Title:
重質原油精製時に生じる界面ラグの処理
Document Type and Number:
Japanese Patent JP2012525469
Kind Code:
A
Abstract:
A method for treating an interface rag includes the steps of removing a volume of rag at a controlled rate from an upstream rag source and passing the rag through a high pressure pump and a heater. The heater heats the rag to a temperature of at least 350° F. to thermally decomposing any chemicals that had been added to the interface rag to promote separation. Diluent is then mixed with the heated rag to cool the rag to a temperature less than 300° F. and produce a 30 API rag. The cooled diluted rag is then treated in an electrostatic treater or sent directly to a hydrocyclone cluster. The electrostatic treater is preferably a vertical electrostatic treater with a conical-shaped lower portion and a means for agitating the solid-laden water within the treater to prevent the solids from settling on the bottom of the treater.
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Inventors:
Sams, Gary W.
Application Number:
JP2012508521A
Publication Date:
October 22, 2012
Filing Date:
April 15, 2010
Export Citation:
Assignee:
National Tank Company
International Classes:
C10G1/00; C10G21/14; C10G33/02; C10G53/04
Domestic Patent References:
| JPS55160085A | 1980-12-12 |
Foreign References:
| US20050193923A1 | 2005-09-08 | |||
| US4407706A | 1983-10-04 | |||
| US5368747A | 1994-11-29 | |||
| US4988427A | 1991-01-29 | |||
| US5219471A | 1993-06-15 | |||
| US20060070912A1 | 2006-04-06 | |||
| US20040167233A1 | 2004-08-26 | |||
| US6189613B1 | 2001-02-20 | |||
| US5882506A | 1999-03-16 |
Attorney, Agent or Firm:
Hiroe Associates Patent Office
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