Patents by Inventor Gerui Cui

Gerui Cui 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).

  • Separation method of high-temperature Fischer-Tropsch synthetic light oil
    Patent number: 12486463
    Abstract: The application provides a method for simultaneously removing oxygen-containing compounds and aromatics from high-temperature Fischer-Tropsch synthetic light oil, comprising: subjecting the light oil and a composite extractant to a countercurrent single-stage or multi-stage extraction process in an extraction equipment, to obtain a raffinate phase stream, and an extract phase stream of oxygen-containing compounds+aromatics; washing the raffinate phase stream with water, to obtain a raffinate oil stream, from which oxygen-containing compounds and aromatics have been removed, and a water stream containing a small amount of extractants; and subjecting the extract phase stream to an extractive distillation process, to obtain a recycled stream rich in alkanes and olefins and a recycled solvent-rich stream, and carrying out a regeneration cycle on the solvent-rich stream through a solvent recovery tower and a regeneration distillation tower.
    Type: Grant
    Filed: November 28, 2022
    Date of Patent: December 2, 2025
    Assignee: Yankuang Energy R&D Co., Ltd.
    Inventors: Qiwen Sun, Zhengwei Yang, Jisen Liu, Gerui Cui, Chen Shen, Wei Jin, Zongsen Zhang
  • SEPARATION METHOD OF HIGH-TEMPERATURE FISCHER-TROPSCH SYNTHETIC LIGHT OIL
    Publication number: 20250101321
    Abstract: The application provides a method for simultaneously removing oxygen-containing compounds and aromatics from high-temperature Fischer-Tropsch synthetic light oil, comprising: subjecting the light oil and a composite extractant to a countercurrent single-stage or multi-stage extraction process in an extraction equipment, to obtain a raffinate phase stream, and an extract phase stream of oxygen-containing compounds+aromatics; washing the raffinate phase stream with water, to obtain a raffinate oil stream, from which oxygen-containing compounds and aromatics have been removed, and a water stream containing a small amount of extractants; and subjecting the extract phase stream to an extractive distillation process, to obtain a recycled stream rich in alkanes and olefins and a recycled solvent-rich stream, and carrying out a regeneration cycle on the solvent-rich stream through a solvent recovery tower and a regeneration distillation tower.
    Type: Application
    Filed: November 28, 2022
    Publication date: March 27, 2025
    Applicant: Yankuang Energy R&D Co., Ltd.
    Inventors: Qiwen Sun, Zhengwei Yang, Jisen Liu, Gerui Cui, Chen Shen, Wei Jin, Zongsen Zhang