Patents Assigned to L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
  • Publication number: 20220196325
    Abstract: A method for operating an air separation unit having both a startup phase and a steady-state operating phase is provided.
    Type: Application
    Filed: December 17, 2020
    Publication date: June 23, 2022
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l?Exploitation des Procedes Georges Claude
    Inventors: Paul KONG, May Yee Wendy YIP
  • Publication number: 20220196326
    Abstract: A plant for separating gases from the air comprises, in the direction of circulation of the stream of air: a compression means for compressing the stream of air to a pressure P1 of between 1.15 bar abs and 2 bar abs, a TSA adsorption unit, and a cryogenic distillation unit, with the adsorption unit comprising at least two adsorbers A1 and A2 each having a parallelepipedal casing arranged horizontally and comprising: an air stream inlet and outlet, two fixed bed adsorbent masses each likewise parallelepipedal with faces parallel to the faces of the casing, and a set of volumes allowing the stream of air to traverse the two adsorbent masses horizontally, in parallel, over the whole cross section of each of the adsorbent masses and throughout their thicknesses.
    Type: Application
    Filed: February 12, 2020
    Publication date: June 23, 2022
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventor: Benoit DAVIDIAN
  • Publication number: 20220196324
    Abstract: A method for improved operation of a natural gas liquids stabilizer column, particularly a small-scale, is provided.
    Type: Application
    Filed: December 18, 2020
    Publication date: June 23, 2022
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Oriane Farges, Michael A. Turney, Pierre Costa De Beauregard
  • Patent number: 11364450
    Abstract: The invention relates to a gas/liquid separation column extending mainly along a vertical axis and comprising an external wall delimiting an internal space in which are arranged at least one first contact member in which the liquid and the gas are brought into contact and at least one dispensing device configured to collect the liquid resulting from the first contact member and to distribute it to a second contact member. At least one box for separating a two-phase fluid is arranged in the internal space of the column between the first contact member and the dispensing device against the wall of the column fed by a duct which passes through a wall of the separation box.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: June 21, 2022
    Assignee: L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Elia Cordier, Antony Correia, Vincent Faucher, Philippe Grigoletto
  • Patent number: 11359858
    Abstract: A method for liquefying ammonia can include the steps of: providing a pressurized carbon dioxide stream from a power generating facility; expanding the pressurized carbon dioxide stream to a lower pressure that is sufficient to produce a dual phase carbon dioxide fluid; introducing the dual phase carbon dioxide fluid to a gas-liquid separator; withdrawing a liquid stream from the gas-liquid separator; and liquefying an ammonia gas stream in an ammonia liquefier by indirect contact with the liquid stream from the gas-liquid separator, thereby forming a liquid ammonia stream and a gaseous carbon dioxide stream.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: June 14, 2022
    Assignee: L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Abigail Bonifacio, Vincent Follaca, Pierre-Philippe Guerif, Alain Guillard
  • Patent number: 11351517
    Abstract: A reformer tube for producing synthesis gas by steam reforming of hydrocarbon-containing feed gases, in which a structured stream reforming catalyst is used, is proposed. According to the invention, a heat exchanger tube is arranged in the interior of the structured catalyst, with the feed gas stream flowing firstly through the structured catalyst and subsequently in countercurrent through the heat exchanger tube. This improves the heat exchange between the synthesis gas product stream and the structured catalyst and the feed gas stream flowing through it, especially in the radial direction.
    Type: Grant
    Filed: September 5, 2017
    Date of Patent: June 7, 2022
    Assignee: L'Air Liquide, Societe Anonyme Pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Dieter Ulber, Daniel Gary, Laurent Prost, Jean-Philippe Tadiello, Marie Basin
  • Patent number: 11351499
    Abstract: At least some VOCs are removed from a feed gas in an adsorption unit comprising at least three adsorbers following a pressure cycle with a phase shift, wherein the feed gas comprises at least methane, carbon dioxide and volatile organic compounds (VOCs). The VOC depleted gas is fed to at least one membrane separation to produce a carbon dioxide-enriched permeate and a methane-enriched retentate. The flow of the feed gas stream is adjusted based upon one or both of a pressure or methane concentration of the gas stream entering the membrane separation unit and/or a pressure in the adsorption unit.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: June 7, 2022
    Assignee: L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Francois Barraud, Thomas Rohmer, Michael Guillin
  • Patent number: 11353262
    Abstract: A portion of feed air is expanded and cooled in front of a main heat exchanger, and is used as cold for precooling the remaining unexpanded feed air inside the main heat exchanger. A portion of the feed air precooled inside the main heat exchanger is removed to outside the main heat exchanger, expanded and cooled, and used as cold to cool the remaining unexpanded precooled feed air inside the main heat exchanger.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: June 7, 2022
    Assignee: L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventor: Kenji Hirose
  • Patent number: 11344842
    Abstract: In a method for separating a mixture containing carbon dioxide, the mixture is cooled in a heat exchanger and partially condensed and a first liquid is separated from the mixture in a first system operating at low temperature comprising at least one first phase separator and a gas from the first system is treated in a membrane system to produce a permeate and a non-permeate, the gas from the first system being divided into two portions, a first portion being sent to the membrane system without being heated and a second portion being heated to at least an intermediate temperature of the heat exchanger and then sent to the membrane system without being cooled.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: May 31, 2022
    Assignee: L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Ludovic Granados, Mathieu Leclerc, Frederick Lockwood, Paul Terrien
  • Patent number: 11346462
    Abstract: A valve for pressurized fluid including a body housing a fluid circuit having an upstream end configured to be placed in communication with a reserve of pressurized fluid and a downstream end configured to be placed in communication with a user of fluid, the circuit including a collection of valve shutter(s) having at least one shutoff valve shutter allowing the circuit to be closed or opened, the valve having a member for manually controlling the collection of valve shutter(s), the control member being mounted thereby allowing the body to move between a rest position in which the collection of valve shutter(s) is in a position in which the circuit is closed and an active position in which the control member actuates the collection of valve shutter(s) into a position in which the circuit is open with a first bore section.
    Type: Grant
    Filed: August 2, 2018
    Date of Patent: May 31, 2022
    Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Samuel Vignerol, Antoine Frenal, Denis Muller, Hervé Paoli, Morgan Lamiable, Johan Broechler, Claudio Di Filippo
  • Patent number: 11346603
    Abstract: A gas production system that can supply liquefied gas obtained by rectifying source gas as product gas continuously with high heat efficiency without using a machine that has a risk of contamination like a pump. A gas production system includes a single pressure device having a single pressurized container to which liquefied gas extracted from a rectification unit is supplied, a pressure line for extracting and vaporizing a part of the liquefied gas in the pressurized container and returning the part of the liquefied gas to the pressurized container, and a second heat exchange unit that is disposed in the pressure line, and a liquefied gas storage unit that stores liquefied gas which is led out from the pressurized container.
    Type: Grant
    Filed: May 18, 2018
    Date of Patent: May 31, 2022
    Assignee: L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Kenji Hirose, Shinji Tomita
  • Publication number: 20220163170
    Abstract: Device for storing and for supplying fluid fuel, comprising a reservoir of liquefied fuel gas in equilibrium with a gas phase, in particular hydrogen, a circuit for filling the reservoir, at least one circuit for tapping fluid from the reservoir, and at least one circuit for regulating the pressure in the reservoir, the filling circuit, tapping circuit and pressure-regulating circuit comprising a set of valves arranged in a housing separate from the reservoir, the housing being removably connected to the reservoir via a demountable mechanical coupling system, the tapping circuit, the pressure-regulating circuit and the filling circuit comprising a set of demountable fluidic connectors situated at the junction between the reservoir and the housing and configured to allow the separation between portions of circuits situated in the reservoir and in the housing during the demounting of the housing with respect to the reservoir.
    Type: Application
    Filed: March 12, 2020
    Publication date: May 26, 2022
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Emmanuel BENSADOUN, Patrick BRAVAIS, Patrick SANGLAN
  • Publication number: 20220163432
    Abstract: Process for vaporizing purge liquid from a cryogenic liquid vaporizer, the liquid containing at least one impurity, in which the purge liquid is withdrawn from a bath of liquid surrounding the vaporizer or resulting from the vaporizer, all of the purge liquid is vaporized in a heater, characterized in that the content of the at least one impurity in at least one portion, or even all of the heated vaporized liquid is analysed and the flow rate of at least one portion, or even all of the heated vaporized liquid is measured.
    Type: Application
    Filed: November 19, 2021
    Publication date: May 26, 2022
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l?Exploitation des Procedes Georges Claude
    Inventor: Benoit DAVIDIAN
  • Patent number: 11339925
    Abstract: A station and method for refilling a tank or tanks with pressurized gas in which liquefied gas is vaporized in a vaporizer. One portion of the vaporized gas is compressed to produce a compressed gas. Another portion of the vaporized gas is not compressed but instead is fed to a heat exchanger where it is used to cool the compressed gas. The thus-warmed gas is reinjected into a filling line that feeds the liquefied gas to the vaporizer.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: May 24, 2022
    Assignee: L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Sosthene Grandjean, Thierry Ott
  • Publication number: 20220152552
    Abstract: The invention relates to a method for membrane permeation of a gas flow including methane and carbon dioxide, wherein said gas flow is cooled to a temperature of 0° C. to ?60° C. before being fed into a membrane separation unit.
    Type: Application
    Filed: October 20, 2021
    Publication date: May 19, 2022
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Sarah BIGEARD, Delphine GARNAUD, David J. HASSE, Sudhir S. KULKARNI, Edgar S. SANDERS, JR., Golo ZICK
  • Publication number: 20220146047
    Abstract: Device for storing and supplying fluid fuel, comprising a tank for liquefied fuel gas balanced with a gaseous phase, in particular a hydrogen gaseous phase, a circuit for filling the tank, at least one circuit for extracting fluid from the tank, at least one circuit for controlling the pressure in the tank, the circuits for filling, extracting and controlling the pressure comprising a valve assembly arranged in a housing which is separate from the tank, the housing being detachably connected to the tank via a removable mechanical coupling system, the extraction circuit, the pressure control circuit and the filling circuit comprising an assembly of removable fluid connections which are located at the junction between the tank and the housing and configured to enable separation between the portions of circuits located in the tank and in the housing when removing the housing from the tank.
    Type: Application
    Filed: March 12, 2020
    Publication date: May 12, 2022
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Emmanuel BENSADOUN, Patrick BRAVAIS, Patrick SANGLAN
  • Publication number: 20220146050
    Abstract: Tank for storing liquefied gas comprising a sealed housing defining a storage space for the liquefied gas, the housing comprising a lower end and an upper end, the tank comprising a device for measuring the level of liquid in the housing, the device for measuring the level of liquid comprising, arranged in the housing, a float and a guide for moving the float, characterized in that the guide comprises an end connected to an upper portion of the housing and a lower end connected to a lower portion of the housing, the float being mounted moveably in translation on the guide such that the float is free to slide along the guide, the device for measuring the level of liquid further comprising at least one float position sensor.
    Type: Application
    Filed: March 4, 2020
    Publication date: May 12, 2022
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Nicolas JANNIN, Jerome LOSCO, Thomas FAYER
  • Publication number: 20220136654
    Abstract: Device and method for filling pressurized-gas tanks, comprising a fluid transfer circuit provided with an upstream end intended to be connected to a source of gas and at least two parallel downstream ends intended to be connected to distinct tanks that are to be filled, the transfer circuit comprising a temperature regulating member for regulating the temperature of the gas transferred from the source towards the downstream ends, the gas temperature regulating member being positioned in the transfer circuit upstream of the at least two downstream ends, which means to say that the gas temperature regulating member is common to the at least two downstream ends, characterized in that the at least two downstream ends of the circuit each comprise a respective control member for controlling the flow rate and/or the pressure of the transferred gas and configured to control the flow rate and/or the pressure in each of the downstream ends independently.
    Type: Application
    Filed: November 5, 2021
    Publication date: May 5, 2022
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Anh Thao THIEU, Louis DEBESOMBES, Vincent FAIRY
  • Patent number: 11320195
    Abstract: A chamber for a distillation column that is to operate at a temperature below 0° C., comprises at least four walls, which in use are vertical, and a roof, the chamber being designed to contain at least one distillation column, at least one other element that is to operate at a cryogenic temperature, and insulation, at least one wall being convex.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: May 3, 2022
    Assignee: L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventor: Franck Lemaire
  • Patent number: 11320198
    Abstract: A method for starting up an air separation plant having a higher-pressure column, a lower-pressure column, and a falling film vaporizer disposed within a lower section of the lower-pressure column is provided. The method can include the steps of: introducing a cooled and compressed air stream into the higher pressure column; withdrawing an oxygen-enriched liquid stream from a bottom section of the higher-pressure column and introducing said oxygen-enriched liquid stream to an upper section of the lower-pressure column; and exchanging heat between nitrogen gas coming from a top section of the higher-pressure column and liquid oxygen from the lower-pressure column within the falling film vaporizer. During a start-up period, flow of liquid oxygen is at least reduced to the closed core. This reduces the available heat exchange area during start up, which increases ?T and ?P in the condenser/reboiler.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: May 3, 2022
    Assignee: L'Air Liquide Société Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventor: Paul Kong