Patents by Inventor Ludovic Chahen

Ludovic Chahen 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).

  • CONVERSION OF A HYDROCARBON FEEDSTOCK DERIVED FROM OXYGEN-RICH BIOMASS INTO AROMATIC ISOCYANATES
    Publication number: 20260209166
    Abstract: A device for converting an oxygen-rich hydrocarbon-based feedstock obtained from biomass, comprising: a pyrolysis unit; a water-gas shift WGS reaction section; a fractionation train suitable for extracting at least one cut comprising benzene, one cut comprising toluene, one cut comprising xylenes, and one cut comprising aromatic compounds with 9 and 10 carbon atoms; a nitration reaction section suitable for producing aromatic nitro compounds from at least one cut extracted from said fractionation train; a reduction reaction section; an isocyanate synthesis reaction section.
    Type: Application
    Filed: December 12, 2023
    Publication date: July 23, 2026
    Applicant: IFP Energies Nouvelles
    Inventors: Catherine LAROCHE, Ludovic CHAHEN
  • Method for treating an alcohol feedstock for the production of olefins
    Patent number: 11993559
    Abstract: The invention relates to a process for treating an alcoholic feedstock, comprising: a) a stage of preheating of said alcoholic feedstock to a temperature of between 70° C. and 200° C.; b) a stage of pretreatment on an acidic solid, operating at a temperature of between 70° C. and 200° C., to produce a pretreated alcoholic feedstock; c) a stage of partial vaporization to produce a vaporized stream and a liquid stream; and d) a stage of purification of the liquid stream resulting from stage c), to give a stream rich in water, a stream rich in monoalcohol and a stream rich in impurities.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: May 28, 2024
    Assignees: TOTAL RESEARCH & TECHNOLOGY FELUY, IFP Energies Nouvelies
    Inventors: Nicolas Aribert, Ludovic Chahen, Arnaud Lanoue, Vincent Coupard, Nikolai Nesterenko
  • METHOD FOR TREATING AN ALCOHOL FEEDSTOCK FOR THE PRODUCTION OF OLEFINS
    Publication number: 20220064088
    Abstract: The invention relates to a process for treating an alcoholic feedstock, comprising: a) a stage of preheating of said alcoholic feedstock to a temperature of between 70° C. and 200° C.; b) a stage of pretreatment on an acidic solid, operating at a temperature of between 70° C. and 200° C., to produce a pretreated alcoholic feedstock; c) a stage of partial vaporization to produce a vaporized stream and a liquid stream; and d) a stage of purification of the liquid stream resulting from stage c), to give a stream rich in water, a stream rich in monoalcohol and a stream rich in impurities.
    Type: Application
    Filed: November 27, 2019
    Publication date: March 3, 2022
    Applicants: TOTAL RESEARCH & TECHNOLOGY FELUY, IFP Energies Nouvelles
    Inventors: Nicolas ARIBERT, Ludovic CHAHEN, Arnaud LANOUE, Vincent COUPARD, Nikolai NESTERENKO
  • Complexes and method for synthesis of group 6 organometallics grafted on anions, and use thereof in an olefin metathesis method
    Patent number: 8680307
    Abstract: Novel group 6 organometallic compounds, supported on anions by means of at least one covalent metal-oxygen bond, are obtained by reaction of at least one borate or aluminate comprising at least one hydroxy group with at least one compound of a group 6 transition metal. These compounds are used in a catalytic composition utilized in an olefin metathesis method.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: March 25, 2014
    Assignee: IFP Energies Nouvelles
    Inventors: Ludovic Chahen, Mikaël Berthod, Vinciane Kelsen, Yves Chauvin, Helene Olivier-Bourbigou, Christophe Vallee
  • Complexes and method for synthesis of group 6 organometallics, and use thereof in an olefin metathesis method
    Patent number: 8680306
    Abstract: Novel group 6 organometallic compounds are obtained by reaction of at least one boron compound comprising at least one hydroxy, sulfhydryl or amino function with at least one compound of a group 6 transition metal. These compounds are used in a catalytic composition utilized in an olefin metathesis method.
    Type: Grant
    Filed: October 26, 2010
    Date of Patent: March 25, 2014
    Assignee: IFP Energies Nouvelles
    Inventors: Ludovic Chahen, Mikael Berthod, Helene Olivier-Bourbigou
  • NOVEL COMPLEXES AND METHOD FOR SYNTHESIS OF GROUP 6 ORGANOMETALLICS, AND USE THEREOF IN AN OLEFIN METATHESIS METHOD
    Publication number: 20110098496
    Abstract: Novel group 6 organometallic compounds are obtained by reaction of at least one boron compound comprising at least one hydroxy, sulfhydryl or amino function with at least one compound of a group 6 transition metal. These compounds are used in a catalytic composition utilized in an olefin metathesis method.
    Type: Application
    Filed: October 26, 2010
    Publication date: April 28, 2011
    Applicant: IFP ENERGIES NOUVELLES
    Inventors: Ludovic Chahen, Mikael Berthod, Helene Olivier-Bourbigou
  • NOVEL COMPLEXES AND METHOD FOR SYNTHESIS OF GROUP 6 ORGANOMETALLICS GRAFTED ON ANIONS, AND USE THEREOF IN AN OLEFIN METATHESIS METHOD
    Publication number: 20110098497
    Abstract: Novel group 6 organometallic compounds, supported on anions by means of at least one covalent metal-oxygen bond, are obtained by reaction of at least one borate or aluminate comprising at least one hydroxy group with at least one compound of a group 6 transition metal. These compounds are used in a catalytic composition utilized in an olefin metathesis method.
    Type: Application
    Filed: October 26, 2010
    Publication date: April 28, 2011
    Applicant: IFP Energies nouvelles
    Inventors: Ludovic Chahen, Mikaël Berthod, Vinciane Kelsen, Yves Chauvin, Helene Olivier-Bourbigou, Christophe Vallee