Patents by Inventor Dae-Seog Yoon

Dae-Seog Yoon 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).

  • Method for removing sludge in crude oil tank and recovering oil therefrom
    Patent number: 6673231
    Abstract: Disclosed is a method for removing sludge in a crude oil storage tank by use of thermal oil discharged from a distillation tower of an oil refinery, such as atmospheric residue, vacuum residue, or vacuum gas oil, and recovering oil having various applications by separating inorganics therefrom. The method is advantageous in terms of minimizing air pollution because of utilizing a closed system, drastically reduced washing time of crude oil storage tank, and continuous removal of the sludge. Additionally, the recovered oil can be provided as fuel oil, marine oil or a feed for secondary treatment processes, such as up-grading processes of heavy oil.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: January 6, 2004
    Assignee: SK Corporation
    Inventors: Myung-Jun Kim, Dae-Seog Yoon, Chang-Hyo Choi, June-Tae Choi, Jong-Won Kwak, Sung-Kil Park
  • Method for removing sludge in crude oil tank and recovering oil therefrom
    Publication number: 20020153279
    Abstract: Disclosed is a method for removing sludge in a crude oil storage tank by use of thermal oil discharged from a distillation tower of an oil refinery, such as atmospheric residue, vacuum residue, or vacuum gas oil, and recovering oil having various applications by separating inorganics therefrom. The method is advantageous in terms of minimizing air pollution because of utilizing a closed system, drastically reduced washing time of crude oil storage tank, and continuous removal of the sludge. Additionally, the recovered oil can be provided as fuel oil, marine oil or a feed for secondary treatment processes, such as up-grading processes of heavy oil.
    Type: Application
    Filed: September 24, 2001
    Publication date: October 24, 2002
    Inventors: Myung-Jun Kim, Dae-Seog Yoon, Chang-Hyo Choi, June-Tae Choi, Jong-Won Kwak, Sung-Kil Park