Patents by Inventor George S. Pappas

George S. Pappas 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).

  • Catalyst for reduced nitrogen oxide (NO) emissions in an oxodehydrogenation process
    Patent number: 10035136
    Abstract: The present invention discloses a process to treat a ferrite based catalyst useful in the oxidative dehydrogenation of monololefins and diolefins which process includes a preheat step prior to use of the catalyst in the OXO-D reactor. The catalyst is preferably a zinc ferrite catalyst for the production of butadiene. It has been observed that substantially no nitrogen oxide emissions result from the use of this treated catalyst in the reactor unit during the oxidative dehydrogenation reaction.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: July 31, 2018
    Assignee: TPC Group LLC
    Inventors: Joseph G. Duff, Jillian M. Horn, Michael O. Nutt, George S. Pappas
  • CATALYST FOR REDUCED NITROGEN OXIDE (NOx) EMISSIONS IN AN OXODEHYDROGENATION PROCESS
    Publication number: 20170036195
    Abstract: The present invention discloses a process to treat a ferrite based catalyst useful in the oxidative dehydrogenation of monololefins and diolefins which process includes a preheat step prior to use of the catalyst in the OXO-D reactor. The catalyst is preferably a zinc ferrite catalyst for the production of butadiene. It has been observed that substantially no nitrogen oxide emissions result from the use of this treated catalyst in the reactor unit during the oxidative dehydrogenation reaction.
    Type: Application
    Filed: March 25, 2015
    Publication date: February 9, 2017
    Inventors: Joseph G. Duff, Jillian M. Horn, Michael O. Nutt, George S. Pappas