Patents by Inventor Benoit Davidian

Benoit Davidian has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11435139
    Abstract: The invention relates to a method for separating air by cryogenic distillation in a column system, comprising a first column operating at a first pressure and a second column operating at a second pressure, in which an argon-enriched flow is sent from an intermediate point of the first column to the tank of the second column and an argon-rich flow is drawn off at the top of the second column, wherein a nitrogen-enriched flow of the first column is compressed in a compressor, the compressed flow is sent to a head condenser of the second column after an expansion step and the vaporized flow is expanded in the condenser in a turbine where it at least partially liquefies.
    Type: Grant
    Filed: November 8, 2018
    Date of Patent: September 6, 2022
    Assignee: L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventor: Benoit Davidian
  • Patent number: 11426676
    Abstract: Gas/liquid separation column, containing a device for dispensing a liquid, intended for a gas/liquid separation column, comprising: a plate, in which several orifices are arranged, through which the liquid is able to leave the dispensing device; a plurality of stacks extending from the plate, each stack being configured to be followed by the gas; a plurality of plugging means respectively arranged at one end of one of the stacks, each plugging means having a gutter shape allowing a first portion of the liquid to be collected; a plurality of troughs for directly collecting a second portion of the liquid, at least one part of the orifices being distributed in the base of said troughs, each plugging means comprising a first open longitudinal end and a second closed longitudinal end.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: August 30, 2022
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Mikael Wattiau, Benoit Davidian
  • Publication number: 20220241717
    Abstract: Certain embodiments of the invention relate to a method and facility for purifying a high-flow gas stream by absorbtion, the purification facility comprising at least one absorber having a parallelepipedal enclosure arranged horizontally and comprising: a gas stream inlet and outlet, two fixed-bed absorbent masses each having a likewise parallelepipedal shape, the surfaces of which are parallel to the surfaces of the enclosure, and a set of volumes allowing the traversing of the two absorbent masses by the gas streams, in parallel but opposite directions, the traversing occurring horizontally over the entire cross-section of each of the absorbent masses and over their entire thicknesses.
    Type: Application
    Filed: February 12, 2020
    Publication date: August 4, 2022
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Benoit DAVIDIAN, Christian MONEREAU
  • 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: 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
  • Publication number: 20220074656
    Abstract: An apparatus for separating air, comprising a double column, means for sending air to the purification unit at a pressure that is no more than 1 bar higher than atmospheric pressure, a pipe for sending a first air flow, the first air flow having been purified in the purification unit, to the heat exchanger at a fourth pressure that is no more than 1 bar higher than the second pressure, a pipe for sending the first purified air flow, which has been cooled in the heat exchanger, to the second column for separation, and a booster compressor, the apparatus not comprising any means for depressurizing the first flow.
    Type: Application
    Filed: December 5, 2019
    Publication date: March 10, 2022
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventor: Benoit DAVIDIAN
  • Publication number: 20220065530
    Abstract: An air gas separation plant comprising, in the direction of circulation of the air stream: a compression means that makes it possible to compress the air stream to a pressure P1 of between 1.15 bar abs and 2 bar abs, an adsorption unit of TSA type, and a cryogenic distillation unit, with the adsorption unit comprising at least two adsorbers A and B each having a parallelepipedal casing arranged horizontally and comprising: an air stream inlet and an air stream outlet, a fixed bed adsorbent mass, likewise of parallelepipedal shape, the faces of which are parallel to the faces of the casing; and a set of volumes allowing the air stream to pass through the adsorbent mass horizontally, over the entire cross-section and throughout the entire thickness thereof.
    Type: Application
    Filed: February 12, 2020
    Publication date: March 3, 2022
    Applicant: L'Air Liquide, Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventor: Benoit DAVIDIAN
  • Patent number: 11215395
    Abstract: A stackable modular element comprises a parallelepipedal caisson, the caisson comprising at least one layer of thermal insulation of thickness less than one-third of the width of the caisson, the layer of insulation covering at least the lateral and frontal faces of the caisson and surrounding at least one chamber having a parallelepipedal volume within the caisson, the chamber containing at least one body of material that permits the exchange of mass and/or of heat, the body being parallelepipedal in shape and filling at least part of the chamber, the chamber having an opening on the upper face and/or an opening on the lower face to allow fluid to be transferred to the body from outside the element and/or from the body to outside the element.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: January 4, 2022
    Assignee: L'Air Liquide Société Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Patrice Cavagne, Benoit Davidian, Bernard Saulnier
  • 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
  • Publication number: 20210060453
    Abstract: Gas/liquid separation column, containing a device for dispensing a liquid, intended for a gas/liquid separation column, comprising: a plate, in which several orifices are arranged, through which the liquid is able to leave the dispensing device; a plurality of stacks extending from the plate, each stack being configured to be followed by the gas; a plurality of plugging means respectively arranged at one end of one of the stacks, each plugging means having a gutter shape allowing a first portion of the liquid to be collected; a plurality of troughs for directly collecting a second portion of the liquid, at least one part of the orifices being distributed in the base of said troughs, each plugging means comprising a first open longitudinal end and a second closed longitudinal end.
    Type: Application
    Filed: September 1, 2020
    Publication date: March 4, 2021
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Mikael WATTIAU, Benoit DAVIDIAN
  • Publication number: 20200370825
    Abstract: The invention relates to a method for separating air by cryogenic distillation in a column system, comprising a first column operating at a first pressure and a second column operating at a second pressure, in which an argon-enriched flow is sent from an intermediate point of the first column to the tank of the second column and an argon-rich flow is drawn off at the top of the second column, wherein a nitrogen-enriched flow of the first column is compressed in a compressor, the compressed flow is sent to a head condenser of the second column after an expansion step and the vaporized flow is expanded in the condenser in a turbine where it at least partially liquefies.
    Type: Application
    Filed: November 8, 2018
    Publication date: November 26, 2020
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventor: Benoit DAVIDIAN
  • Publication number: 20200370826
    Abstract: Insulated enclosure having at least one surface that is planar, containing at least one piece of equipment intended to operate at a temperature below 0° C., the interior space of the enclosure being intended to be at a pressure below atmospheric pressure and being filled with thermal insulation, and the thermal insulation being made up of a multitude of spherical beads made of thermally insulating material.
    Type: Application
    Filed: May 21, 2020
    Publication date: November 26, 2020
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l?Exploitation des Procedes Georges Claude
    Inventors: Maxime BUTLER, Benoit DAVIDIAN
  • Publication number: 20200209113
    Abstract: An apparatus for analyzing the content of at least one contaminant in a liquid cryogen comprising a cylindrical enclosure, an annular enclosure arranged around the cylindrical enclosure, means for dividing a flow of liquid cryogen in two, means for delivering a first part of the liquid cryogen to the cylindrical enclosure, means for delivering a second part of the liquid cryogen to the annular enclosure, a pipe connected to the cylindrical enclosure to allow vaporized liquid to pass through, a pipe connected to the annular enclosure to allow vaporized liquid to pass through, a heater for heating the cylindrical enclosure vessel and means for stopping the delivery of liquid cryogen to the cylindrical enclosure.
    Type: Application
    Filed: May 18, 2018
    Publication date: July 2, 2020
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Patrick LE BOT, Frederic CRAYSSAC, Benoit DAVIDIAN, Mathieu LECLERC
  • Publication number: 20200191689
    Abstract: The invention relates to a method for analyzing the content of at least one contaminant in a cryogenic liquid, wherein a known amount of liquid L constituting the initial liquid is injected at the pressure P into an enclosure; a predetermined fraction of the liquid present in the enclosure is vaporized by heating same; the vapor thus generated is discharged from the vaporizing enclosure to maintain a pressure no higher than the pressure P during the vaporization phase; the amount of liquid thus vaporized, less than L, is precisely controlled so that the amount of contaminant in the residual liquid present in the enclosure is substantially equal to that of the initial liquid, which implies that the concentration thereof is multiplied by a previously determined factor; a sample of residual liquid is collected; the contaminant content is measured after total vaporization of the residual liquid sample; and the contaminant content in the initial liquid is deduced from the measurement of contaminant in the residual
    Type: Application
    Filed: May 18, 2018
    Publication date: June 18, 2020
    Applicant: l'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Patrick LE BOT, Frédéric CRAYSSAC, Benoit DAVIDIAN, Mathieu LECLERC
  • Patent number: 10605523
    Abstract: A process comprises a first set of distillation columns and a second set of distillation columns, a low-pressure column of the first set being connected to a column operating at higher pressure of the second set by means of a gas arriving from the top of the column operating at a higher pressure and/or by means of a fluid arriving from the low-pressure column.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: March 31, 2020
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Benoit Davidian, Richard Dubettier-Grenier
  • Publication number: 20190301796
    Abstract: The invention relates to a method for constructing or altering a matter- and/or heat-exchange device, said mass- and/or heat-exchange device comprising an assembly of at least one first and one second stackable modular elements (A, B, C, D, E, F, G, H, I, J, K, L), in which the first element is secured over the second element or the second element is secured below the first element in a sealed manner, such that a fluid can flow from the body of the first element to the body of the second element and/or from the body of the second element to the body of the first element.
    Type: Application
    Filed: June 2, 2017
    Publication date: October 3, 2019
    Applicant: L'Air Liquide, Societe Anonyme pour I'Etude et I'Exploitation des Procedes Georges Claude
    Inventors: Patrice CAVAGNE, Benoit DAVIDIAN, Bernard SAULNIER
  • Patent number: 10344768
    Abstract: A process for compressing a gaseous fluid comprising a step (a) of injecting refrigerant during which a refrigerant substance is sprayed into the gaseous fluid to be compressed, and also a compression step (b), during which the passage of said gaseous fluid loaded with refrigerant substance is forced through said compressor in order to compress said gaseous fluid, the mass flow rate (Q3) of the refrigerant substance injected into the gaseous fluid represents between 1% and 5% of the mass flow rate of the gaseous fluid to be compressed, and the refrigerant substance is sprayed in the form of particles having a maximum dimension of less than or equal to 25 pm, and preferably less than or equal to 10 pm.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: July 9, 2019
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Guillaume Cardon, Antony Correia Anacleto, Benoit Davidian, Francois-Xavier Lemant, Quentin Saniez, Jean-Pierre Tranier
  • Patent number: 10329959
    Abstract: A method for generating electricity by means of a thermal power plant and a liquid vaporization apparatus involves producing heat energy by means of the power plant and using the heat energy to vaporize water or to heat water vapor, expanding the water vapor formed in a first turbine and using the first turbine to drive an electricity generator in order to produce electricity, vaporizing liquefied gas coming from a cryogenic storage in order to produce pressurized gas, reheating the pressurized gas with a part of the water vapor intended for the first turbine of the power plant and expanding the pressurized fluid in a second turbine to produce electricity.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: June 25, 2019
    Assignee: L'Air Liquide Societe Anonyme pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Benoit Davidian, Cyrille Paufique
  • Patent number: 10329960
    Abstract: A method for generating electricity by means of a nuclear power plant and a liquid vaporization apparatus involves producing heat energy by means of the nuclear power plant and using the heat energy to vaporize water or to heat water vapor, expanding the water vapor formed in a first turbine and using the first turbine to drive an electricity generator in order to produce electricity, vaporizing liquefied gas coming from a cryogenic storage in order to produce a pressurized gas, reheating the pressurized gas with a part of the water vapor intended for the first turbine of the power plant and expanding the pressurized fluid in a second turbine to produce electricity.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: June 25, 2019
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude et L'Exploitation Des Procedes Georges Claude
    Inventors: Benoit Davidian, Cyrille Paufique
  • Patent number: 10295253
    Abstract: The invention relates to a method for separating air by cryogenic distillation in a set of columns including a first column operating at a first pressure, a second column operating at a second pressure which is lower than the first pressure, and a third column operating at a third pressure, which is lower than the second pressure, wherein the third column includes first and second evaporator-condensers, and nitrogen from a cold compressor is sent to one of the evaporator-condensers.
    Type: Grant
    Filed: October 14, 2014
    Date of Patent: May 21, 2019
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventor: Benoit Davidian