Patents by Inventor Julien Grandjean

Julien Grandjean 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).

  • Publication number: 20230357658
    Abstract: The present invention relates to a process for removing acid compounds contained in a gaseous effluent which consists in bringing a gaseous effluent into contact, in the absorption column, with an absorbent solution comprising water, between 20% and 28% by weight of pentamethyldipropylenetriamine and between 5% and 35% by weight of N-methyldiethanolamine.
    Type: Application
    Filed: December 1, 2020
    Publication date: November 9, 2023
    Inventors: Julien GRANDJEAN, Thierry HUARD, Aurelie WENDER, Francois GROSJEAN, Jean KITTEL, Abdelkader LETTAT, Marie DEHLINGER, Aurelie MOURET, Xavier COURTIAL
  • Patent number: 11136434
    Abstract: Polyamines of formula (I), their preparation method and their use in an absorbing solution based on amines in order to selectively eliminate H2S from a gaseous effluent containing H2S and CO2, which polyamines are obtained by a reaction between piperazine and an epihalohydrin or a 1,3-dihalo-2-propanol
    Type: Grant
    Filed: May 28, 2018
    Date of Patent: October 5, 2021
    Assignee: IFP Energies Nouvelles
    Inventors: Bruno Delfort, Thierry Huard, Julien Grandjean
  • 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
  • Patent number: 10745329
    Abstract: The present invention relates to zeolite adsorbents based on agglomerated zeolite X crystals comprising barium, potassium and sodium. These adsorbents find applications in the separation of aromatic C8 isomer fractions and especially xylene.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: August 18, 2020
    Assignees: ARKEMA FRANCE, IFP ENERGIES NOUVELLES
    Inventors: Ludivine Bouvier, Catherine Laroche, Julien Grandjean
  • 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
  • Publication number: 20200148824
    Abstract: The invention concerns novel polyamines with formula (I), obtained by the reaction between piperazine and an epihalohydrin or a 1,3-dihalo-2-propanol, n being in the range 2 to 100, R1 being equally either an H or an alkyl radical containing between 1 and 8 carbon atoms or a hydroxyalkyl radical having the following general formula (II): R2 being equally either an H or an alkyl radical containing between 1 and 6 carbon atoms; two R2 may be connected together via a covalent bond in order to form a cycle if they are alkyl radicals. The invention also concerns their preparation method and their use in an absorbing solution based on amines in order to selectively eliminate H2S from a gaseous effluent containing H2S and CO2.
    Type: Application
    Filed: May 28, 2018
    Publication date: May 14, 2020
    Applicant: IFP Energies Nouvelles
    Inventors: Bruno DELFORT, Thierry HUARD, Julien GRANDJEAN
  • Patent number: 10618866
    Abstract: The invention relates to a synthesis method for at least one nitrogen compound belonging to the family of partly N-hydroxyethylated tertiary 1,6-hexanediamines 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, comprising at least a first reaction between a first halogen atom-free precursor compound and a second halogen atom-free precursor compound. The first precursor compound comprises a carbon skeleton consisting of a linear sequence of 6 carbon atoms with the 4 central carbon atoms bonded each to 2 hydrogen atoms and the carbon atoms in alpha and omega position not bonded to a halogen atom.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: April 14, 2020
    Assignee: IFP Energies Nouvelles
    Inventors: Bruno Delfort, Julien Grandjean
  • Patent number: 10399925
    Abstract: The invention relates to novel nitrogen compounds belonging to the family of tertiary diamines of general formula (I) below, wherein R is an alkanediyl radical —(CH2)n- with n=2, 3, 4, 5 or 6. The compound according to the invention is for example N,N,N?,N?-(tetramethyl)-1,6-diamino-2,5-hexanediol or N,N,N?,N?-(tetramethyl)-1,8-diamino-2,7-octanediol. The invention also relates to the method for preparing them and to their use for removing acid compounds contained in a gaseous effluent.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: September 3, 2019
    Assignee: IFP Energies nouvelles
    Inventors: Julien Grandjean, Bruno Delfort, Dominique Le Pennec, Thierry Huard, Aurelie Wender, Armelle Nigon
  • Publication number: 20190002392
    Abstract: The invention relates to a synthesis method for at least one nitrogen compound belonging to the family of partly N-hydroxyethylated tertiary 1,6-hexanediamines 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, comprising at least a first reaction between a first halogen atom-free precursor compound and a second halogen atom-free precursor compound. The first precursor compound comprises a carbon skeleton consisting of a linear sequence of 6 carbon atoms with the 4 central carbon atoms bonded each to 2 hydrogen atoms and the carbon atoms in alpha and omega position not bonded to a halogen atom.
    Type: Application
    Filed: December 12, 2016
    Publication date: January 3, 2019
    Applicant: IFP Energies Nouvelles
    Inventors: Bruno DELFORT, Julien GRANDJEAN
  • Publication number: 20180251421
    Abstract: The invention relates to novel nitrogen compounds belonging to the family of tertiary diamines of general formula (I) below, wherein R is an alkanediyl radical —(CH2)n— with n=2, 3, 4, 5 or 6. The compound according to the invention is for example N,N,N?,N?-(tetramethyl)-1,6-diamino-2,5-hexanediol or N,N,N?,N?-(tetramethyl)-1,8-diamino-2,7-octanediol. The invention also relates to the method for preparing them and to their use for removing acid compounds contained in a gaseous effluent.
    Type: Application
    Filed: May 7, 2018
    Publication date: September 6, 2018
    Inventors: Julien GRANDJEAN, Bruno DELFORT, Dominique LE PENNEC, Thierry HUARD, Aurelie WENDER, Armelle NIGON
  • Publication number: 20180201556
    Abstract: The present invention relates to zeolite adsorbents based on agglomerated zeolite X crystals comprising barium, potassium and sodium. These adsorbents find applications in the separation of aromatic C8 isomer fractions and especially xylene.
    Type: Application
    Filed: July 8, 2016
    Publication date: July 19, 2018
    Inventors: Ludivine BOUVIER, Catherine LAROCHE, Julien GRANDJEAN
  • 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
  • Patent number: 9919289
    Abstract: The present invention relates to a zeolite-based adsorbent comprising at least one zeolite of FAU structure of LSX type and comprising barium and/or potassium, in which the outer surface area of said zeolite-based adsorbent, measured by nitrogen adsorption, is between 20 m2·g?1 and 100 m2·g?1, limits inclusive. The present invention also relates to the use of such a zeolite-based adsorbent as an adsorption agent, and also to the process for separating para-xylene from aromatic isomer fractions containing 8 carbon atoms.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: March 20, 2018
    Assignees: IFP Energies Nouvelles, Arkema France
    Inventors: Ludivine Bouvier, Cécile Lutz, Catherine Laroche, Julien Grandjean, Arnaud Baudot
  • Patent number: 9873081
    Abstract: An absorbent solution is provided for removing acid compounds contained in a gaseous effluent and a method of removing acid compounds contained in a gaseous effluent contacts the gaseous effluent with the absorbent solution. The absorbent solution includes at least one of the following two nitrogen compounds belonging to the family of tertiary diamines: 1-dimethylamino-3-(2-dimethylaminoethoxy)-2-propanol 1,1?-oxybis[3-(dimethylamino)-2-propanol] and water.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: January 23, 2018
    Assignee: IFP ENERGIES NOUVELLES
    Inventors: Bruno Delfort, Dominique Le Pennec, Julien Grandjean, Thierry Huard, Aurelie Wender, Armelle Nigon
  • Patent number: 9821270
    Abstract: The invention relates to a method of selectively removing hydrogen sulfide H2S from a gaseous effluent comprising at least H2S and CO2, wherein a stage of selective absorption of hydrogen sulfide over CO2 is carried out by contacting said effluent with a solution comprising (a) water and (b) at least the following diamine: 1,2-bis(2-dimethylaminoethoxy)ethane and wherein the absorption selectivity is controlled by adding (c) a viscosifying compound to the absorbent solution.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: November 21, 2017
    Assignee: IFP ENERGIES NOUVELLES
    Inventors: Julien Grandjean, Dominique Le Pennec, Bruno Delfort
  • Publication number: 20170304800
    Abstract: The present invention relates to a zeolite-based adsorbent comprising at least one zeolite of FAU structure of LSX type and comprising barium and/or potassium, in which the outer surface area of said zeolite-based adsorbent, measured by nitrogen adsorption, is between 20 m2·g?1 and 100 m2·g?1, limits inclusive. The present invention also relates to the use of such a zeolite-based adsorbent as an adsorption agent, and also to the process for separating para-xylene from aromatic isomer fractions containing 8 carbon atoms.
    Type: Application
    Filed: November 13, 2015
    Publication date: October 26, 2017
    Applicants: IFP ENERGIES NOUVELLES, ARKEMA FRANCE
    Inventors: LUDIVINE BOUVIER, CÉCILE LUTZ, CATHERINE LAROCHE, JULIEN GRANDJEAN, ARNAUD BAUDOT
  • 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
  • Publication number: 20170100694
    Abstract: The invention relates to an absorbent solution and to a method of removing acid compounds contained in a gaseous effluent, comprising water and at least one of the following two nitrogen compounds belonging to the family of tertiary diamines: 1-dimethylamino-3-(2-dimethylaminoethoxy)-2-propanol 1,1?-oxybis[3-(dimethylamino)-2-propanol]
    Type: Application
    Filed: May 12, 2015
    Publication date: April 13, 2017
    Inventors: Bruno DELFORT, Dominique LE PENNEC, Julien GRANDJEAN, Thierry HUARD, Aurelie WENDER, Armelle NIGON
  • Publication number: 20170081275
    Abstract: The invention relates to novel nitrogen compounds belonging to the family of tertiary diamines of general formula (I) below, wherein R is an alkanediyl radical —(CH2)n- with n=2, 3, 4, 5 or 6. The compound according to the invention is for example N,N,N?,N?-(tetramethyl)-1,6-diamino-2,5-hexanediol or N,N,N?,N?-(tetramethyl)-1,8-diamino-2,7-octanediol. The invention also relates to the method for preparing them and to their use for removing acid compounds contained in a gaseous effluent.
    Type: Application
    Filed: May 12, 2015
    Publication date: March 23, 2017
    Inventors: Julien GRANDJEAN, Bruno DELFORT, Dominique LE PENNEC, Thierry HUARD, Aurelie WENDER, Armelle NIGON
  • Patent number: 9486737
    Abstract: The absorbent solution for removing acidic compounds contained in a gas effluent comprises water and at least one amine that is selected from among tertiary monoalkanolamines that contain an etheric function and belong to the 3-alcoxypropylamine family having general formula (A). The method for removing the acidic compounds contained in a gas effluent involves placing a gas effluent 1 into the column C1 together with the absorbent solution 4.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: November 8, 2016
    Assignee: IFP Energies Nouvelles
    Inventors: Bruno Delfort, Dominique Le Pennec, Julien Grandjean