Resumen de: WO2023091026A1

A system for producing hydrogen and oxygen through electrolysis using power from a geothermal power plant for production of electricity. The geothermal power plant is located proximity to the electrolysis plant. The geothermal power plant provides the said electrolysis plant with electricity, water, and steam. The plants Are located over wells offshore and built on former offshore oil and gas production platforms.

Resumen de: US2023159357A1

The ParaDice Process System is the interconnection of a renewable power source to power an ocean water electrolysis apparatus comprising a water container, an electrolysis cell, optionally a precious metal harvesting probe, a filtration system, and a settlement pond wherein the hydrogen generated as a result of electrolysis is supplied to either a hydrogen combustion engine or hydrogen turbine to power an electricity generator thereby creating a renewable zero carbon emission electric power generation system. The hydrogen gas is collected by a chlorine scrubber and transferred to either a hydrogen combustion engine or a hydrogen turbine. Where a hydrogen turbine is embodied the waste heat created therein is used to generate electricity and increase the performance of the filtration system and settlement pond.

Resumen de: WO2023088723A1

The invention relates to the field of hydrogen production plant, particularly to a method for producing hydrogen in the hydrogen production plant by using two types of electrolysis systems. The first electrolysis system (ES1) comprises an active DC module (Ma) and at least one first-type electrolyzer (E1), which is configured for producing a first hydrogen output (HO1) by using a first power from the active DC module (Ma), and the second electrolysis system (ES2), comprising a passive DC module (Mp) and at least one second-type electrolyzer (E2), which is configured for producing a second hydrogen output (HO2) by using a second power from the passive DC module (Mp). The method comprises the steps of: in a ramp-up phase, increasing the first hydrogen output (HO1) of the first electrolysis system (ES1); and when the first hydrogen output (HO1) of the first electrolysis system (ES1) crosses a first predefined hydrogen output threshold (HOthres1), switching on the second electrolysis system (ES2), and decreasing the first hydrogen output (HO1) of the first electrolysis system (ES1) to the first predefined hydrogen output threshold (HOthres1) minus the second hydrogen output (HO2), so that an overall hydrogen output (HOtotal) of the hydrogen production plant (HPP) is a sum of the first hydrogen output (HO1) and the second hydrogen output (HO2).

Resumen de: WO2023088734A1

The present invention relates to an electrochemical cell (0) comprising an anode (1), a cathode (2) and an anion-conducting membrane (3) located between the anode (1) and the cathode (2). The invention also relates to the use of the cell (0) in a method for preparing hydrogen (H2) and oxygen (O2) by electrochemically splitting water (H2O). Moreover, the invention relates to an electrolyser (6, 8) comprising a multiplicity of the cells (0), and to a method for producing the electrolyser (6, 8). The aim of the invention is to provide an electrochemical cell (0) by means of which anion-exchange-membrane-based water splitting can be carried out on an industrial scale. The aim is also for the cell to be inexpensive in terms of production and to allow for the energy-efficient preparation of hydrogen and oxygen. The aim is achieved in that at least part of the anode is in the form of a first textile fabric comprising catalytically active textile line structures, and in that the first textile fabric directly contacts the membrane.

Resumen de: US2023159838A1

The present invention discloses a single stage energy efficient process for production of hydrogen enriched/mixed gas at low temperature. More particularly, the present invention discloses a single stage energy efficient process for production of hydrogen enriched compressed natural gas (CNG) or LPG or biogas at low temperature.

Resumen de: US2023160074A1

An apparatus is provided for generating hydrogen and oxygen through alkaline electrolysis. A process is also provided for generating hydrogen and oxygen through alkaline electrolysis using the apparatus. The apparatus and process are advantageously applied in apparatuses and systems for the accumulation of hydrogen using demineralized water and electric energy, also coming from renewable sources.

Resumen de: US2023160079A1

-- An electrolysis cell unit capable of efficiently electrolyzing water and carbon dioxide is obtained. An electrolysis cell unit includes at least an electrolysis cell in which an electrode layer and a counter electrode layer are formed with an electrolyte layer interposed therebetween and a discharge path for discharging hydrogen generated in the electrode layer, in which the electrolysis cell being formed in a thin layer on a support and a reverse water-gas shift reaction unit that generates carbon monoxide using carbon dioxide and the hydrogen by a reverse water-gas shift reaction being provided in at least a portion of the discharge path.--

Resumen de: US2023158459A1

A hydrogen permeable membrane comprises a dense layer of a hydrogen permeable metal having first and second faces. The first face of the dense layer has a rough surface which may be formed for example by electrodeposition of a hydrogen permeable metal such as palladium. One or more co-catalysts are provided on the rough surface. The co-catalysts may comprise thin sputtered layers. The one or more co-catalysts have an area density not exceeding 20 µg per cm2; and/or a majority of the co catalysts are in an outer portion of the rough surface, the outer portion of the rough surface being less than one half of a thickness of the rough surface defined by peaks of the rough surface. The membrane may be used in a cell to facilitate chemical reactions including hydrogenation, dehydrogenation and hydrodeoxygenation reactions.

Resumen de: AU2021352136A1

This invention relates to an arrangement to optimize the production of hydrogen, the arrangement comprising at least a solar energy unit (12) and a wave and/or tidal energy recovery system (2), which are arranged to produce renewable energy, a water purification unit (5) and an electrolysis unit (9), which is arranged to produce hydrogen from pure water produced by the water purification unit (5), and the electrolysis unit (9) and the water purification unit (5) are powered by the renewable energy produced by the solar energy unit (12) and the wave and/or tidal energy recovery system (2). The arrangement comprises a buffer unit (6), into which pure water is supplied from the water purification unit (5) during periods when the production of the renewable energy exceeds the need of energy of the electrolysis unit (9).

Resumen de: AU2021356293A1

Embodiments of the present invention relate to an electrolysis system comprising a hydrogen generating cell; a storage for storing an electrically conducting solution; an input power source configured to provide a direct current (DC) voltage; and a power supply module for supplying power to the at least two electrodes; wherein the power supply module comprises a plurality of power metal-oxide-semiconductor field-effect transistors (MOSFETs), each MOSFET comprising a gate, a source and a drain and wherein the plurality of MOSFETs are electrically connected in parallel such that a current load provided by the input power source is distributed over the plurality of MOSFETs.

Resumen de: WO2023089177A1

A method for producing a synthetic fuel includes extracting carbon dioxide (CO2) from a flow of atmospheric air with a sorbent material to form a recovered carbon dioxide feed stream; extracting hydrogen (H2) from a hydrogen-containing feedstock to produce a hydrogen feed stream; processing the recovered carbon dioxide feed stream in a CO2 reduction reactor to produce a carbon monoxide (CO) stream by applying an electric potential to the CO2 reduction reactor and reducing at least a portion of the recovered carbon dioxide feed stream over a catalyst to form the carbon monoxide stream and an oxygen (O2) stream; and reacting the carbon monoxide stream from the CO2 reduction reactor with the hydrogen feed stream to produce the synthetic fuel.

Resumen de: WO2023088749A2

The present disclosure relates to an electrolysis system (200) for generating hydrogen, the system comprising an electrolyser (202) comprising an electrolyte water inlet, a first gas outlet (204) and a second gas outlet (206), an electrical generator (212) configured to generate electricity (212), preferably for the electrolyser, said electrical generator (212) being connected to the first and/or second gas outlet (204, 206) of the electrolyser and configured to be powered, at least in part, by gas flow provided via the first and/or second gas outlet, the system further comprising an electrolyte pump (214) for supplying the electrolyser (202) with electrolyte water, wherein the electrical generator (212) is a motor -generator comprising a first mode for generating electricity and a second mode for using electricity to drive the electrolyte pump (214).

Resumen de: WO2023087370A1

The present invention provides a carbon dioxide capture method for coupled staged electrolysis/pyrolysis hydrogen production. The method comprises: using an alkaline solution to capture CO2 in a target component and obtain a carbonate solution; enabling the carbonate solution to be subjected to mild electrolysis, obtaining a hydroxide and H2 at a cathode, obtaining bicarbonate and O2/CO2 mixed gas at an anode, and absorbing CO2 from the mixed gas via a small absorption tower then to obtain pure oxygen; recycling the hydroxide to serve as a capture agent; and pyrolyzing the bicarbonate to obtain pure CO2. According to the method for cyclically absorbing/releasing CO2 using the alkaline solution, a technique of capturing a wide concentration range of CO2 can be provided. The alkaline solution is regenerated by means of staged electrolysis/pyrolysis, mild electrolysis is performed by controlling the voltage and current of an electrolysis tank, pure H2 and pure O2 can be respectively obtained in an electrolysis stage, the hydroxide after electrolysis enters the absorption tower to capture CO2 in the target component, the bicarbonate after electrolysis enters a pyrolysis tank to obtain pure CO2.

Resumen de: WO2023087689A1

Provided in the present application is a method for controlling intermittent and fluctuating electrolytic hydrogen production. The method comprises the following steps: acquiring a power generation output power of a new-energy power generation device; comparing the power generation output power with a preset starting power of an electrolytic cell; and controlling an operation state of the electrolytic cell according to a comparison result of the power generation output power and the preset starting power. By means of the method for controlling intermittent and fluctuating electrolytic hydrogen production provided in the present application, an electrolytic hydrogen production system can consume intermittent and fluctuating wind power generation and photovoltaic power generation, and insofar as the safety of a hydrogen production process is ensured, electric energy is preferentially used for hydrogen production, thereby promoting the consumption and utilization of renewable-energy power generation in an off-grid/grid-connected mode.

Resumen de: WO2023089620A1

A hydrogen production plant is described. The plant includes an electrical power grid and an electrical power system including at least one renewable energy (RE) electrical power unit to provide the intermittent electrical power to the electrical power grid. The plant also includes a hydro-pneumatic energy storage and recovery (HPESR) system and a hydrogen production system. The HPESR includes a pressure containment system having an accumulator chamber configured to hold compressed gas and pressurized water and an electrical energy recovery device hydraulically coupled to the accumulator chamber. The HPESR also includes a hydraulic machine and an electrical power generator coupled to the hydraulic machine to convert the rotational mechanical energy of the hydraulic machine into electrical power for the electrical power grid. The HPESR may also include a water pressurization system comprising an electrical pump drawing power from the electrical power grid for pumping a regulated flow of water into the accumulator chamber. The plant may also include a Supervisory Control and Data Acquisition (SCAD A) system to control operation of the HPESR.

Resumen de: EP4183895A1

A hydrogen system includes: a compressor including at least one cell that includes an electrolyte membrane, an anode catalyst layer provided on one principal surface of the electrolyte membrane, a cathode catalyst layer provided on another principal surface of the electrolyte membrane, an anode gas diffusion layer provided on the anode catalyst layer and including a porous sheet containing a metal, and a cathode gas diffusion layer provided on the cathode catalyst layer, and a voltage applicator that apples a voltage between the anode catalyst layer and the cathode catalyst layer, wherein the compressor that generates compressed hydrogen by causing the voltage applicator to apply the voltage to move hydrogen in hydrogen-containing gas supplied to an anode to the cathode via the electrolyte membrane; and a controller that causes the voltage applicator to apply the voltage after shutdown or at startup.

Resumen de: EP4183897A1

The invention relates to the field of hydrogen production plant, particularly to a method for producing hydrogen in the hydrogen production plant by using two types of electrolysis systems. The first electrolysis system (ES1) comprises an active DC module (Ma) and at least one first-type electrolyzer (E1), which is configured for producing a first hydrogen output (HO1) by using a first power from the active DC module (Ma), and the second electrolysis system (ES2), comprising a passive DC module (Mp) and at least one second-type electrolyzer (E2), which is configured for producing a second hydrogen output (HO2) by using a second power from the passive DC module (Mp). The method comprises the steps of:in a ramp-up phase, increasing the first hydrogen output (HO1) of the first electrolysis system (ES1); andwhen the first hydrogen output (HO1) of the first electrolysis system (ES1) crosses a first predefined hydrogen output threshold (HOthres1),switching on the second electrolysis system (ES2), anddecreasing the first hydrogen output (HO1) of the first electrolysis system (ES1) to the first predefined hydrogen output threshold (HOthres1) minus the second hydrogen output (HO2),so that an overall hydrogen output (HOtotal) of the hydrogen production plant (HPP) is a sum of the first hydrogen output (HO1) and the second hydrogen output (HO2).

Resumen de: GB2612985A

The present disclosure relates to an electrolysis system (200) for generating hydrogen, the system comprising an electrolyser (202) comprising an electrolyte water inlet, a first gas outlet (204) and a second gas outlet (206), an electrical generator (212) configured to generate electricity (212), that can be used in the electrolyser. The electrical generator (212) is connected to the first and/or second gas outlet (204, 206) of the electrolyser and configured to be powered, at least in part, by gas flow provided via the first and/or second gas outlet. The system also comprises an electrolyte pump (214) for supplying the electrolyser (202) with electrolyte water. The electrical generator (212) is a motor-generator comprising a first mode for generating electricity and a second mode for using electricity to drive the electrolyte pump (214). A method of recycling energy in an electrolysis system is detailed as well as an electrolysis system where the electrolyte pump (214) for supplying the electrolyser (202) with electrolyte water and where the electrolyser powers, at least in part, the electrolyte pump.

Resumen de: WO2023083661A1

Disclosed herein is a fuel generation system comprising: a Fischer-Tropsch (FT) reactor system; and one or more supply conduits arranged to supply a carbon source and H2 to the FT reactor system; wherein: the carbon source comprises both CO and CO2 with a molar CO2/CO ratio that is at least 0.10; the supply of CO and H2 to the FT reactor system is a supply of syngas; and the FT reactor system is arranged to generate fuel in dependence on the received syngas.

Resumen de: WO2023084148A2

An electrolyzer system comprises electrolyzer elements (101) each comprising an electrolyzer stack (104) constituted by electrolysis cells. Furthermore, each electrolyzer element comprises a water inlet (106), a hydrogen separator tank (107) having a hydrogen outlet (108), an oxygen separator tank (109) having an oxygen outlet (110), and a channel system (111) for conducting electrolyte from the hydrogen separator tank and from the oxygen separator tank to the electrolyzer stack. The electrolyzer stacks of the electrolyzer elements are electrically connected to each other so that direct voltage of the electrolyzer system is a sum of direct voltages of the electrolyzer stacks of two or more of the electrolyzer elements. The water inlets, the hydrogen outlets, and the oxygen outlets of different ones of the electrolyzer elements are galvanically separated from each other. This enables the direct voltage of the electrolyzer system to have a desired value with low stray electric currents.

Resumen de: WO2023082899A1

A hydrogen generator having a self-disinfection function. The hydrogen generator comprises an electrolysis module, a hydrogen water cup, an integrated flow channel device and an automatic channel switching device. The electrolysis module is used for electrolyzing electrolyzed water to generate hydrogen-containing gas. The hydrogen water cup is used for containing a liquid, and the hydrogen water cup is used for injecting the hydrogen-containing gas into the liquid to form a hydrogen-containing liquid. The integrated flow channel device is stacked above the electrolysis module, and comprises a gas intake flow channel, a gas output flow channel and a gas communication flow channel. The automatic channel switching device selectively communicates with the gas intake flow channel, the hydrogen water cup and the gas output flow channel, or selectively communicates with the gas intake flow channel, the gas communication flow channel and the gas output flow channel. The pH value of the electrolyzed water in the electrolysis module is 12-14.

Resumen de: WO2023082449A1

The present invention relates to the technical field of nano materials. In particular, disclosed is a preparation method for a multiphase nano heterojunction material. The method comprises the following steps: providing a substrate loaded with an NiMoO4 precursor; dissolving selenium powder in hydrazine hydrate, adding water or a sodium molybdate aqueous solution, adding the substrate loaded with the NiMoO4 precursor, and performing a reaction at a temperature of 180-200°C; and after the reaction is finished, obtaining the multiphase nano heterojunction material. The present invention also provides a four-phase 1T/2H-MoSe2-H/R-NiSe nano heterojunction material and a three-phase 1T/2H-MoSe2-H-NiSe nano heterojunction material which are prepared by means of the method, and applications of the four-phase 1T/2H-MoSe2-H/R-NiSe nano heterojunction material and the three-phase 1T/2H-MoSe2-H-NiSe nano heterojunction material as electrocatalysts for catalyzing a hydrogen evolution reaction under an alkaline condition. The multiphase nano heterojunction material prepared in the present invention has a relatively large double-layer capacitance value, a relatively large electrochemical active area and relatively small impedance, and the activity and stability of electrocatalytic hydrogen production are greatly improved.

Resumen de: WO2023082363A1

An efficient oxyhydrogen generation device for medical care. The efficient oxyhydrogen generation device mainly comprises a shell (20), an upper cover (1) and a bottom cover (33) which form a main body frame, wherein the shell (20) is composed of a front shell body and a rear shell body, the bottom cover (33) is fastened at the bottom of the shell body, and a formed space is used for accommodating an electrolytic tank (27), a water supply tank (23), a water supply tank upper cover (18) and a secondary water tank (26); the upper cover (1) is fastened on the upper part of the shell body and is provided with an atomization gas circulation part, a supply part used for filling the water supply tank with water, and a control panel (4) used for controlling an electrolytic water hydrogen and oxygen generator to operate; and oxyhydrogen generated by electrolysis of the electrolytic tank (27) sequentially enters the water supply tank (23) and the secondary water tank (26) by means of a gas guide plate (13) and is cleaned, and the cleaned gas is discharged from a gas circulation part.

Resumen de: WO2023084511A1

The invention is directed to a system and method for for producing energy on transportation routes. A road-based Solar System for production of hydrogen and electricity is provided. This is a novel decentralized system for production, storage, energy collection, conversion is disclosed comprising: a. System and method for converting solar energy to electrical energy; b. Means and methods for storing and/or transporting said electrical energy; c. System and for converting said electrical energy to a gas fuel; d. System and method for storing or transporting said gas fuel; The modules and units for converting solar energy to electrical energy are configured to be positioned above, adjacent on or a transportation network, thereby utilising the pre-existing road system and drastically reducing wasteful land use.

Resumen de: WO2023085592A1

The present invention relates to a fluorine- and biphenyl-based branched copolymer polymer electrolyte membrane that is chemically stable because a polymer main chain thereof is composed of carbon single bonds, and has high hydrogen ion conductivity due to a cation exchange functional group introduced at the end of a carbon branch, and to a water electrolysis device and a fuel cell using same.