Patents by Inventor Geir B. Lorentzen

Geir B. Lorentzen 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).

  • Solid/liquid slurry treatment apparatus and catalytic multi-phase reactor
    Patent number: 5520890
    Abstract: A multi phase catalytic reactor in which a liquid product is separated from a slurry phase containing a finely divided solid catalyst in a liquid medium. The apparatus includes a vessel which contains a number of vertical reaction tubes, arranged to accommodate the slurry phase. Each tube has a filter member in contact with the slurry phase within the tube. The filter members thus define a filtrate zone which is separated from the slurry phase. Gaseous reactants are introduced into the slurry phase within the tubes and a heat exchange medium is circulated around the outside of the tubes.
    Type: Grant
    Filed: August 18, 1994
    Date of Patent: May 28, 1996
    Assignee: Den norske stats oljeselskap A.S
    Inventors: Geir B. Lorentzen, Arild Westvik, Trond Myrstad