[12] Patent
[11] Patent No.:GC0009739  
[45] Date of Publishing the Grant of the Patent: 28/Feb /2019                58/2019  
Number of the Decision to Grant the Patent:2019/145165
Date of the Decision to Grant the Patent:12/Feb/2019

[21] Application No.:GC 2016-31439

[22] Filing Date:6/6/2016

[30] Priority:

[33] State [32] Priority date [31] Priority No.
JP
12/6/2015
2015-118872

[72] Inventors:1- Shuichi KOBAYASHIŲŒ2- Taku MORIYAMA

[73] Owner: Cosmo Oil Co., Ltd., 1-1,Shibaura 1-chome, Minato-ku, 1058528, Tokyo, Japan

[74] Agent: Saba & Co. T.M.P

  

 

  

[51]IPC:
Int. Cl.: C02F 11/00, 11/12; C10G 1/00, 31/10 (2006.01)

[56] Cited Documents:

-JP 2012-229403 A (System Kikou Co., Ltd.) 22 November 2012
-JP 2005-349240 A (Cosmo Oil Co., Ltd.) 22 December 2005
-JP 2002-338969 A (SK Corp.) 27 November 2002
 
Examiner: Eng. Sattam M.AlMutairi

[54] METHOD FOR RECOVERING OIL IN CRUDE OIL SLUDGE, AND CRUDE OIL
[57] Abstract: There is provided a method for recovering oil in a crude oil sludge, wherein even if the oil recovered from the crude oil sludge is mixed into a crude oil, a sludge is unlikely to be generated again. The method for recovering oil in a crude oil sludge comprises: a first step (1) of mixing a crude oil sludge (A) with a crude oil (B), and then heating and stirring the mixture of the crude oil sludge (A) with the crude oil (B) at 40 to 200?C to thereby obtain a heated and stirred material of the crude oil sludge (A) and the crude oil (B); a second step (1) of centrifugally separating the heated and stirred material at 40 to 200?C into a light liquid and a heavy fraction to thereby obtain the light liquid; and a third step (1) of bringing the temperature of the light liquid to a temperature equal to or higher than the melting point thereof, and mixing the light liquid having the temperature equal to or higher than the melting point into a crude oil (C) in a crude oil transfer pipe, wherein the temperature of the crude oil (C) is equal to or higher than the temperature of the light liquid, or the temperature of the crude oil (C) is lower than the temperature of the light liquid and the difference between the temperature of the light liquid and the temperature of the crude oil (C) is 40?C or lower.
No. of claims: 5     No. of figures: 1


 

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