The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 6673231 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 06, 2004

Filed:

Sep. 24, 2001
Applicant:
Inventors:

Myung-Jun Kim, Taejon, KR;

Dae-Seog Yoon, Ulsan, KR;

Chang-Hyo Choi, Ulsan, KR;

June-Tae Choi, Taejon, KR;

Jong-Won Kwak, Ulsan, KR;

Sung-Kil Park, Ulsan, KR;

Assignee:

SK Corporation, Seoul, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10G 1/700 ;
U.S. Cl.
CPC ...
C10G 1/700 ;
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.


Find Patent Forward Citations

Kim, Myung-Jun. (2004). Method for removing sludge in crude oil tank and recovering oil therefrom (U.S. Patent No. 6673231). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6673231

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