Patents by Inventor Gilbert Froment

Gilbert Froment 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 the selective hydroisomerization of long linear and/or slightly branched paraffins using a catalyst based on a molecular sieve
    Patent number: 5990371
    Abstract: The invention concerns a process for the selective hydroisomerisation of compounds containing at least one n-alkane chain containing more than 10 carbon atoms, in which the compound to be treated is brought into contact with a catalyst comprising at least one hydro-dehydrogenating element and at least one molecular sieve with a mono- or bidimensional pore network in which the openings of the accessible pores are delimited by 10 oxygen atoms, and the distance termed the bridge width between the pores is less than 0.70 nm, and in which the catalyst, when subjected to a standard n-heptadecane isomerization test, has a selectivity of at least 70% towards isomerized products for a conversion of 95%.The sieve is preferably a NU-10, NU-23, NU-87, EU-13 or Theta-1 zeolite.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: November 23, 1999
    Assignee: Institut Francais du Petrole
    Inventors: Johan Martens, Wim Souverijns, Rudy Parton, Gilbert Froment, Eric Benazzi, Nathalie George Marchal, Christian Marcilly