Patents by Inventor Stefan V. Slavov

Stefan V. Slavov 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).

  • Electrochemical process for oxidation of alkanes to alkenes
    Patent number: 7338587
    Abstract: An electrochemical process for the oxidation of an alkane to at least one corresponding alkene uses an electrochemical cell having an anode chamber on one side of a proton conducting medium, and a cathode chamber on the other side of the said medium. The alkane is oxidized in the anode chamber to produce at least one corresponding alkene and protons are transferred through a proton conducting membrane to the cathode chamber where protons combine with a proton acceptor, while generating electricity and water. An apparatus for use in the process is also provided.
    Type: Grant
    Filed: November 9, 2001
    Date of Patent: March 4, 2008
    Assignee: The Governors of the University of Alberta
    Inventors: Karl T. Chuang, Alan R. Sanger, Jingli Luo, Stefan V. Slavov
  • Electrochemical process for oxidation of alkanes to alkenes
    Publication number: 20040050713
    Abstract: An electrochemical process for the oxidation of an alkane to at least one corresponding alkene uses an electrochemical cell having an anode chamber on one side of a proton conducting medium, and a cathode chamber on the other side of the said medium. The alkane is oxidized in the anode chamber to produce at least one corresponding alkene and protons are transferred through a proton conducting membrane to the cathode chamber where protons combine with a proton acceptor, while generating electricity and water. An apparatus for use in the process is also provided.
    Type: Application
    Filed: October 10, 2003
    Publication date: March 18, 2004
    Inventors: Karl T. Chuang, Alan R. Sanger, Jingli Luo, Stefan V. Slavov
  • Electrochemical oxidation of hydrogen sulfide
    Patent number: 6241871
    Abstract: The invention relates to a process for gas phase electrochemical oxidation of H2S to sulfur and water or steam using an electrolysis cell having an anode chamber on one side of a solid proton conducting membrane and a cathode chamber on the other side of the membrane. The process comprises the steps of passing H2S-containing gas through the anode chamber to contact a catalytic anode, where it reacts to produce elemental sulfur, protons and electrons. The protons pass through the membrane from the anode chamber to the cathode chamber. An oxygen-containing gas is passed through the cathode chamber to contact the catalytic cathode, where it reacts with protons and electrons to produce water or steam. During the process, both the anode chamber and cathode chamber are maintained at a temperature of at least 120° C. and an elevated pressure sufficient to keep the membrane moist.
    Type: Grant
    Filed: May 19, 1999
    Date of Patent: June 5, 2001
    Assignee: Ethyl Tech Inc.
    Inventors: John C. Donini, Karl T. Chuang, Stefan V. Slavov, Alan R. Sanger, Vesna Stanic