Patents by Inventor Arnaud COTTE

Arnaud COTTE 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 producing para-xylene using a step in a simulated moving bed and a step of fractionation via a three-fraction column
    Patent number: 10954176
    Abstract: The present invention relates to a process for producing high-purity para-xylene, comprising a single step of separation by adsorption in an SMB, with a subsequent step of separation by distillation in a first three-fraction distillation column producing at least two raffinates and optionally of two isomerization steps, making it possible to improve the overall para-xylene yield of the aromatic loop and to minimize the economic impact.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: March 23, 2021
    Assignee: AXENS
    Inventors: Isabelle Prevost, Jerome Pigourier, Pierre-Yves Martin, Arnaud Cotte
  • Process and device for separating aromatics under vacuum
    Patent number: 10876051
    Abstract: The present invention relates to a process and a device for separating a feedstock comprising benzene, toluene and C8+ compounds, by means of at least one “reformate” distillation column (C1), one aromatics extraction unit (P1), one para-xylene separation unit (P2), one xylene isomerization unit (P3) and one transalkylation unit (P4), the effluents of said units being separated in the following distillation columns: purification column (C6), deheptanizer (C7) and toluene column (C10), in which at least one of said distillation columns is suitable for being operated under vacuum so that: the majority of the C7? compounds are recovered in the product at the top of the distillation column operated under vacuum, and the majority of the C8+ compounds are recovered in the product at the bottom of the distillation column operated under vacuum.
    Type: Grant
    Filed: May 2, 2019
    Date of Patent: December 29, 2020
    Assignee: AXENS
    Inventors: Arnaud Cotte, Jérôme Pigourier, Nicolas Pupat
  • PROCESS FOR PRODUCING PARA-XYLENE USING A STEP IN A SIMULATED MOVING BED AND A STEP OF FRACTIONATION VIA A THREE-FRACTION COLUMN
    Publication number: 20200002252
    Abstract: The present invention relates to a process for producing high-purity para-xylene, comprising a single step of separation by adsorption in an SMB, with a subsequent step of separation by distillation in a first three-fraction distillation column producing at least two raffinates and optionally of two isomerization steps, making it possible to improve the overall para-xylene yield of the aromatic loop and to minimize the economic impact.
    Type: Application
    Filed: June 27, 2019
    Publication date: January 2, 2020
    Applicant: AXENS
    Inventors: Isabelle PREVOST, Jerome PIGOURIER, Pierre-Yves MARTIN, Arnaud COTTE
  • PROCESS AND DEVICE FOR SEPARATING AROMATICS UNDER VACUUM
    Publication number: 20190338196
    Abstract: The present invention relates to a process and a device for separating a feedstock comprising benzene, toluene and C8+ compounds, by means of at least one “reformate” distillation column (C1), one aromatics extraction unit (P1), one para-xylene separation unit (P2), one xylene isomerization unit (P3) and one transalkylation unit (P4), the effluents of said units being separated in the following distillation columns: purification column (C6), deheptanizer (C7) and toluene column (C10), in which at least one of said distillation columns is suitable for being operated under vacuum so that: the majority of the C7? compounds are recovered in the product at the top of the distillation column operated under vacuum, and the majority of the C8+ compounds are recovered in the product at the bottom of the distillation column operated under vacuum.
    Type: Application
    Filed: May 2, 2019
    Publication date: November 7, 2019
    Inventors: Arnaud COTTE, Jérôme PIGOURIER, Nicolas PUPAT