Patents Assigned to L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés George Claude
  • Publication number: 20210222948
    Abstract: A liquefaction apparatus that automatically adjusts the load on the liquefaction apparatus correspondingly with an upper limit value of contracted power in different time slots, and which is capable of maximizing the amount of liquefied product produced and of achieving optimum operating efficiency is provided.
    Type: Application
    Filed: January 22, 2021
    Publication date: July 22, 2021
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l?Exploitation des Procedes Georges Claude
    Inventor: Takuya KANEDA
  • Publication number: 20210222832
    Abstract: Station for filling one or more tank(s) with pressurized gas, in particular pressurized hydrogen, comprising at least two pressurized gas source stores, a transfer pipe having an upstream end connected parallel to the source stores and a downstream end intended to be connected to a tank to be filled, the station comprising a valve assembly for controlling the transfer of gas between the sources and the tank to be filled and an electronic controller connected to the valve assembly and configured to control the valve assembly, the electronic controller being configured to implement successive transfers of gas between the source stores and the tank to be filled via successive pressure balancing sequences, the electronic controller being configured to determine the temperature attained by the gas in the source stores or by the source stores during transfers of gas and, when said attained temperature is below a determined threshold, to prevent or to interrupt this transfer of gas or to reduce the flow of gas trans
    Type: Application
    Filed: January 20, 2021
    Publication date: July 22, 2021
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Laurent ALLIDIERES, Mathilde WEBER, Etienne WERLEN
  • Publication number: 20210222949
    Abstract: The invention relates to a system for controlling an argon flow rate of a fluid at the outlet of an assembly of at least one distillation column in order to reach a target dioxygen level (SP).
    Type: Application
    Filed: May 22, 2019
    Publication date: July 22, 2021
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l?Exploitation des Procedes Georges Claude
    Inventor: Marc BASTID
  • Patent number: 11066319
    Abstract: The invention relates to a method and facility for manufacturing a fiberglass material, in which melted glass is produced in a melting furnace heated via combustion of a fuel with an oxygen-rich oxidant. The fumes generated are used to preheat a combustion reagent in two steps: a first step in which air is heated via heat exchange with the fumes, and a second step in which the combustion reagent is preheated via heat exchange with the hot air. The air is then used in the method for converting the melted glass into a fiberglass material.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: July 20, 2021
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Luc Jarry, Youssef Joumani, Gregoire Beasse
  • Patent number: 11067551
    Abstract: The present disclosure relates to a device for measuring the amount of oxygen present in a gas to be analyze. The device includes at least one member for measuring the amount of oxygen, a first inlet in communication with the measuring member for the supply of gas to be analyzed, and an outlet for the discharge of said analyzed gas. The device also includes a second inlet intended to communicate with the measuring member, allowing said device to be supplied selectively with a calibration gas having a known amount of oxygen, such that the measurement of the amount of oxygen present in the calibration gas makes it possible to determine a potential drift of the measurement of said measuring member relative to the actual known amount of oxygen present in the calibration gas.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: July 20, 2021
    Assignees: ZODIAC AEROTECHNICS, L'Air Liquide Societe Anonyme Pour L'Etude et L'Exploitation Des Procedes Georges Claude
    Inventors: Olivier Vandroux, Nelly Giroud, Norbert Ponsinet, Jorge Gaspar, Gilles Delaitre, Jean-Michel Cazenave, Philippe Boggetto
  • Patent number: 11066300
    Abstract: A method for achieving a gas with a variable hydrogen to carbon monoxide ratio in a system including splitting a warm raw syngas stream into a first portion and a second portion, the second portioning having a portion flowrate. Sending the first portion of the warm raw syngas stream a carbon monoxide separator, thereby producing a first hydrogen enriched stream and a carbon monoxide rich stream. Sending the second portion of the warm raw syngas stream to a water/gas shift reactor, thereby producing a shifted syngas stream. Combining the first hydrogen enriched stream and the second hydrogen enriched stream and sending the combined stream to a hydrogen separator, thereby producing a product hydrogen stream having a hydrogen flowrate, and varying the hydrogen flowrate by increasing the portion flowrate.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: July 20, 2021
    Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Heon-Yong Poh, Alexander Roesch, Joseph T. Stroffolino, IV
  • Patent number: 11066347
    Abstract: Plant and process for the production of liquid methane from a feed gas stream comprising at least methane and carbon dioxide. A feed gas stream is injected into a CO2 crystallizer in countercurrent fashion against a stream of predominantly liquid methane, thereby crystallizing amounts of carbon dioxide from the feed gas stream. Gaseous methane recovered from the CO2 crystallizer is liquefied at a liquefaction exchanger.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: July 20, 2021
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Antonio Trueba, Jorge Ernesto Tovar Ramos, Frederic Crayssac, Solene Valentin, Marine Andrich
  • Patent number: 11066310
    Abstract: Conditioning of tungsten pentachloride to form specific crystalline phases is disclosed. The specific crystalline phases permit stable vapor pressures over extended periods of time during vapor deposition and etching processes.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: July 20, 2021
    Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Feng Li, Sonia Plaza, Jean-Marc Girard, Nicolas Blasco, Yumin Liu
  • Publication number: 20210214218
    Abstract: In a process for separating a mixture containing carbon monoxide, hydrogen and carbon dioxide, the mixture cooled in a heat exchanger is contacted by a stream of liquid methanol at a temperature below ?40° C. to produce carbon dioxide enriched methanol and a carbon dioxide depleted gas relative to the cooled mixture, the carbon dioxide depleted gas is cooled in the heat exchanger and is sent to a separation unit to produce a carbon monoxide enriched stream and a hydrogen enriched stream and the streams enriched in carbon monoxide and hydrogen are heated in the heat exchanger by exchanging heat with the mixture.
    Type: Application
    Filed: January 11, 2021
    Publication date: July 15, 2021
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l?Exploitation des Procedes Georges Claude
    Inventors: Erwan LE GULUDEC, Antoine HERNANDEZ, Guillaume TEIXEIRA, Benoit DAVIDIAN, Matthias LINICUS
  • Patent number: 11060037
    Abstract: A process for the purification of a gas rich in hydrocarbons and comprising at least 10 ppm by volume of hydrocarbons having at least six carbon atoms nitrogen.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: July 13, 2021
    Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Nicolas Chambron, Pierre Costa De Beauregard, Henri Paradowski
  • Patent number: 11060665
    Abstract: Installation and method for filling tanks with pressurized gas in which fluid supplied to the buffer storage reservoir is at a relatively higher first temperature while fluid is being withdrawn from the buffer storage reservoir to fill a tank and fluid is supplied to the buffer storage reservoir at a relatively lower second temperature when fluid is not being withdrawn from the buffer storage reservoir to fill a tank.
    Type: Grant
    Filed: November 15, 2019
    Date of Patent: July 13, 2021
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Anh Thao Thieu, Guillaume Cardon
  • Patent number: 11060666
    Abstract: A method for filling tanks with pressurized gas via a filling station comprising at least one source of pressurized gas and a fluid circuit for transferring the gas, comprising a first end linked to the at least one gas source and a second end provided with a transfer line intended to be removably connected to the tanks to be filled, the circuit comprising a first isolation valve, a flow or pressure regulation member, a heat exchanger for cooling the gas transferred to the tank to be filled and a second isolation valve, the method comprising successively filling a first tank then a second separate tank, characterized in that, on completion of the filling of the first tank, the first and second isolation valves are closed to trap a reserve supply of pressurized gas in the circuit between said two valves and in that the reserve supply of gas is used to fill the second tank.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: July 13, 2021
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Baptiste Ravinel, Julie Flynn
  • Publication number: 20210207885
    Abstract: The air separation system can include: a process control unit 201 for controlling components constituting the air separation system; an oxygen concentration estimating unit 202 for estimating, by calculation, the oxygen concentration of oxygen-enriched liquid that accumulates in a column bottom portion of the higher-pressure column; a flow rate estimating unit for estimating, by calculation, the flow rate of oxygen-enriched liquid that has been discharged from the column bottom portion of the higher-pressure column and that is to be introduced into a distillation portion of the lower-pressure column; and a target temperature calculating unit for calculating a target temperature of an argon extraction portion on the basis of the flow rate of feed air that has passed through at least a portion of the main heat exchanger 1 and that is to be sent to an expansion turbine, the oxygen concentration of the oxygen-enriched liquid, and the flow rate of the oxygen-enriched liquid.
    Type: Application
    Filed: January 5, 2021
    Publication date: July 8, 2021
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Takuya KANEDA, Hiromu MORI
  • Patent number: 11052345
    Abstract: A facility and method for membrane permeation treatment of a feed gas flow containing at least methane and carbon dioxide that includes a compressor, a pressure measurement device, at least one valve, and first, second, third, and fourth membrane separation units for separation of CO2 from CH4 to permeates enriched in CO2 and retentates enriched in CH4, respectively. The at least one valve adjusts the number of membranes combined and connected to the flow of gas entering into at least one of the membrane separation units as a function of the pressure recorded by the pressure measurement device.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: July 6, 2021
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Jean-Marc Chareyre, Veronique Grabie, Golo Zick
  • Publication number: 20210199376
    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: Application
    Filed: December 31, 2019
    Publication date: July 1, 2021
    Applicant: 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
  • Publication number: 20210199378
    Abstract: A method and apparatus for reducing heat bumps following regeneration of adsorbers in an air separation unit is provided. Certain embodiments of the current invention utilize the two waste streams available at very different temperatures from the two main exchangers (low-pressure and high-pressure core exchangers) for regeneration of the front-end purification adsorbers in the air separation unit (ASU) to reduce its energy consumption without compromising the stability of process. Certain embodiments help to eliminate/minimize high air temperature disturbance (heat bump) for the process downstream of the front-end purification unit during the transition from offline to online.
    Type: Application
    Filed: December 30, 2019
    Publication date: July 1, 2021
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l?Exploitation des Procedes Georges Claude
    Inventors: Paul KONG, Minh Huy PHAM, May Yee Wendy YIP
  • Publication number: 20210198095
    Abstract: A hydrogen refilling station for filling tanks of fuel cell electric vehicles includes a liquid hydrogen tank that feeds liquid hydrogen to an upstream end of a filling circuit that also includes a heat exchanger. The heat exchanger exchanges heat between the liquid hydrogen and heat transfer fluid flows to thereby cool the heat transfer fluid and vaporize the liquid hydrogen to provide a supply of high pressure hydrogen gas for filling hydrogen-fueled vehicle tanks at a downstream end of the circuit. Because the liquid hydrogen is surrounded by the heat transfer fluid inside the heat exchanger, little if any fogging occurs.
    Type: Application
    Filed: December 22, 2020
    Publication date: July 1, 2021
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventor: Vincent FAIRY
  • Publication number: 20210199245
    Abstract: A method for increasing the available net positive suction head (NPSHa) for a cryogenic pump is provided. In one embodiment, the method can include the steps of: increasing a pressure within a liquid storage tank to at least a pumping set point, wherein the pumping set point is configured to cause the NPSHa to exceed the NPSHr; starting the cryogenic pump, thereby sending liquid from within the liquid storage tank through the pump and to an end user; stopping the cryogenic pump, thereby stopping flow of the liquid from the liquid storage tank; and resetting the pressure within the liquid storage tank to at least a storage set point.
    Type: Application
    Filed: December 30, 2019
    Publication date: July 1, 2021
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Paul KONG, Minh Huy PHAM
  • Publication number: 20210199244
    Abstract: A hydrogen refilling station for filling tanks of fuel cell electric vehicles includes a liquid hydrogen tank that feeds liquid hydrogen to an upstream end of a filling circuit that also includes a heat exchanger. The heat exchanger exchanges heat between the liquid hydrogen and heat transfer fluid flows to thereby cool the heat transfer fluid and vaporize the liquid hydrogen to provide a supply of high pressure hydrogen gas for filling hydrogen-fueled vehicle tanks at a downstream end of the circuit. Because the liquid hydrogen is surrounded by the heat transfer fluid inside the heat exchanger, little if any fogging occurs.
    Type: Application
    Filed: December 22, 2020
    Publication date: July 1, 2021
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventor: Vincent FAIRY
  • Patent number: 11045760
    Abstract: A facility and method for membrane permeation treatment of a feed gas flow containing at least methane and carbon dioxide that includes a compressor, a pressure measurement device, at least one valve, and first, second, third, and fourth membrane separation units for separation of CO2 from CH4 to permeates enriched in CO2 and retentates enriched in CH4, respectively. A temperature of the first retentate is adjusted at an inlet of the second membrane separation unit with at least one heat exchanger as a function of the measured CH4 concentration in such a way so as to reduce the determined difference.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: June 29, 2021
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Jean-Marc Chareyre, Veronique Grabie, Golo Zick