Patents by Inventor Stephane Kressman

Stephane Kressman 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 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
  • Process for converting a heavy hydrocarbon fraction using an ebullated bed hydrodemetallization catalyst
    Patent number: 5980730
    Abstract: A process for converting a heavy hydrocarbon fraction comprises treating the hydrocarbon feed in a hydroconversion section in the presence of hydrogen, the section comprising at least one three-phase reactor containing at least one ebullated bed hydroconversion catalyst, operating in liquid and gas riser mode, said reactor comprising at least one means for removing catalyst from said reactor and at least one means for adding fresh catalyst to said reactor.
    Type: Grant
    Filed: October 1, 1997
    Date of Patent: November 9, 1999
    Assignee: Institut Francais du Petrole
    Inventors: Frederic Morel, Thierry Chapus, Stephane Kressman, Jean-Luc Duplan, Alain Billon, Gerard Heinrich