Patents by Inventor Hedi Azib

Hedi Azib 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 catalyst preparation
    Patent number: 6482766
    Abstract: The invention concerns the preparation of a catalyst comprising a support comprising at least one oxide of the element Si, Al, Ti, Zr, Sn, Zn, Mg or Ln (where Ln is a rare earth), cobalt, titanium, at least one element A selected from the group formed by copper, ruthenium, platinum, palladium, scandium and yttrium, and characterized in that it comprises at least the following successive steps: (1) forming a precursor comprising at least cobalt, element A and the support; (2) at least partial reduction of said precursor in the presence of at least one reducing compound; and (3) depositing titanium on the reduced precursor. The invention also concerns the catalyst which can be produced using this process and the use of the catalyst in a process for synthesising C5+ hydrocarbons from synthesis gas.
    Type: Grant
    Filed: June 20, 2000
    Date of Patent: November 19, 2002
    Assignees: Instuit Francais du Petrole, Agip Petroli S.p.A.
    Inventors: Patrick Chaumette, Olivier Clause, Hedi Azib
  • Process for converting synthesis gas in the presence of a catalyst based on cobalt and titanium
    Patent number: 5783607
    Abstract: The invention concerns the preparation of a catalyst comprising a support comprising at least one oxide of the element Si, Al, Ti, Zr, Sn, Zn, Mg or Ln (where Ln is a rare earth), cobalt, titanium, at least one element A selected from the group formed by copper, ruthenium, platinum, palladium, scandium and yttrium, and characterized in that it comprises at least the following successive steps:(1) forming a precursor comprising at least cobalt, element A and the support;(2) at least partial reduction of said precursor in the presence of at least one reducing compound; and(3) depositing titanium on the reduced precursor.The invention also concerns the catalyst which can be produced using this process and the use of the catalyst in a process for synthesizing C.sub.5.sup.+ hydrocarbons from synthesis gas.
    Type: Grant
    Filed: April 8, 1997
    Date of Patent: July 21, 1998
    Assignees: Institut Francais du Petrole, AGIP Petroli S.p.A.
    Inventors: Patrick Chaumette, Olivier Clause, Hedi Azib