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656
results.
Updated on
02/09/2024 [07:13:00]
Results 450 to 475 of 656
Absstract of: WO2024150736A1
Problem To provide a technology capable of realizing intermittent or continuous production of hydrogen by bringing a metal such as magnesium hydride or magnesium metal into contact with water vapor and controlling the reaction to generate hydrogen gas, metal oxide, and heat as products. Solution A hydrogen gas production method that triggers a reaction that reacts a metal with water vapor to generate a metal oxide and hydrogen by introducing water vapor into a reactor housing a metal and recovers a gas that contains hydrogen from the reactor, wherein an inert gas is introduced into the reactor to stop the reaction, or the oxygen concentration of the gas recovered from the reactor is kept lower than the explosive limit oxygen concentration of hydrogen. Furthermore, the oxygen concentration can be kept low by reducing the oxygen content of the water vapor, and the temperature of the gas recovered from the reactor can be kept at a predetermined temperature if the inside of the reactor is cooled.
Absstract of: AU2024204405A1
Abstract Process for the production of a product gas containing nitrogen and hydrogen from ammonia comprising the steps of non-catalytic partial oxidation of ammonia with an oxygen containing gas to a process gas containing nitrogen, water, amounts of nitrogen oxides and residual amounts of ammonia; cracking of at least a part of the residual amounts of ammonia to hydrogen and nitrogen in the process gas by contact with a nickel containing catalyst and simultaneously reducing the amounts of nitrogen oxides to nitrogen and water by reaction with a part of the hydrogen formed during cracking of the process gas by contact of the process gas with the nickel containing catalyst; and withdrawing the hydrogen and nitrogen containing product gas.
Absstract of: US2024238736A1
The present disclosure relates to a membrane apparatus for selectively retaining and releasing target cations, such as lithium. The membrane apparatus comprises a cation exchange layer and an anion exchange layer that are coupled and configured for hydraulic communication with sufficient permselectivity to facilitate water splitting under an applied voltage. The cation exchange layer comprises a sorbing agent that has a target cation binding coefficient that is less than its hydrogen ion binding coefficient such that it may be efficiently regenerated by in situ produced hydrogen ions. Electrically regenerated ion exchange devices and methods are also described.
Absstract of: US2024238550A1
Method and system for generating a gas mixture. The gas mixture may be, for example, a hydrogen-oxygen or hydrogen-air gas mixture, and may be used for topical or inspired therapeutic applications. In one embodiment, the system may include a water electrolyzer combined with an oxygen humidifier reservoir such that hydrogen produced at the cathode of the water electrolyzer mixes directly with oxygen gas that has been introduced into the oxygen humidifier reservoir, for example, by sparging. In another embodiment, the cathode manifold of the water electrolyzer may be plumbed in series with a pump and the oxygen humidifier reservoir such that hydrogen-entrained water may be mixed with oxygen that has been delivered, for example, via sparging, to the oxygen humidifier reservoir. In an exemplary application, the system may be incorporated into a ventilator circuit and may provide a breathing gas mixture containing hydrogen to treat ischemia/reperfusion injury of brain tissue.
Absstract of: US2024238746A1
The invention relates to a thermal converter (1, 2) for generating from a parent compound a first fluid of first molecules (H2) with a first molecular weight and a second fluid of second molecules (O2) with a second molecular weight, whereby the first molecular weight of the first molecules (H2) is less than the second molecular weight of the second molecules (O2).In order to improve the efficiency of the thermal converter, the thermal converter comprises a spray device (18) for generating from the parent compound in fluid form a spray, which is supplied to a reaction device (1) for splitting the parent compound into a mixture compound of the first molecules (H2) and the second molecules (O2).
Absstract of: US2024240839A1
An electrochemical compressor utilizes an anion conducting layer disposed between an anode and a cathode for transporting a working fluid. The working fluid may include carbon dioxide that is dissolved in water and is partially converted to carbonic acid that is equilibrium with bicarbonate anion. An electrical potential across the anode and cathode creates a pH gradient that drives the bicarbonate anion across the anion conducting layer to the cathode, wherein it is reformed into carbon dioxide. Therefore, carbon dioxide is pumped across the anion conducting layer. The compressor may be part of a refrigeration system that pumps the working fluid in a closed loop through a condenser and an evaporator.
Absstract of: US2024240328A1
A water electrolysis stack in which a water electrolysis cell is laminated, a water supply side path for supplying water to the water electrolysis stack, and a hydrogen side path for recovering hydrogen generated from the water electrolysis stack are provided, and the water supply side path includes a pump which is a power source for supplying water to the water electrolysis stack, an ion exchanger arranged between the pump and the water electrolysis stack, a bypass which is a path for flowing water from the pump to the water electrolysis stack without passing through the ion exchanger, a valve for adjusting an amount of water flowing to the bypass, and a controller for adjusting a valve.
Absstract of: US2024240327A1
Disclosed in the present invention is an oxygen-hydrogen integrated machine including a machine housing (1), where a molecular sieve oxygen generation module and an electrolytic hydrogen generation module are provided in the machine housing (1), the molecular sieve oxygen generation module and the electrolytic hydrogen generation module respectively output oxygen and hydrogen at the same gas pressure by an oxygen pressure regulating valve (28) and a hydrogen pressure regulating valve (17), an oxygen flow limiting hole (30) and a hydrogen flow limiting hole (18) are respectively provided at an output end of the oxygen pressure regulating valve (28) and an output end of the hydrogen pressure regulating valve (17), and a ratio of the cross-sectional areas of the oxygen flow limiting hole (30) and the hydrogen flow limiting hole (18) is greater than 24:1. The present invention avoids a uncontrollable risk when the oxygen and the hydrogen are mixed.
Absstract of: US2024240329A1
An efficient oxyhydrogen generation device for medical care has a housing, an upper cover and a bottom cover which form a main frame. The housing is composed of a front part and a rear part, the bottom cover being fastened at the bottom of the housing to form a space for accommodating an electrolytic cell, a water supply tank, a water supply tank upper cover and a secondary water tank. The upper cover is fastened on the upper part of the housing and is provided with an atomized gas circulation part, a supply part for supplying water to the water supply tank, and a control panel for controlling the operation of an electrolyzing water hydrogen-oxygen generator. The oxyhydrogen generated by electrolysis sequentially enters the water supply tank and the secondary water tank by means of a gas guide plate and is cleaned. discharged from a gas circulation part.
Absstract of: US2024240339A1
A method of oxy-combustion includes providing an electrolyzer feedstock to at least an electrolyzer cell; separating the electrolyzer feedstock into a hydrogen feedstock and an oxygen feedstock using the at least one electrolyzer cell; combusting a first feedstock derived from the hydrogen feedstock and a second feedstock derived from the oxygen feedstock in a furnace; controlling one or more of a second feedstock composition or a pressure in the furnace; and recycling an exhaust steam from the furnace, wherein at least one portion of exhaust steam from the furnace is recycled in at least one of a steam feedstock and the electrolyzer feedstock.
Absstract of: US2024240338A1
Apparatuses for the generation of carbon dioxide and hydrogen from a water having a carbonate species are disclosed. The apparatus includes an anodic compartment having an anode disposed on a first side of the anodic compartment and a cathodic compartment having a cathode disposed on a first side of the cathodic compartment. The apparatus further includes a first cation permeable fluidic separator disposed on a second side of the anodic compartment and a second cation permeable fluidic separator disposed on a second side of the cationic compartment. A center compartment is defined between the first cation permeable fluidic separator and the second cation permeable fluidic separator. The apparatus further includes a flow control system configured to independently control flow of water through each of the anodic compartment, the cathodic compartment, and the center compartment. Methods of generating hydrogen, carbon dioxide, and oxygen from seawater using the apparatus are also disclosed.
Absstract of: US2024240336A1
Oxyfluoride derivatives and their preparation, as well as their uses as catalysts in electrochemistry, including the electrodes and electrochemical cells comprising them. These may be useful for hydrogen production.
Absstract of: US2024240337A1
Provided is a water electrolysis system that obtains hydrogen by water electrolysis with a water electrolysis cell, the water electrolysis system including a water electrolysis stack having a plurality of the water electrolysis cells, a water supply side passage that supplies water to the water electrolysis stack, a hydrogen side passage that discharges the hydrogen obtained in the water electrolysis stack from the water electrolysis stack, a plurality of voltage sensors that measures voltages for the respective water electrolysis cells or for each group of the water electrolysis cells, and a control device configured to acquire a voltage from each of the voltage sensors, determine whether the voltage is lower than a predetermined value and notify the water electrolysis cell has a failure when it is determined that the voltage is lower than a predetermined value.
Absstract of: US2024240334A1
A catalyst includes a support and a plurality of catalyst particles disposed on the support. The support may include a plurality of metal oxide or doped metal oxide particles and a plurality of organic groups attached to the metal oxide or doped metal oxide particles via diazonium salt reaction. The plurality of organic groups, which may be aromatic groups and/or alkyl groups, may be substituted with functional groups that are positively or negatively charged.
Absstract of: US2024239655A1
An object of the present invention is to provide a deuterium recovery method and deuterium recovery equipment that can recover and reuse deuterium or deuterium compounds used in semiconductor manufacturing processes. The present invention provides a deuterium recovery method including: generating heavy water in an exhaust gas containing deuterium gas in a semiconductor manufacturing process.
Absstract of: US2024239650A1
A thermolysis based hydrogen and oxygen generator and a method of generating hydrogen and oxygen can include a high pressure pump for pumping fluid, such fluid provided for separating into at least hydrogen molecules and oxygen molecules, a high pressure, high temperature spherical vessel coupled to the high pressure pump, and one or more lasers for focusing energy in a predetermined direction towards the spherical vessel, where the one or more lasers creates heat energy and pressure in the spherical vessel sufficiently to cause the fluid in the spherical vessel to separate into hydrogen molecules and oxygen molecules. The generator can further include a power supply for powering the one or lasers and the high pressure pump, a hydrogen storage tank coupled to the spherical vessel for storing the hydrogen molecules, and an oxygen storage tank coupled to the spherical vessel for storing the oxygen molecules.
Absstract of: US2024239651A1
An industrial, commercial and residential Hydrogen production and conversion system is provided. The Hydrogen production and conversion system includes a reactor vessel for facilitating the production of Hydrogen gas and Oxygen gas, a separator vessel for separating the produced Hydrogen and Oxygen gas, a Hydrogen receiver vessel for receiving the separated Hydrogen gas, a compressor for compressing the received Hydrogen gas and a Hydrogen storage vessel for storing the compressed Hydrogen gas and providing the stored Hydrogen gas to one or more power systems to be used as fuel.
Absstract of: US2024239654A1
The present invention is generally directed to the efficient production of low-carbon methanol, ethanol or mixtures of methanol and ethanol from captured CO2 and renewable H2 at a generation site. The H2 is generated from water using an electrolyzer powered by renewable electricity, or from any other means of low-carbon H2 production. An improved catalyst and process is described that efficiently converts H2 and CO2 mixture to syngas in a one-step process, and alcohols, such as methanol and ethanol, are produced from the syngas in a second step. The liquid methanol and ethanol, which are excellent H2 carriers, are transported to a production site, where another improved catalyst and process efficiently converts them to syngas. The syngas can then be used at the production site for the synthesis of low carbon fuels and chemicals, or to produce purified low carbon H2. The low carbon H2 can be used at the production site for the synthesis of low-carbon chemical products or compressed for transportation use.
Absstract of: US2024243318A1
A fuel cell system arranged for the conversion of pure hydrogen comprising a) at least one fuel cell comprising an anode, a cathode and an electrolyte, and arranged for an internal reformation of methane, b) a fuel conduit connecting a fuel conduit inlet with an anode inlet, c) an anode exhaust conduit connecting an anode outlet and a methanation unit capable of producing methane from anode exhaust, and d) a methanation unit exhaust conduit connecting a methanation unit exit and the fuel conduit, and e) a water removal and/or water condenser unit coupled to the methanation unit exhaust conduit, wherein the fuel introduced into an inlet of the fuel conduit is pure hydrogen, and the amount of methane produced in the methanation unit is equal to the amount of methane reformed inside of the fuel cell so that the content of methane cycling through the fuel cell system is constant.
Absstract of: AU2022357365A1
A system for producing hydrogen from water by a thermochemical cycle, for example the sulphuriodine cycle, comprises a reactor having reaction zones for implementing the reactions of the cycle. The reaction zones are interconnected by a fluid circuit and the reactor is configured to direct reaction product(s) from any reaction zone to another reaction zone to provide reactant(s) for the other reaction zone. Fluid is recirculated around the fluid circuit so that reaction product(s) from downstream reaction zone(s) are reused as reactant(s) for upstream reaction zone(s). Heat generated in reaction zone(s) is also reused in other reaction zone(s). The resulting system is energy efficient as well as being efficient in its use of reactants.
Absstract of: AU2022354593A1
A system for producing synthetic fuel comprises a reactor having a first reaction zone for implementing a first reaction in which carbon dioxide and hydrogen react to produce carbon monoxide and water, and at least one other reaction zone for implementing a second reaction in which carbon monoxide and hydrogen react to produce a fuel precursor, and a third reaction involving synthesizing fuel from said fuel precursor. The reaction zones are inter-connected in series by a fluid circuit is configured to circulate and recirculate fluid around the reactor to facilitate recycling of reactants and heat energy. The system facilitates low-energy, cost-efficient production of liquid e-fuels.
Absstract of: WO2024149723A1
Subject of the invention is a method for producing fuel which comprises C8+ aromatics and C8+ hydrocarbons, the method comprising the steps: (i) converting a feed mixture comprising CO2 with H2 into a mixture comprising CO, C6+ aromatics and unsaturated C2-C6 hydrocarbons, wherein the CO2 is at least partially converted into methanol using a metal oxide-based catalyst and wherein the methanol is at least partially converted into C6+ aromatics using a zeolite-based catalyst, wherein said unsaturated C2-C6 hydrocarbons are subsequently at least partially converted into unsaturated C8+ hydrocarbons by oligomerisation, and (ii) alkylating C6+ aromatics from step (i) at least partially with unsaturated C2-C6 hydrocarbons from step (i) into C8+ aromatics using an acid catalyst different from the zeolite-based catalyst used in step (i).
Absstract of: WO2023131732A1
The present invention relates to an installation having a pressurised tank acting as a reactor (2), into which water, ferrosilicon, sodium hydroxide and pressurised air are introduced, the latter by means of a compressor (1) and a pipe assisted by a solenoid valve and/or shut-off valve (13), provided with a non-return valve (6) and a flow/pressure regulator (17). The reactor (2) includes an upper outlet which is connected to a pipe in which a second non-return valve (7) is installed, and which feeds a pressurised wash tank (3). The upper part includes a pipe with a third non-return valve (8) which feeds a pressurised hydrogen storage tank (4) that is provided with an outlet pipe (9), assisted by a solenoid valve and/or shut-off valve (14), a non-return valve (16) and a flow/pressure regulator (18).
Absstract of: US2023136397A1
Disclosed are membrane electrode assemblies having a cathode layer comprising a carbon oxide reduction catalyst that promotes reduction of a carbon oxide; an anode layer comprising a catalyst that promotes oxidation of a water; a polymer electrolyte membrane (PEM) layer disposed between, and in contact with, the cathode layer and the anode layer; and a salt having a concentration of at least about 10 uM in at least a portion of the MEA.
Nº publicación: EP4399409A1 17/07/2024
Applicant:
SIEMENS GAMESA RENEWABLE ENERGY AS [DK]
Siemens Gamesa Renewable Energy A/S
Absstract of: TW202325982A
A wind turbine (1) comprising a generator (2), a base (5), a nacelle (6), a tower (4) having a first end mounted to the base (5) and a second end supporting the nacelle (6), an electrolytic unit (3) electrically powered by the generator (2) to produce hydrogen (6) from an input fluid (9), in particular water, and a fluid supply assembly (21) for supplying the input fluid (9) from a fluid inlet (23) arranged below a water level (31) to the electrolytic unit (3) arranged above the water level (31),wherein the hydrogen (6) produced can be taken out of the wind turbine (1) by the hydrogen output (15).
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