Patents by Inventor Helene Coulombeau

Helene Coulombeau 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).

  • METHOD FOR PURIFYING A PYROLYSIS OIL IN ORDER TO UPGRADE IT BY STEAM-CRACKING
    Publication number: 20240076558
    Abstract: The invention relates to a method for purifying a pyrolysis oil originating from the pyrolysis of waste including plastics by liquid/liquid extraction. This extraction is performed by means of a polar solvent that is immiscible with pyrolysis oil, for which a recovery rate is obtained greater than or equal to 0.95, this recovery rate being defined as the ratio of the extract volume over the initial volume of solvent, this extract being a phase containing the solvent which is immiscible with pyrolysis oil, recovered after agitation then decantation of a mixture of one part by volume of solvent with twenty-five parts by volume of pyrolysis oil at atmospheric pressure and at a temperature of 20° C.
    Type: Application
    Filed: January 24, 2022
    Publication date: March 7, 2024
    Applicant: TotalEnergies OneTech
    Inventors: Thomas COUSTHAM, Marfiza Victoria BERRIO NAVARRO, Hélène COULOMBEAU-LEROY, Sébastien LEPLAT, Quentin LESUEUR, Didrik HAUDEBOURG
  • Heat-sensitive compounds exhibitng a cloud point which can be used as extractants for the separation of metals in aqueous solution
    Patent number: 7015340
    Abstract: The invention relates to a heat-sensitive compound having the property of being soluble in water below a critical temperature Tc and insoluble in water above this temperature Tc, this property being thermally reversible, characterized in that it comprises a first amphiphilic and thermally reversible part corresponding to one of the following formulae (I) and (II): in which i is an integer ranging from 1 to 20 and j is an integer ranging from 3 to 30. This compound can be used to extract a chemical entity, such as uranium.
    Type: Grant
    Filed: September 6, 2002
    Date of Patent: March 21, 2006
    Assignee: Commissariat a L'Energie Atomique
    Inventors: Charles Madic, Laurence Berthon, Nicole Zorz, Hélène Coulombeau, Fabienne Testard, Thomas Zemb, Sébastien Gibanel, Chantal Larpent, Krystyna Baczko
  • Heat-sensitive compounds having a cloud point which can be used as extractants for the separation of metals in aqueous solution
    Publication number: 20040242769
    Abstract: The invention relates to a heat-sensitive compound having the property of being soluble in water below a critical temperature Tc and insoluble in water above this temperature Tc, this property being thermally reversible, characterized in that it comprises a first amphiphilic and thermally reversible part corresponding to one of the following formulae (I) and (II): 1
    Type: Application
    Filed: March 2, 2004
    Publication date: December 2, 2004
    Inventors: Charles Madic, Laurence Berthon, Nicole Zorz, Helene Coulombeau, Fabienne Testard, Thomas Zemb, Sebastien Gibanel, Chantal Larpent, Krystyna Baczko