Patents by Inventor Tamara L. Daugherty

Tamara L. Daugherty 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).

  • Recompression cycle for recovery of natural gas liquids
    Patent number: 5588308
    Abstract: Natural gas liquids (NGLs) are recovered by cooling and partial condensation of a purified natural gas feed wherein a portion of the necessary feed cooling and condensation duty is provided by expansion and vaporization of condensed feed liquid after methane stripping, thereby yielding a vaporized NGL product. Additional refrigeration for feed cooling is provided by vaporizing methane-stripped liquid, which in turn provides vapor boilup for the stripping step. Recompression and cooling of the vaporized NGL product can be utilized if a liquid product is required.
    Type: Grant
    Filed: August 21, 1995
    Date of Patent: December 31, 1996
    Assignee: Air Products And Chemicals, Inc.
    Inventors: Tamara L. Daugherty, Christopher F. Harris