Absstract of: EP4549617A1
A process for the preparation of a saturated or ethylenically unsaturated aliphatic or cycloaliphatic compound comprising the following steps:(a) providing hydrogen with a molar share of deuterium ≤ 100 ppm, based on the total hydrogen content, by electrolysis of water using electrical power generated at least in part from non-fossil energy,(b) at least partially hydrogenating an ethylenically unsaturated compound to form the corresponding saturated compound, or at least partially hydrogenating an acetylenically unsaturated compound to form the corresponding saturated or ethylenically unsaturated compound
Absstract of: EP4549621A1
A process for the preparation of amines comprising the following steps:(a) providing hydrogen with a molar share of deuterium ≤ 100 ppm, based on the total hydrogen content, by electrolysis of water using electrical power generated at least in part from non-fossil energy,(b) reacting the hydrogen from step (a) with nitrogen to form ammonia,(c) reacting the ammonia from step (b) with an alcohol R-OH in the presence of hydrogen from step (a) to form the corresponding primary, secondary and/or tertiary amines R-NH2, R2NH and/or R3N.
Absstract of: EP4549616A1
A process for the preparation of amines comprising the following steps:(a) providing hydrogen with a molar share of deuterium ≤ 100 ppm, based on the total hydrogen content, by electrolysis of water using electrical power generated at least in part from non-fossil energy,(b) reacting the hydrogen from step (a) with nitrogen to form ammonia,(c) reacting the ammonia from step (b) with a carbonyl compound (I) R1R2C=O (I)in the presence of hydrogen from step (a) to form the corresponding amine (II) R1R2HC-NH2 (II).
Absstract of: EP4549619A1
A process for the preparation of an amine compound comprising the following steps:(a) providing hydrogen with a molar share of deuterium ≤ 100 ppm, based on the total hydrogen content, by electrolysis of water using electrical power generated at least in part from non-fossil energy,(b) at least partially hydrogenating a nitro compound to form the corresponding amine compound.
Absstract of: EP4549433A1
A process for the preparation of a hydrogenation product of a carbohydrate or furfural comprising the following steps:(a) providing hydrogen with a molar share of deuterium ≤ 100 ppm, based on the total hydrogen content, by electrolysis of water using electrical power generated at least in part from non-fossil energy,(b) at least partially hydrogenating a carbohydrate or furfural to form the corresponding hydrogenation product of the carbohydrate or furfural.
Absstract of: EP4549618A1
A process for the preparation of amines comprising the following steps:(a) providing hydrogen with a molar share of deuterium ≤ 100 ppm, preferably in the range of from 10 to 95 ppm, more preferably in the range of from 15 to 90 ppm, most preferably in the range of from 20 to 80 ppm, especially in the range of from 30 to 75 ppm, based on the total hydrogen content, by electrolysis of water using electrical power generated at least in part from non-fossil energy,(b) reacting the hydrogen from step (a) with nitrogen to form ammonia,(c) reacting the ammonia from step (b) with a nitrile compound or hydrogen cyanide (I) R-CN (I)in the presence of hydrogen from step (a) to form the corresponding amine (II) RCH2-NH2 (II).
Absstract of: WO2024003272A1
The invention relates to a high pressure electrolyzer module comprising a first external electrode which has a shape permitting to define a delimited volume, a second inner electrode provided inside the delimited volume defined by the first external electrode, an electrolyte provided under high pressure inside the first external electrode and an electrical power source, wherein the electrical power source is controlled so as to alternate potential to the first and second electrodes such that they are alternatively submitted to oxidation and reduction..
Absstract of: WO2024003510A1
Method for upgrading carbon dioxide comprising: (a) a step of providing a gaseous effluent to be upgraded containing a volume ratio of carbon dioxide of at least 0.5; (b) a step of electrolysis of the gaseous effluent to be upgraded producing a first effluent containing carbon monoxide, during which at least one portion of the carbon dioxide contained in the gaseous effluent to be upgraded is converted to carbon monoxide by electrolysis; (c) at least one step of converting the carbon monoxide from the first effluent, which step is catalyzed by a plasma generated by a dielectric barrier discharge process coupled to a catalyst, said step (c) producing a value-added effluent, during which at least one portion of the carbon monoxide contained in the first effluent is converted to at least one product chosen from methane and/or dihydrogen.
Absstract of: EP4549624A1
Disclosed is a system and method for alternately performing urea electrolysis-based hydrogen production and carbon reduction, and an application system. The system for alternately performing urea electrolysis-based hydrogen production and carbon reduction includes a housing, a first electrode chamber, a second electrode chamber and a third electrode chamber. A first electrode, a first separator, a second electrode, a second separator and a third electrode are sequentially arranged in the housing. The first electrode chamber is a closed cavity formed by the first electrode, the first separator and the inner wall of the housing, and is used for producing a hydrogen evolution reaction. The third electrode chamber and the second electrode chamber can alternately produce the oxidation reaction of urea and the reduction reaction of carbon dioxide.
Absstract of: EP4549630A1
The embodiments of the present disclosure disclose an electrolytic cell operation temperature control method and system based on heat balance. The method comprises: acquiring an actual cell front temperature of an electrolytic cell that is collected by a temperature collection device; if the actual cell front temperature deviates from a preset cell front temperature, controlling a refrigerant flow controller to control an inlet temperature of an electrolyte, wherein the preset cell front temperature is determined based on a preset cell end temperature, a correction coefficient, net heat power of the electrolytic cell, a volume flowrate of the electrolyte, a density of the electrolyte and a specific heat capacity of the electrolyte; within a current iteration period, determining an opening degree of the refrigerant flow controller based on the actual cell front temperature and the preset cell front temperature; and at the beginning of a subsequent iteration period, determining a set cell front temperature after iteration based on the preset cell end temperature, the correction coefficient, size information of the electrolytic cell, an actually measured voltage, an actually measured current, an actually measured surface temperature of the electrolytic cell, an actually measured ambient temperature, the volume flowrate of the electrolyte, the density of the electrolyte and the specific heat capacity of the electrolyte.
Absstract of: EP4549628A1
This control device is for a hydrogen production facility and comprises: a plurality of electrolysis cells for electrolyzing water or steam; and a plurality of rectifiers for supplying DC power to each of the plurality of electrolysis cells. The control device is provided with: a degradation coefficient acquisition unit configured to acquire a plurality of degradation coefficients indicating the degrees of deterioration of the respective electrolysis cells, an individual necessary current calculation unit configured to calculate, on the basis of a total necessary current corresponding to a hydrogen generation volume required for the hydrogen production facility and the plurality of degradation coefficients, a plurality of individual necessary currents indicating necessary currents required for the electrolysis cells; and a control unit configured to control the respective rectifiers on the basis of the plurality of individual necessary currents. The degradation coefficient acquisition unit is configured to acquire, for the respective electrolysis cells, the degradation coefficients on the basis of a first correlation indicating the correlation between applied voltages to the respective electrolysis cells and currents flowing through circuits including the electrolysis cells at a beginning of life of the electrolysis cells, and a second correlation indicating the correlation at an end of life of the electrolysis cells.
Absstract of: GB2635098A
A process for generating electricity, hydrogen, sulphuric acid and hydrogen sulphide comprising the steps of i) combusting hydrogen sulphide with air/oxygen in a combustion chamber; ii) passing the products of the combustion to generate electricity by turning a turbine or to generate steam; ii) the separation of the products of the combustion using water to isolate the nitrogen and sulphur dioxide; iii) the passing of the sulphur dioxide into an electrolyzer, wherein the electrolysis of sulphur dioxide and water generates hydrogen and sulphuric acid; iv) the sulphuric acid is placed in a reactor with sulphate-reducing bacteria to produce hydrogen sulphide that subsequently used as the fuel of the process and combusted in a combustion chamber to restart the cycle. The nitrogen, hydrogen, and carbon dioxide that are produced during the process but are not used as part of the process are stored using conventional storage methods. The hydrogen sulphide may be produced by placing the sulphuric acid in a microbial reactor with sulphate-reducing bacteria.
Absstract of: EP4549622A1
A process for the hydrogenation of carbonyl compounds consisting of the following steps:(a) providing hydrogen with a molar share of deuterium ≤ 100 ppm, based on the total hydrogen content, by electrolysis of water using electrical power generated at least in part from non-fossil energy,(b) hydrogenating a carbonyl compound using the hydrogen provided in step (a) to form the corresponding hydrogenation product, wherein at least one carbonyl group of the carbonyl compound is hydrogenated.
Absstract of: EP4549419A1
A process for the preparation of a cycloaliphatic or heterocycloaliphatic compound containing at least one aromatic or heteroaromatic ring comprising the following steps:(a) providing hydrogen with a molar share of deuterium ≤ 100 ppm, based on the total hydrogen content, by electrolysis of water using electrical power generated at least in part from non-fossil energy,(b) hydrogenating an aromatic or heteroaromatic compound using the hydrogen provided in step (a) to form the corresponding cycloaliphatic or heterocycloaliphatic compound wherein the at least one aromatic or heteroaromatic ring is partially or fully hydrogenated.
Absstract of: EP4549620A1
A process for the preparation of amines comprising the following steps:(a) providing hydrogen with a molar share of deuterium ≤ 100 ppm, preferably in the range of from 10 to 95 ppm, more preferably in the range of from 15 to 90 ppm, most preferably in the range of from 20 to 80 ppm, especially in the range of from 30 to 75 ppm, based on the total hydrogen content, by electrolysis of water using electrical power generated at least in part from non-fossil energy,(b) reacting the hydrogen from step (a) with a nitrile compound or hydrogen cyanide (I) R-CN (I)to form the corresponding primary amine (II), secondary amine (III) and/or tertiary amine IV) RCH2-NH2 (II), (RCH2)2NH (III) (RCH2)3N (IV)or mixture thereof.
Absstract of: CN119317736A
An electrolyte membrane including a composite catalyst layer is provided. The membrane has a thickness of less than or equal to 100 mu m and is a single adhesive polymer membrane comprising a plurality of ion conducting polymer layers. The composite catalyst layer comprises particles of an unsupported composite catalyst dispersed in an ion conducting polymer, and the layer has a thickness in the range of from 5 mu m to 30 mu m and including 5 mu m and 30 mu m. Also provided are a catalyst coated film (CCM) incorporating the electrolyte membrane, and a method of manufacturing the electrolyte membrane.
Absstract of: AU2023300562A1
Bipolar plates (1) adapted for use in an electrolyser cell stack (4) and wherein each plate comprises a plate midplane (2) whereby the plate (1) comprises spaced apart uniform spacers (7) extending in opposed directions from the midplane (2). All spacers (7) are arranged along concentric circles (8) in the midplane (2) with spacers (7) alternatingly protruding in opposite directions relative to the midplane (2) along each concentric circle (8) and an even number of spacers (7) are provided in each circumferential circle (8), apart from an innermost circle (9) which comprises a single spacer (7).
Absstract of: AU2023296834A1
The present invention describes a method for storing electricity and producing liquefied natural gas (LNG) or synthetic natural gas referred to as substitute natural gas (SNG) and using carbon dioxide and producing electricity, natural gas (NG) or synthetic natural gas (SNG).
Absstract of: WO2024070179A1
A method for producing a tantalum nitride material that includes a nitriding step that heats a precursor containing a lithium tantalum composite oxide in the presence of a nitrogen compound.
Absstract of: CN119332263A
The invention discloses an alkaline electrolysis water hydrogen production system and method capable of deeply reducing the hydrogen content in oxygen in multiple ways, a hydrogen side flash tank is arranged in the alkaline electrolysis water hydrogen production system, and dissolved hydrogen deep removal is carried out on hydrogen side alkali liquor passing through a gas-liquid separator through the hydrogen side flash tank; a mixed alkali liquor flash tank is arranged in an alkaline electrolysis water hydrogen production system, and deep removal of dissolved oxygen and dissolved hydrogen is carried out on mixed alkali liquor through the mixed alkali liquor flash tank; a hydrogen side pressure adjusting part capable of adjusting the pressure of a cathode chamber is arranged in a hydrogen side gas-liquid separator system, and an oxygen side pressure adjusting part capable of adjusting the pressure of an anode chamber is arranged in an oxygen side gas-liquid separation system, so that the pressure of the anode chamber of the alkaline electrolytic cell is higher than that of the cathode chamber, and the amount of hydrogen entering the anode chamber from the cathode chamber through a diaphragm is reduced; the concentration of hydrogen in oxygen in the water electrolysis hydrogen production system is reduced, and the safety of the system is improved.
Absstract of: CN119332263A
The invention discloses an alkaline electrolysis water hydrogen production system and method capable of deeply reducing the hydrogen content in oxygen in multiple ways, a hydrogen side flash tank is arranged in the alkaline electrolysis water hydrogen production system, and dissolved hydrogen deep removal is carried out on hydrogen side alkali liquor passing through a gas-liquid separator through the hydrogen side flash tank; a mixed alkali liquor flash tank is arranged in an alkaline electrolysis water hydrogen production system, and deep removal of dissolved oxygen and dissolved hydrogen is carried out on mixed alkali liquor through the mixed alkali liquor flash tank; a hydrogen side pressure adjusting part capable of adjusting the pressure of a cathode chamber is arranged in a hydrogen side gas-liquid separator system, and an oxygen side pressure adjusting part capable of adjusting the pressure of an anode chamber is arranged in an oxygen side gas-liquid separation system, so that the pressure of the anode chamber of the alkaline electrolytic cell is higher than that of the cathode chamber, and the amount of hydrogen entering the anode chamber from the cathode chamber through a diaphragm is reduced; the concentration of hydrogen in oxygen in the water electrolysis hydrogen production system is reduced, and the safety of the system is improved.
Absstract of: CN119332263A
The invention discloses an alkaline electrolysis water hydrogen production system and method capable of deeply reducing the hydrogen content in oxygen in multiple ways, a hydrogen side flash tank is arranged in the alkaline electrolysis water hydrogen production system, and dissolved hydrogen deep removal is carried out on hydrogen side alkali liquor passing through a gas-liquid separator through the hydrogen side flash tank; a mixed alkali liquor flash tank is arranged in an alkaline electrolysis water hydrogen production system, and deep removal of dissolved oxygen and dissolved hydrogen is carried out on mixed alkali liquor through the mixed alkali liquor flash tank; a hydrogen side pressure adjusting part capable of adjusting the pressure of a cathode chamber is arranged in a hydrogen side gas-liquid separator system, and an oxygen side pressure adjusting part capable of adjusting the pressure of an anode chamber is arranged in an oxygen side gas-liquid separation system, so that the pressure of the anode chamber of the alkaline electrolytic cell is higher than that of the cathode chamber, and the amount of hydrogen entering the anode chamber from the cathode chamber through a diaphragm is reduced; the concentration of hydrogen in oxygen in the water electrolysis hydrogen production system is reduced, and the safety of the system is improved.
Absstract of: AU2023262052A1
A water splitting system includes a hydrogen production chamber including a hydrogen production port, an oxygen production chamber including an oxygen collection port, an ion exchange membrane coupling the hydrogen production chamber and the oxygen production chamber, and a photocatalytic structure including a first catalytic portion disposed in the hydrogen production chamber and a second catalytic portion disposed in the oxygen production chamber. The first catalytic portion is configured for production of hydrogen via the hydrogen production port. The second catalytic portion is configured for production of oxygen via the oxygen production port.
Absstract of: US2023021049A1
A system for hydrogen generation includes at least one cabinet defining a first volume, a second volume, and a third volume, where the first volume, the second volume and the third volume are fluidically isolated from each other, a water circuit located in the first volume, an electrochemical module including an electrolyzer electrochemical stack located in the second volume, a hydrogen circuit located in the third volume, at least one first fluid connector fluidly connecting the water circuit and the electrolyzer electrochemical stack, and at least one second fluid connector fluidly connecting the electrolyzer electrochemical stack and the hydrogen circuit.
Nº publicación: JP2025071098A 02/05/2025
Applicant:
エレメント・ワン・コーポレーション
Absstract of: SA523442668B1
Hydrogen purification devices and their components are disclosed. In some embodiments, the devices may include at least one foil-microscreen assembly disposed between and secured to first and second end frames. The at least one foil-microscreen assembly may include at least one hydrogen-selective membrane and at least one microscreen structure including a non-porous planar sheet having a plurality of apertures forming a plurality of fluid passages. The planar sheet may include generally opposed planar surfaces configured to provide support to the permeate side. The plurality of fluid passages may extend between the opposed surfaces. The at least one hydrogen-selective membrane may be metallurgically bonded to the at least one microscreen structure. Fig 1.