Patents by Inventor Mafer E. Tunison

Mafer E. Tunison 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).

  • Catalysts and process for oligomerization of olefins with nickel-containing zeolite catalysts
    Patent number: 5108970
    Abstract: There are disclosed catalysts and process for oligomerizing C.sub.3 -C.sub.12 olefins in the liquid phase at 50.degree. C.-150.degree. C. in the presence of a nickel containing zeolite catalyst, the zeolite being a Cs or Ba exchanged CSZ-1, high silica ultra-stable faujasite and zeolites isostructural with mazzite.
    Type: Grant
    Filed: March 18, 1991
    Date of Patent: April 28, 1992
    Assignee: Exxon Chemical Patents Inc.
    Inventors: David A. Young, David E. Vaughan, Roy L. Pruett, Mafer E. Tunison
  • Catalysts and process for oligomerization of olefins with nickel-containing zeolite catalysts
    Patent number: 4855528
    Abstract: There are disclosed catalysts and process for oligomerizing C.sub.3 -C.sub.12 olefins in the liquid phase at 50.degree. C.-150.degree. C. in the presence of a nickel containing zeolite catalyst, the zeolite being a Cs or Ba exchanged CSZ-1, high silica ultra-stable faujasite and zeolites isostructural with mazzite.
    Type: Grant
    Filed: February 5, 1988
    Date of Patent: August 8, 1989
    Assignee: Exxon Chemical Patents Inc.
    Inventors: David A. Young, David E. Vaughan, Roy L. Pruett, Mafer E. Tunison
  • Hydrocarbon hydrocracking process
    Patent number: 4368113
    Abstract: A hydrocracking process is provided in which the heavy bottoms fraction recovered from the hydrocracked product is heat treated prior to being recycled to the hydrocracking zone. The resulting hydrocracked product has an increased amount of constituents boiling in the middle distillate range.
    Type: Grant
    Filed: August 31, 1981
    Date of Patent: January 11, 1983
    Assignee: Exxon Research and Engineering Co.
    Inventors: William E. Winter, Mafer E. Tunison, David W. Staubs