Patents by Inventor Frede ricfmann

Frede ricfmann 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 regenerating a catalyst for the production of aromatic compounds or for reforming, with improved oxychlorination
    Patent number: 6133183
    Abstract: The invention concerns a process for regenerating a catalyst for the production of aromatic compounds, in particular for reforming, comprising combustion (A), oxychlorination (B) and calcining (C) steps, in which at least one chlorinating agent (conduit 19), at least one oxygen-containing gas (conduit 18), and water (conduit 20) are introduced into the oxychlorination step such that the H.sub.2 O/HCl molar ratio is 3 to 50, the oxychlorination step being carried out in the presence of an oxychlorination gas containing less than 21% of oxygen and at least 50 ppm by weight of chlorine (based on HCl), and at a temperature of 350-600.degree. C.
    Type: Grant
    Filed: April 14, 1998
    Date of Patent: October 17, 2000
    Assignee: Institut Francais du Petrole
    Inventors: Marianne Capelle, Jean-Marie Deves, Frede ricfmann, Michel Thery