Patents by Inventor John Henry Sinfelt

John Henry Sinfelt 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).

  • Separation of methanol, ethanol and/or dimethyl ether from hydrocarbon mixtures
    Patent number: 6984765
    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: Grant
    Filed: September 8, 2003
    Date of Patent: January 10, 2006
    Assignee: ExxonMobil Chemical Patents Inc.
    Inventors: Sebastian C. Reyes, Venkatesan V. Krishnan, Gregory J. DeMartin, John Henry Sinfelt, Karl G. Strohmaier, Jose Guadalupe Santiesteban
  • Hydrocarbon conversion catalyst
    Patent number: 3956190
    Abstract: Hydrocarbon materials are converted to useful products by contacting the same at elevated temperatures with a catalyst comprising a refractory support in association with greater than 0.1 wt. % of iridium, osmium, ruthenium or rhodium. The catalyst metal, preferably iridium, is present on the surface of the support in highly dispersed form. The catalyst is particularly effective for promoting naphtha reforming operations.
    Type: Grant
    Filed: December 12, 1974
    Date of Patent: May 11, 1976
    Assignee: Exxon Research & Engineering Co.
    Inventor: John Henry Sinfelt