Patents by Inventor Alkis Rappas

Alkis Rappas 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: 20160137924
    Abstract: Methods of separating and utilizing char produced by the catalytic fast pyrolysis of biomass are described. In a preferred method, a portion of the char from a catalytic pyrolysis reactor is recovered and treated and combusted to provide heat to the catalytic pyrolysis reactor. A novel char and methods of amending soil with a char composition are also described.
    Type: Application
    Filed: November 17, 2015
    Publication date: May 19, 2016
    Inventors: Terry J. Mazanec, Michael Tanzio, Charles M. Sorensen, JR., Ruozhi Song, Jian Shi, Yu-Ting Cheng, William F. Igoe, JR., Alkis Rappas, Sandeep K. Goud
  • Publication number: 20050218038
    Abstract: Embodiments of the invention provide a process for selectively removing polyene compounds from a hydrocarbon stream. The process comprises the steps of contacting the polyene compounds with sulfuric acid at ambient temperature and sufficient time to form two phases. The phases consist of a hydrocarbon phase with substantially no loss in octane number and a spent acid phase. The hydrocarbon phase can then be sent to an optimized desulfurization process.
    Type: Application
    Filed: March 31, 2004
    Publication date: October 6, 2005
    Inventors: Vincent Nero, Alkis Rappas, Fu-Ming Lee