Patents Assigned to L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
  • 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: 11319449
    Abstract: Processes of selectively depositing a metal-containing film comprise: providing a surface having a plurality of materials exposed thereon simultaneously, and exposing the surface to a vapor of a metal-containing film-forming composition that contains a precursor having the formula: LxM(—N(R)—(CR?2)n—NR?2) wherein M is a Group 12, Group 13, Group 14, Group 15, Group IV or Group V element; x+1 is the oxidation state of the M; L is an anionic ligand, independently selected from dialkylamine, alkoxy, alkylimine, bis(trialkylsilylamine), amidinate, betadiketonate, keto-imine, halide, or the like; R, R? each are independently a C1-C10 linear, branched or cyclic alkyl, alkenyl, or trialkylsilyl group; R? is H or a C1-C10 linear, branched or cyclic alkyl, alkenyl or trialkylsilyl group; n=1-4, wherein at least one of the materials is at least partially blocked by a blocking agent from the deposition of the metal-containing film through a vapor deposition process.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: May 3, 2022
    Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Wontae Noh, Jooho Lee, Jean-Marc Girard
  • 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
  • Publication number: 20220128392
    Abstract: A measured quantity of gas is introduced into a gas reservoir via a filling station including a flow meter. The quantity of gas transferred by the filling station to the reservoir is measured by the flow meter. The measured quantity of gas is reduced or increased by a predetermined corrective amount to yield a corrected gas quantity.
    Type: Application
    Filed: January 7, 2022
    Publication date: April 28, 2022
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventor: Thibaut FRANCOIS
  • Publication number: 20220128301
    Abstract: A method and apparatus for producing a high-pressure gas from an air separation unit is provided, in which the method includes the steps of introducing a cold air feed into a distillation column system under conditions effective for separating the cold air feed into a first air gas and a second air gas; withdrawing the first and second air gases from the distillation column system and warming said first and second air gases in a main heat exchanger, wherein the first air gas is withdrawn from the distillation column system at a medium pressure; splitting the first air gas into a first fraction and a second fraction; expanding the first fraction in a turbine; and compressing the second fraction in a booster to a pressure that is higher than the medium pressure, wherein the booster is powered by the turbine
    Type: Application
    Filed: October 13, 2021
    Publication date: April 28, 2022
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l?Exploitation des Procedes Georges Claude
    Inventors: Jianwei CAO, Lin XU, Eric DAY, Baptiste FARA
  • Patent number: 11311836
    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: June 1, 2021
    Date of Patent: April 26, 2022
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Jean-Marc Chareyre, Veronique Grabie, Golo Zick
  • Patent number: 11313490
    Abstract: A valve for pressurized fluid having 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 having 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 with the ability to move on the body 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: April 26, 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
  • Publication number: 20220120383
    Abstract: Pressurized gas tanks are filled from at least one gas source using a transfer circuit, a set of buffer storage tanks and at least one compressor. The set of buffer storage tanks may be filled with pressurized gas from the at least one gas source by pressure balancing via balancing lines without going through the at least one compressor. The set of buffer storage tanks may also be filled with pressurized gas from the at least one gas source that is compressed by the at least one compressor.
    Type: Application
    Filed: October 14, 2021
    Publication date: April 21, 2022
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Etienne WERLEN, Clemence DEVILLIERS
  • Publication number: 20220106190
    Abstract: A method and system for purification of helium and CO2 from a stream containing at least Helium, CO2, nitrogen or methane uses a combination of cryogenic, membrane and adsorption technologies.
    Type: Application
    Filed: October 5, 2021
    Publication date: April 7, 2022
    Applicants: Air Liquide Advanced Technologies US LLC, L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Paul TERRIEN, Pierre-Philippe GUERIF, Vincent FOLLACA, Alain GUILLARD, Youssef TAZI
  • Patent number: 11291946
    Abstract: A process for producing biomethane by scrubbing a biogas feed stream includes introducing the feed gas stream into a pretreatment unit wherein a CO2-depleted gas stream is partially separated from a CO2 stream and an oxygen stream and is compressed to a pressure P1 above 25 bar abs. Subjecting the CO2-depleted gas stream to cryogenic separation in a distillation column to separate a nitrogen stream and produce a CH4-enriched stream, the distillation column comprising n plates, n being an integer between 8 and 100. Recovering a pressurized CH4-enriched stream by pumping the CO2-depleted gas stream to a pressure P2 above 25 bar absolute.
    Type: Grant
    Filed: December 17, 2018
    Date of Patent: April 5, 2022
    Assignee: L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Paul Terrien, Nicolas Chantant
  • Patent number: 11287087
    Abstract: A device and process for refuelling containers with pressurized gas comprising a pressurized gas source, a transfer circuit comprising one upstream end, the device comprising a refrigeration system for cooling the gas flowing from the gas source prior to its entering into the container, the refrigeration system comprising a refrigerant cooling loop circuit comprising, arranged in series, a compressor, a condenser section, an expansion valve and an evaporator section, the refrigeration system comprising a cold source in heat exchange with the condenser section and a heat exchanger located in the transfer circuit and comprising a heat exchange section between the gas flowing in the transfer circuit and the evaporator section, the refrigerant cooling loop circuit comprising a bypass conduit comprising an upstream end connected to the outlet of the compressor and a downstream end connected to the refrigerant cooling loop circuit upstream the compressor inlet and bypassing the condenser section and expansion valve
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: March 29, 2022
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Etienne Werlen, Marcus Buck
  • Publication number: 20220090854
    Abstract: A liquefied gas cooling apparatus including: a gas flow path for carrying a liquefied gas that is liquefied by cooling; and a refrigeration unit including a refrigerating cycle formed by a compressor, a cooling unit, and an expander. The compressor is driven through an electric motor contained in a sealed housing together with a compressor mechanism.
    Type: Application
    Filed: August 27, 2021
    Publication date: March 24, 2022
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l?Exploitation des Procedes Georges Claude
    Inventors: Michael A. TURNEY, Pierre-Philippe GUERIF, Cecile GONDRAND, Alain GUILLARD
  • Publication number: 20220090856
    Abstract: An apparatus for the separation of air by cryogenic distillation comprises three columns, including two concentric columns, the external diameter of the third column being at most equal to that of the second distillation column, a pipe for feeding the third column with air, a reflux pipe connected to an intermediate level of the upper section of the first distillation column in order to withdraw a liquid enriched in nitrogen, the pipe being connected to the head of the second distillation column and passing through a region of the third column devoid of heat exchange means and of mass exchange means, and an intermediate pipe for withdrawing a liquid at an intermediate level of the first distillation column.
    Type: Application
    Filed: September 21, 2021
    Publication date: March 24, 2022
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l?Exploitation des Procedes Georges Claude
    Inventor: Patrick LE BOT
  • Patent number: 11280491
    Abstract: A radiative recuperator preheats oxidant and/or fuel for combustion at one or more burners of a furnace. The recuperator includes a duct, at least portions of which comprise a material having a thermal conductivity of greater than 1 W/(m·K), preferably greater than 3 W/(m·K), that receives hot flue gas produced by the burner(s). The duct radiatively transfers heat to oxidant or fuel (for preheating) flowing through one or more metallic pipes disposed in between the duct and an insulating wall.
    Type: Grant
    Filed: August 16, 2019
    Date of Patent: March 22, 2022
    Assignees: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude, American Air Liquide, Inc.
    Inventors: Taekyu Kang, James J. F. McAndrew, Remi Tsiava, Jiefu Ma, Ryan Adelman, Henri Chevrel
  • Patent number: 11278843
    Abstract: A process for purifying a feed gas including methane and heavy hydrocarbons, including: step a): cooling the feed gas in a heat exchanger; step b): introducing the resulting into a first phase separator to produce a liquid stream depleted in methane and enriched in heavy hydrocarbons and a gas stream; step c): separating the gas stream in a membrane from which a methane-enriched permeate stream and a partially condensed residue stream exit; step d): introducing the residue stream from step c) into a second phase separator vessel in order to produce a liquid stream and a gas stream; step e): introducing at least one portion of the gas stream resulting from step d) into a JT expansion means; and step f): heating at least one portion of the expanded stream in the heat exchanger used in step a) counter-current to the feed stream in order to cool the latter.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: March 22, 2022
    Assignees: L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude, Air Liquide Advanced Technologies U.S. LLC
    Inventors: Paul Terrien, Pascal Marty, Yong Ding
  • Patent number: 11274112
    Abstract: 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(O) on carbon, Pd(O) 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: Grant
    Filed: October 14, 2019
    Date of Patent: March 15, 2022
    Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Antonio Sanchez, Gennadiy Itov, Peng Zhang, Matthew Damien Stephens, Manish Khandelwal
  • Patent number: 11274069
    Abstract: Disclosed are mono-substituted cyclopentadienes, metal cyclopentadienyl complexes and methods for synthesizing them. The disclosed mono-substituted cyclopentadienes are synthesized by a selective catalytic carbon-carbon coupling reaction. The disclosed metal cyclopentadienyl complexes are synthesized from the disclosed mono-substituted cyclopentadienes. The disclosed metal cyclopentadienyl complexes include main group metal and transition metal cyclopentadienyl complexes, and may be used as deposition precursors contained in film forming compositions for film depositions in semiconductor industry, such as ALD, CVD, SOD, etc.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: March 15, 2022
    Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventor: Grigory Nikiforov