Patents Examined by J. L. Woodard
  • Power recovery system for coal liquefaction process
    Patent number: 4510121
    Abstract: A flow work exchanger for use in feeding a reactant material to a high-pressure reactor vessel comprises an outer shell, an inner shell concentrically disposed within said outer shell, means for conducting said reactant into the lower end of said lower shell and then to said reactor vessel, and means for conducting a hotter product effluent from said reactor vessel into the upper end of said inner shell and out of the annulus between said inner and outer shells.
    Type: Grant
    Filed: November 17, 1982
    Date of Patent: April 9, 1985
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: Joel R. Horton, David M. Eissenberg