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935
results.
Updated on
30/05/2025 [06:59:00]
Results 725 to 750 of 935
Absstract of: CN118843716A
The production of fuels from low carbon electricity and carbon dioxide by using solid oxide electrolysis cells (SOEC) and Fischer-Tropsch synthesis is presented. Fischer-Tropsch synthesis is an exothermic reaction which can be used for generating steam. Steam generated from a liquid fuel production (LFP) reactor system in which a Fischer-Tropsch reaction occurs is used as a feed to the SOEC. And the efficiency of the whole electrolysis system is improved by the steam with higher temperature. The integration of LFP steam improves the efficiency of electrolysis because the heat of vaporization of liquid water does not need to be supplied by the electrolyzer.
Absstract of: CN119800406A
本申请涉及析氢材料制备技术领域，主要公开了一种多元合金多孔电极及其制备方法、应用。其中，多元合金多孔电极的制备方法包括以下步骤：制备多元合金前驱体；将多元合金前驱体进行活化处理，得到多元合金多孔电极；多元合金前驱体掺杂有稀土金属和Al。所提供的制备方法操作简单，易于扩大制备，而且所制备得到的电极材料具有三维连续的孔道结构，可以极大地提高电解水制氢活性，同时其中掺杂的稀土元素能够抑制活性金属溶出，具有很大的工业应用前景。
Absstract of: WO2025075497A1
The invention provides a separator (1) comprising a first separator side (2), a second separator side (3), a porous membrane (100) and a reinforcement support element (200), wherein (i) the membrane (100) comprises a silicon comprising layer (110) having a first layer side (101) and a second layer side (102), wherein a distance between the first layer side (101) and the second layer side (102) defines a membrane thickness (d mem), (ii) the membrane comprises pores (140), the pores (140) defining open fluid channels from the first layer side (101) to the second layer side (102), (iii) a porosity of the membrane (100) is in the range 1- 10%, (iv) a mean pore cross-sectional dimension (dp) is equal to or less than 10 µm, (v) the membrane thickness (dmem) is equal to or less than 200 µm, and (vi) the membrane comprises a first layer (121) arranged at the first layer side (101) and a second layer (122) arranged at the second layer side (102), wherein the first layer (121) is electrically conductive, and the second layer (122) is electrically conductive, wherein the first layer (121) directly contacts the silicon comprising layer (110), and the second layer (122) directly contacts the silicon comprising layer (110), (vii) the reinforcement support element (200) is configured from the first separator side (2) to the second separator side (3), wherein the reinforcement support element (200) is connected to the silicon comprising layer (110), wherein the reinforcement support elemen
Absstract of: WO2025075619A1
Systems and methods for power generation are provided. An example method includes pretreating water by a water pretreatment system to obtain purified water, providing the purified water to a chemical reaction chamber containing a catalyst, applying a focused magnetic field and an electric field to a mixture of the purified water and the catalyst to cause generation of structurally altered gas molecules from the purified water, wherein the structurally altered gas molecules are a combination of two parts hydrogen and one part oxygen and the structurally altered gas molecule has a hydrogen-oxygen-hydrogen bond angle between 94 degrees and 104 degrees and a hydrogen-oxygen bond length between 0.95 Angstrom and 1.3 Angstrom, and providing the structurally altered gas molecules to a turbine, wherein the turbine combusts gas includes the structurally altered gas molecules to drive a turbine generator in order to generate electrical power.
Absstract of: WO2025073665A1
The present invention relates to a closed carbon loop process comprising: a first step, wherein hydrogen is produced via water electrolysis, a second step, wherein oxygen and/or steam is reacted in a carbon gasification step with solid carbon produced in the fifth step and hydrogen produced in the first step to yield carbon oxides and/or hydrocarbons, wherein the hydrocarbons optionally comprise hetero atoms, a third step, wherein the carbon oxides and/or hydrocarbons produced in step two are converted in a chemical reaction step into carbon-containing products, a fourth step, wherein the carbon-containing products produced in step three are used until they become waste, a fifth step, wherein the waste based on the carbon-containing product produced in step three is converted into solid carbon and a hydrogen-containing product.
Absstract of: WO2025073649A1
The invention relates to a method for producing hydrogen that comprises the following steps: - high-temperature electrolysis of steam in an electrolysis unit (102) taking as input a first flow (F1) comprising steam and a second flow (F2) comprising air, the electrolysis providing a third flow (F3) comprising hydrogen and nitrogen; and - separating the hydrogen and the nitrogen in the third flow (F3), in a purification unit (110), provided to receive the third flow (F3) and provide a fourth flow (F4) essentially comprising hydrogen, and a fifth flow (F5) comprising hydrogen and nitrogen; characterised in that the method further comprises recovering the hydrogen contained in the fifth flow (F5) for the electrolysis. The invention also relates to a system (300) implementing such a method.
Absstract of: WO2025073609A1
The invention relates to a method for synthesizing NH3 with a variable throughput on a system comprising multiple synthesis units connected in parallel. A reactant gas stream comprises H2 which is provided by electrolyzing water with an electric current from a renewable energy. The currently available quantity of H2 varies on the basis of the currently available quantity of renewable energy. On the basis of the currently available quantity of H2 as such, the reactant gas stream is introduced into an individual synthesis unit of the synthesis units or into a plurality of synthesis units or all of the synthesis units in a divided manner in independent sub-streams, NH3 then being synthesized from H2 and N2 in said synthesis unit(s). The invention additionally relates to a system which is configured for carrying out the method.
Absstract of: WO2025075506A1
The present invention relates to a coated porous media comprising a porous media grafted with at least one compound according to Formula 1 or Formula 2: (1), (2) wherein the asterisk * designates a covalent bond with the porous media, wherein at least one of R1, R2, R3, R4, and R5 groups are different from a hydrogen atom, wherein R1, R2, R3, R4 and R5 groups are independently selected from nitro, bromo, chloro, iodo, thiocyanato, sulphate, sulphonate, sulphonium salts, phosphate, phosphonate, phosphonium salts, amine, ammonium, alcohol, aldehyde, ketone, carboxylic acid, ester, amide, nitrile, anhydride, acid halide, alkyl, alkenyl, alkynyl, aryl, naphthyl, anthryl, pyrryl, polyaromatic groups of higher degree, and wherein the alkyl, alkenyl, alkynyl, aryl, naphthyl, anthryl, pyrryl and polyaromatic groups of higher degree comprise at least one group selected from: nitro, bromo, chloro, iodo, thiocyanato, sulphate, sulphonate, sulphonium salts, phosphate, phosphonate, phosphonium salts, amine, ammonium, alcohol, aldehyde, ketone, carboxylic acid, ester, amide, nitrile, anhydride, and acid halide, wherein R6 group is selected from vinylic terminated organo-silicon compounds, compounds with alkyl chains with at least 6 carbon atoms, preferably at least 10 carbon atoms, or vinylic terminated polar molecules, and wherein R7 group is either a hydrogen atom or a methyl group. The present invention further relates to a coated porous media, comprising a porous media grafted with at
Absstract of: BE1031991A1
L’invention propose un système et un procédé de régulation du fonctionnement des séparateurs gaz-liquide (GLSan, GLSca) d’un électrolyseur comprenant une pile (10), des séparateurs gaz-liquide anodique et cathodique séparant l’électrolyte et le gaz le long d’un niveau de lessive (lan,lca), le gaz de dioxygène et de dihydrogène s’écoulant de leur chambre respective à travers une vanne de commande de gaz (Van, Vca), caractérisée en ce que la régulation utilise des données de commande représentatives de la pression de gaz anodique (pan) ; la pression de gaz cathodique (pan) ; le niveau de lessive anodique (Ian) ; le niveau de lessive cathodique (Ica) ; pour commander chacune des deux vannes de commande de gaz (Van, Vca) et chacun desdits capteurs permettant d’envoyer des signaux de fonctionnement aux deux vannes de commande de gaz (Van, Vca) pour réguler les pressions de gaz (pan,pca) et les niveaux de lessive (lan,lca) dans le séparateur gaz-liquide anodique (GLSan) et le séparateur gaz-liquide cathodique, (GLSca).
Absstract of: WO2025075575A1
The invention is related to the heat recovery system of the electrolysis unit with heat transfer fluid, which is used to recover the excess heat produced by REM electrolyzers, which separate water into hydrogen and oxygen gases using electrical energy. The invention is particularly related to the heat recovery system of the electrolysis unit with heat transfer fluid, which takes the heat energy generated during the electrolysis process of the REM electrolyzer (20) used to obtain hydrogen, through the cooling plate (22), which allows the electrolyzer (20) to cool down, and sends this waste heat to the heat exchanger (40) with the help of heat transfer pipes (30) to recover the heat, which contains heat transfer fluid containing colemanite, borax, AI2O3, SiO3, CuO, TiO2, SiL, szaybelite, boron carbide, boron solid particles between 10-200 nanometers, which can change phase, do not cluster.
Absstract of: WO2025074991A1
Provided is a control device including: a step in which a current command value regarding current to be applied to an electrolytic stack is determined; and a step in which pure-water adjustment amount command values for adjusting the pressure or/and flow rate of water to be supplied to the electrolytic stack are determined on the basis of the current command value. The control device further includes a step A in which, when the current command value is changed from a first current command value (current command value c1) to a second current command value (current command value c2), which is a different value, and the pure-water adjustment amount command value is changed from a first pure-water adjustment amount command value (pure-water adjustment amount command value w1) to a second pure-water adjustment amount command value (pure-water adjustment amount command value w2), which is a different value, measured values of the pressure or/and flow rate are caused to reach the second pure-water adjustment amount command value from the first pure-water adjustment amount command value before a measured value of current applied from a power converter to the electrolytic stack reaches the second current command value from the first current command value.
Absstract of: WO2025074772A1
Provided are a multilayer resin pipe suitable for use in a water electrolysis system operating at high voltage, a water electrolysis system provided with this multilayer resin pipe, and a hydrogen transfer method using this multilayer resin pipe. The multilayer resin pipe has: an electrically insulating main pipe; an electrically insulating pressure resistant layer covering an outer surface of the main pipe; an electrically insulating gas barrier layer covering an inner surface of the main pipe; and an electrically insulating elution suppressing layer covering an inner surface of the gas barrier layer.
Absstract of: US2025116007A1
An ammonia generation system includes an electrochemical cell including a cathode configured to receive a cathode inlet stream comprising nitrogen gas, an anode configured to receive an anode inlet stream and form hydrogen ions, and an electrolyte configured to transport the hydrogen ions from the anode to the cathode. The cathode is configured to reduce the hydrogen ions to hydrogen gas, mix the hydrogen gas and the cathode inlet stream, and output a cathode outlet stream comprising a mixture of the hydrogen gas and the nitrogen gas. The ammonia generation system further includes an ammonia synthesis reactor configured to receive a reactor inlet stream comprising at least a first portion of the cathode outlet stream.
Absstract of: US2025115476A1
According to some embodiments, a process for producing hydrogen may comprise operating an electrolysis cell with a source of electricity to produce an oxygen stream and a hydrogen stream from water, reacting a hydrocarbon feedstock with the oxygen stream to partially oxidize the hydrocarbon feedstock, thereby producing a synthesis gas comprising hydrogen and carbon monoxide; passing the synthesis gas and a water stream to a heat exchanger to produce steam and to cool the synthesis gas; and reacting at least a portion of the synthesis gas from the heat exchanger and at least a portion of the steam from the heat exchanger. The source of electricity to the electrolysis cell for the totality of the operation of the electrolysis cell is not produced from energy provided by the combustion of hydrocarbons;
Absstract of: US2025118773A1
An interconnect for an electrochemical stack includes at least one of alternating air channel ribs of different length, seal gutters recessed relative to a perimeter seal surface on a fuel side of the interconnect, or fuel inlet and outlet plenums which extend perpendicular to fuel channels.
Absstract of: US2025116022A1
A method of operating a solid oxide electrolysis cell (SOEC) system at partial load, the SOEC system including a plurality of branches each including at least one SOEC stack, includes determining a thermally neutral target voltage and cycling an ON phase and an OFF phase for each of the branches such that the SOEC system operates at an average operating power equal to a chosen percentage of the operating power at the thermally neutral target voltage. In the ON phase, the SOEC stacks in a given branch operate at the thermally neutral target voltage, and in the OFF phase, the SOEC stacks in the given branch are unloaded to an open circuit voltage and operate at 0% of rated power. The frequency of OFF phases for each branch is determined such that stronger or healthier branches have a lower frequency of OFF cycles than weaker or less healthy branches.
Absstract of: US2025116016A1
A buoyant hydrodynamic pump is disclosed that can float on a surface of a body of water over which waves tend to pass. Embodiments incorporate an open-bottomed tube with a constriction. The tube partially encloses a substantial volume of water with which the tube's constriction interacts, creating and/or amplifying fluid-flow oscillations therein in response to wave action. Wave-driven oscillations result in periodic upward ejections of portions of the water inside the tube that can be collected in a reservoir that is at least partially positioned above the mean water level of the body of water, or pressurized by compressed air or gas, or both. Water within such a reservoir may return to the body of water via a turbine, thereby generating electrical power (making the device a wave engine), or the device's pumping action can be used for other purposes such as water circulation, propulsion, dissolved minerals extraction, or cloud seeding. Methods are disclosed for manufacture of hydrogen at sea and for delivery of said hydrogen using a ship. Methods are disclosed for filling a hydrogen-loaded carrier ship at sea.
Absstract of: US2025116009A1
This disclosure provides systems, methods, and apparatus related to electrochemical reduction of gasses. In one aspect, a method includes flowing a gas through a reduction device. The gas is carbon dioxide (CO2) or nitrogen (N2). The reduction device reduces the gas and generates a product stream including the gas, hydrogen (H2), and a chemical. The product stream is flowed through a hydrogen removal device. The hydrogen removal device removes hydrogen from the product stream. The product stream with the hydrogen removed is flowed through the gas reduction device.
Absstract of: CN118183629A
The present application relates to an integrated process and catalyst for producing hydrogen iodide from hydrogen and iodine. The invention provides a method for producing hydrogen iodide. The process comprises providing a gas phase reactant stream comprising hydrogen and iodine, and reacting the reactant stream in the presence of a catalyst to produce a product stream comprising hydrogen iodide. The catalyst contains at least one selected from the group consisting of nickel, cobalt, iron, nickel oxide, cobalt oxide, and iron oxide. The catalyst is loaded on the carrier.
Absstract of: WO2024178009A2
A hydrogen generating cell comprising an input electrode plate pair, an output electrode plate pair, an additional X plate electrode positioned adjacent the output electrode plate pair, and a plurality of intermediate electrode plates disposed between the input and output electrode plate pairs. A plasma torch is spaced apart from and inductively coupled to the input electrode plate pair. A pulsed DC voltage is applied to the plasma torch and X-plate, while a lower voltage pulsed DC voltage is applied to the input and output electrode plate pair to cause generation of hydrogen gas from an aqueous solution in which the cell is immersed.
Absstract of: MX2024010526A
The present disclosure relates to methods and reactors for generating of gas and specifically for generation of oxygen gas and hydrogen gas.
Absstract of: AU2025202132A1
METHODS TO PROVIDE ELECTRIC POWER FROM RENEWABLE ENERGY EQUIPMENT TO AN ELECTRICAL LOAD An HVDC system comprising an AC/DC converter sub-system electrically connected to a renewable energy equipment and a VSC sub-system is provided. A method comprises operating the renewable energy equipment to function as a voltage source to energize an HVDC link between the AC/DC converter sub-system and the VSC sub-system; operating the VSC sub system as a voltage source to energize at least one electrical load electrically connected thereto; if it is determined that the power production rate of the renewable energy equipment is not within a designated parameter, operating the equipment to follow the VSC sub-system such that controlling the AC electric power output influences the power production rate. If it is within the designated parameter, operating the VSC sub-system to follow the renewable energy equipment such that the VSC sub-system adjusts the properties of its AC electric output to match the properties of the electric power generated by the renewable energy equipment.
Absstract of: AU2023363867A1
The invention relates to a method for the synthesis of ammonia (18), in which a gas mixture (make-up gas) (1) comprising hydrogen and nitrogen is provided in a first operating mode with a flow rate that is above a threshold value and in a second operating mode with a flow rate that is below this threshold value in order to form an ammonia synthesis gas (5), which is reacted in an ammonia reactor (R) in at least one first catalyst bed (K1) and in a second catalyst bed (K2), connected to the first catalyst bed, to form a synthesis product (16) containing ammonia, wherein in a cooling device (E3) arranged between the first (K1) and the second catalyst bed (K2), non-reacted ammonia synthesis gas (8) is used as a cooling agent in order to reduce the temperature of an ammonia synthesis gas (12) partially reacted in the first catalyst bed (K1) before it is forwarded to the second catalyst bed (K2), wherein in the second operating mode, the higher the flow rate of the provided make-up gas (1), the greater the reduction in temperature of the partially reacted ammonia synthesis gas (12). What is characteristic is that the ammonia synthesis gas (12) partially reacted in the first catalyst bed (K1) is cooled by indirectly exchanging heat with provided ammonia synthesis gas (8).
Absstract of: SE2250272A1
:The present invention relates to a system and method for producing hydrogen gas is provided The system comprises at least one gas transport vessel which is arranged to transport at least hydrogen up through water by buoyancy, a heat transfer unit connected to an electrolysis unit and arranged to transfer at least a portion of the waste heat from the electrolysis unit to the hydrogen gas that is to be transported by the gas transport vessel.
Nº publicación: WO2025074370A1 10/04/2025
Applicant:
PALICHA KAUSHIK [IN]
SESHADRI HARINIPRIYA [IN]
PALICHA, Kaushik,
SESHADRI, Harinipriya
Absstract of: WO2025074370A1
An electrocatalytic reactor for conversion of Green House Gas (GHG) emissions into value-added products (VAPs), which includes an electrocatalytic reactor equipped with symmetric or asymmetric electrodes (cathode and anode) that act as electrocatalyst, which are dipped in an electrolytic reaction solution that includes acidified deionised water (H3O+) and a catalyst initiator An external current of 1 to 5 A applied to the electrodes in a voltage range of 1 to 5 V for 3 to 5 hours, which initiates C-C coupling or C-O coupling reactions on the cathode surface forming short-lived cation radical intermediates, wherein the short-lived cation radical intermediates react among themselves, or react with in-situ produced H2 gas, leading to the formation of VAPs such as ethylene, propylene, butadiene, acetic acid, ethyl acetate, ethyl acetate esters, ethoxides, propionaldehyde, ethanol, amides, amines, ammonia, urea, azo-dyes, graphene, MWCNTs, SWCNTs.
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