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Resumen de: WO2024208614A1
- 27 - Method for use in controlling operation of a hydrogen production plant ABSTRACT The invention provides computer-implemented method for use in controlling operation of a hydrogen production plant, the method comprising determining a maximum available amount of energy of a predetermined energy category in a current time interval; determining a target minimum amount of the energy of the predetermined energy category to be used for hydrogen production in the current time interval; and determining hydrogen setpoints for the current time interval using the maximum available amount and the target minimum amount as constraints. Fig. 1b
Resumen de: WO2024202429A1
This hydrogen production system comprises: a solid oxide electrolysis cell (SOEC) that electrolyzes water vapor; a water vapor generation device that heats supply water to generate water vapor; and a combustor that partially burns hydrogen included in water vapor discharged from a hydrogen electrode of the SOEC. The water vapor generation device is configured such that the supply water is at least partially heated through heat exchange between at least part of the supply water and gas including combustion gas generated in the combustor so as to produce at least part of the water vapor.
Resumen de: WO2024208974A1
A device (200; 300) for providing electrical energy and/or an energy carrier, such as hydrogen, comprises at least one cell unit (10; 110). The cell unit (10; 110) comprises an iron based electron storage electrode (12; 112) and an air electrode (20; 120). Upon charging iron compounds are reduced to iron metal in the iron based electrode. Upon overcharging hydrogen is generated that can be stored in a storage for later use. At the air electrode oxygen is generated upon charging and overcharging. The device may have a compact design and relatively high volumetric storage capacity. An energy system based on this device in combination with an external power source and/or an electricity grid is also described. Operation of the device comprises supplying electrical power from an external power source to the cell unit, thereby providing an electrically charged iron based electrode and/or hydrogen and/or oxygen stored in a storage.
Resumen de: WO2024211604A2
A method and system for use therein for providing O2 and H2 gases directly to the soil proximal to the roots of plants, to harvested produce of plants, and to animals drinking supply via electrolysis is described. The method employs at least one electrolyzer disposed adjacent to, or inline with, the irrigation waterline of the plant grow operation or to the water supply waterline of the animals to facilitate the introduction of the gases to the soil or animals. A power source is used to provide the electrolytic conversion, and gases remain in a micro-bubbled form to flow through the waterline more easily to the plants where they are needed the most. A venturi may be used to channel the dissolved gases in the waterline from the electrolyzer in embodiments having an external unit. The preferred inline embodiment electrolyzes the water without need of a venturi to reintroduce the gases to the waterline.
Resumen de: WO2024211873A1
Herein disclosed is receiving a request for an amount of electric energy, generating hydrogen by dissociating hydrogen from water, storing the dissociated hydrogen, determining if sufficient hydrogen has been stored to generate the requested amount of electric energy, refraining from recombining the hydrogen with oxygen until sufficient hydrogen has been stored and in response to determining sufficient hydrogen has been stored, activating hydrogen recombination with oxygen to generate the requested amount of electric energy. The hydrogen may be dissociated using an electrolyzer. The electrolyzer may be powered by a battery or a photovoltaic array. An implementation may selectively charge the battery or power the electrolyzer using the photovoltaic array. Steam pressurized from recombining the dissociated hydrogen with oxygen may be used to drive a turbine generator to produce the requested amount of electric energy. Condensed water from the steam may be recycled, to the electrolyzer for reuse in hydrogen dissociation.
Resumen de: WO2024208792A1
A methanol plant and a process for the production of methanol is provided. A hydrogen recovery section receives off-gas stream from the methanol synthesis section and outputs a hydrogen-rich stream, which is recycled upstream the methanol synthesis section.
Resumen de: AU2023391354A1
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.
Resumen de: US2024337035A1
The following disclosure relates to methods of identifying defects (e.g., short circuits) in a membrane of an electrolytic cell. The following disclosure further relates to methods of repairing such a defect in the membrane of the electrolytic cell, particularly without having to disassemble the membrane from adjacent components of the electrolytic cell.
Resumen de: US2024337036A1
The invention relates to a method for operating an electrolysis plant for producing hydrogen and oxygen as product gases, wherein the hydrogen product gas, which additionally contains oxygen as a foreign gas, is fed from an electrolyser to a downstream gas separator, wherein when a predefined limit value for the oxygen concentration in the hydrogen product gas is exceeded, hydrogen having a low oxygen concentration is fed to the gas separator such that the oxygen concentration in the hydrogen product gas is lowered. The invention further relates to a corresponding electrolysis plant.
Resumen de: US2024336986A1
A system for reducing ore includes a hydrogen supply unit configured to supply hydrogen, a furnace configured to reduce the ore using the supplied hydrogen, and a hydrogen recovery unit configured to recover hydrogen from an exhaust gas that is exhausted from the furnace.
Resumen de: CN118202087A
The electrolyzer system includes one or more electrolyzer cells, each electrolyzer cell including a first half-cell having a first electrode and a second half-cell having a second electrode; and a controller that controls the application of a current through the one or more electrolyzer units; wherein the controller is configured to dynamically set the current density over a current density range from about 150 mA/cm < 2 > to about 3000 mA/cm < 2 >, and wherein the controller is configured to set the current density to a first value when a first condition is satisfied, and to set the current density to a second value when a second condition is satisfied.
Resumen de: WO2024207586A1
Disclosed in the present invention are a passivation method for an InN nanopillar based on a p-GaAs substrate, a passivation end-product composite structure, and use thereof. The passivation end-product composite structure comprises the p-GaAs substrate and an In(As)N nanobelt grown on the p-GaAs substrate. According to the electrochemical anodic passivation method for the InN nanopillar on the p-GaAs substrate provided by the present invention, an In atomic cluster in the InN nanopillar can be efficiently and simply passivated. Meanwhile, a p-GaAs/In(As)N heterostructure formed by the passivation end-product composite structure meets a hydrogen evolution potential, increases an internal Fermi barrier, and enhances a photon-generated carrier separation and transfer efficiency, such that the photoelectric conversion efficiency can be remarkably improved. The p-GaAs/In(As)N heterostructure of the present invention has a relatively large specific surface area, has relatively strong absorption of sunlight, and is suitable for photoelectrolytic hydrogen production from water.
Resumen de: WO2023100148A1
The present invention describes a process for stabilizing the electrical network, by combining energy storage and generation steps, and for producing ammonia.
Resumen de: WO2023099877A2
An electrolyser (200) comprising: a cathode structure comprising a first PCB plate (202) and an electrically conductive substrate (220); an anode structure comprising a second PCB plate (204) and an electrically conductive substrate (220); an anion exchange membrane (218) located between the cathode structure (202) and the anode structure (204); two transport layers, (214, 216), one transport layer (216) disposed between the anode structure (204) and the anion exchange membrane (218) and one transport layer (214) disposed between the cathode structure (202) and the anion exchange membrane (218); and at least one fluid path to supply an electrolyte to the electrolyser (200).
Resumen de: CN118354836A
Hydrogen recovery systems and methods. Aspects of the invention relate to a hydrogen recovery system (1) for extracting hydrogen from a process gas. The hydrogen recovery system (1) may comprise an electrochemical pump (11) for extracting at least some of the hydrogen present in the process gas. The electrochemical pump (11) has an anode compartment (13) with at least one anode (14), a cathode compartment (15) with at least one cathode (16), and a diaphragm (17) arranged between the anode compartment (13) and the cathode compartment (15). A controller (59) is provided for controlling the current supplied to the electrochemical pump (11). The anode compartment (13) has an anode compartment inlet (23) for introducing the process gas into the anode compartment (13); and an anode compartment outlet (25) for discharging off-gas from the anode compartment (13). The cathode compartment (15) has a cathode compartment outlet (27) for discharging hydrogen extracted from the process gas.
Resumen de: EP4442862A1
An electrolyzer system and an end plate assembl (110) are provided with one or more fluid-isolating inserts (400). The electrolyzer system includes a stack of electrolyzer cells, a current collector, an end plate assembly, and an isolation plate positioned between the end plate assembly (1109 and current collector. The end plate assembly (110) includes at least one fluid channel to allow fluid to pass therethrough, where the fluid channel(s) is in fluid communication with at least one fluid channel through the current collector and isolation plate. The end plate assembly (110) includes an end plate (120) and an fluid-isolating insert (400) residing, at least in part, within a pocket in the end plate (110). The fluid-isolating insert (400) includes at least one electrically-isolating fluid channel (401) that defines, at least in part, the fluid channel(s) of the end plate assembly (110), where the fluid-isolating insert (400) increases an effective length of a fluid conduction path between the current collector and the end plate (110).
Resumen de: EP4442861A1
An electrode structure includes an electrolyte membrane (51), a plurality of anode catalyst particles (611) located on an anode side of the electrolyte membrane (51), a plurality of cathode catalyst particles located on a cathode side of the electrolyte membrane, and a recombination layer (80) located between the electrolyte membrane (51) and the anode catalyst particles (611). The anode catalyst particles are used for electrolyzing water into a hydrogen ion, oxygen, and an electron. The cathode catalyst particles are used for combining the hydrogen ion and the electron with each other to produce hydrogen. If hydrogen generated on the cathode side of the electrolyte membrane (51) permeates into the anode side across the electrolyte membrane (51), the hydrogen having permeated is combined with oxygen to turn into water again in the recombination layer (80). This makes it possible to suppress mixture of hydrogen into oxygen to be output from the anode side.
Resumen de: EP4442860A1
The invention provides computer-implemented method for use in controlling operation of a hydrogen production plant, the method comprising determining a maximum available amount of energy of a predetermined energy category in a current time interval; determining a target minimum amount of the energy of the predetermined energy category to be used for hydrogen production in the current time interval; and determining hydrogen setpoints for the current time interval using the maximum available amount and the target minimum amount as constraints.
Resumen de: EP4442863A1
A compression device includes: an electrochemical cell that includes an anode and a cathode that sandwich an electrolyte membrane; a voltage application unit that applies a voltage between the anode and the cathode; and a metal plate that is exposed to compressed hydrogen generated at the cathode and that is resistant to hydrogen embrittlement. The metal plate includes a first terminal connected to the voltage application unit. The first terminal is directly connected to a second terminal that has a lower resistance than the first terminal. The second terminal is directly connected to the voltage application unit, and the first terminal is connected to the voltage application unit via the second terminal.
Resumen de: WO2023100172A1
A dome-shaped bipolar plate.
Resumen de: EP4443051A1
The present disclosure provides a process for denitrogenation combustion and CO<sub>2</sub> capture and utilization in a gas boiler. A system required for the process comprises a natural gas supply device, a hydrogen production device by water electrolysis, an oxygen preparation device, a nitrogen compressor, a carbon-based denitrogenation gas mixer, a gas heat exchanger, a gas boiler, a chimney, a flue gas dehydration device, a blower, a CO<sub>2</sub> recovery device and a CO<sub>2</sub> compressor. The process has excellent performance in increasing production, energy conservation, and emission reduction, and can reduce the unit consumption of natural gas per ton of steam by more than 10%, increase production by more than 10%, and reduce flue gas emissions, thereby realizing ultra-low emissions of NOx.
Resumen de: DK202300198A1
Enclosure adapted for a hydrogen and oxygen generating apparatus arranged in a movable has an interior and an interior surface and an exterior surface whereby the hydrogen and oxygen generating apparatus comprises at least one electrolyser stack adapted for electrolysing water to hydrogen product gas and oxygen product gas and accompanying gas and electrolyte handling equipment. The exterior surface of the enclosure comprises at least a heat insulating, flexible polymer cover element which is attached to a metal frame.
Resumen de: CN118382942A
Disclosed is a metal fluoride functionalized proton exchange solid support comprising: a proton exchange solid support comprising a substituent comprising an oxygen atom; and a metal fluoride group comprising a polyvalent metal atom covalently bonded to an oxygen atom contained in the substituent; wherein the metal atom has a negative formal charge.
Resumen de: AU2023225179A1
An air separation system comprising an air separation unit (10) and at least one solid oxide electrolyser cell (36), the air separation unit comprising a source gas infeed, the at least one solid oxide electrolyser cell (36) comprising an anode (48), a cathode (50) and an electrolyte (52), a steam input (42) and an oxygen rich gas output (56), wherein the oxygen rich gas output (56) connects to the source gas infeed (62) of the air separation unit (10).
Nº publicación: JP2024536827A 08/10/2024
Solicitante:
ハンワソリューションズコーポレイション
Resumen de: CN117999122A
The present invention relates to an oxidation catalyst for water electrolysis of an anion exchange membrane, which exhibits excellent catalytic activity, conductivity and a large surface area, a method for preparing the same, and an anode for water electrolysis of an anion exchange membrane and an anion exchange membrane water electrolysis system each comprising the oxidation catalyst. The oxidation catalyst for water electrolysis of an anion exchange membrane according to the present invention comprises a spinel-based oxide, and is prepared by precisely controlling the use of a complexing agent and the pH value using a coprecipitation method, whereby the oxidation catalyst can be reduced in catalyst particle size to facilitate high-viscosity uniform dispersion and has a nano-sized sheet structure, this makes it possible to uniformly coat the ionomer between the sheets and to form a porous structure, thereby enlarging the surface area and achieving excellent catalytic activity.
BOPI
Sede Electrónica
