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ELECTROLYSIS OXYGEN FOR SUSTAINABLE ACETYLENE CHEMISTRY

Resumen de: WO2025196219A1

A process for preparing acetylene and/or synthesis gas by partial oxidation of hydrocarbons with an oxidizing agent, wherein the oxidizing agent comprises O2 and H2, wherein the oxidizing agent is obtained at least in part by water splitting, preferably by electrolysis, the water splitting, preferably the electrolysis, preferably using energy generated at least in part from non-fossil resources, a cracking gas stream obtainable by the process according to the present invention, acetylene obtainable by the process according to the present invention, acetylene having a low total cradle to gate product carbon footprint, synthesis gas obtainable by the process according to the present invention, synthesis gas comprising hydrogen, CO, CO2 and CH4, wherein the separated synthesis gas stream has a δ18O value of < 22 ‰, referred to the international standard VSMOW ((Vienna- Standard- Mean-Ocean- Water)), the use of an oxidizing agent comprising O2 and H2 for the preparation of acetylene and synthesis gas, the use of the inventive acetylene or the acetylene obtained by the inventive process for the preparation of butynediol, butanediol, butenediol, polybutylene terephthalate (PBT), polybutylene adipate terephthalate (PBAT), tetrahydrofurane (THF), polytetrahydrofurane (polyTHF), polyester-based thermoplastic polyurethanes (TPUs), polyether-based TPUs, gamma-butyrolactone, pyrrolidine, vinylyrrolidone, polyvinylpyrrolidone, N-methylpyrrolidone, vinyl ether, polyvinyl ether, terpenes

CATALYST FOR HYDROGEN PRODUCTION

Resumen de: WO2025199193A1

Provided herein are catalysts for producing hydrogen via the hydrogen evolution reaction (HER) during water splitting, methods of producing hydrogen via photocatalytic water splitting using the catalysts, and compositions for use m photocatalytic water splitting that include the catalysts. In some embodiments, a catalyst hereof is a metal complex of Formula (I): M(L1)( L2)A, wherein M is a transition metal, L1 and L2 are both ligands independently forming one or more coordinate bonds with the metal M, and A is an anion, and wherein L1 is a tetrapyridyl-amine (Py4N) having four pyridyl groups and an amine group each forming a coordinate bond with the metal M.

METHOD AND SYSTEM FOR PRODUCING A SYNTHETIC FUEL FROM BIOMASS

Resumen de: WO2025195703A1

The invention relates to a method for producing a synthetic fuel (F), comprising the steps (S1): carrying out a first reaction process, wherein the first reaction process creates a gas mixture of synthesis gas (SG) and carbon dioxide (CO2) with the addition of biomass (BM), oxygen (O2), wherein the synthesis gas (SG) contains carbon monoxide (CO) and hydrogen (H2); (S2): separating carbon dioxide (CO2) from the gas mixture and supplying hydrogen (H2) to separated carbon dioxide (CO2) for a second reaction process; (S3): carrying out a second reaction process, wherein in the second reaction process methanation is carried out using the reactants carbon dioxide (CO2) and hydrogen (H2), wherein methane (CH4) and water (H2O) are produced as an intermediate product; (S4): feeding back methane (CH4) and water (H2O) obtained from the second reaction process into the first reaction process, wherein a gas mixture containing synthesis gas (SG) is produced; and (S5): discharging synthesis gas (SG) and converting synthesis gas into a synthetic fuel (F). The invention further relates to a system (1) for producing a synthetic fuel (F), which is designed in particular to carry out the method.

METHOD FOR OPERATING AN AMMONIA SYNTHESIS PROCESS AT PARTIAL LOAD, AND PARTIAL-LOAD-CAPABLE AMMONIA SYNTHESIS PROCESS

Resumen de: WO2025195683A1

The invention relates to a method and a device for synthesizing ammonia (8), wherein a gas mixture (make-up gas) (1), which comprises hydrogen and nitrogen and is supplied with a temporally fluctuating flow rate, is provided after being compressed in a first compressor (make-up gas compressor) (V1) in order to form an ammonia synthesis gas (3) that is compressed with the aid of a second compressor (recycle compressor) (V2) and is then reacted in an ammonia reactor (R) in order to form an ammonia-containing synthesis product (5), from which a recycled gas (2) comprising hydrogen and nitrogen is separated in order to be recirculated in order to form the ammonia synthesis gas (3). The flow rate of the recycled gas (2) is controlled via the recycle compressor (V2), which is integrated into a control circuit as an actuator and the conveying capacity of which can be set independently of the conveying capacity of the make-up gas compressor (V1). The invention is characterized in that the control circuit is designed with a higher-level control system which outputs a control signal that is based on the load of the ammonia reactor in order to change the conveying capacity of the recycle compressor (V2), said control signal being corrected by a PID control circuit in such a way that the pressure in the ammonia reactor (R) is always within a specified value range.

METHOD FOR OPERATING AN AMMONIA SYNTHESIS PROCESS AT PARTIAL LOAD, AND PARTIAL-LOAD-CAPABLE AMMONIA SYNTHESIS PROCESS

Resumen de: WO2025195682A1

The invention relates to a method and a device for synthesizing ammonia (8), wherein a gas mixture (1) comprising hydrogen and nitrogen is provided with a temporally fluctuating mass flow in order to form an ammonia synthesis gas (3), which is converted into an ammonia-containing synthesis product (5) in an ammonia reactor (R) after a compression step (V2) and from which a recycled gas (2) comprising hydrogen and nitrogen is separated in order to be returned via a return line in order to form the ammonia synthesis gas (3), the mass flow of the recycled gas (2) being controlled via an adjustable throttle device (b) which is provided in the return line (2) and is integrated into a control circuit as an actuator. The invention is characterized in that the control circuit is designed with a higher-level closed-loop control system that outputs an actuating signal, which is based on the load of the ammonia reactor, for changing the degree of opening of the throttle device (b), said actuating signal being corrected by a PID control circuit in such a way that the pressure in the ammonia reactor (R) is always within a specified value range.

FUEL CELL SYSTEM, FUEL CELL PLANT AND PROCESS FOR PRODUCTION OF SYNTHESIS GAS

Resumen de: US2025297379A1

The present invention relates to an electrolysis system (10), an electrolysis plant (30) with an electrolysis system (10) and a synthesis system (20) and a method (1000) for generating synthesis gas by means of the electrolysis system (10).

DEVICE FOR PROVIDING HYDROGEN

Resumen de: US2025297602A1

In order to provide a device for providing hydrogen by means of an electrolysis unit which allows the longest possible service life of the electrolysis unit even in case of fluctuating energy supplies to the electrolysis unit, a reciprocating piston compressor is provided to compress the hydrogen generated by the electrolysis unit, the reciprocating piston compressor having at least one automatic intake valve. A unloader is provided in order to hold the intake valve selectively in an open position, an electrically actuatable actuator is provided to activate the unloader, and a control unit is provided to control the actuator, the control unit being designed to actuate the actuator in such a way that an outlet pressure (p1) of the hydrogen at the outlet of the electrolysis unit, or a differential pressure (Δp) between an anode and a cathode of the electrolysis unit, is adjustable to a predefined target value (p1_target, Δp_target).

ELECTROREDUCTION OF CARBON DIOXIDE (CO2) TO MULTI-CARBON PRODUCTS ON ELECTROCATALYST COMPRISED OF MOLYBDENUM DIPHOSPHIDE (M0P2) AND ITS DOPED DERIVATIVES

Resumen de: WO2025199135A1

Disclosed are electrodes comprising a conductive support substrate having an electrocatalyst coating containing crystalline molybdenum phosphides (MoxPy) in size ranging from micro- to nano-particles. The conductive supporting substrate is capable of incorporating a material to be reduced, such as CO2 or CO. Also disclosed are electrochemical methods for generating oxyhydrocarbons from CO2 or CO using water as a source of hydrogen.

ALKALI-CONTAINING WASTEWATER ZERO DISCHARGE DEVICE AND METHOD FOR WATER ELECTROLYSIS-BASED HYDROGEN PRODUCTION

Resumen de: WO2025194821A1

Disclosed in the present application are an alkali-containing wastewater zero discharge device and method for water electrolysis-based hydrogen production. The device comprises a hydrogen-side water seal device, a hydrogen-side degassing device, a waste alkali collecting tank, a waste alkali pump, an oxygen-side water seal device, and an oxygen-side degassing device. A hydrogen-side liquid phase outlet pipeline of the hydrogen-side degassing device goes downhill and extends inwards to the waste alkali collecting tank; an oxygen-side liquid phase outlet pipeline of the oxygen-side degassing device goes downhill and extends inwards to the waste alkali collecting tank; an exhausting pipeline of the waste alkali collecting tank is communicated with the atmosphere; by means of an inlet pipeline, the waste alkali pump goes downhill and extends inwards to the waste alkali collecting tank, and an outlet of the waste alkali pump is communicated with any one of a water supplementing tank, an alkali blending tank or an alkali transporting tank vehicle. In the present invention, on the premise of ensuring safety and saving investment and an occupied space, alkali-containing wastewater is recycled to serve as a raw material, thereby realizing zero discharge of alkali-containing wastewater; in addition, a centralized alkali-containing wastewater collecting system is designed, so that hydrogen-side and oxygen-side alkali-containing wastewater respectively pass through respective water seal

SEAWATER TREATMENT SYSTEM AND SEAWATER TREATMENT METHOD

Resumen de: WO2025194940A1

A seawater treatment system and a seawater treatment method, which are used to solve the technical problem of a low degree of resource utilization of seawater in the prior art. The seawater treatment system comprises: a filtration device, which is used for removing solid particle impurities from seawater and outputting filtered water; a nanofiltration device, which is used for separating and filtering out monovalent ions and multivalent ions from the filtered water and outputting a nanofiltration permeate and a nanofiltration concentrate; a softening device, which is used for removing multivalent ions from the nanofiltration concentrate and outputting softened water; an electrolytic hydrogen production device, which is used for decomposing organic matter in the nanofiltration permeate, producing hydrogen and outputting electrolyzed water; and a desalting device, which is used for separating salt from fresh water in the electrolyzed water, wherein an anode (12) and a cathode (13) of the electrolytic hydrogen production device are staggered, the cathode (13) is of a hollow structure having a shell layer (131) and a hollow layer (132), the hollow structure has an opening (133), an exhaust structure is arranged on the shell of an electrolytic cell, and the opening (133) outputs hydrogen via the exhaust structure.

CARBON DIOXIDE PROCESS APPARATUS, CARBON DIOXIDE PROCESS METHOD, AND MANUFACTURING METHOD OF CARBON COMPOUND

Resumen de: US2025296047A1

A carbon dioxide process apparatus includes: a recovery device that includes a carbon dioxide absorption portion which dissolves carbon dioxide in an electrolytic solution of a strong alkali and absorbs the carbon dioxide; an electrochemical reaction device to which the electrolytic solution in which the carbon dioxide is dissolved by the carbon dioxide absorption portion is supplied and which electrochemically reduces the carbon dioxide; an anion exchange type fuel cell that supplies electric energy to the electrochemical reaction device; a carbon dioxide concentration gas supply passage that supplies a carbon dioxide concentration gas generated by the fuel cell to the electrolytic solution which is discharged from the recovery device and before being supplied to the electrochemical reaction device; and a hydrogen supply passage that supplies hydrogen generated by the electrochemical reaction device to the fuel cell.

CO2 CONVERSION METHOD

Resumen de: US2025297393A1

A CO2 conversion method includes: generating CO and H2O by a RWGS reaction from CO2 and H2; generating C2H4 and H2 by CO electrolysis from the CO and H2O; and using the H2 generated by the CO electrolysis as the H2 of the RWGS reaction.

WATER ELECTROLYSIS STACK

Resumen de: US2025297392A1

A water electrolysis stack includes: a membrane electrode assembly including an electrolyte membrane and a plate-shaped current collector provided on one of both sides of the electrolyte membrane in the thickness direction thereof; a water introduction unit for introducing water from the outside; a water flow path member disposed so as to face the current collector and provided with a water flow path for guiding, along the surface direction of the current collector, the water introduced into the water introduction unit; and a pumping unit for pumping the water to the water introduction unit. The pumping unit continuously changes the pumping amount of the water, thereby pulsating the water flowing through the water flow path along the surface direction of the current collector.

ELECTROLYSIS DEVICE AND ELECTROLYSIS METHOD

Resumen de: US2025297389A1

An electrolysis device includes: an electrolysis cell; a cathode supply flow path; an anode supply flow path; a cathode discharge flow path; an anode discharge flow path; a cathode flow rate regulator to adjust a flow rate A of a cathode supply fluid; an anode flow rate regulator to adjust a flow rate B of a anode supply fluid; a first flowmeter to measure a flow rate C of a cathode discharge fluid; a second flowmeter to measure a flow rate D of a anode discharge fluid; and a control device to estimate a Faraday efficiency according to a relational expression for approximating the Faraday efficiency to a function including the C and D, and control the cathode flow rate regulator according to the estimated Faraday efficiency to control the A.

SOLID OXIDE ELECTROLYSIS UNIT

Resumen de: US2025297377A1

The present invention relates to a Solid Oxide Electrolysis unit for industrial hydrogen. carbon monoxide or syngas production comprising at least two Solid Oxide Electrolysis cores that each comprise several Solid Oxide Electrolysis stacks of Solid Oxide Electrolysis cells. a power supply to manage electrical power to the Solid Oxide Electrolysis cores and piping connected to the Solid Oxide Electrolysis cores. According to the invention. the Solid Oxide Electrolysis unit comprises a power supply module. which comprises a transformer and at least one power supply unit. and a piping module. which comprises piping headers and fluidic connections going to and from the Solid Oxide Electrolysis cores. wherein the power supply module and the piping module are arranged adjacent to each other and the Solid Oxide Electrolysis cores are arranged above the power supply module and/or the piping module.

SYNTHETIC METHANOL HAVING LOW DEUTERIUM CONTENT FROM NON-FOSSIL RESOURCES

Resumen de: US2025296902A1

A Process for making methanol having a deuterium content below 90 ppm, based on the total hydrogen content, 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.

METHOD FOR GENERATING AND TREATING A TWO-PHASE OUTFLOW FROM ONE OR MORE PRESSURIZED ELECTROLYSER STACKS AND ELECTROLYSER SYSTEM COMPRISING ONE OR MORE INDIVIDUAL PRESSURIZED ELECTROLYSER STACKS

Resumen de: AU2024237545A1

A 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.

PROCESS FOR AMMONIA SYNTHESIS USING GREEN HYDROGEN AND METHOD FOR REVAMPING AN AMMONIA PLANT

Resumen de: AU2024257970A1

Process for synthesis of ammonia wherein: ammonia make-up gas (7) containing hydrogen and nitrogen is reacted in an ammonia converter (15) under ammonia forming conditions thus obtaining an ammonia-containing effluent (8); a first hydrogen portion contained in the ammonia make-up gas (7) is produced by reforming a hydrocarbon source (1) in a reforming process (100); a second hydrogen portion (19) contained in the ammonia make-up gas (7) is produced separately from said reforming process (100), by using at least a renewable energy source (SE, WE); a part of said hydrogen (19) produced in step (c) is stored in a hydrogen storage (103); hydrogen (20) from said hydrogen storage (103) is used to fully or partially replace said second hydrogen portion (19) when said renewable energy source (SE, WE) is fully or partially unavailable. Said process comprising the steps of: assessing an expected flow rate of the hydrogen (19) produced in step (c); adjusting a flow rate of the hydrocarbon source (1) so that a flow rate of the first hydrogen portion in said ammonia make- up gas (7) is in a desired ratio with respect to said expected flow rate; detecting an actual amount, e.g., a filling level, of said hydrogen in said hydrogen storage (103); detecting an actual flow rate of hydrogen produced using the renewable energy source (SE, WE), and adjusting a flow rate of the hydrogen (20) from said hydrogen storage (103) depending on said actual amount detected in said hydrogen storage (103) and

METHOD TO ENCLOSE A HYDROGEN AND OXYGEN GENERATING APPARATUS IN AN ENCLOSURE AND ENCLOSURE ADAPTED FOR A HYDROGEN AND OXYGEN GENERATING APPARATUS

Resumen de: AU2024228415A1

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.

ELECTROLYSER SYSTEM

Resumen de: AU2024237817A1

The present invention relates to an electrolyser system (10) comprising at least one electrolyser (20), the electrolyser (20) comprising at least one steam inlet (41) and at least one off-gas outlet (38; 39), and a turbocharger (62) for compressing off-gas from the electrolyser (20). The turbocharger (62) comprises a drive fluid inlet, a drive fluid outlet, a compression fluid inlet, a compressed fluid outlet, a compressor (13) and a turbine (12). The turbine (12) is configured to drive the compressor (13). The drive fluid outlet of the turbocharger (62) is fluidically connected to the at least one steam inlet (41) of the electrolyser (20). The at least one off-gas outlet (38; 39) of the electrolyser (20) is fluidically connected to the compression fluid inlet of the turbocharger (62). The system (10) can further can comprise a steam source fluidically connected to the drive fluid inlet of the turbocharger (62) for powering the turbine (12) using pressurised steam.

ELECTROLYZER WITH VARIABLE NUMBER OF ACTIVE ELECTROLYSIS CELLS

Resumen de: AU2024222987A1

A system, comprising: an electrolyzer having a plurality of electrolysis cells arranged in a cell stack, wherein the electrolysis cells are electrically connected in series and grouped into two or more cell groups, each cell group having an electrical contact at either end; an electrical circuit having one or more switches, each switch coupled between the electrical contacts of a respective one of the cell groups and configured to selectively disconnect the cell group from the cell stack by electrically bypassing the cell group via a lower resistance path, to thereby vary the number of active electrolysis cells in the cell stack; and a controller configured to determine the number of active electrolysis cells based on a variable amount of direct current (DC) electrical energy supplied to the cell stack by an electrical energy source, and to control the one or more switches based on the determination.

GAS PRESSURE BALANCE METHOD IN AN ELECTROLYSER SYSTEM AND ELECTROLYSER SYSTEM WITH A PRESSURE BALANCE VALVE SYSTEM

Resumen de: AU2024224224A1

In a gas pressure balance method in an electrolyser system a predefined pressure difference between pressures in an oxygen gas separation tank and a hydrogen gas separation tank is maintained by controlled release of gases through an oxygen back pressure valve and a hydrogen back pressure valve. in a first step, for each of the oxygen back pressure valves and the hydrogen back pressure valves, a predefined, calibrated pilot gas pressure is generated and in a second step, the predefined, calibrated pilot gas pressures are forwarded to the respective back pressure valves and in a third step, hydrogen and oxygen gasses are released whenever the gas pressures in the hydrogen and oxygen separation tanks exceeds the predefined, calibrated pilot pressure in the respective pilot gas streams.

ELECTROLYSER UNIT COMPRISING A PLURALITY OF INDIVIDUAL ELECTROLYSER STACKS AND METHOD FOR CONNECTING ELECTROLYSER STACKS TO FORM UNITS

Resumen de: AU2024221020A1

The invention comprises a method for connecting a pair of electrolyser stacks with electrolyte, electric current and gas drain piping. Accordingly, each pair of stacks of the electrolyser: - through interconnection endplates are supplied with alkaline electrolyte at elevated pressure by common electrolyte supply pipes and further, - through the interconnection endplate drain off oxygen gas containing electrolyte, and hydrogen gas containing electrolyte, to common gas separation vessels for oxygen and hydrogen respectively, - pull first electrically interconnected current injection electrodes adjacent to interconnection endplates to zero electrical potential through a zero potential conductor, and - supply second current injection electrodes placed adjacent to distal endplates with electric current at potentials equally higher and lower respectively than the zero potential at the first electrodes.

CATALYST FOR HYDROGEN PRODUCTION

Resumen de: US2025297387A1

Provided herein are catalysts for producing hydrogen via the hydrogen evolution reaction (HER) during water splitting, methods of producing hydrogen via photocatalytic water splitting using the catalysts, and compositions for use in photocatalytic water splitting that include the catalysts. In some embodiments, a catalyst hereof is a metal complex of Formula I,M(L1)(L2)A   Formula Iwherein M is a transition metal, L1 and L2 are both ligands independently forming one or more coordinate bonds with the metal M, and A is an anion, andwherein L1 is a tetrapyridyl-amine (Py4N) having four pyridyl groups and an amine group each forming a coordinate bond with the metal M.

ELECTROLYZER FOR PRODUCING HYDROGEN AND METHOD FOR THE PRODUCTION OF HYDROGEN, AND USE OF THE ELECTROLYSER

Nº publicación: US2025297380A1 25/09/2025

Solicitante:

FINOW AUTOMOTIVE EBERSWALDE GMBH [DE]
Finow Automotive Eberswalde GmbH