Patents by Inventor James P. Dennis

James P. Dennis 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).

  • Benzene removal from hydrocarbon streams
    Patent number: 5210333
    Abstract: A method for the separation of benzene from a hydrocarbon stream, such as a gasoline boiling range stream, which comprises contacting the hydrocarbon stream with an adsorbent capable of selectively adsorbing the benzene from the stream, hydrogenating the adsorbed benzene to cyclohexane, and desorbing the cyclohexane from the adsorbent. The hydrogenation of the benzene to cyclohexane facilitates the removal of the benzene from the adsorbent.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: May 11, 1993
    Assignee: Exxon Research and Engineering Company
    Inventors: Richard J. Bellows, Gary B. McVicker, Joseph E. Baumgartner, James P. Dennis