Patents by Inventor Celine HOGNON

Celine HOGNON 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).

  • Process for purifying an aqueous solution comprising diethylacetal
    Patent number: 10463987
    Abstract: The invention relates to a process for purifying an aqueous solution comprising ethanol, acetaldehyde and diethylacetal comprising: a step A) of countercurrent liquid-liquid extraction comprising an extraction section supplied at the top by said aqueous solution as a mixture with at least one fraction of the water/ethanol/acetaldehyde raffinate resulting from the back extraction step B), and at the bottom by an extraction solvent, and producing an extract at the top and a purified feedstock at the bottom; —a step B) of countercurrent liquid-liquid back extraction comprising a back extraction section supplied at the top by an acidic aqueous solution, the pH of which is between 0.5 and 5, and at the bottom by the extract resulting from step A), and producing an extract at the top and a water/ethanol/acetaldehyde raffinate at the bottom.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: November 5, 2019
    Assignees: IFP Energies Nouvelles, Compagnie Generale des Etablissements Michelin
    Inventors: Celine Hognon, Sophie Drozdz, Marc Jacquin, Damien Leinekugel Le Cocq, Frederic Augier
  • PROCESS FOR PURIFYING AN AQUEOUS SOLUTION COMPRISING DIETHYLACETAL
    Publication number: 20190232193
    Abstract: The invention relates to a process for purifying an aqueous solution comprising ethanol, acetaldehyde and diethylacetal comprising: a step A) of countercurrent liquid-liquid extraction comprising an extraction section supplied at the top by said aqueous solution as a mixture with at least one fraction of the water/ethanol/acetaldehyde raffinate resulting from the back extraction step B), and at the bottom by an extraction solvent, and producing an extract at the top and a purified feedstock at the bottom; —a step B) of countercurrent liquid-liquid back extraction comprising a back extraction section supplied at the top by an acidic aqueous solution, the pH of which is between 0.5 and 5, and at the bottom by the extract resulting from step A), and producing an extract at the top and a water/ethanol/acetaldehyde raffinate at the bottom.
    Type: Application
    Filed: October 13, 2017
    Publication date: August 1, 2019
    Applicants: IFP Energies Nouvelles, Compagnie Generale des Etablissements Michelin
    Inventors: Celine HOGNON, Sophie DROZDZ, Marc JACQUIN, Damien LEINEKUGEL LE COCQ, Frederic AUGIER
  • Use of a Lewis donor solvent to purify a feedstock that contains ethanol, acetaldehyde, and impurities
    Patent number: 10351497
    Abstract: The invention pertains to the use of a solvent that comprises a Lewis donor compound that is selected from the group made up of unsaturated fatty acids that have between 12 and 18 carbon atoms, phosphate esters that have between 12 and 30 carbon atoms, and mixtures thereof to separate the impurities from a feedstock that contains ethanol, acetaldehyde, and impurities.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: July 16, 2019
    Assignees: IFP Energies Nouvelles, Compagnie Generale des Etablissements Michelin
    Inventors: Celine Hognon, Sophie Drozdz, Marc Jacquin
  • USE OF A LEWIS DONOR SOLVENT TO PURIFY A FEEDSTOCK THAT CONTAINS ETHANOL, ACETALDEHYDE, AND IMPURITIES
    Publication number: 20190144366
    Abstract: The invention pertains to the use of a solvent that comprises a Lewis donor compound that is selected from the group made up of unsaturated fatty acids that have between 12 and 18 carbon atoms, phosphate esters that have between 12 and 30 carbon atoms, and mixtures thereof to separate the impurities from a feedstock that contains ethanol, acetaldehyde, and impurities.
    Type: Application
    Filed: May 9, 2017
    Publication date: May 16, 2019
    Applicants: IFP Energies Nouvelles, Compagnie Generale des Etablissements Michelin, Michelin Recherche Et Technique S.A.
    Inventors: Celine HOGNON, Sophie DROZDZ, Marc JACQUIN