Patents by Inventor Pamela J. Dunne

Pamela J. Dunne 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).

  • Treatment of natural gas feeds
    Patent number: 8454727
    Abstract: The present invention provides a process for treating a natural gas stream comprising sending a natural gas stream to at least one membrane unit to produce a permeate stream containing a higher concentration of carbon dioxide and a retentate stream containing a lower concentration of carbon dioxide. Then the retentate stream is sent to an adsorbent bed to remove carbon dioxide and other impurities to produce a natural gas product stream. The regeneration gas stream is sent through the molecular sieve adsorbent bed to desorb the carbon dioxide. In one process flow scheme, the regeneration stream is combined with the permeate stream from the membrane unit. Then the combined stream is sent to an absorbent column to remove carbon dioxide from the permeate stream to produce a second natural gas product stream. In the alternative flow scheme, a second membrane unit is used to improve efficiency.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: June 4, 2013
    Assignee: UOP LLC
    Inventors: Lubo Zhou, Peter K. Coughlin, Pamela J. Dunne
  • Zeolite containing wash coats for adsorber heat exchangers and temperature controlled adsorbers
    Patent number: 8323747
    Abstract: The present invention provides a process for applying a coating on a heat exchanger or a temperature controlled adsorber surface. This coating comprises a zeolite, an organic solvent, an organic siloxane resin that constitutes a binder and a plasticizing agent.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: December 4, 2012
    Assignee: UOP LLC
    Inventors: Stephen R. Dunne, Pamela J. Dunne, legal representative, Alexander M. Bershitsky, Mariola J. Proszowski
  • ZEOLITE CONTAINING WASH COATS FOR ADSORBER HEAT EXCHANGERS AND TEMPERATURE CONTROLLED ADSORBERS
    Publication number: 20110319673
    Abstract: The present invention provides a process for applying a coating on a heat exchanger or a temperature controlled adsorber surface. This coating comprises a zeolite, an organic solvent, an organic siloxane resin that constitutes a binder and a plasticizing agent.
    Type: Application
    Filed: June 14, 2011
    Publication date: December 29, 2011
    Applicant: UOP LLC
    Inventors: Stephen R. Dunne, Pamela J. Dunne, Alexander M. Bershitsky, Mariola J. Proszowski
  • TREATMENT OF NATURAL GAS FEEDS
    Publication number: 20110290111
    Abstract: The present invention provides a process for treating a natural gas stream comprising sending a natural gas stream to at least one membrane unit to produce a permeate stream containing a higher concentration of carbon dioxide and a retentate stream containing a lower concentration of carbon dioxide. Then the retentate stream is sent to an adsorbent bed to remove carbon dioxide and other impurities to produce a natural gas product stream. The regeneration gas stream is sent through the molecular sieve adsorbent bed to desorb the carbon dioxide. In one process flow scheme, the regeneration stream is combined with the permeate stream from the membrane unit. Then the combined stream is sent to an absorbent column to remove carbon dioxide from the permeate stream to produce a second natural gas product stream. In the alternative flow scheme, a second membrane unit is used to improve efficiency.
    Type: Application
    Filed: May 3, 2011
    Publication date: December 1, 2011
    Applicant: UOP LLC
    Inventors: Stephen R. Dunne, Pamela J. Dunne, Lubo Zhou, Peter K. Coughlin