Patents by Inventor Remi Tsiava

Remi Tsiava 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).

  • 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: 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: 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: 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: 10280114
    Abstract: Method of operating a long direct-fired inclined counterflow rotary kiln for the thermal treatment of material and counterflow rotary kiln adapted for same, whereby material to be treated is introduced into the kiln at the inlet end and treated material is evacuated from the kiln at the outlet end, whereby a main combustion zone extends inside the kiln over a distance of ¼ to ? of the internal length Lint of the kiln, whereby a supplementary combustion zone in which supplementary combustion takes place with an oxygen-rich oxidant extends inside the kiln over a distance from the inlet end of at most ¼ of the internal length Lint, and whereby no combustion takes place in a heat exchange zone located between the main combustion zone and the supplementary combustion zone.
    Type: Grant
    Filed: December 24, 2015
    Date of Patent: May 7, 2019
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Bernard Labegorre, Carlo Renna, Remi Tsiava, Sergio Fernandes
  • Patent number: 10208952
    Abstract: Combustion method and installation in which an oxygen-rich oxidant is preheated by exchange of heat with a heat-transfer fluid, upstream of the combustion chamber, in which method and installation an auxiliary gas is heated by heat exchange with a first proportion of the hot flue gases discharged from the chamber, and in which method and installation the heat-transfer fluid comprises a mixture of at least a proportion of the heated auxiliary gas with a proportion of hot flue gases.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: February 19, 2019
    Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Luc Jarry, Youssef Joumani, Bertrand Leroux, Remi Tsiava
  • Publication number: 20190003706
    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: April 6, 2018
    Publication date: January 3, 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
  • Publication number: 20180305627
    Abstract: An integrated apparatus of industrial furnace and biomass gasification system and a process of operating said system are disclosed. Hot flue gas containing high concentration of CO2 and water issued from an industrial furnace such as a glass furnace or a melting furnace for non-ferrous metals is introduced into a biomass gasification system as a heat source to promote the pyrolysis of biomass and/or as a gasification agent to generate syngas. The generated syngas is blended with solid-fuel such as petcoke before being introduced into the industrial furnace to facilitate ignition and combustion of petcoke. Overall CO2, NOx and SOx emission from the industrial furnace are reduced, and the lifetime of the industrial furnace is increased.
    Type: Application
    Filed: September 21, 2016
    Publication date: October 25, 2018
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Remi TSIAVA, Biao HUANG, Shenqi XU, Bo WEI
  • Publication number: 20170362122
    Abstract: Method of operating a long direct-fired inclined counterflow rotary kiln for the thermal treatment of material and counterflow rotary kiln adapted for same, whereby material to be treated is introduced into the kiln at the inlet end and treated material is evacuated from the kiln at the outlet end, whereby a main combustion zone extends inside the kiln over a distance of ¼ to ? of the internal length Lint of the kiln, whereby a supplementary combustion zone in which supplementary combustion takes place with an oxygen-rich oxidant extends inside the kiln over a distance from the inlet end of at most ¼ of the internal length Lint, and whereby no combustion takes place in a heat exchange zone located between the main combustion zone and the supplementary combustion zone.
    Type: Application
    Filed: December 24, 2015
    Publication date: December 21, 2017
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Bernard LABEGORRE, Carlo RENNA, Remi TSIAVA, Sergio FERNANDES
  • Patent number: 9841188
    Abstract: The present invention relates to the supplying power to burners for oxy-fuel combustion glass melting furnaces, including a fuel injecting means and a hot oxygen power supplying means, the dispensing of oxygen being carried out so as to develop a staged combustion, a fraction of the oxygen being concurrently injected into the fuel, said oxygen being supplied essentially without heating prior to the supplying thereof into the fuel injecting means.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: December 12, 2017
    Assignees: AGC GLASS EUROPE, L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE
    Inventors: Mohand Amirat, Johan Behen, Gabriel Constantin, Olivier Douxchamps, Benoit Grand, Remi Tsiava, Fabrice Wagemans
  • Patent number: 9803860
    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: December 28, 2012
    Date of Patent: October 31, 2017
    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
  • Publication number: 20170267582
    Abstract: Method and installation for calcining cement raw meal in a calciner whereby fuel and a calciner oxidant having an oxygen content of at least 30% vol are introduced into the calciner so as to generate either an oxidant-lean zone or a fuel-lean zone in the calciner located between the lowermost fuel inlet level and the lowermost oxidant inlet level of the calciner, between 50% and 100% by weight of the raw meal being supplied to the calciner upstream of and/or within the oxidant-lean, respectively the fuel-lean zone.
    Type: Application
    Filed: November 30, 2015
    Publication date: September 21, 2017
    Applicants: L'Air Liquide, Societe Anonyme pour I'Etude et I'Exploition des Procedes Georges Claude, LAFARGE
    Inventors: Faustine PANIER, Xavier PAUBEL, Cario RENNA, Michel GIMENEZ, Colin PAXTON, Henrik WASSARD, Moren DRIVSHOLM, Remi TSIAVA
  • Publication number: 20170217813
    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: Application
    Filed: April 14, 2017
    Publication date: August 3, 2017
    Applicants: 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: 9568194
    Abstract: Variable momentum burner assembly for separately injecting fuel gas and oxidant in a combustion zone, comprising at least two fuel gas canals, at least one oxidant canal and a fuel gas distributor, whereby the at least two fuel gas canals comprise an inner fuel-conducting passage forming an inner fuel gas outlet and an outer fuel-conducting passage forming an outer fuel gas outlet, said inner and said outer fuel-conducting passages being coaxially arranged; and whereby said fuel gas distributor comprises a first fuel gas chamber in fluid connexion with the inner fuel-conducting passage of the at least two fuel gas canals and a second fuel gas chamber in fluid connexion with the outer fuel-conducting passage of the at least two fuel gas canals.
    Type: Grant
    Filed: July 1, 2009
    Date of Patent: February 14, 2017
    Assignee: L'Air Liquide Société Anonyme Pour L'Étude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Mohand Amirat, Pascal Duperray, Benoit Grand, Magnus Mortberg, Jacques Mulon, Xavier Paubel, Rémi Tsiava, Robert Kalcevic
  • Publication number: 20170016670
    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: Application
    Filed: February 26, 2015
    Publication date: January 19, 2017
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et I'Exploitation des Procedes Georges Claude
    Inventors: Alex GRASSI, Dirk HOELSCHER, Bertramd LEROUX, Jacques MULON, Xavier PAUBEL, Remi TSIAVA
  • Patent number: 9447969
    Abstract: Method of combusting a fuel with an oxidizer and corresponding burner assembly, whereby a jet of fuel and a jet of primary oxidizer are injected into a combustion zone in contact with one another so as to generate a primary fuel-rich flame, a swirling first peripheral gas jet is injected through a first passage around the fuel jet and primary oxidizer jets and a swirling second peripheral gas jet is injected through a second passage around the first peripheral gas jet and whereby a jet of secondary oxidizer is injected through a passage into the combustion zone between the first and second peripheral gas jets.
    Type: Grant
    Filed: March 9, 2012
    Date of Patent: September 20, 2016
    Assignee: L'Air Liquide Société Anonyme Pour l'Étude Et l'Exploitation des Procedes Georges Claude
    Inventors: Patrick Recourt, Rémi Tsiava
  • Publication number: 20160047546
    Abstract: Variable momentum burner assembly for separately injecting fuel gas and oxidant in a combustion zone, comprising at least two fuel gas canals, at least one oxidant canal and a fuel gas distributor, whereby the at least two fuel gas canals comprise an inner fuel-conducting passage forming an inner fuel gas outlet and an outer fuel-conducting passage forming an outer fuel gas outlet, said inner and said outer fuel-conducting passages being coaxially arranged; and whereby said fuel gas distributor comprises a first fuel gas chamber in fluid connexion with the inner fuel-conducting passage of the at least two fuel gas canals and a second fuel gas chamber in fluid connexion with the outer fuel-conducting passage of the at least two fuel gas canals.
    Type: Application
    Filed: July 1, 2009
    Publication date: February 18, 2016
    Inventors: Mohand AMIRAT, Pascal Duperray, Benoit Grand, Magnus Mortberg, Jacques Mulon, Xavier Paubel, Remi Tsiava, Robert Kalcevic
  • Patent number: 9074766
    Abstract: The invention relates to a method for heating a material in a zone heated by combustion of a fuel with an oxidant by means of a oxyburner comprising an injector arranged within a block defining a chamber with a confinement index Iconf=(S/S?)×(L/L?)×(1/(1+a/100))=0.10; the fuel being injected into the burner chamber with a rate IF and the oxidant being injected into the burner chamber at a rate Iox such that 0.7=IF=3.6 et 0.3=Iox=5.1, provided that when Iox>3.8 then IF=3.3.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: July 7, 2015
    Assignee: L'Air Liquide Société Anonyme Pour L'Étude Et L'Exploitation Des Procedes Georges Claude
    Inventors: Robert Kalcevic, Jacky Laurent, Bertrand Leroux, Remi Tsiava
  • Publication number: 20140004469
    Abstract: Method of combusting a fuel with an oxidizer and corresponding burner assembly, whereby a jet of fuel and a jet of primary oxidizer are injected into a combustion zone in contact with one another so as to generate a primary fuel-rich flame, a swirling first peripheral gas jet is injected through a first passage around the fuel jet and primary oxidizer jets and a swirling second peripheral gas jet is injected through a second passage around the first peripheral gas jet and whereby a jet of secondary oxidizer is injected through a passage into the combustion zone between the first and second peripheral gas jets.
    Type: Application
    Filed: March 9, 2012
    Publication date: January 2, 2014
    Applicant: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes
    Inventors: Patrick Recourt, Remi Tsiava
  • Patent number: 8469699
    Abstract: The invention concerns a method for burning a fuel by means of at least one a burner, each burner comprising two half-assemblies (1, 1?) comprising each at least one fuel injecting means (2) associated with a primary oxidant injecting means (3), and at least one secondary oxidant injecting means (4), a first oxidant jet being injected at a first distance from the fuel by the primary injecting means so as to generate a first incomplete combustion, and a second oxidant jet being injected at a second distance (L1), greater than the first distance, from the fuel injecting means so as to generate a second combustion with the remaining fuel of the first incomplete combustion. Said method is characterized in that each half-assembly delivers a combustion power different from the one delivered by the other half-assembly.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: June 25, 2013
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Bertrand Leroux, Rémi Tsiava, Patrick Jean-Marie Recourt