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1. (WO2017155183) METHOD FOR WASHING CRUDE OIL TANK WITH WATER AND SYSTEM THEREFOR

Pub. No.:    WO/2017/155183    International Application No.:    PCT/KR2016/013666
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Fri Nov 25 00:59:59 CET 2016
IPC: B08B 9/08
B08B 7/00
Applicants: SEOHAE PETROLEUM
서해석유
Inventors: SON, Sung Geun
손성근
Title: METHOD FOR WASHING CRUDE OIL TANK WITH WATER AND SYSTEM THEREFOR
Abstract:
The present invention relates to a method for washing a crude oil tank with water and a system therefor. The method for washing a crude oil tank with water comprises: a wash water injection step for injecting high-temperature wash water into a crude oil tank; a gas discharge step for discharging, to the outside, gas generated in the crude oil tank; a high pressure water discharge step for discharging high-temperature and high-pressure water into the crude oil tank so as to mix crude oil inside the crude oil tank with the wash water; a crude oil discharge step for discharging, to the outside, crude oil floating on the mixed water in which the crude oil is mixed; a step for heating, to a predetermined temperature, wash water obtained using the mixed water from which the floating crude oil has been discharged, and then injecting the same into the crude oil tank; and a step for injecting rotation water into the crude oil tank depending on whether the concentration of crude oil contained in the wash water obtained using the mixed water is a predetermined value or less.