Patents by Inventor Michel L. Lairoix

Michel L. Lairoix 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).

  • Method for hydroprocessing hydrocarbon-based charges
    Patent number: 4769129
    Abstract: This invention relates to a method of hydrotreating hydrocarbon-based charges by using a catalyst that comprises V.sub.2 S.sub.3 prepared in situ in the reaction zone or V.sub.2 S.sub.3 prepared outside this zone but treated in this zone by a sulphurating agent. The hydrotreating method according to the invention can be used to treat hydrocarbon-based charges such as gasoline, gasoil, refinery residues and heavy crude oils, thus allowing the elimination of impurities such as nitrogen, sulphur and metals. The method can also be used to hydrogenize the olefins and the aromatics and possibly lead to rupture of the carbon-carbon bonds.
    Type: Grant
    Filed: October 17, 1986
    Date of Patent: September 6, 1988
    Assignee: Elf France
    Inventors: Thierry J. Barbou des Courieres, Michele J. Breysse, Michel L. Lairoix, Michel L. Vrinat