Patents Assigned to L'Exploitation Des
  • Apparatus and methods for gas separation
    Patent number: 7699907
    Abstract: Methods and systems for producing hydrogen are provided. In one embodiment, a method of producing hydrogen comprises reacting a feed source with steam to produce a gas mixture containing hydrogen and a residue gas; introducing the gas mixture into a purification unit; adsorbing the residue gas; and discharging at least a portion of the hydrogen. The method further comprises depressurizing the purification unit; discharging at least a portion of the residue gas during the depressurization; recycling the residue gas to the feed source; and discharging the residue gas remaining in the purification unit. In another embodiment, the method includes discharging a portion of the residue gas during the depressurization such that the residue gas discharged has a higher hydrocarbon content than the secondary product remaining in the purification unit.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: April 20, 2010
    Assignees: Air Liquide Process & Construction, Inc., L'Air Liquid, Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Bhadra S. Grover, Paul Wentink
  • Process of making hollow fibers
    Patent number: 7691318
    Abstract: The invention provides a spinnerette assembly for forming hollow fibers. The spinnerette assembly contains an extrusion orifice and a fiber-forming material passage in communication with the extrusion orifice. A hollow needle extends through the extrusion orifice in a concentric manner to define an annular passage surrounding the needle. The fiber-forming material passage includes a fiber-forming material inlet port extending from a surface of the spinnerette assembly to an interior of the assembly and a transverse passage extending from the fiber-forming material port to the annular passage surrounding the needle. A bore forming fluid passage communicates with the interior of the needle.
    Type: Grant
    Filed: September 14, 2004
    Date of Patent: April 6, 2010
    Assignee: L'Air Liquide - Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventor: Samuel Earl Moore
  • Method And Device For Separating A Mixture of At Least Hydrogen, Nitrogen, and Carbon Monoxide By Cryogenic Distillation
    Publication number: 20100071411
    Abstract: A method for separating a mixture of carbon monoxide, nitrogen, hydrogen and optionally methane by cryogenic distillation.
    Type: Application
    Filed: December 12, 2007
    Publication date: March 25, 2010
    Applicant: L'Air Liquide SocieteAnonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Arthur Darde, Antoine Hernandez
  • Method And Device For Cooling A Liquid
    Publication number: 20100071387
    Abstract: The method for cooling a liquid (2) in which a coolant comprising a refrigeration-liquefied gas is introduced into the liquid (2) and the corresponding device (1) make possible, in an advantageously simple manner, the production of cooled liquids (2), which, for example, can be used as process water in the production of freshly mixed concrete. In this case the enthalpy content of the coolant, preferably of liquid nitrogen, is utilized in a good manner, by firstly using the vaporization enthalpy, and secondly the heating of the nitrogen after vaporization up to ice temperature, for cooling the liquid.
    Type: Application
    Filed: April 3, 2008
    Publication date: March 25, 2010
    Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Gerhard Gross, Johannes Beuse, Thomas Kutz, Friedel Theissen, Marc Sporing
  • Thermal Switch
    Publication number: 20100065263
    Abstract: The invention concerns a thermal switch, characterized in that said switch comprises a thermal connection element consisting of an integral single part forming a body of thermally conductive homogeneous composition as well as an actuator for opening said switch by mechanical rupture of said thermal connection element.
    Type: Application
    Filed: February 6, 2007
    Publication date: March 18, 2010
    Applicant: L'Air Liquide Societe Anonyme Pour L'Etude et l'Exploitation Des Procedes Georges Claude
    Inventors: Julien Tanchon, Thierry Trollier
  • Method For Absorbing The Displacement Of A Plunger In A Linear Electrodynamic Motor Under The Influence of An External Force
    Publication number: 20100066276
    Abstract: The invention relates to a method for absorbing the displacement, under the influence of an external force, of at least one plunger (10,20) in a linear electrodynamic motor comprising a least an induction coil (11, 21) magnetically coupled with the plunger. Said method comprises the steps of: detecting in said induction coil a current induced (I?ind) amplified relative to the induced current. The invention can be applied to cryogenic machines on board space ships.
    Type: Application
    Filed: October 10, 2007
    Publication date: March 18, 2010
    Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Gerald Aigouy, Jonathan Buquet, Thierry Trollier
  • Method and Apparatus for the Fluorination of Plastics
    Publication number: 20100063206
    Abstract: The gas-phase fluorination of plastic articles is effected in a reaction chamber 1 into which the plastic articles to be fluorinated are introduced. The gas-phase fluorination is effected at normal or atmospheric ambient pressure of about 1 kPa in the reaction chamber. The gas-phase fluorination can be carried out statically or dynamically. The flushing carried out before the gas-phase fluorination for complete or partial removal of atmospheric oxygen from the reaction chamber 1 can also be effected at atmospheric pressure in the reaction chamber. The reaction chamber 1 is equipped with a cover 2 and metering valves V0, V1, V2 for air, inert gas and gas mixture comprising fluorine and one or more inert gases are present on the entrance side of the reaction chamber, which is not vacuum-tight and hence also cannot be evacuated. The metering valves are connected to the reaction chamber 1 via a flow meter 4.
    Type: Application
    Filed: March 13, 2007
    Publication date: March 11, 2010
    Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Proceded Georges Claude
    Inventors: Rolf Van Bonn, Joachim Barbe
  • Gas Filling and Distribution Head Which is Equipped with a Connection Interface and Tank Including One Such Head
    Publication number: 20100059142
    Abstract: The invention relates to a gas filling and distribution head which is intended to be disposed in a hole in a pressurised gas storage tank. The inventive head includes a mounting segment which is intended to be housed in the hole in the tank and an expansion segment which houses a pre-expansion device, said pre-expansion device being arranged in relation to the mounting segment such as to be housed at least partially inside the tank when the head is in the mounted position. The invention is characterised in that it includes a connection interface that is intended to co-operate removably with a control device for filling the tank with gas and/or extracting gas from same.
    Type: Application
    Filed: October 18, 2006
    Publication date: March 11, 2010
    Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventor: Arnaud DENIS
  • Purification Or Separation Process Using Several Out-of-Phase Adsorbers
    Publication number: 20100058804
    Abstract: A method of purifying or separating a gas using a number of adsorbers on phase-shifted cycles, and more particularly to the purification of atmospheric air, prior to cryogenic separation of the said air by cryogenic distillation is provided. More specifically still, it relates to the purification of air with a TSA cycle using radial adsorbers.
    Type: Application
    Filed: December 27, 2007
    Publication date: March 11, 2010
    Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Christian Monereau, Ingrid Bellec
  • Method for Making Beer
    Publication number: 20100055236
    Abstract: The invention relates to a method for making beer which comprises, in particular, a step of cooking or boiling a wort, and which is characterized in that, in one or more steps which are carried out before said step of cooking or boiling the wort, a reducing gas or mixture of reducing gases is injected into the medium of the step(s) under consideration, so as to lower the oxido-reduction potential of the medium under consideration to a level below what it is when the medium has simply been degassed using a neutral gas.
    Type: Application
    Filed: November 13, 2007
    Publication date: March 4, 2010
    Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Dominique Ibarra, Patrick Boivin, Mbaka Malanda
  • Method And Apparatus For Producing Carbon Monoxide By Cryogenic Distillation
    Publication number: 20100047150
    Abstract: A method and an apparatus for producing carbon dioxide by cryogenic distillation is provided.
    Type: Application
    Filed: January 30, 2008
    Publication date: February 25, 2010
    Applicant: LiAir Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Alain Briglia, Arthur Darde, Natacha Haik-Beraud, Marie-Khuny Khy
  • PSA Method Using A Composite Adsorption Bed Comprising An Adsorbent And PCM Agglomerates
    Publication number: 20100043635
    Abstract: A thermocyclic process having a short cycle time, typically a cycle time of less 30 minutes, especially a PSA (Pressure Swing Adsorption) process, using agglomerates that contain phase change materials (PCMs), so as to reduce the thermal effects that said thermocyclic process is subjected to during each cycle is provide.
    Type: Application
    Filed: August 31, 2007
    Publication date: February 25, 2010
    Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Vincent Gueret, Christian Monereau, Pluton Pullumbi
  • Use of a Mixture of Carbon Dioxide Snow and Liquid Nitrogen in Quick Freezing Applications
    Publication number: 20100047424
    Abstract: Method for cooling a product, all or part of the cooling being carried out by contact of the product with a mixture of carbon dioxide snow (CO2) and liquid nitrogen.
    Type: Application
    Filed: April 26, 2007
    Publication date: February 25, 2010
    Applicant: L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE
    Inventors: Franck Cousin, Willy Frederick, Nicolas Fachon
  • Method For Processing The Surface Of Polymer Substrates, Substrates Thus Obtained And Use Thereof In The Production Of Multilayered Materials
    Publication number: 20100035496
    Abstract: The invention relates to a method for processing the surface of polymer substrates, during which the substrate is subjected to a dielectric-barrier electric discharge of the filament type in a gaseous processing mixture containing at least a carrier gas and an active gas and under a pressure substantially equal to the atmospheric pressure, characterized in that the active gas is selected from the group including a mono-unsaturated or poly-unsaturated linear or branched hydrocarbon preferably containing 2 to 10 carbon atoms, more preferably 2 to 5 carbon atoms and even more preferably 2 or 3 carbon atoms, the residual oxygen content of the processing mixture being lower than 250 ppm, preferably lower than 100 ppm, and more preferably lower than 50 ppm.
    Type: Application
    Filed: October 26, 2007
    Publication date: February 11, 2010
    Applicant: L'Air Liquide Societe Anonyme Pour l'Etude Et l'Exploitation Des Procedes Georges Claude
    Inventors: Panayotis Cocolios, Frederic Noel
  • Method and Apparatus for Injecting a Jet of Fluid with a Variable Direction and/or Opening
    Publication number: 20100032020
    Abstract: The invention relates to an apparatus for injecting at least one jet of fluid, in which the direction and/or opening of at least one of the jets may be variable, comprising means of injecting at least one main fluid jet, means for injecting at least one secondary fluid jet, and means for causing at least one main fluid jet to interact with at least one secondary fluid jet and producing a fluid jet resulting from this interaction whose direction and/or opening are variable; as well as the associated method; and the uses of these.
    Type: Application
    Filed: July 5, 2007
    Publication date: February 11, 2010
    Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Bernard Labegorre, Nicolas Docquier, Bernard Zamuner, Thomas Lederlin, Thierry Poinsot, Vincent Faivre
  • Purification Of An H2/CO Mixture With Lead Control Of The Regeneration Heater
    Publication number: 20100024641
    Abstract: A method of purifying a gaseous mixture rich in hydrogen and in carbon monoxide, commonly termed an H2/CO mixture or syngas, by adsorption prior to treating it cryogenically with a view to producing a CO-rich fraction, and/or one or more H2/CO mixtures of determined content, such as a mixture of 50 mol % H2/50 mol % CO and generally a hydrogen-rich fraction is provided.
    Type: Application
    Filed: January 10, 2008
    Publication date: February 4, 2010
    Applicant: L'AIR LIQUIDE SOCIETE ANONYME POUR L-ETUDE ET L EXPLOITATION DES PROCEDES GEORGES CLAUDE
    Inventors: Christian Monereau, Guillaume Rodrigues, Ingrid Bellec, Francois Demoisy
  • Method for processing aluminium in a rotary or a reverberating furnace
    Patent number: 7655067
    Abstract: The invention relates to a method for processing aluminum in a furnace consisting in introducing an aluminum-containing material and possibly one or several types of salt into the furnace, melting said material by heating with the aid of at least one burner supplied with a combustive material and fuel in such a way that a molten aluminum possibly covered with a slag containing, in particular alumina and at least one salt is produced and in measuring a carbon monoxide and/or hydrogen concentration in the furnace atmosphere or in a smoke at the exit of the furnace. Oxygen content in the combustive material supplying at least one burner is greater than 10% by volume, preferably greater than 21% by volume.
    Type: Grant
    Filed: February 7, 2005
    Date of Patent: February 2, 2010
    Assignee: L'Air Liquide-Societe Anonyme a Directoire et Conseil de Surveillande pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Nicolas Lucas, Bernard Zamuner
  • Hollow Organic/Inorganic Composite Fibers, Sintered Fibers, Methods of Making Such Fibers, Gas Separation Modules Incorporating Such Fibers, and Methods of Using Such Modules
    Publication number: 20100018394
    Abstract: A suspension of inorganic particles, a copolymer comprising soft segments and hard segments, and a solvent may be extruded through a spinnerette to produce inorganic/organic composite hollow precursor fibers. The precursor fibers may be sintered. The fibers may be utilized in a gas separation module for separation of a gas mixture or production of syngas. The fibers may be installed in the gas separation module after sintering or they may be sintered after installation.
    Type: Application
    Filed: June 23, 2009
    Publication date: January 28, 2010
    Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Okan Max EKINER, Timothy L. MURRAY, Nicolas RICHET
  • Method and device for injecting two-phase COin a transfer gaseous medium
    Patent number: 7648569
    Abstract: A method and an apparatus for injecting two-phase (gas+solid) carbon dioxide into a gas stream. Liquid carbon dioxide is cryogenically expanded into two-phase carbon dioxide, which is then injected into the center of the stream. An inerting gas is also injected into the stream along with the two-phase carbon dioxide.
    Type: Grant
    Filed: July 7, 2003
    Date of Patent: January 19, 2010
    Assignee: L'Air Liquide Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes George Claude
    Inventors: Dominique Bras, José Buil
  • Method for the treatment of aluminum in a furnace
    Patent number: 7648558
    Abstract: Methods for treating aluminum in a furnace. An aluminum charge is introduced into a furnace and melted with heat from at least one burner. The burner is supplied with at least one oxidizer and at least one fuel. The oxidizer is made up of at least 10% oxygen by volume. The concentration of a first gas is measured in the furnace atmosphere or in a flue gas exiting the furnace. The oxidation of the molten aluminum is then reduced by holding the flow rate of the oxidizer steady while varying the flow rate of the fuel, according to the concentration of a second gas in the furnace or in the flue gas exiting the furnace. The concentration of the second gas is determined by comparing the measured species concentration and the intrinsic concentration which would be present absent the aluminum charge.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: January 19, 2010
    Assignee: L'Air Liquide Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Bruno Allemand, Jean-Claude Vuillermoz