Patents by Inventor Preben Hasselgard

Preben Hasselgard 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, and processes for dehydrogenating dehydrogenatable hydrocarbons
    Patent number: 5922925
    Abstract: A process for dehydrogenating dehydrogenatable C.sub.2-30 hydrocarbons includes contacting the hydrocarbons under dehydrogenating conditions in one or more reaction zones with a solid catalyst. The solid catalyst includes at least a Group VIII noble metal, a Group IVA metal, and a carrier of a mixed oxide of magnesium and aluminum.
    Type: Grant
    Filed: May 18, 1998
    Date of Patent: July 13, 1999
    Assignee: Den norske stats oljeselskap a.s.
    Inventors: Duncan Akporiaye, Morten Ronnekleiv, Preben Hasselgard, Age Solbakken, deceased
  • Catalyst, and processes for dehydrogenating dehydrogenatable hydrocarbons
    Patent number: 5817596
    Abstract: A new catalyst, especially for the dehydrogenation of dehydrogenatable C.sub.2-30 hydrocarbons. The catalyst comprises a carrier consisting essentially of a mixed oxide of magnesium and alumina Mg(Al)O, and also comprises a Group VIII noble metal, a Group IVA metal and optionally a Group IA alkali metal. The catalyst may be subjected to a pretreatment comprising a reduction, a subsequent oxidation and finally a second reduction. The catalyst is particularly suitable for the dehydrogenation of C.sub.2-5 paraffins to olefins, with and without simultaneous oxidation of hydrogen.
    Type: Grant
    Filed: December 14, 1995
    Date of Patent: October 6, 1998
    Assignee: Den norske stats oljeselkap A.S.
    Inventors: Duncan Akporiaye, Morten Ronnekleiv, Preben Hasselgard