Patents by Inventor Laetitia Giraudon

Laetitia Giraudon 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).

  • Absorbent solution based on hydroxyl derivatives of 1,6-hexanediamine and method for eliminating acid compounds from a gaseous effluent
    Patent number: 10967325
    Abstract: The invention relates to an absorbent solution and to a method using this solution for removing acid compounds contained in a gaseous effluent, comprising water and at least one diamine with general formula (I) as follows: wherein: radicals R1, R2, R3 are each selected indiscriminately among a methyl radical and a hydroxyethyl radical, and at least one radical among R1, R2, R3 is a methyl radical.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: April 6, 2021
    Assignee: IFP Energies nouvelles
    Inventors: Bruno Delfort, Julien Grandjean, Thierry Huard, Laetitia Giraudon, Catherine Lefebvre, Aurelie Wender, Armelle Nigon
  • ABSORBENT SOLUTION BASED ON HYDROXYL DERIVATIVES OF 1,6-HEXANEDIAMINE AND METHOD FOR ELIMINATING ACID COMPOUNDS FROM A GASEOUS EFFLUENT
    Publication number: 20200254380
    Abstract: The invention relates to an absorbent solution and to a method using this solution for removing acid compounds contained in a gaseous effluent, comprising water and at least one diamine with general formula (I) as follows: wherein: radicals R1, R2, R3 are each selected indiscriminately among a methyl radical and a hydroxyethyl radical, and at least one radical among R1, R2, R3 is a methyl radical.
    Type: Application
    Filed: December 13, 2016
    Publication date: August 13, 2020
    Applicant: IFP Energies nouvelles
    Inventors: Bruno DELFORT, Julien GRANDJEAN, Thierry HUARD, Laetitia GIRAUDON, Catherine LEFEBVRE, Aurelie WENDER, Armelle NIGON
  • Absorbent solution containing a mixture of 1,2-bis-(2-dimethylaminoethoxy)-ethane and of 2-[2-(2-dimethylaminoethoxy)-ethoxy]-ethanol, and method of removing acid compounds from a gaseous effluent
    Patent number: 9962645
    Abstract: The invention relates to an absorbent solution for absorbing acid compounds, such as hydrogen sulfide and carbon dioxide, in a gaseous effluent, containing water and a mixture of amines comprising 1,2-bis-(2-dimethylaminoethoxy)-ethane and 2-[2-(2-dimethylaminoethoxy)-ethoxy]-ethanol, of respective formulas (I) and (II) below, and to a method of removing acid compounds contained in a gaseous effluent using this solution.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: May 8, 2018
    Assignee: IFP Energies nouvelles
    Inventors: Bruno Delfort, Dominique Le Pennec, Julien Grandjean, Thierry Huard, Laetitia Giraudon, Aurelie Wender
  • ABSORBENT SOLUTION CONTAINING A MIXTURE OF 1,2-BIS-(2-DIMETHYLAMINOETHOXY)-ETHANE AND OF 2-[2-(2-DIMETHYLAMINOETHOXY)-ETHOXY]-ETHANOL, AND METHOD OF REMOVING ACID COMPOUNDS FROM A GASEOUS EFFLUENT
    Publication number: 20170197176
    Abstract: The invention relates to an absorbent solution for absorbing acid compounds, such as hydrogen sulfide and carbon dioxide, in a gaseous effluent, containing water and a mixture of amines comprising 1,2-bis-(2-dimethylaminoethoxy)-ethane and 2-[2-(2-dimethylaminoethoxy)-ethoxy]-ethanol, of respective formulas (I) and (II) below, and to a method of removing acid compounds contained in a gaseous effluent using this solution.
    Type: Application
    Filed: May 12, 2015
    Publication date: July 13, 2017
    Inventors: Bruno DELFORT, Dominique LE PENNEC, Julien GRANDJEAN, Thierry HUARD, Laetitia GIRAUDON, Aurelie WENDER
  • METHOD FOR SELECTIVE ABSORPTION OF HYDROGEN SULFIDE FROM A GASEOUS EFFLUENT COMPRISING CARBON DIOXIDE USING AN AMINE-BASED ABSORBENT SOLUTION COMPRISING A VISCOSIFYING AGENT
    Publication number: 20150290580
    Abstract: The invention is a method for selectively removing hydrogen sulfide H2S from a gaseous effluent comprising at least H2S and CO2. A stage of selective absorption of the hydrogen sulfide in relation to the CO2 is carried out by contacting the effluent with a solution comprising (a) water and (b) at least one nitrogen compound. The compound comprises at least one tertiary amine function or one hindered secondary amine function. The absorption selectivity is controlled by adding (c) a viscosifying compound to the absorbent solution.
    Type: Application
    Filed: September 12, 2013
    Publication date: October 15, 2015
    Inventors: Julien Grandjean, Laetitia Giraudon, Bruno Defort, Christine Dalmazzone, Aurelie Mouret-Henriques, Sebastien Gonnard