Patents Assigned to L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation
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Patent number: 11808407Abstract: The invention relates to a pressurized gas container, in particular a gas cylinder, having an internal volume for gas storage, a fluid-distributing valve, a pressure sensor and microprocessor-based control means. The microprocessor-based control means are configured to detect filling of the gas container with gas, by comparing said at least one pressure value measured by the pressure sensor with at least one predefined and stored reference pressure threshold value; then to initiate a timer on the basis of a detection of filling of the gas container with gas; and to trigger a warning when the timer exceeds a given period calculated from the initiation of the timer.Type: GrantFiled: March 4, 2021Date of Patent: November 7, 2023Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges ClaudeInventors: Sofia Andre Dias, Federica Bellingeri
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Patent number: 11806677Abstract: A preprocessing method comprises a sintering step of heating a solid material container filled with a solid material using a temperature which is lower than either the melting point or sublimation of the solid material, whichever is lower, and crystallizing at least part of the solid material, and an impurity removal step of heating the solid material container filled with the solid material using a temperature which is lower than either the melting point or sublimation of the solid material, whichever is lower, and removing at least part of the impurities included in the solid material.Type: GrantFiled: December 6, 2018Date of Patent: November 7, 2023Assignees: L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation des Procedes Georges Claude, American Air Liquide, Inc.Inventors: Kohei Tarutani, Jean-Marc Girard, Nicolas Blasco, Stefan Wiese, Guillaume Husson
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Publication number: 20230349513Abstract: Plant and method for storing and distributing pressurized liquefied cryogenic fluid, comprising a liquefied gas source and a distribution member, comprising a first fluid inlet connected to the liquefied gas source and a second end intended to be connected to a user of the pressurized liquefied gas supplied by the distribution member, the source comprising a first liquefied gas store configured to store and supply the liquefied gas to the distribution member at a first determined pressure, the source comprising a second liquefied gas store configured to store the liquefied gas at a second determined pressure which is lower than the first pressure, the plant comprising a connecting pipe having a valve assembly connecting the first and second liquefied gas stores, the plant comprising a filling pipe having a valve assembly and having a first end connected to the second liquefied gas store and a second end intended to be connected to a mobile store for supplying liquefied gas to fill the source.Type: ApplicationFiled: December 11, 2020Publication date: November 2, 2023Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l?Exploitation des Procedes Georges ClaudeInventor: Jean-Marc BERNHARDT
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Patent number: 11802044Abstract: A process is proposed for producing pure hydrogen by steam reforming of a feed gas comprising hydrocarbons, preferably natural gas or naphtha, with a simultaneously low and preferably adjustable export steam flow rate. The process includes the steam reforming of the feed gas, for which the heat of reaction required is provided by combustion of one or more fuel gases with combustion air in a multitude of burners arranged within the reformer furnace. According to the invention, the combustion air, before being introduced into the burners, is heated by means of at least one heat exchanger in indirect heat exchange with the hot flue gas to temperatures of at least 530° C.Type: GrantFiled: September 23, 2021Date of Patent: October 31, 2023Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges ClaudeInventors: Swatantra Kumar Shrivastava, Dieter Ulber, Mirko Huebel
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Patent number: 11801474Abstract: A method of transporting hydrogen and natural gas by means of a natural gas conduit system is proposed, especially by means of an existing natural gas conduit system. According to the invention, the hydrogen is recovered only downstream of one or preferably multiple natural gas consumers. This resulted in a stepwise increase in the hydrogen content in the natural gas-hydrogen mixture transported, and the subsequent recovery of the pure hydrogen can be affected more easily and efficiently.Type: GrantFiled: November 10, 2021Date of Patent: October 31, 2023Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation Georges ClaudeInventors: André Bauer, Piotr Jozwik, Dominik Pedzich
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Patent number: 11794400Abstract: A method for manufacturing a composite pressurized-fluid vessel including winding a first polyolefin resin-based tape thereby forming a first layer of the vessel, depositing an intermediate second layer on the first layer, consisting of a material having variable permeability properties depending on the temperature and permeability below a pre-determined temperature threshold and non-permeability above the temperature threshold, winding a second resin-based tape on the intermediate second layer thereby forming a third layer, and cooling the intermediate second layer to a temperature below the temperature threshold while the first and third layers are each kept at a temperature above the melting temperature of their resin. Wherein the tape forming the third layer is based on a different resin from the first layer and during the step of depositing the intermediate second layer.Type: GrantFiled: November 2, 2020Date of Patent: October 24, 2023Assignee: L'Air Liquide, Société, Anonyme pour l'Etude et l'Exploitation des Procédés Georges ClaudeInventor: Philippe Papin
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Publication number: 20230332299Abstract: The invention relates to an electrolysis device and method for producing molecular hydrogen, the device comprising a negative electrode compartment for reducing H2O into H2 and a positive electrode compartment comprising circulating supercapacitive particles in contact with a conductive substrate. Such a device or method advantageously comprises a power supply provided by one or more photovoltaic cells.Type: ApplicationFiled: June 29, 2021Publication date: October 19, 2023Applicants: Centre national de la recherche scientifique, INSTITUT PHOTOVOLTAÏQUE D'ILE DE FRANCE (IPVF), L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE, ELECTRICITE DE FRANCE, TotalEnergies OneTechInventor: David AYME-PERROT
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Patent number: 11784041Abstract: The disclosed lanthanide precursor compounds include a cyclopentadienyl ligand having at least one aliphatic group as a substituent and at least one bidentate ligand. These precursors are suitable for depositing lanthanide containing films.Type: GrantFiled: February 8, 2022Date of Patent: October 10, 2023Assignees: L'Air Liquide, Sociéte Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude, American Air Liquide, Inc.Inventors: Daehyeon Kim, Junhyun Song, Wontae Noh, Venkateswara R. Pallem
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Patent number: 11781082Abstract: The invention relates to a process and a plant for removing thiols from synthesis gas. Thiols and optionally thiophene and carbon disulfide are absorbed in a dedicated absorption stage with methanol as physical absorption medium. Methanol laden with at least thiols is freed of thiols in a stripping stage with methanol vapours as stripping gas and the methanol vapours-containing thiols are freed of methanol in a scrubbing stage. The process according to the invention minimizes methanol losses and the amounts of coolant required for the process.Type: GrantFiled: December 8, 2021Date of Patent: October 10, 2023Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges ClaudeInventors: Sophia Schmidt, Matthias Linicus, Hincal Leichner
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Patent number: 11780859Abstract: Compounds and method of preparation of Si—X and Ge—X compounds (X?N, P, As and Sb) via dehydrogenative coupling between the corresponding unsubstituted silanes and amines (including ammonia) or phosphines catalyzed by metallic catalysts is described. This new approach is based on the catalytic dehydrogenative coupling of a Si—H and a X—H moiety to form a Si—X containing compound and hydrogen gas (X?N, P, As and Sb). The process can be catalyzed by transition metal heterogenous catalysts such as Ru(0) on carbon, Pd(0) on MgO) as well as transition metal organometallic complexes that act as homogeneous catalysts. The —Si—X products produced by dehydrogenative coupling are inherently halogen free. Said compounds can be useful for the deposition of thin films by chemical vapor deposition or atomic layer deposition of Si-containing films.Type: GrantFiled: February 4, 2022Date of Patent: October 10, 2023Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges ClaudeInventors: Antonio Sanchez, Gennadiy Itov, Peng Zhang, Matthew Stephens, Manish Khandelwal
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Patent number: 11780730Abstract: A reformer tube for producing synthesis gas by steam reforming of hydrocarbon-containing input gases is proposed where an outer shell tube is divided by means of a separating tray into the reaction chamber and an exit chamber, a dumped bed of a steam-reforming-active, solid catalyst is arranged in the reaction chamber, at least one heat exchanger tube is arranged inside the reaction chamber and inside the dumped catalyst bed whose entry end is in fluid connection with the catalyst bed and whose exit end is in fluid connection with the exit chamber, wherein gas-contacted parts of the reformer tube, in particular the at least one heat exchanger tube, are fabricated from a nickel-based alloy and coated on their inside with an aluminum diffusion layer.Type: GrantFiled: November 21, 2017Date of Patent: October 10, 2023Assignee: L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges ClaudeInventors: Dieter Ulber, Sebastien Doublet, Pascal Del-Gallo, Laurent Prost
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Patent number: 11773483Abstract: A cabinet for a solid material container comprises a main body having a top wall, a side wall, and a bottom wall; an entry/exit portion which is attached to a portion of the main body, for putting in and taking out the solid material container; an exhaust duct attached to a portion of the main body; a heating portion for heating the solid material container; a temperature measuring portion for measuring a temperature of the solid material container, or of the heating portion; and a cooling blower for blowing cooling air toward the solid material container.Type: GrantFiled: May 13, 2020Date of Patent: October 3, 2023Assignee: L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges ClaudeInventor: Terumasa Koura
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Publication number: 20230304731Abstract: Certain embodiments of the invention relate to a facility for refrigerating a fluid to a cryogenic temperature, comprising a circuit for the fluid to be refrigerated, comprising an upstream end connected to a source and a downstream end connected to a refrigerated and/or liquefied fluid collection member, the facility comprising at least one exchanger for precooling the fluid leaving the upstream end, the precooling exchanger exchanging heat with a precooling circuit composed of a flow of vaporization gas from a user, the facility further comprising a heat exchanger assembly for cooling by heat exchange with the circuit of fluid to be cooled downstream of the precooling exchanger, the facility comprising a device for cooling by heat exchange with at least a part of the cooling heat exchanger assembly, said cooling device comprising a first refrigerator with a refrigeration cycle of a cycle gas in a working circuit, the cycle gas preferably comprising hydrogen and/or helium, the working circuit of the first reType: ApplicationFiled: June 28, 2021Publication date: September 28, 2023Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l?Exploitation des Procedes Georges ClaudeInventors: Pierre BARJHOUX, Golo ZICK
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Publication number: 20230296314Abstract: An air separation apparatus is provided, including an air separation unit including a low-pressure column, a mixing column, and a pure nitrogen column, wherein the low-pressure column has a first nominal diameter, the pure nitrogen column has a second nominal diameter which is smaller than the first nominal diameter, wherein the mixing column has an open cylindrical shape, with the inner diameter nominally greater than the second nominal diameter, with the pure nitrogen column located within the mixing column interior.Type: ApplicationFiled: July 22, 2020Publication date: September 21, 2023Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Alain BRIGLIA, Bowei ZHAO, Fengjie XUE
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Patent number: 11761585Abstract: Device and method for filling pressurized gas tanks, comprising a fluid transfer circuit comprising an upstream end provided with a plurality of pressurized fluid sources and a downstream end comprising at least two distribution terminals each intended to be connected to separate tanks to be filled, each source comprising a first fluid outlet connected to a first respective outlet valve, each first outlet valve being connected to each of the at least two distribution terminals via parallel transfer ducts, each of the transfer ducts comprising at least one respective isolation valve, each of the distribution terminals being fluidly connected to each first outlet valve of a source via a first direct fluid path passing through a single transfer duct and via at least one second indirect alternative fluid path successively passing through a plurality of transfer ducts.Type: GrantFiled: August 3, 2022Date of Patent: September 19, 2023Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges ClaudeInventor: Laurent Allidieres
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Patent number: 11753298Abstract: The invention relates to a process for producing hydrogen from a light hydrocarbon source, in which a synthesis gas is generated by steam methane reforming after desulfurization and optionally pre-reforming of the feedstock. The synthesis gas is enriched with hydrogen by steam conversion of carbon monoxide, and is subsequently purified in a pressure swing adsorption unit to give a pure H2 product and a residual gas mixture containing CH4, CO, H2 and CO2; in accordance with the invention, the conversion step is performed in a cooled reactor in which the heat of the conversion reaction is transferred to a fluid which feeds the burners of the reformer, or to the gas for reforming.Type: GrantFiled: November 26, 2019Date of Patent: September 12, 2023Assignee: L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges ClaudeInventors: Marie Basin, Daniel Gary, Jean-Philippe Tadiello
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Publication number: 20230278003Abstract: A packing section intended to be installed in a casing so as to form a gas/liquid separation column comprises a block for treating a fluid that has a generally cylindrical shape extending along a longitudinal direction, the treatment block being formed by a stack of plates for treating the fluid along the longitudinal direction, the treatment block having a first disc-shaped face and a second disc-shaped face that each extend in planes parallel to one another, the treatment block having an external face extending over the perimeter of said treatment block between the first disc-shaped face and the second disc-shaped face, the packing section having at least one element for holding the treatment block that extends at least partially around the external face of the treatment block, the holding element having a portion for holding the treatment plates of the treatment block in position.Type: ApplicationFiled: March 7, 2023Publication date: September 7, 2023Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l?Exploitation des Procedes Georges ClaudeInventors: Victor BAITOKARA, Vincent FAUCHER, Ludovic AMANT, Philippe DANEL, Gilles LEBAIN, Cyrille BABINET
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Publication number: 20230280093Abstract: An air separation apparatus comprises: a first rectification column, a first condensing portion, a second rectification column, a third rectification column, a second condensing portion, a fourth rectification column, a third condensing portion, and a recycling pipe for recycling a gas drawn from the third condensing portion to the second rectification column. The air separation apparatus furthermore comprises: a branch pipe branching from the recycling pipe; and a control unit for controlling opening/closing of a valve so that a gas drawn from the third condensing portion is fed to the branch pipe for a predetermined period from the start of driving of the third condensing portion, and for controlling opening/closing of the valve so that the gas drawn from the third condensing portion is fed to the recycling pipe after the predetermined period has elapsed.Type: ApplicationFiled: March 7, 2023Publication date: September 7, 2023Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l Exploitation des Procedes Georges ClaudeInventors: Maxime RANCHOUX, Shinji TOMITA
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Publication number: 20230278004Abstract: A casing intended to be equipped with at least one section of packing for a gas/liquid separation column comprises at least a tubular wall extending along a longitudinal direction between two longitudinal ends and an internal face of which contributes to delimiting a housing for the section of packing, the tubular wall contributing to delimiting, at one of its longitudinal ends, an entry opening, the casing comprising an end wall located at the opposite longitudinal end to the entry opening, the casing comprising at least a first hooping device and at least a second hooping device which are positioned around the tubular wall of the casing in contact with an external face of the tubular wall, the first hooping device comprising at least one zone of connection with a movement system for the moving of the casing, the second hooping device having a longitudinal dimension shorter than a longitudinal dimension of the first hooping device.Type: ApplicationFiled: January 27, 2023Publication date: September 7, 2023Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l?Exploitation des Procedes Georges ClaudeInventors: Vincent FAUCHER, Manuel DOS REIS, Vincent MARET, Luis TORBADO, Alain APPEL, Eric BIRET, Laurent LECLERC
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Patent number: 11745150Abstract: An installation for rearing animals includes an injector; a water inlet line and a gas inlet line arriving in the injector; a source of oxygen or a gas mixture including oxygen, capable of delivering oxygen into the gas line; and a water recirculation loop including: a water tank, at atmospheric pressure, to supply the injector with fresh water; a coil capable of receiving water charged with dissolved oxygen from the injector through a pump, wherein the coil creates a water/oxygen contact time; and an overflow valve, to have the water resulting from the coil passed in order to be able to direct the water entirely to the animals' watering or partially to the animals' watering and partially back to the water tank. A method for rearing animals includes boosting water with dissolved oxygen up to saturation for animals' watering.Type: GrantFiled: November 8, 2018Date of Patent: September 5, 2023Assignee: L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges ClaudeInventors: Franck Cousin, Dominique Ibarra, Philippe Campo, Pauline Le Dru