Patents by Inventor David F. Yancey

David F. Yancey 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: 20240132423
    Abstract: A process for preparing C2 to C4 hydrocarbons includes introducing a feed stream including hydrogen gas and a carbon-containing gas selected from the group consisting of carbon monoxide, carbon dioxide, and mixtures thereof into a reaction zone of a reactor, and converting the feed stream into a product stream including C2 to C4 hydrocarbons in the reaction zone in the presence of a formed hybrid catalyst. The formed hybrid catalyst includes a metal oxide catalyst component including gallium oxide and zirconia, a microporous catalyst component that is a molecular sieve having 8-MR (Membered Ring) pore openings, and a binder including alumina, zirconia, or both.
    Type: Application
    Filed: February 18, 2022
    Publication date: April 25, 2024
    Applicant: Dow Global Technologies LLC
    Inventors: Glenn Pollefeyt, Fang Du, Ewa Tocha, Alexey Kirilin, Christopher Ho, David F. Yancey, Davy L. S. Nieskens, Andrzej Malek
  • Patent number: 11794181
    Abstract: Embodiments of the present disclosure are directed to methods of producing a hydrogen-selective oxygen carrier material comprising combining one or more core material precursors and one or more shell material precursors to from a precursor mixture and heat-treating the precursor mixture at a treatment temperature to form the hydrogen-selective oxygen carrier material. The treatment temperature is greater than or equal to 100° C. less than the melting point of a shell material, and the hydrogen-selective oxygen carrier material comprises a core comprising a core material and a shell comprising the shell material. The shell material may be in direct contact with at least a majority of an outer surface of the core material.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: October 24, 2023
    Assignee: Dow Global Technologies LLC
    Inventors: Manish Sharma, Brian W. Goodfellow, David F. Yancey, Andrzej Malek, Eric E. Stangland
  • 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
  • Publication number: 20220088574
    Abstract: A method for preparing C2 to C5 paraffins includes introducing a feed stream including hydrogen gas and a carbon-containing gas selected from carbon monoxide, carbon dioxide, and mixtures thereof into a reaction zone of a reactor. Converting the feed stream into a product stream including C2 to C5 paraffins in the presence of a hybrid catalyst. The hybrid catalyst includes a microporous catalyst component; and a metal oxide catalyst component selected from (A) a bulk material consisting of gallium oxide, (B) gallium oxide present on a titanium dioxide support material, and (C) a mixture of gallium oxide and at least one promoter present on a support material selected from Group 4 of the IUPAC periodic table of elements.
    Type: Application
    Filed: December 16, 2019
    Publication date: March 24, 2022
    Applicant: Dow Global Technologies LLC
    Inventors: Alexey Kirilin, Adam Chojecki, Glenn Pollefeyt, Davy L.S. Nieskens, Kyle C. Andrews, Vera P. Santos Castro, Joseph F. DeWilde, David F. Yancey, Andrzej Malek
  • Publication number: 20220080392
    Abstract: A process for preparing C2 to C4 olefins includes introducing a feed stream comprising hydrogen gas and a carbon-containing gas selected from carbon monoxide, carbon dioxide, and mixtures thereof into a reaction zone of a reactor. The feed stream is converted into a product stream including C2 to C4 olefins in the reaction zone in the presence of the hybrid catalyst. The hybrid catalyst includes a metal oxide catalyst component comprising gallium oxide and phase pure zirconia, and a microporous catalyst component.
    Type: Application
    Filed: December 16, 2019
    Publication date: March 17, 2022
    Applicant: Dow Global Technologies LLC
    Inventors: Adam Chojecki, Alexey Kirilin, Andrzej Malek, Joseph F. DeWilde, Vera P. Santos Castro, David F. Yancey, Kyle C. Andrews
  • Publication number: 20210317004
    Abstract: Embodiments of the present disclosure are directed to hydrogen-selective oxygen carrier materials and methods of using hydrogen-selective oxygen carrier materials. The hydrogen-selective oxygen carrier material may comprise a core material, which includes a redox-active transition metal oxide; a shell material, which includes one or more alkali transition metal oxides; and a support material. The shell material may be in direct contact with at least a majority of an outer surface of the core material. At least a portion of the core material may be in direct contact with the support material. The hydrogen-selective oxygen carrier material may be selective to combust hydrogen in an environment that includes hydrogen and hydrocarbons.
    Type: Application
    Filed: August 27, 2019
    Publication date: October 14, 2021
    Applicant: Dow Global Technologies LLC
    Inventors: Brian W. Goodfellow, Manish Sharma, David F. Yancey, Andrzej Malek, Eric E. Stangland
  • Publication number: 20210245146
    Abstract: Embodiments of the present disclosure are directed to methods of producing a hydrogen- selective oxygen carrier material comprising combining one or more core material precursors and one or more shell material precursors to from a precursor mixture and heat-treating the precursor mixture at a treatment temperature to form the hydrogen-selective oxygen carrier material. The treatment temperature is greater than or equal to 100° C. less than the melting point of a shell material, and the hydrogen- selective oxygen carrier material comprises a core comprising a core material and a shell comprising the shell material. The shell material may be in direct contact with at least a majority of an outer surface of the core material.
    Type: Application
    Filed: August 27, 2019
    Publication date: August 12, 2021
    Applicant: Dow Global Technologies LLC
    Inventors: Manish Sharma, Brian W. Goodfellow, David F. Yancey, Andrzej Malek, Eric E. Stangland