Patents by Inventor Shanying Lee

Shanying Lee 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).

  • PROCESS PROVIDING IMPROVED BASE OIL YIELD
    Publication number: 20240327731
    Abstract: A process for preparing a base oil from a waxy hydrocarbon feedstock is provided. The process comprises passing the hydrocarbon feedstock to a distillation column prior to dewaxing in order to recover a heavy wax cut. The heavy wax is then hydrocracked to lower boiling compounds which can be better isomerized to a base oil with an acceptable cloud point. The base oil yield is also increased.
    Type: Application
    Filed: December 24, 2021
    Publication date: October 3, 2024
    Applicant: CHEVRON U.S.A. INC.
    Inventors: Jay Parekh, Jifei JIA, Guan-Dao LEI, Kenny PEINADO, Yihua ZHANG, Shanying LEE
  • Process providing improved base oil yield
    Patent number: 11396631
    Abstract: A process for preparing a base oil from a waxy hydrocarbon feedstock is provided. The process comprises passing the hydrocarbon feedstock to a distillation column prior to dewaxing in order to recover a heavy wax cut. The heavy wax is then hydrocracked to lower boiling compounds which can be better isomerized to a base oil with an acceptable cloud point. The base oil yield is also increased.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: July 26, 2022
    Assignee: Chevron U.S.A. Inc.
    Inventors: Jay Parekh, Jifei Jia, Guan-Dao Lei, Kenny Peinado, Yihua Zhang, Shanying Lee
  • PROCESS PROVIDING IMPROVED BASE OIL YIELD
    Publication number: 20220204875
    Abstract: A process for preparing a base oil from a waxy hydrocarbon feedstock is provided. The process comprises passing the hydrocarbon feedstock to a distillation column prior to dewaxing in order to recover a heavy wax cut. The heavy wax is then hydrocracked to lower boiling compounds which can be better isomerized to a base oil with an acceptable cloud point. The base oil yield is also increased.
    Type: Application
    Filed: December 30, 2020
    Publication date: June 30, 2022
    Applicant: Chevron U.S.A. Inc.
    Inventors: Jay Parekh, Jifei Jia, Guan-Dao Lei, Kenny Peinado, Yihua Zhang, Shanying Lee