Patents Examined by A. R. McFarlane
  • Hydroprocessing of heavy hydrocarbonaceous oils
    Patent number: 4376037
    Abstract: A heavy hydrocarbonaceous oil feed is hydrogenated in a one or two stage process by contacting the oil with hydrogen in the presence of added dispersed hydrogenation catalyst, suspended in the oil, and porous solid contact particles. In the two stage process, at least part of the normally liquid product from the first stage is hydrogenated in a catalytic hydrogenation reactor.
    Type: Grant
    Filed: October 16, 1981
    Date of Patent: March 8, 1983
    Assignee: Chevron Research Company
    Inventors: Arthur J. Dahlberg, John H. Shinn, Joel W. Rosenthal, Tim T. Chu