Patents by Inventor Loiec Rouleau

Loiec Rouleau 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).

  • Catalyst in the form of grains comprising an acidic porous core surrounded by a uniform outer layer
    Patent number: 8258071
    Abstract: The invention relates to a catalyst that comes in the form of grains, each grain consisting of a core covered by at least one external layer, the core consisting of an acidic porous solid and having a size of between 0.1 micron and 0.4 millimeter, in which the external layer has a uniform thickness with a uniformity criterion C, which is less than 0.30, whereby said uniformity criterion C is defined as being equal to an average, on a number N of catalyst grain samples, of the ratio of the difference between the maximum thickness, Eimax, of the external layer and the minimum thickness, Eimin, of this same layer to the average of these two thicknesses Eimax and Eimin.
    Type: Grant
    Filed: January 13, 2005
    Date of Patent: September 4, 2012
    Assignee: IFP Energies nouvelles
    Inventors: Younes Bouizi, Valentin Valtchev, Loiec Rouleau, Nicolas Bats, Laurent Simon
  • CATALYST IN THE FORM OF GRAINS COMPRISING AN ACIDIC POROUS CORE SURROUNDED BY A UNIFORM OUTER LAYER
    Publication number: 20090036294
    Abstract: The invention relates to a catalyst that comes in the form of grains, each grain consisting of a core covered by at least one external layer, the core consisting of an acidic porous solid and having a size of between 0.1 micron and 0.4 millimeter, in which the external layer has a uniform thickness with a uniformity criterion C, which is less than 0.30, whereby said uniformity criterion C is defined as being equal to an average, on a number N of catalyst grain samples, of the ratio of the difference between the maximum thickness, Eimax, of the external layer and the minimum thickness, Eimin, of this same layer to the average of these two thicknesses Eimax and Eimin.
    Type: Application
    Filed: January 13, 2005
    Publication date: February 5, 2009
    Inventors: Younes Bouizi, Valentin Valtchev, Loiec Rouleau, Nicolas Bats, Laurent Simon
  • Catalyst for hydrorefining and/or hydroconversion and its use in hydrotreatment processes for batches containing hydrocarbons
    Patent number: 7119045
    Abstract: This invention relates to a catalyst for hydrorefining and/or hydroconversion of hydrocarbon-containing feedstocks that contain compounds whose boiling point is higher than 520° C. and that contain sulfur and possibly metals, as well as its use in hydrorefining and/or hydroconversion processes of heavy feedstocks. A petroleum residue of atmospheric distillation (RA) or of vacuum distillation (RSV) or a deasphalted oil (DAO) are representative feedstocks of the feedstocks treated within the scope of this invention.
    Type: Grant
    Filed: May 27, 2003
    Date of Patent: October 10, 2006
    Assignee: Institut Francais du Petrole
    Inventors: Lionel Magna, Loiec Rouleau, Stephane Kressmann, Denis Jean Marie Guillaume
  • Catalyst for hydrorefining and/or hydroconversion and its use in hydrotreatment processes for batches containing hydrocarbons
    Publication number: 20040020829
    Abstract: This invention relates to a catalyst for hydrorefining and/or hydroconversion of hydrocarbon-containing feedstocks that contain compounds whose boiling point is higher than 520° C. and that contain sulfur and possibly metals, as well as its use in hydrorefining and/or hydroconversion processes of heavy feedstocks. A petroleum residue of atmospheric distillation (RA) or of vacuum distillation (RSV) or a deasphalted oil (DAO) are representative feedstocks of the feedstocks treated within the scope of this invention.
    Type: Application
    Filed: May 27, 2003
    Publication date: February 5, 2004
    Applicant: Institut Francais du Petrole
    Inventors: Lionel Magna, Loiec Rouleau, Stephane Kressman, Denis Jean Marie Guillaume