Patents by Inventor Jacky Laurent
Jacky Laurent 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).
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Patent number: 10101025Abstract: Method and burner for combusting a main fuel with a main oxidizer, whereby flows of the main fuel and the main oxidizer are injected via an injector end, comprising at least one metallic injector, said injector end being positioned in the upstream section of a main passage of a refractory block and whereby multiple jets are injected into the downstream section of the main passage to increase mixing and turbulence of the flows of the main fuel and the main oxidizer.Type: GrantFiled: December 18, 2013Date of Patent: October 16, 2018Assignee: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges ClaudeInventors: Paul Berhaut, Benoit Grand, Jacky Laurent, Jacques Mulon, Xavier Paubel, Patrick Recourt, Remi Pierre Tsiava
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Publication number: 20150330624Abstract: Method and burner for combusting a main fuel with a main oxidizer, whereby flows of the main fuel and the main oxidizer are injected via an injector end, comprising at least one metallic injector, said injector end being positioned in the upstream section of a main passage of a refractory block and whereby multiple jets are injected into the downstream section of the main passage to increase mixing and turbulence of the flows of the main fuel and the main oxidizer.Type: ApplicationFiled: December 18, 2013Publication date: November 19, 2015Inventors: Paul BERHAUT, Benoit GRAND, Jacky LAURENT, Jacques MULON, Xavier PAUBEL, Patrick RECOURT, Rémi Pierre TSIAVA
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Patent number: 9074766Abstract: 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: GrantFiled: November 21, 2008Date of Patent: July 7, 2015Assignee: L'Air Liquide Société Anonyme Pour L'Étude Et L'Exploitation Des Procedes Georges ClaudeInventors: Robert Kalcevic, Jacky Laurent, Bertrand Leroux, Remi Tsiava
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Patent number: 8333819Abstract: Process and apparatus for melting raw material in an electric arc furnace using a flame of variable direction, the apparatus comprising a burner and a lance whereby the lance outlet opening and the burner outlet opening are not concentric and are located at a distance from one another, and whereby the lance axis forms an angle with the burner axis in the range from 10° to 40.Type: GrantFiled: January 6, 2009Date of Patent: December 18, 2012Assignee: L'Air Liquide Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Michael G. K. Grant, Fabien Januard, Youssef Joumani, Bernard Labegorre, Jacky Laurent
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Publication number: 20110127701Abstract: A jet of gas injected from a lance is fluidically deviated with a gas flowing in either the same or opposite direction as the jet of gas. The gas used to fluidically deviate the jet is the same as or different from the gas in the jet.Type: ApplicationFiled: November 30, 2009Publication date: June 2, 2011Inventors: Michael G.K. GRANT, Fabien JANUARD, Youssef JOUMANI, Jacky LAURENT
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Publication number: 20100310996Abstract: 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: ApplicationFiled: November 21, 2008Publication date: December 9, 2010Applicant: L'Air Liquide Societe Anonyme Pour L'EtudeInventors: Robert Kalcevic, Jacky Laurent, Bertrand Leroux, Remi Tsiava
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Publication number: 20100282185Abstract: The invention relates to a method of combustion of a fuel using an oxygen containing gas and at least one mainly inert gas, in which: the said oxygen containing gas comprises at least 80% of oxygen in volume, the said fuel and the said oxygen containing gas are injected in such a way as to create a flame, the said mainly inert gas is injected in such a way that it is contiguous to and surrounds the flame created by the said fuel and the said oxygen containing gas and that it has a divergent swirl with regard to the flame.Type: ApplicationFiled: January 15, 2009Publication date: November 11, 2010Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges ClaudeInventors: Ivan Sanchez-Molinero, Jacky Laurent, Jacques Mulon, Xavier Paubel, Patrick Jean-Marie Recourt, Remi Pierre Tsiava
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Publication number: 20100282021Abstract: Process and apparatus for melting raw material in an electric arc furnace using a flame of variable direction, the apparatus comprising a burner and a lance whereby the lance outlet opening and the burner outlet opening are not concentric and are located at a distance from one another, and whereby the lance axis forms an angle with the burner axis in the range from 10° to 40.Type: ApplicationFiled: January 6, 2009Publication date: November 11, 2010Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges ClaudeInventors: Michael G.K. Grant, Fabien Januard, Youssef Joumani, Bernard Labegorre, Jacky Laurent
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Publication number: 20100183989Abstract: A system includes at least one pilot burner and one more powerful main burner. The pilot burner includes at least a first tube open at an end and including at least a first feedline capable of injecting a combustible gas into the first tube. The pilot burner further includes at least a second tube open at an end and including at least a third feedline capable of injecting an oxygen-rich gas into the second tube. The pilot burner further includes at least a second feedline capable of feeding the first tube with air.Type: ApplicationFiled: January 8, 2010Publication date: July 22, 2010Applicant: L'Air Liquide Societe Anonyme Pour L'Etude Et L'Exploitation Des Procedes Georges ClaudeInventors: Ivan SANCHEZ-MOLINERO, Jacky Laurent, Jacques Mulon, Patrick Jean-Marie Recourt, Rémi Pierre Tsiava
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Publication number: 20100101465Abstract: A method for injecting fuel, oxidant, and ballast into an oxycombustoin boiler is presented.Type: ApplicationFiled: October 14, 2009Publication date: April 29, 2010Applicant: L'Air Liquide Societe Anonyme Pour L'Etude et l'Exploitaion Des Procedes Georges ClaudeInventors: Jacky Laurent, Xavier Paubel, Jacques Mulon, Patrick Jean-Marie Recourt, Ivan Sanchez-Molinero, Remi Pierre Tsiava
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Patent number: 7223978Abstract: The invention relates to a method for measuring the quantity of chemical species contained in a high-temperature gas, and especially the quantity of CO and/or CO2 contained in a gas emitted from a metal treating furnace, especially a light-arc furnace (EAF) or a converter (BOF). According to the invention, part of the gas to be analysed is extracted, the temperature of said gas is reduced to at least 300° C., preferably to a temperature that is lower than or equal to 200° C., in such a way as to obtain a at a temperature between 300° C., preferably 200° C., and the ambient temperature, and at least the quantity of CO and/or CO2 said gas is then measured by means of the coherent light signal which is emitted by a laser diode through the gas and is retrieved on emergence from the gas.Type: GrantFiled: August 31, 2004Date of Patent: May 29, 2007Assignee: L'Air Liquide, Société Anonyme à Directoire et Conseil de Surveillance pour l'Étude et l'Exploitation des Procédés Georges ClaudeInventors: Jean-Claude Vuillermoz, Jacky Laurent, Savine Bockel-Macal, Fabien Januard, Bruno Allemand
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Publication number: 20060202123Abstract: The invention relates to a method for measuring the quantity of chemical species contained in a high-temperature gas, and especially the quantity of CO and/or CO2 contained in a gas emitted from a metal treating furnace, especially a light-arc furnace (EAF) or a converter (BOF). According to the invention, part of the gas to be analysed is extracted, the temperature of said gas is reduced to at least 300° C., preferably to a temperature that is lower than or equal to 200° C., in such a way as to obtain a gas at a temperature between 300° C., preferably 200° C., and the ambient temperature, and at least the quantity of CO and/or CO2 in said gas is then measured by means of the coherent light signal which is emitted by a laser diode through the gas and is retrieved on emergence from the gas.Type: ApplicationFiled: August 31, 2004Publication date: September 14, 2006Inventors: Jean-Claude Vuillermoz, Jacky Laurent, Savine Bockel-Macal, Fabien Januard, Bruno Allemand
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Patent number: 6514310Abstract: The electric arc furnace is equipped with a supersonic injector comprising a so-called Laval nozzle arranged at a certain distance above the bath. The dimensions of the nozzle are calculated as a function of the desired flow rate of oxygen and the desired velocity of the jet, and the pressure of the oxygen at the intake of the nozzle is such that the static pressure of the jet at the exit of the injector is substantially equal to the pressure of the surrounding atmosphere. Preferably, the injector comprises an annular channel for injection of natural gas, and can be used in burner mode at the start of the melting of scrap iron. The velocity of the oxygen is then subsonic.Type: GrantFiled: July 26, 2001Date of Patent: February 4, 2003Assignee: L'Air Liquide Societe Anonyme a Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Bruno Allemand, Christel Champinot, Stéphane Melen, Jean-Claude Vuillermoz, Sabastien Flichy, Jacky Laurent
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Publication number: 20020035892Abstract: The electric arc furnace is equipped with a supersonic injector (10) comprising a so-called Laval nozzle (20) arranged at a certain distance above the bath. The dimensions of the nozzle (20) are calculated as a function of the desired flow rate of oxygen and the desired velocity of the jet, and the pressure of the oxygen at the intake of the nozzle (20) is such that the static pressure of the jet at the exit of the injector (10) is substantially equal to the pressure of the surrounding atmosphere.Type: ApplicationFiled: July 26, 2001Publication date: March 28, 2002Inventors: Bruno Allemand, Christel Champinot, Stephane Melen, Jean-Claude Vuillermoz, Sabastien Flichy, Jacky Laurent
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Patent number: 6229838Abstract: An electric arc furnace is provided for the production of steel by melting metal between electrodes. The electric arc furnace comprises gas injectors provided with respective cooling chambers placed in a wall of the furnace, wherein at least one single chamber is associated with at least two injectors in order to cool each injector. Each injector is angled in a manner appropriate with respect to a corresponding gas injected thereby and to a corresponding function thereof, wherein the orientation axes of the injectors are not parallel.Type: GrantFiled: April 28, 2000Date of Patent: May 8, 2001Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges ClaudeInventors: Sébastien Flichy, Jacky Laurent, Frédéric Viraize, Marc Bremont, Jean-Claude Vuillermoz