Patents by Inventor Ewa A. TOCHA-BIELAK

Ewa A. TOCHA-BIELAK 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: 20230062065
    Abstract: A process for preparing C2 to C4 olefins includes introducing a feed stream of hydrogen gas and a carbon-containing gas into a reaction zone of a reactor and converting the feed stream into a product stream including C2 to C4 olefins in the reaction zone in the presence of a hybrid catalyst and in a non-oxidative atmosphere. The hybrid catalyst includes a metal oxide catalyst component comprising gallium oxide and zirconia, and a microporous catalyst component having an 8 membered ring structure. The process also includes periodically introducing an oxidative atmosphere into the reaction zone.
    Type: Application
    Filed: December 14, 2020
    Publication date: March 2, 2023
    Applicant: Dow Global Technologies LLC
    Inventors: Joseph F. DEWILDE, Adam CHOJECKI, Alexey KIRILIN, Ewa A. TOCHA-BIELAK, David F. Yancey, Glenn Pollefeyt, Davy L.S. NIESKENS, Andrzej MALEK