Patents by Inventor Julie Birashk

Julie Birashk 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).

  • Nitric acid regeneration fuel cell systems
    Patent number: 9184463
    Abstract: The present invention disclosed herein is directed to nitric acid regeneration fuel cell systems that comprise: an anode; a cathode confronting and spaced apart from the anode; an anolyte flowstream configured to flowingly contact the anode, wherein the anolyte flowstream includes a fuel, preferably methanol, for reacting at the anode; a catholyte flowstream configured to flowingly contact the cathode, wherein the catholyte flowstream includes nitric acid for reacting at the cathode to thereby yield cathode reaction products that include nitric oxide and water in a catholyte effluent flowstream; and a hydrogen peroxide flowstream configured to contact and react hydrogen peroxide with the nitric oxide of the catholyte effluent flowstream at a hydrogen peroxide oxidation zone to thereby yield a regenerated nitric acid flowstream. The regenerated nitric acid flowstream is preferably reused in the catholyte flowstream.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: November 10, 2015
    Inventors: Leroy J. Ohlsen, Slobodan Petrovic, David W. Wine, Lorne Roy, Julie Birashk
  • Nitric acid regeneration fuel cell systems
    Publication number: 20050084738
    Abstract: The present invention disclosed herein is directed to nitric acid regeneration fuel cell systems that comprise: an anode; a cathode confronting and spaced apart from the anode; an anolyte flowstream configured to flowingly contact the anode, wherein the anolyte flowstream includes a fuel, preferably methanol, for reacting at the anode; a catholyte flowstream configured to flowingly contact the cathode, wherein the catholyte flowstream includes nitric acid for reacting at the cathode to thereby yield cathode reaction products that include nitric oxide and water in a catholyte effluent flowstream; and a hydrogen peroxide flowstream configured to contact and react hydrogen peroxide with the nitric oxide of the catholyte effluent flowstream at a hydrogen peroxide oxidation zone to thereby yield a regenerated nitric acid flowstream. The regenerated nitric acid flowstream is preferably reused in the catholyte flowstream.
    Type: Application
    Filed: October 15, 2004
    Publication date: April 21, 2005
    Inventors: Leroy Ohlsen, Slobodan Petrovic, David Wine, Lorne Roy, Julie Birashk