Patents by Inventor Wililam J. Lechnick

Wililam J. Lechnick 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).

  • Publication number: 20160053183
    Abstract: Methods for hydrogen sulfide recycling using selective solvents in the hydroprocessing of renewable feedstocks are provided. An exemplary method includes the steps of combining hydrogen sulfide with renewable hydrocarbon feedstocks to form a first stream, deoxygenating the first stream to form a second hydrocarbon stream comprising deoxygenated hydrocarbons, water, carbon dioxide, and hydrogen sulfide, and separating the carbon dioxide and the hydrogen sulfide from the second hydrocarbon stream to form a third recycle stream comprising carbon dioxide and hydrogen sulfide. The method further includes the steps of selectively scrubbing the hydrogen sulfide from the third recycle stream to form a fourth recycle stream comprising carbon dioxide and a fifth recycle stream comprising hydrogen sulfide and selectively scrubbing the carbon dioxide from the fourth recycle stream.
    Type: Application
    Filed: August 25, 2014
    Publication date: February 25, 2016
    Inventors: Donald A. Eizenga, Anthony A. Barnette, Wililam J. Lechnick, Stanley Joseph Frey