Patents by Inventor Catherine Laroche

Catherine Laroche 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: 20200330942
    Abstract: The invention relates to a pretreatment process for improving the filling of a chamber with solid particles, in which said solid particles are mixed before loading of said solid particles into the chamber with at least one lubricant that is solid at ambient temperature chosen from saturated fatty acids having 14 or more carbon atoms, metal salts of saturated fatty acids having 14 or more carbon atoms, esters of fatty acids having 14 or more carbon atoms, fatty alcohols having 14 or more carbon atoms, linear N-alkanes having 16 or more carbon atoms in solid form, fumaric acid, talc, sodium stearoyl fumarate, the lubricant being introduced at a content of between 0.01% and 1% relative to the total weight of the mixture of solid particles and lubricant. The invention also relates to the use of the process for the pretreatment of particles of adsorbents for the separation of xylenes.
    Type: Application
    Filed: November 30, 2018
    Publication date: October 22, 2020
    Applicant: IFP Energies nouvelles
    Inventors: Guillaume BLANCKE, Morgane JOSSERAND, Danielle RICHARD, Catherine LAROCHE
  • Publication number: 20200316558
    Abstract: The present invention relates to zeolite adsorbents based on agglomerated crystals of zeolite X comprising barium, potassium, sodium and strontium. These adsorbents have applications in the separation of fractions of aromatic C8 isomers and in particular xylenes.
    Type: Application
    Filed: December 17, 2018
    Publication date: October 8, 2020
    Applicants: Arkema France, IFP Energies Nouvelles
    Inventors: Catherine Laroche, Ludivine Bouvier, Javier Perez-Pellitero, Marie-Laurence Labede
  • 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
  • Patent number: 10723677
    Abstract: The present invention relates to a zeolitic granular material having a connected zeolitic structure across the entire volume thereof, having high mechanical resistance to crushing in the bed, and optimised material transfer in the macro-mesopores. The invention also relates to the method for preparing said zeolitic granular material, as well as to the use thereof as an adsorbent material in co-current or counter-current liquid phase separation methods, typically in a simulated mobile bed.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: July 28, 2020
    Assignees: ARKEMA FRANCE, IFP ENERGIES NOUVELLES
    Inventors: Catherine Laroche, Ludivine Bouvier, Philibert Leflaive, Cecile Lutz, Anne-Sophie Gay, Florent Moreau
  • Patent number: 10722862
    Abstract: The present invention relates to zeolitic adsorbents based on small agglomerated crystals of zeolite X comprising barium, combining optimum properties in terms of selectivity and of mechanical strength. These adsorbents have applications in the separation of fractions of aromatic C8 isomers and in particular xylenes, in the separation of substituted toluene isomers, such as nitrotoluene, diethyltoluene or toluenediamine, in the separation of cresols and in the separation of polyhydric alcohols, such as sugars.
    Type: Grant
    Filed: December 10, 2013
    Date of Patent: July 28, 2020
    Assignees: ARKEMA FRANCE, IFP ENERGIES NOUVELLES
    Inventors: Ludivine Bouvier, Stephane Kieger, Catherine Laroche, Philibert Leflaive
  • Publication number: 20200223770
    Abstract: Provided is a hybrid process for producing high-purity para-xylene from a feedstock of aromatic hydrocarbon isomer fractions having 8 carbon atoms, in a liquid phase. The process includes a liquid chromatography separation step and a crystallization step of the para-xylene from the purified stream of para-xylene obtained at the separation step.
    Type: Application
    Filed: September 4, 2018
    Publication date: July 16, 2020
    Applicants: IFP Energies Nouvelles, Arkema France
    Inventors: Catherine Laroche, Morgane Josserand, Danielle Richard, Javier Perez-Pellitero, Ludivine Bouvier
  • Patent number: 10675607
    Abstract: The present invention relates to zeolitic adsorbents based on agglomerated crystals of FAU zeolite containing barium and/or potassium, with large external surface area, combining optimum properties in terms of selectivity and mechanical strength. These adsorbents find applications in the separation of cuts of C8-aromatic isomers and notably of xylenes, in the separation of isomers of substituted toluene such as nitrotoluene, diethyltoluene, toluenediamine, in the separation of cresols, and in the separation of polyhydric alcohols such as sugars.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: June 9, 2020
    Assignees: Arkema France, IFP Energies Nouvelles
    Inventors: Catherine Laroche, Philibert Leflaive, Ludivine Bouvier, Serge Nicolas, Cecile Lutz, Marie-Laurence Labede
  • Publication number: 20190381488
    Abstract: The invention relates to an oxygen carrier solid, its preparation and its use in a method of combustion of a hydrocarbon feedstock by active mass chemical-looping oxidation-reduction, i.e. chemical-looping combustion (CLC). The solid, which is hi the form of particles, comprises an oxidation-reduction active mass composed of metal oxide(s) dispersed in a ceramic matrix comprising at least at least one feldspar or feldspathoid with a melting point higher than 1500° C., such as celsian, and has, initially, a specific macroporous texture. The oxygen carrier solid is prepared from a precursor of the ceramic matrix, obtained from a macroporous zeolitic material with zeolite crystals of a specific size, and a precursor of the oxidation-reduction active mass.
    Type: Application
    Filed: December 21, 2017
    Publication date: December 19, 2019
    Inventors: Arnold LAMBERT, Catherine LAROCHE, Delphine MARTI, Elodie COMTE
  • Patent number: 10487027
    Abstract: The invention relates to zeolitic absorbents based on at least one zeolite with hierarchical porosity, containing barium or barium and potassium, to the uses thereof for separating para-xylene from aromatic fractions containing 8 carbon atoms, and to the method for separating para-xylene from aromatic fractions containing 8 carbon atoms.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: November 26, 2019
    Assignee: Arkema France
    Inventors: Catherine Laroche, Ludivine Bouvier, Cecile Lutz, Arnaud Baudot
  • Patent number: 10449511
    Abstract: The present invention relates to a zeolite absorbent comprising at least one FAU zeolite with hierarchical porosity and comprising barium or barium and potassium, and the external surface area of which is greater than 20 m2·g?1, and the non-zeolite phase content being between 6% and 12% by weight with respect to the total weight of the absorbent. The present invention also relates to the use of such a zeolite absorbent as an adsorption agent, as well as the method for separation of para-xylene from aromatic isomer fractions with 8 carbon atoms.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: October 22, 2019
    Assignee: Arkema France
    Inventors: Ludivine Bouvier, Cecile Lutz, Catherine Laroche, Arnaud Baudot
  • Patent number: 10414702
    Abstract: Process for separating xylenes starting from a feed comprising cuts of isomers of aromatic hydrocarbons containing 8 carbon atoms, in a simulated moving bed, by selective adsorption of a xylene isomer in the presence of a desorbent, by means of particles of agglomerated zeolitic adsorbent based on zeolite crystals with a number-average diameter less than or equal to 1.2 ?m, wherein the number-average diameter of said particles of adsorbent is between 150 ?m and 500 ?m and the mechanical strength measured by the Shell method series SMS1471-74 adapted for agglomerates with a size below 500 ?m is greater than or equal to 2 MPa.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: September 17, 2019
    Assignees: IFP ENERGIES NOUVELLES, Arkema France
    Inventors: Catherine Laroche, Damien Leinekugel Le Cocq, Philibert LeFlaive, Frederic Augier, Ludivine Bouvier, Cecile Lutz, Sylvie Szendrovics, Quitterie Persillon
  • Patent number: 10315132
    Abstract: The present invention describes a process for separating xylenes in simulated counter-current (simulated moving bed, SMB) for the treatment of feeds including oxygen-containing aromatic impurities of the phenol type and/or derivatives thereof, by controlled injection of water in the ingoing streams.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: June 11, 2019
    Assignee: IFP ENERGIES NOUVELLES
    Inventors: Catherine Laroche, Philibert Leflaive, Thierry Leflour
  • Publication number: 20190160450
    Abstract: Provided is a zeolite-based adsorbent in the form of agglomerates, where the adsorbent having a tortuosity factor, calculated from the pore distribution determined by mercury intrusion porosimetry, of greater than 1 and less than 3. The adsorbent also has a porosity as determined by mercury intrusion porosimetry of between 25% and 35%. The adsorbent is useful in the field of separations in particular in a process for separating para-xylene from aromatic hydrocarbon isomer fractions containing 8 carbon atoms.
    Type: Application
    Filed: June 28, 2017
    Publication date: May 30, 2019
    Applicants: IFP Energies Nouvelles, Arkema France
    Inventors: Catherine Laroche, Philibert Leflaive, Ludivine Bouvier, Cécile Lutz
  • Patent number: 10214467
    Abstract: The present invention describes a process for the simulated moving bed separation of xylenes which can be used for the treatment of paraxylene-rich feeds (more than 25% by weight of paraxylene), in which the operating conditions are optimized by means of a specific relationship between the cycle time and the desorbant flow rate.
    Type: Grant
    Filed: May 17, 2018
    Date of Patent: February 26, 2019
    Assignee: IFP Energies nouvelles
    Inventors: Alexandre Vonner, Damien Leinekugel Le Cocq, Catherine Laroche, Pascal Etienne
  • Patent number: 10190987
    Abstract: A method for measuring the concentrations of species present at at least one point of a separation unit operating in simulated moving bed (SMB) mode, or a hybrid separation unit employing a step for simulated moving bed (SMB) separation and a step for crystallization, by calibration by inline acquisition of Raman spectra for different mixtures; analysis by inline signal processing of the Raman spectrum.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: January 29, 2019
    Assignee: IFP Energies Nouvelles
    Inventors: Javier Perez Pellitero, Catherine Laroche, Olivier Delpoux, David Goncalves
  • Patent number: 10150717
    Abstract: The present invention describes a process for the simulated moving bed separation of xylenes, in which the operating conditions are optimized by means of a specific relationship between the cycle time and the flow rate of the desorbant.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: December 11, 2018
    Assignee: IFP Energies Nouvelles
    Inventors: Alexandre Vonner, Damien Leinekugel Le Cocq, Catherine Laroche, Pascal Etienne
  • Publication number: 20180334415
    Abstract: The present invention describes a process for the simulated moving bed separation of xylenes which can be used for the treatment of paraxylene-rich feeds (more than 25% by weight of paraxylene), in which the operating conditions are optimized by means of a specific relationship between the cycle time and the desorbant flow rate.
    Type: Application
    Filed: May 17, 2018
    Publication date: November 22, 2018
    Applicant: IFP Energies nouvelles
    Inventors: Alexandre VONNER, Damien LEINEKUGEL LE COCQ, Catherine LAROCHE, Pascal ETIENNE
  • Patent number: 10125064
    Abstract: The invention relates to a method for separating meta-xylene from C8 aromatic fractions, using a zeolitic adsorbent based on sodium-exchanged or sodium-and-lithium-exchanged agglomerated crystals of zeolite Y, with a large external surface area.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: November 13, 2018
    Assignees: IFP ENERGIES NOUVELLES, ARKEMA FRANCE
    Inventors: Catherine Laroche, Philibert Leflaive, Arnaud Baudot, Ludivine Bouvier, Cecile Lutz, Serge Nicolas
  • Patent number: 10112173
    Abstract: The invention relates to an adsorbent comprising a zeolite-based phase and a non-zeolite-based phase, said adsorbent having: an outer surface area of less than or equal to 30 m2·g?1, preferably less than or equal to 20 m2·g?1, a zeolite-based phase comprising at least one zeolite of FAU structure of X type, and a pore diameter distribution, determined by mercury intrusion according to standard ASTM D 4284-83 and expressed by the volume distribution dV/dlogDHg, in which DHg is the apparent pore diameter and V is the pore volume, the mode of which is between 100 nm and 250 nm, limits inclusive. The invention also relates to a process for preparing the said adsorbent and to the uses thereof, especially for separating xylene isomers.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: October 30, 2018
    Assignees: Arkema France, IFP Energies Nouvelles
    Inventors: Ludivine Bouvier, Cécile Lutz, Catherine Laroche
  • Publication number: 20180258013
    Abstract: The present invention describes a process for the simulated moving bed separation of xylenes, in which the operating conditions are optimized by means of a specific relationship between the cycle time and the flow rate of the desorbant.
    Type: Application
    Filed: March 12, 2018
    Publication date: September 13, 2018
    Applicant: IFP Energies Nouvelles
    Inventors: Alexandre VONNER, Damien LEINEKUGEL LE COCQ, Catherine LAROCHE, Pascal ETIENNE