Patents by Inventor Robert E. McHarg

Robert E. McHarg 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).

  • Visbreaking process
    Patent number: 4536280
    Abstract: An improved visbreaking process having a lower utilities (heating fuel) cost is disclosed. The feed stream is heated by indirect heat exchange against the bottoms stream of a first fractionation column, which receives the effluent of the visbreaking heater. A portion of this bottoms stream is then used as quench. This quench stream is hotter and has a higher flow rate than previous designs. The feed is heated to a higher temperture by the indirect heat exchange and therefore less fuel is required in the visbreaker fired heater.
    Type: Grant
    Filed: December 19, 1983
    Date of Patent: August 20, 1985
    Assignee: UOP Inc.
    Inventors: John B. White, Jr., Robert E. McHarg, Frank Stolfa