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: US2023178783A1

An integrated solar hydrogen production module includes a plurality of PV cells supported on a housing of the module. The module has an energy storage system which includes a rechargeable metal ion battery and a flow battery. The metal ion battery is charged by the PV cells. An electrolyser for converting water to gaseous hydrogen and oxygen can be powered directly by the PV cells or by either of the rechargeable metal ion battery and a flow battery. The PV cells, the metal-ion battery, the flow battery membrane and the electrolyser are electrically coupled together and integrated into or carried by the module housing. Electrically powered and solar thermal heaters can be incorporated into or with the module to heat the water in the electrolysers. A pump pressurises the water to facilitate the pressurisation of hydrogen and oxygen produced by the electrolysis.

Resumen de: US2023178779A1

The invention relates to a proton flow reactor for use in storing and releasing energy. In use, a slurry of storage particles in a liquid electrolyte may pass through a first half cell of the proton flow reactor. When the proton flow reactor is in charge mode, protons are bonded or otherwise attracted to the storage particles to form charged storage particles charged with hydrogen, which can hen be stored and/or transported for later use. When the proton flow reactor is in discharge mode, protons are removed from the charged storage particles to fuel an electrochemical reaction, thereby generating electricity. Alternatively, the proton flow reactor in discharge mode can be configured to generate hydrogen gas directly from the in-flowing charged carbon particles.

Resumen de: WO2023100097A2

HYDROGEN RECOVERY SYSTEM AND METHOD Aspects of the present invention relate to hydrogen recovery system (1) for extracting hydrogen from process gases. The hydrogen recovery system (1) may include an electrochemical pump (11) for extracting at least some of the hydrogen occurring in the process gases. The electrochemical pump (11) has an anodic compartment (13) having at least one anode (14), a cathodic compartment (15) having at least one cathode (16), and a membrane (17) disposed between the anodic compartment (13) and the cathodic compartment (15). A controller (59) is provided for controlling the electric current supplied to the electrochemical pump (11). The anodic compartment (13) has an anodic compartment inlet (23) for introducing the process gases into the anodic compartment (13); and an anodic compartment outlet (25) for discharging a waste gas from the anodic compartment (13). The cathodic compartment (15) has a cathodic compartment outlet (27) for discharging hydrogen extracted from the process gases.

Resumen de: WO2023099743A1

The invention relates to a method for operating an ammonia plant (1), wherein: a gas mixture comprising nitrogen, hydrogen and ammonia is cyclically conveyed in a synthesis circuit (3) by a conveying device (2), which has at least one first compressor (13); nitrogen and hydrogen are at least partly converted in a converter (4) to form ammonia; the gas mixture is cooled in a cooling device (5) such that ammonia condenses out of the gas mixture; and hydrogen is provided at least in part by electrolysis (6). Here, the use of fluctuating renewable energies for the provision of hydrogen can be integrated in existing plant designs; for this reason, a master controller (7) is provided and, starting from the amount of hydrogen to be expected, by means of the master controller (7) at least the pressure in the synthesis circuit (3) can be kept approximately constant by means of at least one control loop. For this purpose, the device comprises a first bypass line for bypassing the first compressor (13) and a second bypass line (39) for bypassing the cooling device (5).

Resumen de: WO2023102068A1

An energy storage system and method employ electrolysis to convert excess electrical energy into hydrogen gas and oxygen gas stored in cryogenic flux capacitor units. When needed, the hydrogen and oxygen are liberated from the CFCs and mixed with supercritical CO2 and combusted in a combustion chamber without any nitrogen or air present to form a heated mixture of water and sCO2 that drives a turbine that creates energy that is returned to the power grid. The water in the sCO2 mixture is then extracted and returned to a reservoir for electrolysis when needed again, resulting in a closed system for storing electrical energy.

Resumen de: WO2023100583A1

A compression apparatus of the present application comprises: an electrochemical cell that comprises an anode and a cathode that sandwich an electrolyte film; a voltage application instrument (102) that applies voltage across the anode and the cathode; and a metal plate (11) that is exposed to compressed hydrogen generated at the cathode, and that has hydrogen embrittlement tolerance. The metal plate (11) includes a first terminal (11A). The first terminal (11A) is connected to a second terminal (107) which has a lower resistance, and the second terminal (107) is directly connected to the voltage application instrument (102).

Resumen de: WO2023097943A1

Disclosed in the present invention is a nitrogen-free combustion and CO2 capture and utilization process for a gas-fired boiler. A system required by the process comprises a natural gas supply device, a water electrolysis device for producing hydrogen, an oxygen preparation device, a nitrogen compressor, a carbon-based nitrogen-free gas mixer, a gas heat exchanger, a gas-fired boiler, a chimney, a flue gas dehydration device, an air blower, a CO2 recovery device and a CO2 compressor. The present invention has an excellent performance in the aspects of yield increasing, energy conservation and emission reduction, and can reduce the unit consumption of natural gas per ton of steam by 10% or more, increase the yield by 10% or more, reduce the emission of flue gas, and achieve ultralow emission of NOx.

Resumen de: US2023174026A1

A system for an integrated energy pipeline with vehicle recharging or refueling stations is described. The system generates hydrogen gas from solar powered electrolyzers. The system distributes the hydrogen gas for the fueling of vehicles. The system generates the hydrogen gas locally from solar radiation and water provided to the system.

Resumen de: US2023173471A1

A composite material made of an amorphous (bi)metal sulfide nanoparticles directly linked, through coordinate covalent bonds, to a sulfur-containing polymer and a method of preparation of the composite material. The composite material can also be used as a catalyst for hydrogen production. Finally, a proton-exchange membrane (PEM) electrolyser and a photoelectrochemical cell, can both including the composite material.

Resumen de: US2023175143A1

Herein discussed is an electrochemical reactor comprising a first electrode, wherein the first electrode is liquid when the reactor is in operation; a second electrode having a metallic phase and a ceramic phase, wherein the metallic phase is electronically conductive and wherein the ceramic phase is ionically conductive; and a membrane, wherein the membrane is positioned between the first and second electrodes and is in contact with the first and second electrodes, wherein the membrane is mixed conducting. Also discussed herein is a method of producing hydrogen or carbon monoxide comprising: (a) providing an electrochemical reactor having an anode, a cathode, and a membrane between the anode and the cathode, wherein the anode is liquid when the reactor is in operation and wherein the membrane is mixed conducting; (b) introducing a feedstock to the anode; (c) introducing a stream to the cathode, wherein the stream comprises water or carbon dioxide.

Resumen de: US2023175145A1

The present disclosure provides systems and methods for enhancing production of an aquaculture pond. The systems generally comprise a photo electrolysis array that includes an electrolyzer module and a photovoltaic cell. The electrolyzer module is operable to produce hydrogen and oxygen. A diffuser diffuses the produced oxygen into the aquaculture pond water, thereby increasing the concentration of oxygen in the aquaculture pond.

Resumen de: US2023175144A1

The present disclosure provides systems and methods for improving production of an aquaculture pond farm. The systems generally include an electrolyzer module to produce hydrogen and oxygen, an ammonia synthesizer operable to receive hydrogen produced by the electrolyzer module, and a diffuser to diffuse oxygen produced by the electrolyzer module in the aquaculture pond farm.

Resumen de: US2023175153A1

A method of manufacturing an electrode for water electrolysis having high catalytic activity for a hydrogen evolution reaction by forming a catalyst layer in which molybdenum oxide and a Ni-Mo-based alloy are mixed and an electrode for water electrolysis manufactured thereby are described. The method includes preparing catalyst materials including a solvent, a nickel (Ni) precursor, a molybdenum (Mo) precursor, and sodium citrate, preparing an electrode base material, obtaining a plating solution by dissolving the nickel (Ni) precursor, the molybdenum (Mo) precursor, and the sodium citrate in the solvent, and forming a catalyst layer on the surface of the electrode base material by immersing the electrode base material in the plating solution and applying an electric current.

Resumen de: US2023175147A1

A portable hydrogen-oxygen generator includes a housing having a detachable upper cover and a bottom cover. An electrolytic cell module is arranged in the housing. The electrolytic cell module has a hydrogen generation chamber and an oxygen generation chamber. A cathode electrode plate and an anode electrode plate are respectively arranged in the hydrogen generation chamber and the oxygen generation chamber, and the bottoms of the two generation chambers are communicated for electrolyte circulation. A hydrogen outlet part and an oxygen outlet part detachably arranged on the upper cover and respectively corresponding to the hydrogen generation chamber and the oxygen generation chamber. A filtering film for removing water is arranged between the hydrogen/oxygen outlet part and the electrolytic cell module. A power supply module is arranged on the bottom cover of the housing to supply electric energy to the cathode electrode plate and the anode electrode plate.

Resumen de: US2023175086A1

A process for the production of sponge iron and a system for the production of sponge iron. The process includes the steps of: producing electrolytic hydrogen and oxygen by electrolysis of water; producing methanol by reacting the electrolytic hydrogen with carbon dioxide; storing the methanol; reforming the methanol using water and/or oxygen to provide carbon dioxide and released hydrogen; providing the released hydrogen as a component portion of a reducing gas to a direct reduction shaft; and reducing iron ore in the direct reduction shaft using the reducing gas to produce the sponge iron.

Resumen de: US2023178778A1

The present disclosure provides systems and methods for producing a continuous supply of water. The systems generally comprise an electrolyzer module fluidly connectable to a hydrogen storage system and a water-capture unit for generating water, the water-capture unit electrically connectable to a photovoltaic panel and to a hydrogen fuel cell.

Resumen de: GB2613332A

A membrane less electrolyser cell is described which has flow-through electrodes 1,2. The electrodes 1,2 have sintered metal diffusers 10 and the electrolyte solution is fed into the gap between the electrodes at pressure. As the electrolyte is forced into the gap, the flow diverges carrying gas products into separate effluent channels. The porous electrodes consist of carbon nanotubes (CNTs) 3, that enhance the separation of gases generated. The gases generated, such as hydrogen 5 and oxygen 4, are released at the back of the electrodes. In order to avoid generation of gases between the electrodes, surfaces that are facing the gap may be coated by an insulator material 11 so electrocatalytic reactions cannot take place on these surfaces which would otherwise hinder gas generation within the electrode gap.

Resumen de: GB2613362A

An electrolyser 200 for producing hydrogen is detailed. It comprises: 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 (AEM) 218 is located between the cathode structure 202 and the anode structure 204. Two transport layers 214,216 are also present where one transport layer 216 is disposed between the anode structure 204 and the anion exchange membrane 218 and one transport layer 214 is disposed between the cathode structure 202 and the anion exchange membrane 218. There is also at least one fluid path to supply an electrolyte to the electrolyser. The PCB plates may also comprise copper plated layers with subsequent nickel overlayers. The transport layer 214,216 may also comprise a catalyst and porous material such as felt or metal mesh.

Resumen de: GB2613365A

Aspects of the present invention relate to hydrogen recovery system for extracting hydrogen from process gases. The hydrogen recovery system includes an electrochemical pump for extracting at least some of the hydrogen occurring in the process gases. The electrochemical pump has an anodic compartment having at least one anode, a cathodic compartment having at least one cathode, and a membrane disposed between the anodic compartment and the cathodic compartment. A controller is provided for controlling the electric current supplied to the electrochemical. The anodic compartment has an anodic compartment inlet for introducing the process gases into the anodic compartment; and an anodic compartment outlet for discharging a waste gas from the anodic compartment. The cathodic compartment has a cathodic compartment outlet for discharging hydrogen extracted from the process gases.

Resumen de: US2022038049A1

A distributed direct current power system including an inverter to invert DC to alternating current (AC), a plurality of photovoltaic (PV) strings, and a plurality of maximum power point tracking (MPPT) converters coupled between the plurality of photovoltaic (PV) strings, respectively, and the central inverter, the plurality of MPPT converters configured to maximize solar power production by the plurality of PV strings and minimize mismatch between the plurality of PV strings. The system also including a plurality of batteries, a plurality of DC-DC battery converters (DCBC) coupled to the plurality of batteries and configured to manage charge and discharge of the plurality of batteries, enable interconnection of the plurality of PV strings and the plurality of batteries, and supply a constant medium DC voltage to the central inverter, and a hydrogen generation system in electrical communication with the inverter, the photovoltaic strings, or the batteries.

Resumen de: WO2023093423A1

Disclosed in the present invention is a heat recovery system for producing hydrogen from a solid oxide electrolytic cell. The heat recovery system comprises a water storage tank, a solar cell panel, low-temperature metal hydrogen storage tanks, an evaporator, high-temperature metal hydrogen storage tanks, a heat exchanger, a solid oxide electrolytic cell, a separator, and a reactor. After water in the water storage tank is sequentially subjected to multi-stage heat exchange through the solar cell panel, the low-temperature metal hydrogen storage tanks, the evaporator, the high-temperature metal hydrogen storage tanks and the heat exchanger, water vapor reaching a working temperature enters the solid oxide electrolytic cell; hydrogen generated after an electrochemical reaction and unused water vapor flow out from a cathode product outlet of the solid oxide electrolytic cell, are first subjected to heat exchange with water vapor to be reacted by means of the heat exchanger, and then enter the separator; one hydrogen outlet I of the separator is connected to the low-temperature metal hydrogen storage tanks and the high-temperature metal hydrogen storage tanks, and heat released in a hydrogen storage process of the hydrogen storage tanks heats water; the other hydrogen outlet II of the separator is connected to the reactor, hydrogen reacts with carbon dioxide in the reactor to generate methane, and reaction heat from methane production is conveyed to the evaporator to heat water;

Resumen de: WO2023093012A1

Provided in the present application is a method for a triple-electrode system electrolyzing water to produce hydrogen. The method comprises the following process: assembling an electrolytic cell; and forming a first circuit between a hydrogen evolution cathode plate, an auxiliary electrode plate and an external power source in the electrolytic cell, and also forming a second circuit between the auxiliary electrode plate, an oxygen evolution anode plate and the external power source, so as to enable, by means of the connection of the first circuit and the disconnection of the second circuit, a reaction on the hydrogen evolution cathode plate to prepare hydrogen, and enable, by means of the disconnection of the first circuit and the connection of the second circuit, a reaction on the oxygen evolution anode plate to prepare oxygen. In the same electrolytic cell, three electrodes, i.e. a hydrogen evolution cathode plate, an auxiliary electrode plate and an oxygen evolution anode plate, and an external power source are connected to form two circuits, such that separate preparation of hydrogen and oxygen is realized by means of controlling the connection and disconnection of the two circuits, and therefore the phenomenon of the mixture of prepared hydrogen and oxygen is avoided, thereby reducing the separation cost.

Resumen de: AU2021381703A1

The invention concerns an apparatus for the electrolytic production of hydrogen comprising: - a first chamber (26) filled with water; - a lower part (23); - an upper part (28); - a gas production unit (1) located within the lower part (23) and including an electrolytic cell and a hydrogen nozzle (4); - an electric generator (12) located within the upper part (28); - a first driving mechanism (5-9) located within the first chamber (26); - a hydrogen outlet (18) located in the top part of the first chamber (26); the first chamber (26) being located between the lower and upper parts (23,28) and communicating with the gas unit (1) via the hydrogen nozzle (4), in such a way that hydrogen bubbles may be generated within the water of the first chamber (26) and be directed in an upwards direction due to the buoyancy force acting on the bubbles; the first driving mechanism (5-9) being adapted to be actuated by ascending bubbles; the generator (12) being adapted to be actuated by the first driving mechanism (5-9); and the electrolytic cell being connected to the electric generator (12). The invention also concerns a method for the production of hydrogen comprising the following steps: - generating hydrogen in water via electrolysis, - actuating an upwardly oriented driving mechanism with hydrogen bubbles generated during said electrolysis, - converting the mechanical energy of the driving mechanism into an electrical energy, - using said electrical energy for said electrolysis.

Resumen de: US2023167562A1

The present invention relates to a carbon-assisted solid oxide electrolysis cell comprising: a cathode, an electrolyte, an anode, and an anode chamber set in the order. The cathode is supplied with water as an oxidant and the reduction reaction occurs. The anode chamber includes carbon fuel and CO2 absorber, supplied with the water as in situ gasification agent, wherein the water assists the gasification of the carbon fuel to generate CO and H2. The O2− ions generated by cathode are transported to the anode through the electrolyte, and react with CO and H2 generated in the anode chamber as oxidant. The CO produced by the carbon gasification reaction partly reacts with water to generate CO2 and H2, while the CO2 absorber promotes the production of H2 by absorbing the CO2 produced by the water gas shift reaction. The present invention can control the internal gas composition of the CA-SOEC anode effectively, improving the performance of the carbon-assisted electrolysis cell and reducing energy consumption. Furthermore, the present invention achieves the simultaneous generation of fuel gas by the cathode and the anode, significantly improving the efficiency of the electrolysis.