Patents by Inventor Gregory M. Lipkin

Gregory M. Lipkin 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).

  • Process for separating hydrocarbons
    Patent number: 4954247
    Abstract: A process for improving the separation of a hydrocarbonaceous oil is provided, in which the oil is separated into fractions in an atmospheric distillation zone. The heavy bottoms fraction (atmospheric residuum) is split into two streams. One stream is passed through a heating zone and, subsequently, to a vacuum separation zone. The other stream by-passes the heating zone and is introduced directly into the vacuum separation zone.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: September 4, 1990
    Assignee: Exxon Research and Engineering Company
    Inventors: Gregory M. Lipkin, Joseph L. Niedzwiecki
  • Process for separating hydrocarbons
    Patent number: 4919794
    Abstract: A process for improving the separation of a hydrocarbon mixture is provided in which the hydrocarbon mixture is separated into fractions in a distillation zone. A liquid fraction and a portion of the vapor phase fraction are removed from the distillation zone as sidestream and introduced into a separation zone comprising a stripping gas to be stripped simultaneously. The resulting stripped vapor is recycled to an upper portion of the distillation zone.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: April 24, 1990
    Assignee: Exxon Research and Engineering Company
    Inventors: Gregory M. Lipkin, Joseph L. Niedzwiecki
  • Distillation process
    Patent number: 4662995
    Abstract: A method and apparatus for improving the separation of a distillation system comprising a main distillation zone and at least one sidestream separation zone is described. The method comprises returning vapor separated in the sidestream separation zone to the main distillation zone at a location at least two trays and/or at least one theoretical stage above the liquid draw-off from the main distillation zone to the sidestream separation zone.
    Type: Grant
    Filed: June 25, 1985
    Date of Patent: May 5, 1987
    Assignee: Exxon Research and Engineering Company
    Inventors: Gregory M. Lipkin, Byron C. Lynch