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Ironmaking method and associated plant

Resumen de: US20260275433A1

Method to produce hot metal in a blast furnace including at least two levels of gas injection wherein the blast furnace top gas is recovered and subjected to an oxidation step using water-gas shift reaction to transform at least a part of the carbon monoxide from the recovered blast furnace top gas into carbon dioxide and hydrogen, the carbon dioxide is then separated to obtain a CO2-rich stream and a H2-rich stream, at least a part of it being injected into the blast furnace at the second level of gas injection.

METHOD FOR PRODUCING HYDROGEN AND APPARATUS FOR PRODUCING HYDROGEN

Resumen de: US20260275546A1

A method for producing hydrogen comprises providing water and a gaseous substance, the gaseous substance comprising hydrogen atoms and carbon atoms, producing a mixture comprising the water and bubbles comprising the gaseous substance, decreasing a diameter of the bubbles comprising the gaseous substance, and producing gaseous hydrogen by decomposing the gaseous substance in the bubbles having the decreased diameter. An apparatus is configured for producing hydrogen gas.

MEMBRANE ELECTRODE FOR ALKALINE WATER ELECTROLYSIS FOR HYDROGEN PRODUCTION AND PREPARATION METHOD THEREFOR, AND ELECTROLYTIC CELL

Resumen de: US20260275542A1

The present disclosure provides a membrane electrode for hydrogen production by alkaline water electrolysis, a preparation method therefor, and an electrolytic cell. According to the method provided by the present disclosure, a membrane electrode with catalyst layers uniformly and firmly adhered to the surfaces of a membrane can be obtained via a direct coating and hot pressing. The membrane electrode is endowed with good stability, and the obtained membrane electrode exhibits a significantly reduced overpotential for water electrolysis. The method comprises the following steps: directly applying a catalyst slurry (catalyst slurries) onto both sides of a membrane, followed by drying and hot pressing the catalyst slurry (catalyst slurries) to form catalyst layers on each surface of the membrane to obtain the membrane electrode. The membrane is selected from a porous membrane or an alkaline anion exchange membrane; the catalyst slurry comprises a binder solution and a catalyst, wherein the binder solution is one or more selected from a perfluorosulfonic acid resin solution and a perfluorosulfonic acid ionomer dispersion, and the mass concentration of the binder solution is 5% to 30%; and the mass ratio of the binder solution to the catalyst is 1:1 to 4:1.

POROUS CATALYTIC MEMBRANE, MEMBRANE ELECTRODE ASSEMBLY AND WATER ELECTROLYSIS DEVICE

Resumen de: US20260275550A1

Provided are a porous catalytic membrane, a membrane electrode assembly and a water electrolysis device. The porous catalytic membrane includes a porous polymer membrane formed by interweaving randomly arranged nanofibers and a catalyst coated on a surface of the nanofibers. The porous polymer membrane has a self-supporting structure and a large specific surface area, providing a large number of loading sites for the catalyst. The catalyst can be directly anchored onto the nanofibers of the porous polymer membrane through a physical or chemical method to achieve uniform dispersion without the need for coating by ionomers, thereby avoiding high costs and performance degradation caused by the adoption of ionomers. The exposure degree of the catalytic active sites is significantly increased, thereby enhancing utilization efficiency of the catalyst and reducing the amount of noble metal catalysts.

DIRECT AIR CAPTURE OF CARBON DIOXIDE

Resumen de: US20260273467A1

A cyclic process for the capture of carbon dioxide (CO2) directly from air utilizing a three-compartment electrolytic cell coupled with a hydroxide-based CO2 capture system as well as a carbonate-based CO2 capture system. Air is passed over a hydroxide compound in the hydroxide-based CO2 capture system to extract carbon dioxide from the air and produce a carbonate compound which is transferred to the carbonate-based CO2 capture system, where air is passed over the carbonate compound to extract carbon dioxide from the air and produce a bicarbonate compound. The bicarbonate is then passed into the three-compartment electrolytic cell where CO2, hydrogen and oxygen gases are separately released and the bicarbonate solution is transformed into a hydroxide solution that is reused in the hydroxide-based CO2 capture system. The flow of input compounds from one system to the other enables efficient operation of the direct air capture of carbon dioxide system.

METHOD AND SYSTEM FOR PRODUCING A SYNTHETIC FUEL FROM BIOMASS

Resumen de: AU2025240709A1

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: AU2025241436A1

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.

電解システム

Resumen de: JP2026147233A

0001 【課題】ヒートポンプの熱出力に誤差等が生じていても、電解セルに適正量の水蒸気を供給する。 【解決手段】電解システムは、水蒸気電解により水素を生成する電解セルを含む電解モジュールと、原料水から水蒸気を生成する水蒸気生成部と、水蒸気生成部で生成された水蒸気を電解モジュールに供給する蒸気供給ラインと、蒸気供給ラインから分岐して前記電解モジュールをバイパスするバイパスラインと、バイパスラインに設置される圧力調整弁と、を備える。 【選択図】図１

水素発生方法、水素発生システムおよび燃料電池システム

Resumen de: JP2026147995A

【課題】可視光を効率的に利用でき、且つ常温で簡便に水素を発生させることが可能な水素発生方法、水素発生システムおよび燃料電池システムを提供する。【解決手段】本開示の水素発生方法は、１層以上の層状の水素化シリカン含有物に光を照射することにより水素を発生させる。層状の水素化シリカン含有物は粉体であることが好ましく、粉体は、分散媒またはバインダーに分散したり、担持体に担持したりしてもよい。【選択図】図２

水電解槽のセル、および水電解槽

Resumen de: JP2026148455A

0001 【課題】隔膜の位置ずれ、隔膜の脱落、隔膜における皺の発生、または隔膜の破損を防止できる水電解槽のセル、および水電解槽を提供する。 【解決手段】水電解槽のセル２は、セルフレーム４と、隔膜８とを備えている。セルフレーム４は、第１主面４ａと、前記第１主面４ａの反対側に位置する第２主面４ｂとを有し、隔膜８は、セルフレーム４の第１主面４ａに接着剤または粘着剤６０で固定されている。 【選択図】図３

水電解セル、及び水電解装置

Resumen de: JP2026147521A

【課題】イオン交換膜の損傷を適切に抑制することができる水電解セル、及び水電解システムを提供すること。【解決手段】本開示に係る水電解セルは、イオンを選択的に透過する性質を有するイオン交換膜と、イオン交換膜の一方側に配置される負極側触媒層と、イオン交換膜の他方の面側に配置される正極側触媒層と、イオン交換膜の一方の面と負極側触媒層の間と、イオン交換膜の他方の面と正極側触媒層の間との、少なくとも一方に設けられ、親水性を有する有機材料で構成される保護膜と、を備える。【選択図】図１

METHOD OF CONVERTING BIOMASS INTO HYDROGEN AND BIOGENIC CARBON DIOXIDE

Resumen de: WO2026190457A1

A method of continuously converting biomass into hydrogen and biogenic carbon dioxide is provided. The method comprises introducing biomass, water, an acid and an oxidised redox mediator into a first reactor; operating the first reactor to generate carbon dioxide and an anolyte solution comprising an oxidised biomass, a reduced redox mediator and H+ ions; removing carbon dioxide from the first reactor; introducing at least a portion of the anolyte solution into an anode side of an electrochemical reactor; introducing a catholyte solution comprising an acid and a catholyte redox mediator into a cathode side of the electrochemical reactor; operating the electrochemical reactor to generate hydrogen at the cathode by reducing H+ ions, and to regenerate the oxidised redox mediator at the anode by oxidising the reduced redox mediator; removing hydrogen from the electrochemical reactor; and recirculating the oxidised redox mediator from the electrochemical reactor to the first reactor.

ELECTROLYSIS SYSTEM

Resumen de: WO2026191168A1

This electrolysis system comprises: an electrolysis device that generates a cathode off-gas containing hydrogen through electrolysis of a water raw material; a fuel synthesis reaction device that synthesizes fuel from hydrogen and a carbon oxide gas; a cathode regeneration heat exchanger that exchanges heat between the cathode off-gas and a cathode supply gas supplied to a cathode of the electrolysis device; a steam generator that converts the water into steam on the upstream side of the cathode regeneration heat exchanger; a heating medium circulation system in which a heating medium moves between the steam generator and the fuel synthesis reaction device; an auxiliary heating device that is provided on the upstream side of the steam generator in the heating medium circulation system and heats the heating medium; a heating medium pump that is provided on the downstream side of the steam generator in the heating medium circulation system; and a steam heating medium state estimation sensor that is provided in the steam generator and estimates a vaporization state of the water.

METHODS FOR SELECTIVELY DEPOSITING NANO- OR MICROSCOPIC PLUGS IN MEMBRANES FOR ELECTROCHEMICAL APPLICATIONS

Resumen de: US20260275551A1

Crossover through submicron thick SiO2 membranes can be mitigated by selectively depositing oxide, e.g., carbon-containing silicon oxide (SiOxCy) “nanoplugs” into the pinholes and cracks of the membranes. Defect-containing membranes are contacted with a deposition solution including hydrolysable precursors, e.g., metal alkoxides like tetraethyl orthosilicate (TEOS), and a nanoplug directing agent, e.g., tetramethylammonium bromide (TMAB). Current is applied to the defect-containing membranes in pulses, including a shorter “on” phase where current is applied and a longer “off phase” where current is not applied. The SiOxCy nanoplugs are deposited to the structural defects during the “on” phase. The longer “off phase” enables reactants to diffuse back to the structural defects for deposition of additional nanoplugs during the next “on” phase, as well as prevent deposition of SiOxCy on non-defective regions. Treatment of plugged SiO2 membranes reduced H2 permeation rates by 5-6 orders of magnitude compared to unmodified SiO2 and 1-2 orders of magnitude compared to Nafion-117 membranes.

SOLID OXIDE ELECTROLYSIS CELL SYSTEM

Resumen de: WO2026191397A1

In order to calculate the state of the inside of an SOCE without deteriorating airtightness between electrodes of the SOCE, a solid oxide electrolysis cell system according to the present invention comprises: an electrolysis cell unit that generates oxygen and hydrogen by electrolyzing water vapor using a solid oxide electrolysis cell; a voltage measurement unit that measures the voltage of the electrolysis cell unit; an impedance measurement unit that measures the impedance value of the electrolysis cell unit; a temperature calculation unit that calculates the cell temperature of the electrolysis cell unit on the basis of the impedance value of the electrolysis cell unit and the activation energy of a solid electrolyte unit of the electrolysis cell unit; a gas composition calculation unit that calculates the gas composition of the water vapor to be flowed into the electrolysis cell unit on the basis of the voltage and the cell temperature; and a gas control unit that controls the gas flow rate of the water vapor to be flowed into the electrolysis cell unit on the basis of the gas composition calculated by the gas composition calculation unit.

WATER ELECTROLYSIS SYSTEM

Resumen de: US20260275540A1

0000 A water electrolysis system includes a water electrolysis stack, the water electrolysis stack including a cell stack body in which a plurality of water electrolysis cells for electrolyzing water are stacked, and a first end member and a second end member that sandwich the cell stack body in a stacking direction of the plurality of water electrolysis cells. At least one of the first end member or the second end member includes a gas-liquid separator for separating fluid guided from the cell stack body into gas and liquid.

POLYMER AND METHOD FOR PRODUCING SAME, COMPOUND, COMPOSITION, ELECTROLYTE MEMBRANE, WATER ELECTROLYSIS DEVICE, AND METHOD FOR PRODUCING HYDROGEN

Resumen de: WO2026191911A1

The purpose of the present disclosure is to provide: a polymer which has excellent chemical durability, particularly excellent alkali durability; and an electrolyte membrane using the polymer. The electrolyte membrane formed from said polymer is very useful in alkaline water electrolysis application.　This polymer has a constituent unit represented by formula (1). (In formula (1), A is formula (2), B is formula (3), C is formula (4), and n is an integer of 0-20. In formulae (2) to (4), Z represents a halogen-containing group or an ion-exchange group; X represents a bonding position to Y; and l and m each independently represent an integer of 0-20. The symbol * represents a bond.)

REDOX MEDIATED GAS EVOLUTION

Resumen de: US20260275536A1

An electrochemical system produces a gas from an aqueous solution. A liquid is circulated from a half-cell to a reaction vessel and then returned to the half-cell. A redox mediator in the liquid is converted from a first state to a second state in the half-cell and reacts to form a gas in the reaction chamber while being returned to its first state. The circulating liquid also includes a high molecular weight linear polymer or a viscoelastic surfactant which forms wormlike micelles enabling it to be in a state of elastic turbulence and the reaction chamber is configured to compel changes of flow direction so that the liquid is in a state of elastic turbulence as it flows through the reaction chamber. The half-cell may be configured such that the liquid is in a state of elastic turbulence as it flows through the half-cell.

ALKALINE ELECTROLYZER STRUCTURE

Resumen de: US20260275544A1

The disclosure describes an alkaline electrolyzer structure with: a bipolar plate containing four through-holes, so as to allow a first electrolyte and a second electrolyte to flow through the bipolar plate;four electrically insulating rings each containing a central void and each being intended to be inserted into each respective through-hole in the thickness of the bipolar plate, so as to reduce the cross-sectional area of the through-hole and so as to form an electrical insulation between one of the electrolytes and the bipolar plate, when one of the electrolytes passes through the central void of the ring.

ENCAPSULATED ALKALINE ELECTROLYSIS DEVICE

Resumen de: WO2026190173A1

An encapsulated alkaline electrolysis device comprising a sealed casing (1), a plurality of parallel metal plates (2) separated from each other by a space (3) for water to flow between the parallel metal plates (2), comprising two first dielectric parts (4) at the ends of the parallel metal plates (2), a plurality of second dielectric parts with comb-shaped cross-section (8) at the edges of the parallel metal plates (2) with clearances (9) between the second dielectric parts (8) and a plurality of dielectric spacers (10) in the clearances (9), wherein each spacer (10) comprises an end flat face (11 ) with four legs (12) at the corners and an inner flat face (13) with a plurality of slots (14) in correspondence with the spaces (3) between the parallel metal plates (2), and some protrusions (16) on the edges of the parallel metal plates (2).

ELECTROLYSIS SYSTEM AND METHOD FOR OPERATING AN ELECTROLYSIS UNIT

Resumen de: WO2026190203A1

The disclosure relates to a method for operating an electrolysis unit, the unit comprising at least one solid oxide electrolysis cell. The electrolysis cell comprises: a process electrode; an oxy electrode; a solid electrolyte providing ionic contact between the process and oxy electrodes; a process chamber interfacing the process electrode; a first process opening coupled to the process chamber for supplying a process feed gas; a second process opening coupled to the process chamber for discharging a product gas; an oxy chamber interfacing the oxy electrode; a first oxy opening coupled to the oxy chamber for supplying a flush gas; and a second oxy opening coupled to the oxy chamber for discharging oxygen. The method comprises the steps of: operating the electrolysis unit to produce oxygen in the oxy chamber; and discharging said oxygen from the oxy chamber through both the first oxy opening and the second oxy opening.

Separator mit einem Auftrennungsmittel

Resumen de: DE102025109316A1

Die Erfindung betrifft einen Separator (10) umfassend zumindest Folgendes:- zumindest einen Einlass (11) zum Einleiten zumindest eines Fluidgemisches (FG) in den Separator (10), wobei das Fluidgemisch (FG) zumindest ein erstes Fluid (F1) und ein zweites Fluid (F2) umfasst,- zumindest einen ersten Auslass (12) zum Abführen des ersten Fluids (F1),- zumindest einen zweiten Auslass (13) zum Abführen des zweiten Fluids (F2), wobei in dem Separator (10) zumindest ein Auftrennungsmittel (14) zur Auftrennung des Fluidgemisches (FG) in das erste Fluid (F1) und das zweite Fluid (F2) angeordnet ist.Ferner betrifft die Erfindung einen Elektrolyseur (100).

AMMONIA DECOMPOSITION CATALYST, METHOD FOR PRODUCING SAME, AND METHOD FOR PRODUCING HYDROGEN

Resumen de: WO2026191572A1

One embodiment of the present invention relates to an ammonia decomposition catalyst which contains cobalt (A), barium (B), and cerium (C), wherein the content of an alkali metal in the catalyst is 0.01 mol or less with respect to 1 mol of the cobalt (A).

LOW CARBON HYDROGEN AND HYDROGEN DERIVATIVES PRODUCTION FROM CARBON DIOXIDE AND METHANE

Resumen de: WO2026190503A1

The present invention relates to a method and a system for producing synthesis gas and low carbon hydrogen and low carbon hydrogen derivatives by converting carbon dioxide (CO2) and methane (CH4) to carbon monoxide (CO), hydrogen (H2) and carbon (C), and producing low carbon hydrogen (H2) and hydrogen derivatives.

HEAT EXCHANGER, AND ELECTROCHEMICAL SYSTEM COMPRISING SUCH AN EXCHANGER

Nº publicación: WO2026189969A1 17/09/2026

Solicitante:

GENVIA [FR]
SCHLUMBERGER TECH CORPORATION [US]
SCHLUMBERGER CANADA LTD [CA]
SERVICES PETROLIERS SCHLUMBERGER [FR]
SCHLUMBERGER TECH B V [NL]
GENVIA
SCHLUMBERGER TECHNOLOGY CORPORATION
SCHLUMBERGER CANADA LIMITED
SERVICES P\u00C9TROLIERS SCHLUMBERGER
SCHLUMBERGER TECHNOLOGY B.V.

Resumen de: WO2026189969A1

The invention relates to a heat exchanger (100) for heat exchange between several fluids; - the heat exchanger (100) being manufactured by 3D printing; - the heat exchanger (100) comprising several groups of channels (102-120), each channel, through which one of the fluids passes, connecting an inlet for the fluid into the exchanger (100) to an outlet for the fluid out of the exchanger (100); - the groups of channels (102-120) being arranged such that one channel of one group (102-120) through which one fluid passes faces another channel of another group (102-120) through which another fluid passes in order to carry out a heat exchange between the fluids. It also relates to an electrochemical system comprising such a heat exchanger.