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749
resultados
Última actualización
19/10/2024 [06:59:00]
Resultados 25 a 50 de 749
Resumen de: EP4446474A1
An internal manifold-type bipolar electrolysis element structured from an anode, a cathode, a partition wall, and an outer frame, and having a manifold, wherein at least a part of the surface of the manifold is covered with a manifold covering member, and the manifold covering member is integrated with a gasket.
Resumen de: US2024318323A1
A green hydrogen production system and method uses an offshore platform, an offshore renewable energy source, a submerged water desalination apparatus and a water electrolysis apparatus to produce hydrogen and oxygen using power from the renewable energy source and desalinated water from the submerged water desalination apparatus. The system and method enable green hydrogen production with reduced energy use or capital cost compared to onshore systems and systems that do not employ a submerged water desalination apparatus.
Resumen de: AU2022407314A1
Methods for producing hydrogen from ammonia are described. The methods involve the use of a two-stage hydrogen PSA configuration. The effluent stream from the ammonia cracking reaction zone is sent to the first hydrogen PSA unit where it is separated into a high purity, high-pressure hydrogen stream and a low-pressure tail gas stream. The high-pressure hydrogen stream can be recovered. The low-pressure tail gas stream is compressed and sent to the second hydrogen PSA unit where it is separated into a second high-pressure stream and a second low-pressure tail gas stream. The second high-pressure hydrogen stream can be recycled to the first hydrogen PSA unit for further separation.
Resumen de: EP4446302A1
A Process for making vinyl acetate, comprising the steps:(a) providing hydrogen with a deuterium content below 90 ppm, based on the total hydrogen content, by water electrolysis using electrical power that is generated at least in part from non-fossil, renewable resources;(b) providing carbon dioxide;(c) reacting hydrogen and carbon dioxide in the presence of a catalyst to form methanol with a deuterium content below 90 ppm, based on the total hydrogen content;(d) reacting methanol from step (c) to form ethylene; and(e) reacting methanol from step (c) with carbon monoxide to form acetic acid; and/or(f1) reacting part of the ethylene from step (d) with oxygen and water to give acetaldehyde;(f2) reacting acetaldehyde from step (f1) with oxygen to give acetic acid;(g) reacting acetic acid from step (e) and/or step (f1) with ethylene from step (d) to give vinyl acetate.
Resumen de: EP4446465A1
The invention is directed to a process for electrolyzing water in an electrolysis device, wherein said electrolysis device comprises an anode comprising nickel, a cathode, and a liquid alkaline electrolyte comprising iron in a concentration in the range of 0.01 to 500 ppm, wherein said process comprises intermittent electrolysis which comprises alternatingly an oxygen evolution reaction (OER) period of applying a overpotential such that an oxygen evolution reaction takes place, and a rejuvenating period of applying a rejuvenation potential that is lower than said overpotential.
Resumen de: EP4446471A1
An electrolysis cell for electrolyzing water into hydrogen and oxygen. The electrolysis cell includes a polymer electrolyte membrane (PEM), a porous transport layer (PTL), and an anode catalyst layer. The PTL includes a PTL surface facing the PEM and including a PTL surface morphology. The anode catalyst layer is deposited on the PTL surface morphology to form a porous transport electrode (PTE) on the PTL surface including contact regions between the PEM and the PTL. The PTL includes noncontact regions between the contact regions along the PTL surface morphology. The noncontact regions are spaced apart from the PEM.
Resumen de: EP4446473A1
An electrolysis cell for electrolyzing water into hydrogen and oxygen. The electrolysis cell includes a current collector, a porous transport layer (PTL), and a PTL coating. The current collector may include a flow field plate having lands and channels collectively forming a flow field. The porous transport layer (PTL) includes a PTL surface facing the current collector and including a PTL surface morphology. The PTL coating is deposited on the PTL surface morphology to form contact regions between the flow field plate and the PTL. The PTL includes noncontact regions between the contact regions along the PTL surface morphology. The noncontact regions are spaced apart from the flow field plate.
Resumen de: EP4446472A1
An electrolysis cell for electrolyzing water into hydrogen and oxygen. The electrolysis cell includes a polymer electrolyte membrane (PEM), a porous transport layer (PTL), and an anode catalyst layer. The PTL includes a PTL surface facing the PEM and including a PTL surface morphology. The anode catalyst layer is deposited on the PTL surface morphology to form a porous transport electrode (PTE) including a PTE surface morphology. An ionomer and/or inert filler material may be infiltrated into the surface pores of the PTL and/or PTE.
Resumen de: CN118434920A
An electrolytic cell for alkaline water electrolysis includes a laminated structure in which a plurality of diaphragm elements, a plurality of cathode chamber assemblies, and a plurality of anode chamber assemblies are repeatedly arranged between an anode terminal assembly and a cathode terminal assembly. Each electrode chamber assembly is provided with an anode/cathode liquid supply circulation part, an anode/cathode liquid/gas recovery circulation part, a corresponding electrode liquid supply branch flow path and a corresponding electrode liquid/gas recovery branch flow path. All or parts of the surfaces of the flange parts of the electrode chamber assemblies facing the electrode liquid supply circulation parts, the surfaces facing the electrode liquid/gas recovery circulation parts, the surfaces facing the electrode liquid supply branch flow paths, and the surfaces facing the electrode liquid/gas recovery branch flow paths are covered with an electrically insulating resin material.
Resumen de: DK202300238A1
Method for generating and treating a two-phase outflow from one or more pressurised electrolyser stacks which are adapted to electrolyse water into hydrogen and oxygen, whereby a pump supplies a catholytic fluid flow from one first gas liquid gravitational separator vessel to the electrolyser stacks and whereby a further pump supplies an anolytic fluid flow from one second gas liquid gravitational separator vessel to the electrolyser stacks, and whereby at least one cyclone type gas liquid separator receives combined outflows from the catholytic chambers and/or receives combined outflows from anolytic chambers respectively inside corresponding gravitational gas liquid separator vessel whereby further, the at least one cyclone type gas liquid separator separates the gas from the liquid along a generally horizontal cyclonic rotation axis inside the gas liquid gravitational separator vessel. An electrolyser system is also provided.
Resumen de: WO2024204595A1
The present invention addresses the problem of providing a steam electrolysis device and a steam electrolysis method that achieve high energy efficiency. The present invention relates to a steam electrolysis device and a steam electrolysis method. The steam electrolysis device is provided with an anode electrode chamber, a cathode electrode chamber, and an ion conductor disposed between the electrode chambers, wherein steam more than twice a hydrogen generation amount is supplied to at least one selected from the anode electrode chamber and the cathode electrode chamber, and 50% or less of the charged steam is electrolyzed.
Resumen de: CN118043498A
This alkaline water electrolysis tank is provided with: a first frame that defines an anode chamber and that is provided with a conductive first partition wall and a first flange section having a first gasket contact surface; a second frame body, which is provided with a conductive second partition wall and a second flange part, and which defines the cathode chamber; a diaphragm that is disposed between the first frame and the second frame and that partitions the anode chamber and the cathode chamber; a gasket that is sandwiched between the first flange section and the second flange section and that holds the diaphragm; an anode disposed in the anode chamber; and a cathode disposed in the cathode chamber, the gasket is provided with a first gasket element and a second gasket element, the first frame body is provided with a first nickel plating layer which is exposed on the first gasket contact surface and has a thickness of 27 mu m or more, and the surface roughness of the first gasket contact surface is 10 mu m or less as an arithmetic average roughness Ra.
Resumen de: US2024339951A1
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: US2024339647A1
An electrochemical system includes a plurality of electrochemical modules, a ventilation assembly including a central duct connected to the plurality of electrochemical modules and configured to ventilate exhaust gas from the plurality of electrochemical modules, and a system component configured to transmit a fluid containing hydrogen gas, connected to the plurality of electrochemical modules and located inside the central duct.
Resumen de: US2024339840A1
An eco-friendly energy storage system for frequency regulation, includes: a water electrolysis apparatus and a hydrogen storage apparatus for performing discharge of surplus power for a power system; a fuel cell power generation apparatus for performing charge of deficiency power; and a control device for controlling charge and discharge by detecting a system frequency for controlling charge and discharge of the system, comparing the system frequency with a frequency reference value, and reflecting a frequency regulation amount calculated on the basis of a hydrogen storage amount of the system.
Resumen de: AU2023285309A1
The present invention relates to a framing structure for an electrolyser subject to internal pressure, able to withstand corrosive environments and radial pressure forces. The present invention also relates to an electrolytic cell and electrolyser equipped with said framing structure, as well as its use in high-pressure water electrolysis applications.
Resumen de: AU2024200353A1
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), 5 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 10 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: AU2024200352A1
An electrode structure includes an electrolyte membrane, a catalyst layer (61), a porous layer (62), and an ionomer layer (63). The catalyst layer (61) is formed on a 5 surface of the electrolyte membrane. The porous layer (62) is stacked on an external side of the catalyst layer (61). The ionomer layer (63) is interposed between the catalyst layer (61) and the porous layer (62). Thus, it is possible to reduce electrical contact resistance between the catalyst layer (61) and the porous layer (62).
Resumen de: AU2024201443A1
A carbon dioxide electrolytic device of an embodiment includes: an electrolysis cell that includes a cathode, an anode, a cathode flow path, an anode flow path, and a separator; a carbon dioxide supply unit; an electrolytic solution supply unit; an electrolytic 5 solution external flow path including a first pipe connecting the electrolytic solution supply unit to a first opening provided on one end side of the anode flow path, a second pipe connected to a second opening provided on the other end side of the anode flow path, and a third pipe connecting the electrolytic solution supply unit to the second opening of the anode flow path; and an electrolytic solution switching mechanism switching between a 10 first flow in which the electrolytic solution flows from the first opening toward the second opening and a second flow in which the electrolytic solution flows from the second opening toward the first opening.
Resumen de: AU2023266684A1
The invention relates to a method for producing methanol via a synthesis gas produced by combining electrolysis of a water feedstock for producing a stream comprising hydrogen, and electrolysis of carbon dioxide rich stream for producing a stream comprising CO and CO
Resumen de: WO2024207689A1
The present invention relates to a hydrogen production system and a control method therefor. The method comprises: determining operation parameter information of the hydrogen production system according to output information of a new energy power generation device; and, according to the operation parameter information and operation demand information of the hydrogen production system, selecting a switching-on mode and a switching-off mode from amongst a plurality of preset modes of hydrogen production units of the hydrogen production system. On the basis of the output information of the new energy power generation device and the operation conditions of the hydrogen production system, the present invention performs selection of switching-on and switching-off of the hydrogen production units, thus improving the operation efficiency of the hydrogen production system.
Resumen de: US2024043269A1
A system and a method for producing hydrogen and electrical power from an aqueous ammonia solution are provided. An exemplary system includes a distillation unit to produce ammonia gas from the aqueous ammonia solution, a compression unit to boost the pressure of the ammonia gas, a membrane separator to catalytically convert the ammonia gas to nitrogen and hydrogen and remove the hydrogen as a permeate, and a micro turbine to combust a retentate to generate energy.
Resumen de: AU2022366739A1
Described is a long-lasting, heavy-duty ion exchange membrane comprising a fluorinated ionomer, a Ce
Resumen de: CN118159688A
The invention provides an electrolysis device, an electrolysis system and an electrolysis method adopting alternating current induction energy supply. The electrolysis device comprises at least one group of magnetic circuits and an electrolytic tank, wherein the magnetic circuit comprises a magnetic core wound with an electromagnetic coil, and the magnetic core is arranged outside the electrolytic tank; the magnetic circuit is used for generating a rotating magnetic field surrounding the electrolytic tank by using an alternating current power supply, and the rotating magnetic field acts on an electrolyte in the electrolytic tank to generate an induced direct current so as to electrolyze the electrolyte; according to the electrolysis device, the electrolytic tank generates induced direct current directly through alternating current, so that the alternating current and direct current conversion link is reduced, and the energy loss caused by energy conversion is reduced.
Nº publicación: JP2024141485A 10/10/2024
Solicitante:
本田技研工業株式会社
Resumen de: US2024328017A1
A controller of an electrolysis system in the present disclosure changes a current value to be specified for a first power supply device according to the pressure detected by a first pressure sensor provided on an oxygen supply passage between a pressure control valve and a water electrolysis stack.
BOPI
Sede Electrónica
