Desalting process

Details Desalting process Desalting process

1986-08-06

1988-02-02

Garvin, Sr., Patrick P.

Mineral oils: processes and products

Refining

Water removal

208187, 208189, 208262, 208177, 210712, 210708, C10G 3304, C10G 3300

Patent

active

047227818

ABSTRACT:
In the desalting of crude oil, water-insoluble solids such as rust, iron sulfide, silt, clay, drilling mud components, etc., contained in the crude accumulate in an interfacial emulsion layer or cuff between the desalted crude and water phases. The major portion of this cuff is recycled to the crude feed and the remainder is mixed with a light diluent oil to break the emulsion and then settled to separate the crude and the water. The water-insoluble solids separate with the water. The separated oil phase may be combined with the desalted crude.

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patent: 4444654 (1984-04-01), Cargle et al.
patent: 4551239 (1985-11-01), Merchant et al.
patent: 4582593 (1986-04-01), Bialek

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