Patents by Inventor Jiahan Xie

Jiahan Xie 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).

  • Methods and systems for co-feeding waste plastics into a refinery
    Patent number: 11939532
    Abstract: The present application provides a method and a system for recycling a polymer. The method includes introducing polymer into a primary melting extruder, producing a polymer melt that is combined with a fluid oil to at least partially dissolve the polymer melt. A secondary mixing extruder mixes these to form a polymer solution that is introduced into a refinery oil stream, producing a polymer-comprising oil stream, which is fed into a refinery process unit. The system includes a primary melting extruder for forming a polymer melt from polymer. A secondary mixing extruder receives the polymer melt. One or more hydrocarbon inflow conduits for providing a fluid oil to the primary melting extruder and/or the secondary mixing extruder are configured to form a polymer solution from the fluid oil and the polymer melt. There is a feed system outlet for feeding the polymer solution to a refinery oil stream.
    Type: Grant
    Filed: January 25, 2023
    Date of Patent: March 26, 2024
    Assignee: Braskem S.A.
    Inventors: Robson Pablo Sobradiel Peguin, Steven Michael Krupinski, Kevin Richard Soucy, Jiahan Xie, Cid Miró Neto, Roberto Osorio Jiménez
  • METHODS AND SYSTEMS FOR CO-FEEDING WASTE PLASTICS INTO A REFINERY
    Publication number: 20230235233
    Abstract: The present application provides a method and a system for recycling a polymer. The method includes introducing polymer into a primary melting extruder, producing a polymer melt that is combined with a fluid oil to at least partially dissolve the polymer melt. A secondary mixing extruder mixes these to form a polymer solution that is introduced into a refinery oil stream, producing a polymer-comprising oil stream, which is fed into a refinery process unit. The system includes a primary melting extruder for forming a polymer melt from polymer. A secondary mixing extruder receives the polymer melt. One or more hydrocarbon inflow conduits for providing a fluid oil to the primary melting extruder and/or the secondary mixing extruder are configured to form a polymer solution from the fluid oil and the polymer melt. There is a feed system outlet for feeding the polymer solution to a refinery oil stream.
    Type: Application
    Filed: January 25, 2023
    Publication date: July 27, 2023
    Applicant: Braskem S.A.
    Inventors: Robson Pablo Sobradiel Peguin, Steven Michael Krupinski, Kevin Richard Soucy, Jiahan Xie, Cid Miró Neto, Roberto Osorio Jiménez
  • HETEROGENEOUS CATALYST FOR HIGHLY-REACTIVE POLYISOBUTYLENE
    Publication number: 20230167208
    Abstract: A heterogeneous catalyst composition for preparing a highly-reactive polyisobutylene from isobutylene may include a Lewis acid, a support, an initiator, and optionally an electron donor. A method of polymerizing isobutylene to a highly-reactive polyisobutylene may include a heterogeneous catalyst composition including include a Lewis acid, a support, an initiator, and optionally an electron donor.
    Type: Application
    Filed: November 28, 2022
    Publication date: June 1, 2023
    Applicant: Braskem S.A.
    Inventors: Jiahan Xie, Márcia Silva Lacerda Miranda, Cassandra Gallaschun, Marcio Andrade, Danniel Panza, Marcio Reboucas, Richard Caulkins, Alicia Brasselle, Jan Kalfus