Patents by Inventor Zezhou Chen

Zezhou Chen 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).

  • Pyrolysis tar conversion
    Patent number: 10072218
    Abstract: A process is provided for determining the suitability of pyrolysis tar, such as steam cracker tar, for upgrading using hydroprocessing without long term fouling of the hydroprocessing reactor. The process includes heating a sample of the tar, quenching the sample, and measuring the total free radical content of the quenched sample. A pyrolysis tar can be blended with one having a lesser total free radical content to produce a blend that can be hydroprocessed with decreased fouling.
    Type: Grant
    Filed: December 1, 2017
    Date of Patent: September 11, 2018
    Assignee: Exxon Mobil Chemical Patents Inc.
    Inventors: Zezhou Chen, Zhenyu Liu, Qingya Liu, Lei Shi, Teng Xu
  • Pyrolysis Tar Conversion
    Publication number: 20180171239
    Abstract: A process is provided for determining the suitability of pyrolysis tar, such as steam cracker tar, for upgrading using hydroprocessing without long term fouling of the hydroprocessing reactor. The process includes heating a sample of the tar, quenching the sample, and measuring the total free radical content of the quenched sample. A pyrolysis tar can be blended with one having a lesser total free radical content to produce a blend that can be hydroprocessed with decreased fouling.
    Type: Application
    Filed: December 1, 2017
    Publication date: June 21, 2018
    Inventors: Zezhou Chen, Zhenyu Liu, Qingya Liu, Lei Shi, Teng Xu