Absstract of: US2023062648A1

Disclosed herein are novel systems and methods for performing the following: decomposing water into hydrogen by using low-power consumption electrolysis, converting orthohydrogen into parahydrogen by using vibrational frequency, converting parahydrogen into atomic hydrogen, and mixing converted atomic hydrogen with combustible gas. The system uses a unique low-power hydrogen production cell to perform electrolysis on water. Hydrogen output from the production cell runs through coils under vibrational frequency to optimally convert orthohydrogen to parahydrogen. The system further comprises a magnetic reactor that is used to convert parahydrogen into atomic hydrogen, which is in turn mixed with combustible gas to create an eco-friendly fuel.

Absstract of: AU2021321459A1

An integrated solar hydrogen production module (10) comprise a plurality of PV cells (14) supported on a housing of the module (10). The module (10) has an energy storage system (16) which includes a rechargeable metal ion battery and a flow battery (60). The metal ion battery is charged by the PV cells (14). An electrolyser (18) 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 (60). The PV cells (14), the metal-ion battery, the flow battery membrane (60) and the electrolyser (18) are electrically coupled together and integrated into or carried by the module housing. Electrically powered and solar thermal heaters (36, 38) can be incorporated into or with the module to heat the water in the electrolysers. A pump (34) pressurises the water to facilitate the pressurisation of hydrogen and oxygen produced by the electrolysis.

Absstract of: AU2022204916A1

A metal component for electrochemical stack in an embodiment includes: a metal base material having a first surface exposed to an atmosphere containing hydrogen and a 5 second surface exposed to an atmosphere containing oxygen; and a hydrogen permeation inhibition and protection coating provided on the first surface of the metal base material. The metal component for electrochemical stack in the embodiment can suppress metallic corrosion also in the case where one side is in contact with air and the other side is in contact with an atmosphere containing hydrogen. 18873903_1 (GHMatters) P119469.AU [FUEL ELECTRODE SIDE] 2a --- 4 2b [AIR ELECTRODE SIDE] 18 17 14 16 15 18 L \.,N19 12 -4 20A \NQ 19 17 14 16 15

Absstract of: US2023060683A1

A multi-channel alkaline hydrogen production system is disclosed. Using liquid outlets of a hydrogen alkali treatment unit and an oxygen alkali treatment unit, a circulating alkaline liquid is outputted to an alkaline liquid circulating pump and a controllable channel, and then the circulating alkaline liquid is returned to the negative electrode of an electrolyzer; Thus, a controller can control the amount of produced hydrogen according to the measured current of the electrolyzer, then calculates a corresponding alkaline liquid circulation volume reference value according to the amount of produced hydrogen, and according to the alkaline liquid circulation volume reference value, adjusts the circulation amount of the alkaline liquid of the multi-channel alkaline hydrogen production system and changes the gas purity of the multi-channel alkaline hydrogen production system by controlling the working states of the controllable channels on the two ends of the alkaline liquid circulating pump.

Absstract of: AU2021315664A1

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.

Absstract of: US2023061774A1

A highly active and exceptionally durable non-noble metal-sulphide based Hydrogen Evolution Reaction (HER) catalyst and the preparation thereof. More particularly, provided is a highly active earth abundant metal-sulphide based HER catalyst with exceptionally durable hydrogen evolution activity even after 100 hrs.

Absstract of: US2023060945A1

Methods for producing alcohols by deriving carbon dioxide from air or another dilute source, and supplying water, which is converted to hydrogen and oxygen, with subsequent conversion of the carbon dioxide and hydrogen into alcohols is disclosed. The method includes, but is not limited to including, a direct air capture system carbon dioxide, a water electrolysis unit powered by electricity, a hydrogenation reactor to convert carbon dioxide and hydrogen gases into alcohols, and a distillation system to separate alcohols or a single constituent alcohol from other hydrogenation products. Optionally, these methods may include systems capture water from air, if water or hydrogen is not available on-site, and the distillation system may use propylene glycol as an extraction solvent. This process can be used for on-site production of feedstock alcohols such as ethanol at high purity, and many other applications.

Absstract of: WO2023026269A1

Water electrolyzers, systems and methods are provided, which operate with saline water to produce hydrogen. Water electrolyzers comprise an electrode assembly configured to electrolyze received water to produce oxygen and hydrogen, and one or more diffusion layer(s) attached to one of the electrodes of the electrode assembly and configured to deliver the water for the electrolysis by excluding specified ions from received saline water. Excluding anions such as chloride ions and optionally cations from the received saline water enable maintaining the operation and efficiency of the water electrolyzers in spite of using un-deionized water for electrolysis. Ion exchange column(s) may be used to retain and/or regenerate the alkalinity (or possibly the acidity) in the electrolyzer if needed and to remove anions and optionally cations.

Absstract of: WO2023026926A1

According to this embodiment, a water electrolysis device comprises a water electrolysis cell, a power supply unit, and a control unit. By using a solid polymer electrolytic membrane having one surface on which an anode electrode is installed and the other surface on which a cathode electrode is installed, the water electrolysis cell electrolyzes the water supplied to the anode electrode to generate hydrogen and oxygen. The power supply unit can change the potential of the anode electrode. In a first mode, the control unit controls the power supply unit so that the potential of the anode electrode is at least a first potential. In a second mode, the control unit controls the state of the water electrolysis cell so that the potential of the anode electrode is lower than the first potential and is at least the dissolution potential of a predetermined catalyst in the anode electrode.

Absstract of: WO2023023691A1

A process (100) for producing hydrogen (50) comprises the steps of: operating a prime mover (22), operation of the prime mover (22) producing an exhaust gas (27); recovering heat from said exhaust gas (27) by a waste heat to power system (70) to produce electricity (80); and using the electricity (80) to conduct electrolysis of water to produce hydrogen (50) and oxygen (68). The waste heat to power system is advantageously an ORC power generation system (70) to avoid disadvantages of steam combined cycle operation.

Absstract of: GB2610166A

The invention provides a process for disinfecting seawater, the process comprises the steps: (i) contacting the seawater with pure oxygen 20 so as to produce purified seawater 30; and (ii) electrolysing 3 the purified seawater to produce hydrogen 40 and oxygen; wherein the oxygen produced in step (ii) is at least partially recycled for use in step (i). The pure oxygen may be provided as a gas stream consisting of pure oxygen and ozone. A portion of the oxygen produced in step (ii) can be used to produce ozone. The power required for step (ii) may be generated by one or more offshore wind turbines. Suitably, the purified seawater produced in step (i) undergoes desalination prior to step (ii). Apparatus for performing the method comprises: a contactor configured to contact seawater and pure oxygen to produce purified seawater which exits the contactor via a liquid phase conduit; and an electrolyser receiving the purified seawater to produce hydrogen gas which exits the electrolyser via a first outlet and oxygen gas which exits the electrolyser via a second outlet. The second outlet provides oxygen gas to the contactor. The use of pure oxygen for disinfecting seawater is also claimed.

Absstract of: EP4141146A1

A compression apparatus includes a stack including a plurality of electrochemical cells stacked on top of one another, the electrochemical cells each including an anode, a cathode, and an electrolyte membrane interposed between the anode and the cathode, a pair of insulating plates disposed at respective ends of the stack in a direction in which the electrochemical cells are stacked, a pair of end plates disposed on outside surfaces of the respective insulating plates, and a voltage applicator that applies a voltage between the anode and the cathode. Upon the voltage applicator applying the voltage, the compression apparatus causes protons extracted from an anode fluid fed to the anode to move to the cathode and produces compressed hydrogen. At least one of the end plates has a cathode gas channel formed therein, the cathode gas channel through which a cathode gas including the compressed hydrogen flows. The end plate having the cathode gas channel includes a first region including an outer peripheral surface of the cathode gas channel, the first region being composed of a first steel material, and a second region other than the first region, the second region being composed of a second steel material. The first steel material has higher hydrogen embrittlement resistance than the second steel material, and the second steel material has higher stiffness than the first steel material.

Absstract of: EP4141147A1

A compression apparatus includes a stack including a plurality of electrochemical cells stacked on top of one another, the electrochemical cells each including an anode, a cathode, and an electrolyte membrane interposed between the anode and the cathode, a pair of insulating plates disposed at respective ends of the stack in a direction in which the electrochemical cells are stacked, a pair of first end plates disposed on outside surfaces of the respective insulating plates, and a voltage applicator that applies a voltage between the anode and the cathode. Upon the voltage applicator applying the voltage, the compression apparatus causes hydrogen included in a hydrogen-containing gas fed to the anode to move to the cathode and produces compressed hydrogen. The first end plates have a first channel through which the hydrogen-containing gas fed to the anode flows and a second channel through which a heating medium flows, the first and second channels being formed in the first end plates. The compression apparatus further includes a heater that heats the heating medium.

Absstract of: ES2934878A1

The invention describes a procedure for generating electrical energy by pumping, characterized in that it comprises the following steps: obtaining hydrogen at a first height; pumping the hydrogen obtained from the first height to a second height greater than the first height; storing the hydrogen pumped at said second height; obtaining water at the second height by reacting the stored hydrogen with atmospheric oxygen present at said second height; store the water obtained at said second height; and generate electrical energy by lowering the water stored at said second height to a turbine located at said first height. The invention also describes a system for carrying out this procedure. (Machine-translation by Google Translate, not legally binding)

Absstract of: WO2023022282A1

The present invention relates to a hydrogen ion generation apparatus comprising: a cylindrical water tank formed in a state in which the upper and lower parts thereof are open, and formed to have a size enabling a predetermined amount of water to be stored; an upper cover assembled such that the upper part of the cylindrical water tank can be sealed, the upper cover having an upper insertion hole through which a cable for supplying power can be inserted; a lower support assembled such that the lower part of the cylindrical water tank can be sealed, the lower support having a lower insertion hole through which a cable for supplying power can be inserted; a plurality of fastening bolts for fastening the upper cover and the lower support so that the upper cover and the lower support assembled to seal the open upper and lower parts of the cylindrical water tank firmly press the upper and lower parts of the cylindrical water tank; a plurality of (+)(-) electrode holders vertically fixed and arranged to maintain a predetermined interval inside the cylindrical water tank; and a plurality of (+)(-) electrode plates alternately provided upward and downward to be spaced apart from each other so that water is electrolyzed by separately receiving, respectively, (+) power and (-) power from the (+) electrode holders and the (-) electrode holders.

Absstract of: US2023053936A1

A system and method for producing methanol via dry reforming and methanol synthesis in the same vessel, including converting methane and carbon dioxide in the vessel into syngas including hydrogen and carbon monoxide via dry reforming in the vessel, cooling the syngas via a heat exchanger in the vessel, and synthesizing methanol from the syngas in the vessel.

Absstract of: US2023057781A1

A system and method for producing olefin via dry reforming and olefin synthesis in the same vessel, including providing feed including methane and carbon dioxide to the vessel, converting methane and carbon dioxide in the vessel into syngas (that includes hydrogen and carbon monoxide) via dry reforming in the vessel, and cooling the syngas via a heat exchanger in the vessel. The method includes synthesizing olefin from the syngas in the vessel, wherein the olefin includes ethylene, propylene, or butene, or any combinations thereof.

Absstract of: WO2023023093A1

The presently disclosed subject matter relates to devices, systems, and methods of producing an improved fluid flow assembly and liquid/gas diffusion layer in solid polymer electrolyte electrochemical cells. In one aspect, a fluid flow assembly for a polymer electrolyte water electrolyzer includes a flow field having an inlet, an outlet, and a plurality of discrete lands arranged within the flow field. A liquid/gas diffusion layer is positioned in communication with the flow field between the inlet and the outlet, the liquid/gas diffusion layer having a solid substrate through which a plurality of pores is formed. The disclosed bipolar plate flow field and liquid/gas diffusion layer could work together or separately with other types of porous transport layers or bipolar plates to enhance the water/gas transport. In these configurations, the lands can be arranged and configured such that the plurality of pores are substantially unobstructed by the lands.

Absstract of: WO2023022282A1

The present invention relates to a hydrogen ion generation apparatus comprising: a cylindrical water tank formed in a state in which the upper and lower parts thereof are open, and formed to have a size enabling a predetermined amount of water to be stored; an upper cover assembled such that the upper part of the cylindrical water tank can be sealed, the upper cover having an upper insertion hole through which a cable for supplying power can be inserted; a lower support assembled such that the lower part of the cylindrical water tank can be sealed, the lower support having a lower insertion hole through which a cable for supplying power can be inserted; a plurality of fastening bolts for fastening the upper cover and the lower support so that the upper cover and the lower support assembled to seal the open upper and lower parts of the cylindrical water tank firmly press the upper and lower parts of the cylindrical water tank; a plurality of (+)(-) electrode holders vertically fixed and arranged to maintain a predetermined interval inside the cylindrical water tank; and a plurality of (+)(-) electrode plates alternately provided upward and downward to be spaced apart from each other so that water is electrolyzed by separately receiving, respectively, (+) power and (-) power from the (+) electrode holders and the (-) electrode holders.

Absstract of: WO2023020265A1

The present application provides a liquid level balance control method for a hydrogen production system and a hydrogen production system, which are applied to the technical field of hydrogen preparation. The method comprises: after obtaining a parameter value variation of a target electrical parameter and a parameter difference of target state parameters of a hydrogen separator and an oxygen separator, according to the parameter value variation, determining a first adjustment amount; on the basis of the first adjustment amount and the obtained parameter difference, further determining a target adjustment amount; and finally, according to the target adjustment amount, adjusting the liquid level of the hydrogen separator and/or the oxygen separator. In the present invention, the target electrical parameter is related to the hydrogen production power of the hydrogen production system. Since fluctuation of the hydrogen production power directly affects the change in liquid level of the hydrogen separator and the oxygen separator, and the change in liquid level occurs after the fluctuation of the hydrogen production power, the adjustment amount can thus be determined in advance before the hydrogen production power finally impacts liquid level deviation, response time of liquid level adjustment is shorter, liquid level balance control efficiency is effectively improved, liquid level fluctuation is smaller, and the liquid level balance control effect is improved.

Absstract of: WO2023021332A1

Embodiments are disclosed comprising an electromechanical device that generates hydrogen from mechanical energy without requiring an external source of electrical energy. In one embodiment, for example, the only external energy required is rotational energy and the necessary electrical energy for electrolytic dissociation of water is generated internally to the device. Various aspects of embodiments of the invention provide enhanced efficiency for generating hydrogen. Details of various embodiments are further described herein.

Absstract of: WO2023021075A2

A method of producing hydrogen comprises electrolysing water to produce a mixture of hydrogen and oxygen gases, passing the mixture into a chamber containing a hydrogen storage medium to store the hydrogen by adsorption therein, venting the oxygen from the chamber, and subsequently treating the hydrogen storage medium to release the hydrogen stored therein. Apparatus for producing hydrogen from water comprises an electrolyser unit (1, 2) having mounted thereon a chamber (5) in communication with a gas outlet (3) from the electrolyser, the chamber containing a hydrogen storage medium (4) and being provided with means (8) for venting oxygen from the chamber.

Absstract of: AU2021362761A1

A process for synthesising hydrocarbons is described comprising the steps of (a) making a synthesis gas comprising hydrogen, carbon monoxide and carbon dioxide from a feedstock in a synthesis gas generation unit, (b) removing carbon dioxide from the synthesis gas in a carbon dioxide removal unit to produce a carbon dioxide stream and purified synthesis gas comprising hydrogen and carbon monoxide, and (c) synthesising a mixture of hydrocarbons from the purified synthesis gas in a Fischer-Tropsch hydrocarbon synthesis unit, with co- production of a FT water stream, wherein (i) at least a portion of the FT water stream is fed to an electrolysis unit to provide an oxygen stream, which is fed to the synthesis gas generation unit, and a hydrogen stream, (ii) at least a portion of the carbon dioxide stream recovered from the carbon dioxide removal unit and a portion of the hydrogen stream produced by the electrolysis unit are fed to a reverse water-gas shift unit to produce a carbon monoxide stream, and (iii) at least a portion of the carbon monoxide stream from the reverse water-gas shift unit is fed to the Fischer-Tropsch hydrocarbon synthesis unit.

Absstract of: WO2023021678A1

This oxygen recovery system is characterized by comprising an oxygen recovery line that recovers oxygen discharged from a water electrolysis device, a hydrogen detection means that detects hydrogen included in the oxygen, and a prevention means that, when the amount of hydrogen included in the oxygen has exceeded a prescribed amount, prevents recovery of oxygen for which the amount of hydrogen has exceeded the prescribed amount.

Absstract of: WO2023021034A1

The present invention concerns a method for alkaline water electrolysis of water in an electrolyzer and an electrolyzer configured to carry out the method, the electrolyzer comprising at least one electrolytic cell having an anodic compartment provided with an anode, a cathodic compartment provided with a cathode, and a separator arranged between said anodic and cathodic compartments. The method comprises selecting a threshold current density such that at operating current densities up to said threshold current density, the migration of hydrogen generated in said cathodic compartment through said separator into said anodic compartment is limited, and at operating current densities above said threshold current density, a migration of oxygen generated in said anodic compartment through said separator into said cathodic compartment is limited.