Patents by Inventor Anna ZAITSEVA

Anna ZAITSEVA 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).

  • Production of hydrocarbons from recycled or renewable organic material
    Patent number: 12637622
    Abstract: A method is disclosed of producing hydrocarbons from a recycled or renewable organic material wherein the recycled or renewable organic material contains hydroxyaromatic hydrocarbon compounds. Exemplary methods include (a) providing recycled or renewable organic material; (b) optionally purifying the recycled or renewable organic material; (c) hydrotreating the recycled or renewable organic material in a presence of a hydrotreating catalyst, thereby forming a hydrocarbon stream and a phenol-containing effluent; (d) separating phenols from the phenol-containing effluent of step (c), thereby forming a phenol stream and a purified water stream; and (e) recycling the phenol stream obtained in step (d) to step (c) to increase the yield of hydrocarbons obtained from step (c); to obtain hydrocarbons containing less than 1 wt % oxygen.
    Type: Grant
    Filed: July 19, 2019
    Date of Patent: May 26, 2026
    Assignee: NESTE OYJ
    Inventors: Jouni Touronen, Kaisa Lamminpää, Antti Pasanen, Susanna Kuitunen, Anna Zaitseva
  • PRODUCTION OF HYDROCARBONS FROM RECYCLED OR RENEWABLE ORGANIC MATERIAL
    Publication number: 20210269722
    Abstract: A method is disclosed of producing hydrocarbons from a recycled or renewable organic material wherein the recycled or renewable organic material contains hydroxyaromatic hydrocarbon compounds. Exemplary methods include (a) providing recycled or renewable organic material; (b) optionally purifying the recycled or renewable organic material; (c) hydrotreating the recycled or renewable organic material in a presence of a hydrotreating catalyst, thereby forming a hydrocarbon stream and a phenol-containing effluent; (d) separating phenols from the phenol-containing effluent of step (c), thereby forming a phenol stream and a purified water stream; and (e) recycling the phenol stream obtained in step (d) to step (c) to increase the yield of hydrocarbons obtained from step (c); to obtain hydrocarbons containing less than 1 wt % oxygen.
    Type: Application
    Filed: July 19, 2019
    Publication date: September 2, 2021
    Applicant: NESTE OYJ
    Inventors: Jouni TOURONEN, Kaisa LAMMINPÄÄ, Antti PASANEN, Susanna KUITUNEN, Anna ZAITSEVA