Patents by Inventor Gregory Demartin

Gregory Demartin 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).

  • Removal of CO2, N2, and H2S from gas mixtures containing same
    Publication number: 20080282887
    Abstract: The removal of one or more of the gases CO2, N2 and H2S from gas mixtures containing at least one of said gases with use of an 8-ring zeolite having a Si:Al ratio from about 1:1 to about 1000:1. The preferred gas mixture is a natural gas feedstream and the preferred 8-ring zeolite is DDR.
    Type: Application
    Filed: April 4, 2008
    Publication date: November 20, 2008
    Inventors: Ronald R. Chance, Sebastian C. Reyes, Harry W. Deckman, Gregory DeMartin, Bruce T. Kelley, Paul S. Northrop, Eugene R. Thomas
  • Separation of methanol, ethanol and/or dimethyl ether from hydrocarbon mixtures
    Publication number: 20050054885
    Abstract: The present invention is a separation process for producing a methanol, ethanol and/or dimethyl ether stream from a first stream containing C3+ hydrocarbons. The first stream comprises C3+ hydrocarbons, methanol, ethanol and/or dimethyl ether. The process comprises the step of passing the first stream through an adsorbent bed having a crystalline microporous material that preferentially adsorbs methanol, ethanol and/or dimethyl ether over the C3+ hydrocarbons.
    Type: Application
    Filed: September 8, 2003
    Publication date: March 10, 2005
    Inventors: Sebastian Reyes, Venkatesan Krishnan, Gregory Demartin, John Sinfelt, Karl Strohmaier, Jose Santiesteban