Patents Assigned to L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
  • Patent number: 10501831
    Abstract: The invention relates to a microstructure of an alloy for a tube for reformers, having an austenitic matrix structure, characterised in that: i) primary micrometric precipitates in the form of M23C6-type carbides, where M=Fe, Ni or Cr, and/or M(C,N)-type carbides, where M==Nb or Ti, are formed during the solidification of the alloy; ii) secondary nanometric precipitates in the form of M23C6-type carbides, where M=Fe, Ni or Cr and/or M(C,N)-type carbides, where M==Nb or Ti, are formed during the activation of the tube; and iii) between 0.1 and 0.3% of Ni16Si7Nb6-type intermetallic precipitates is formed during the use of the tube.
    Type: Grant
    Filed: September 16, 2015
    Date of Patent: December 10, 2019
    Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Anna Fraczkiewicz, Karolina Maminska, Pascal Del-Gallo, Jader Furtado, Daniel Gary
  • Patent number: 10500425
    Abstract: Full hood respirator comprising a fluidtight flexible bag intended to be slipped over the head of a user, the flexible bag being provided with a transparent window and comprising, in its lower part, a rigid base element of annular overall shape intended to be positioned around the neck of the user, the base element comprising a tubular oxygen reservoir of pressurized oxygen provided with a calibrated outlet orifice opening into the internal volume of the flexible bag, characterized in that the base element comprises at least two rigid parts connected by an articulation, the two parts being movable relative to one another between a furled first position that prevents a head from entering the hood through the base element and an unfurled position of use that allows a head to enter the hood through the base element.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: December 10, 2019
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Christian Rolland, Vincent Graziani, Pierrick Cohard, Rachid Makhlouche, Xavier Roussin-Bouchard
  • Patent number: 10501484
    Abstract: Halogen free amine substituted trisilylamine and tridisilylamine compounds and a method of their preparation via dehydrogenative coupling between the corresponding unsubstituted trisilylames and amines catalyzed by transition metal catalysts is described. This new approach is based on the catalytic dehydrocoupling of a Si—H and a N—H moiety to form an Si—N containing compound and hydrogen gas. 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—N containing products are halide free. Such 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: February 9, 2018
    Date of Patent: December 10, 2019
    Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Antonio Sanchez, Jean-Marc Girard, Gennadiy Itov, Manish Khandelwal, Matthew Damien Stephens, Peng Zhang
  • Publication number: 20190368728
    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: Application
    Filed: August 16, 2019
    Publication date: December 5, 2019
    Applicants: American Air Liquide, Inc., L'Air Liquide, Societe Anonyme pour l'Etude et l?Exploitation des Procedes Georges Claude
    Inventors: Taekyu KANG, James J.F. MCANDREW, Remi TSIAVA, Jiefu MA, Ryan ADELMAN, Henri CHEVREL
  • Patent number: 10494387
    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(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: Grant
    Filed: February 7, 2018
    Date of Patent: December 3, 2019
    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: 10486968
    Abstract: The invention relates to a plant for production of hydrogen, and to a method for operating this plant, comprising a steam reforming reactor having a furnace, in which reactor water and at least one carbonaceous energy carrier are reacted to form a hydrogen-containing crude synthesis gas, and at least one cleaning device for purifying the crude synthesis gas, to which the crude synthesis gas is fed from the steam reforming via at least one feed line. According to the invention, upstream of one of the at least one cleaning devices at least one return line branches off from the feed line, through which the crude synthesis gas is at least in part recirculated into the furnace of the steam reforming reactor.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: November 26, 2019
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Dieter Ulber, Alexander Rosch, Ahmet Sari, Jan Cobbaut
  • Patent number: 10480858
    Abstract: Method of operating a rotary furnace for the production of hydraulic binder so as to reduce ring formation therein, whereby the longitudinal temperature profile in the furnace is varied during furnace operation by injecting at least one fluid other than the main fuel(s), the primary oxidizer and hot air from the material cooler with at least one continuously or discontinuously varying injection parameter.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: November 19, 2019
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Alex Grassi, Dirk Hoelscher, Bertrand Leroux, Jacques Mulon, Xavier Paubel, Remi Tsiava
  • Patent number: 10473392
    Abstract: The invention relates to a column for separating air by means of cryogenic distillation, said column comprising a shell and at least four distillation segments, including at least a first intermediate distillation segment of the low-pressure column, which is surrounded by an auxiliary shell around which a space is defined that is divided into a lower section and an upper section along the radius of the column, the intermediate segment(s) being located in an intermediate part of the low-pressure column, the capacity of the first intermediate segment being greater than that of at least one adjacent segment, and an opening being disposed in the shell between two adjacent segments, which opening can be sealed if the column is to form part of an argon production device.
    Type: Grant
    Filed: February 13, 2015
    Date of Patent: November 12, 2019
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Patrice Cavagne, Olivier De Cayeux, Natacha Haik-Beraud, Nathalie P. Schmitt
  • Patent number: 10464012
    Abstract: A process for separating undesired, in particular acidic gas constituents from a raw gas, in particular raw synthesis gas, by absorption with cold methanol as physical detergent, wherein the methanol is cooled in a compression refrigeration machine by using a multi-component coolant. The use of the coolant according to the invention provides significant advantages with regard to the compressor capacity required in the compression refrigeration machine for the provision of a defined cooling capacity.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: November 5, 2019
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Lucie Chaubet, Marc Wagner
  • Patent number: 10464049
    Abstract: A process to synthesize a catalyst performing Water-Gas shift reaction at a temperature more than 300° C. using a precursor having general formula [(Cu, Zn)1-x (Al, M)x (OH)2]x+ (An?x/n).kH2O with M=Al, La, Ga or In, A=CO3, 0.33<x<0.5, 1<n<3.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: November 5, 2019
    Assignees: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude, Alma Mater Studiorum Universita de Bologna
    Inventors: Raphaël Faure, Giuseppe Fornasari, Daniel Gary, Carlo Lucarelli, Nicola Schiaroli, Angelo Vaccari
  • Patent number: 10465904
    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: April 6, 2018
    Date of Patent: November 5, 2019
    Assignees: American Air Liquide, Inc., L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Taekyu Kang, James J. F. McAndrew, Remi Tsiava, Jiefu Ma, Ryan Adelman, Henri Chevrel
  • Patent number: 10466088
    Abstract: A method of metering the energy applied to a downstream process employing a cryogenic fluid, comprising the following steps: a) separating the liquid and gas phases of the cryogenic fluid before the cryogenic fluid reaches the downstream user process. b) Measuring the mass flow rate of the gas phase. c) Calculating the energy flow rate associated with this gas flow rate by taking into consideration the variation in enthalpy of the gas between its vaporization temperature and the gas temperature recorded at the outlet of said downstream process in real time.
    Type: Grant
    Filed: July 21, 2015
    Date of Patent: November 5, 2019
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventor: Didier Pathier
  • Patent number: 10458599
    Abstract: A storage frame for cylinders of pressurized fluid, including a primary structure and at least one storage box including at least one cylinder of pressurized fluid extending along a longitudinal axis between two ends, having at least one first retaining member configured to collaborate fixedly with one end of the at least one cylinder and blocking the rotation of the cylinder, and at least one second retaining member configured to collaborate with the other end of the cylinder.
    Type: Grant
    Filed: August 2, 2016
    Date of Patent: October 29, 2019
    Assignees: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude, Air Liquide Oil & Gas Services Limited
    Inventors: Emmanuel Baune, Guillaume Arnaud, Paul Burgin, Steve Robertson, Nils Aksnes, Tom Blakeman
  • Patent number: 10451219
    Abstract: A method for filling a tank with pressurized gaseous hydrogen from at least one source storage containing pressurized gaseous hydrogen at a first defined temperature and at a defined pressure higher than the pressure in the tank to be filled, in which hydrogen is transferred from the source storage to the tank by pressure balancing via a filling circuit having an upstream end linked to the source storage and a downstream end linked to the tank, and in which the at least one source storage exchanges heat with a member for heating the gas stored in the source storage, during at least a part of the transfer of hydrogen from the source storage to the tank, the gas contained in the source storage being heated to a second defined temperature that is higher than the first temperature.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: October 22, 2019
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventor: Baptiste Ravinel
  • Patent number: 10433564
    Abstract: The invention relates to a method for anaesthetizing animals before slaughter, by the anesthetic action of gases or gas mixtures, operated in “batch” mode, in which the live animals, preferably put together in one or more cages, are placed in a lock chamber for treatment where the animals are brought into contact with anesthetic gas, following a cycle comprising several steps characterized by different contents of anesthetic gas, characterized in that at least one of the steps is carried out using gas recovered from the lock chamber and stored in at least one capacity (2, No. 1, No. 2 etc.) for temporary storage having a variable volume.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: October 8, 2019
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Franck Cousin, Robert Ian Taylor, Etienne Charve
  • Publication number: 20190293347
    Abstract: An apparatus for producing product nitrogen gas and product argon, comprising: a first rectification column into which raw air is introduced; a second rectification column from which product nitrogen gas is drawn; a third rectification column from which product argon gas is drawn; and a first condenser configured to perform heat exchange between a gas accumulated in a column top portion of the first rectification column, and a liquid accumulated in a column bottom portion of the second rectification column, wherein an intermediate portion gas containing nitrogen is drawn from an intermediate portion of the second rectification column and merged with a condenser gas drawn from the first condenser. The merged gases are expanded and cooled by means of an expansion turbine whereby the cold thereof is utilized.
    Type: Application
    Filed: March 20, 2019
    Publication date: September 26, 2019
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Kenji HIROSE, Maxime Ranchoux, Shinji Tomita, Loic Joly
  • Patent number: 10422482
    Abstract: A device for supplying pressurized fluid including a pressurized fluid cylinder, at least one first tap connected to the pressurized fluid cylinder, the tap including an internal fluid circuit including an isolation valve, the device including an electronic apparatus for the wireless remote communication of data via electromagnetic waves, the electronic communication apparatus including a communication element designed to communicate wirelessly using at least one of the following frequency-modulation and/or phase-modulation low-consumption and long-range communication technologies: LoRa communication technology, communication technology from Sigfox, where the device includes a protective cap mounted on the cylinder in order to protect the first tap and a second tap connected detachably to the first tap, and the electronic communication apparatus being situated either on the cylinder, on the cap, on the first tap, or on the second tap.
    Type: Grant
    Filed: September 15, 2016
    Date of Patent: September 24, 2019
    Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Philippe Bernard, Patrick Bacot, David Laurent
  • Patent number: 10422529
    Abstract: The present invention relates to a heat exchanger for the supply of oxygen or of a gas mixture containing at least 50% oxygen, the temperature at the outlet of the exchanger not being below 300° C., it preferably being above 400° C., the oxygen or the oxygen-rich gas feeding one or more burners of a glass melting furnace, the heat of the combustion gases being used directly or indirectly to heat the oxygen or the oxygen-rich gas in the exchanger, in which the exchange power is between 20 and 300 kW, preferably between 40 and 250 kW and particularly preferably between 80 and 170 kW.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: September 24, 2019
    Assignees: AGC GLASS EUROPE, L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Olivier Douxchamps, Eric Baudelet, Bertrand Leroux, Gabriel Constantin, Remi Tsiava, Bruno Symoens
  • Patent number: 10421057
    Abstract: A reforming tube including a cavity emerging on either side of the tube, an external wall, an internal wall, a protection element for protecting against corrosion inserted into the cavity mirroring at least a portion of the internal wall, a space between the internal wall and the protective part, and a refractory material which fills in the space between the internal wall and the protection element.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: September 24, 2019
    Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Nicolas Richet, Hans Werner Scholz
  • Patent number: D862642
    Type: Grant
    Filed: November 28, 2016
    Date of Patent: October 8, 2019
    Assignee: L'Air Liquide, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude
    Inventors: Antoine Frenal, Olivier Ondo Ndong, Stéphane Etienne, Alexandre Vanghelder, Antoine Gibert