nitrogen as compared to the hydrogen product stream.
Absstract of: US2025161923A1
Tantalum nitride and specifically a novel Ta3N5 nanoparticles, such as single crystalline Ta3N5 nanoparticles, are disclosed. The nanoparticles used with a co-catalyst is further disclosed. The present invention also relates to Ta3N5 nanoparticles modified with a metal oxide, such as a CoOxcocatalyst, wherein Ox represents an oxide that is part of the cobalt oxide. A catalyst, such as for water oxidation to produce O2, is disclosed. The nanoparticles can further be modified to include a water reducing catalyst. A water splitting catalyst is further disclosed. Methods of making the nanoparticles and catalyst are also disclosed. Methods to split water utilizing the catalyst are further described.
Absstract of: US2025163597A1
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.
Absstract of: US2025163594A1
An electrolyzer system includes stacks of electrolyzer cells configured receive steam and air, and output a hydrogen product stream and an oxygen exhaust stream, and a first heat pump configured to extract heat from the oxygen exhaust stream to generate a first portion of the steam provided to the stacks.
Absstract of: US2025163593A1
A wind power plant is provided, including: one or more generator devices for generating electrical power from wind power; a plurality of hydrogen production units for producing hydrogen from the generated electrical power; a plurality of DC-DC converters each being electrically connected with the one or more generator devices and with a respective one of the plurality of hydrogen production units, and each DC-DC converter being configured for supplying power with a tunable output voltage to the respective hydrogen production unit; and a control device for controlling the power supplied by each DC-DC converter to the respective hydrogen production unit based on a current power output of the one or more generator devices. With the proposed wind turbine plant the supply of power to the plurality of hydrogen production units can be improved.
Absstract of: US2025163586A1
The invention relates to a method for operating an electrolysis plant having an electrolyser for generating hydrogen (H2) and oxygen (O2) as product gases, with water being supplied as starting material and being split at a proton-permeable membrane into hydrogen (H2) and oxygen (O2), a product gas stream being formed in a phase mixture comprising water (H2O) and a relevant product gas, and a product gas stream being supplied to a gas separator arranged downstream of the electrolyser, characterized in that the fluoride release of the membrane is determined on the basis of the operating time, the temporal progression of the fluoride concentration being ascertained, with a measure for the operation-induced degradation of the proton-permeable membrane being ascertained as the result of a release of fluoride. The invention furthermore relates to a corresponding electrolysis plant and to a measuring device for carrying out the method.
Absstract of: US2025163830A1
An energy storage system converts variable renewable electricity (VRE) to continuous heat at over 1000° C. Intermittent electrical energy heats a solid medium. Heat from the solid medium is delivered continuously on demand. An array of bricks incorporating internal radiation cavities is directly heated by thermal radiation. The cavities facilitate rapid, uniform heating via reradiation. Heat delivery via flowing gas establishes a thermocline which maintains high outlet temperature throughout discharge. Gas flows through structured pathways within the array, delivering heat which may be used for processes including calcination, hydrogen electrolysis, steam generation, and thermal power generation and cogeneration. Groups of thermal storage arrays may be controlled and operated at high temperatures without thermal runaway via deep-discharge sequencing. Forecast-based control enables continuous, year-round heat supply using current and advance information of weather and VRE availability. High-voltage DC power conversion and distribution circuitry improves the efficiency of VRE power transfer into the system.
Absstract of: US2025163587A1
An electrolyzer or unitized regenerative fuel cell has a flow field with at least one channel, wherein the cross-sectional area of the channel varies along at least a portion of the channel length. In some embodiments the channel width decreases along at least a portion of the length of the channel according to a natural exponential function. The use of this type of improved flow field channel can improve performance and efficiency of operation of the electrolyzer device.
Absstract of: WO2025105600A1
According to one embodiment of the present invention, a hierarchical porous transport layer comprises: a first porous layer which has first pores and which is formed of first particles or fibers; a second porous layer which includes second pores having an average size smaller than that of the first pores and which is formed of second particles or fibers on the first porous layer; and an intermediate layer which is formed between the first porous layer and the second porous layer, and in which the first particles or fibers and the second particles or fibers are mixed and thermally bonded to each other.
Absstract of: WO2025104428A1
The invention provides a device for hydrogen production comprising a reaction chamber containing one or more catalysts disposed therein, a fuel gas inlet, and a hydrogen-rich gas outlet; a first reactant gas chamber having a first reactant gas inlet for conveying a first reactant gas and being in fluid communication with an exhaust; and a second reactant gas chamber having a second reactant gas inlet for conveying a second reactant gas; wherein the reaction chamber and the first reactant gas chamber share a first wall therebetween, the first wall comprising a thermally conductive substrate having a reaction chamber face and a first reactant gas chamber face, wherein the first reactant gas chamber face of the first wall has a reaction surface which is coated with a reactant gas decomposition catalyst; wherein the first reactant gas chamber further comprises a second wall opposite the first wall defining a volume therebetween, the second wall being shared between the first reactant gas chamber and the second reactant gas chamber; wherein the second wall comprises one or more apertures disposed in an aperture-containing area along a length and width of the second wall such that the second reactant gas chamber and the first reactant gas chamber are in fluid communication with one another, wherein the aperture-containing area has a first section, a second section, and a third section, the first section being a third of the aperture-containing area distal to the fuel gas inlet and
Absstract of: WO2024013139A1
The invention relates to a facility comprising: - a series of n electrolysers (4) designed to electrolyse water (1) and produce a hydrogen-aqueous solution mixture (5), the series having an overall capacity greater than 40 MW; - a gas-liquid separation device (8) configured to remove the aqueous solution contained in the mixture (5) produced by the series of n electrolysers (4) and produce a hydrogen stream (9). The gas-liquid separation device (8) comprises two flow conveying lines (21, 22) arranged one above the other; either or both of the two conveying lines being supplied with the mixture (5) and the two conveying lines being in fluid communication with one another via one or more segments (23) so that the hydrogen passes from the lower line (22) to the upper line (21) and/or the aqueous solution passes from the upper line to the (21) lower line (22).
Nº publicación: KR20250070912A 21/05/2025
Applicant:
에스케이이노베이션주식회사
Absstract of: US2025153146A1
An ammonia oxidation catalyst and a catalyst system and method using the ammonia oxidation catalyst are provided. The catalyst comprises a metal oxide including titanium and chromium, wherein an energy band gap of the metal oxide measured by UV-Vis DRS is less than 1.4 eV. The catalyst system comprises an ammonia decomposition reactor and a catalyst unit which is located downstream from the ammonia decomposition reactor, and includes the above-described ammonia oxidation catalyst.
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