Patents by Inventor Leonard E. Bell

Leonard E. Bell 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).

  • METHOD AND SYSTEM RELATING TO A WET GAS COMPRESSOR
    Publication number: 20100243528
    Abstract: One exemplary embodiment can be a method for revamping a fluid catalytic cracking unit. The method can include communicating an expander powered by a regeneration zone flue gas stream with a wet gas compressor transferring a stream including one or more hydrocarbons from a receiver of the fluid catalytic cracking unit.
    Type: Application
    Filed: March 30, 2009
    Publication date: September 30, 2010
    Inventors: Leonard E. Bell, Keith Allen Couch
  • Fluid catalytic cracking steam pressure letdown power recovery system and process
    Patent number: 7757493
    Abstract: A system and method are provided for recovering power from hot flue gas of a catalyst regenerator in an FCC unit and an integrated fluid catalytic cracking steam pressure letdown. The system includes a flue gas power recovery system including an expander and a turbine for generating power by letting down steam from a higher pressure to a lower pressure for use in a refinery process such as an FCC unit.
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: July 20, 2010
    Assignee: UOP LLC
    Inventors: Leonard E. Bell, Keith A. Couch
  • Apparatus and process for power recovery
    Patent number: 7048782
    Abstract: Disclosed is a third stage separator which includes two main clean gas outlets. One main clean gas outlet communicates with a power recovery unit such as an expander turbine while the second main clean gas outlet communicates with a conduit that bypasses the expander turbine. The present invention avoids use of the extra equipment, engineering and installation labor required to prevent the bypass conduit from placing a force load on the line to the power recovery unit.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: May 23, 2006
    Assignee: UOP LLC
    Inventors: Keith A. Couch, Leonard E. Bell, Richard A. Johnson, II