Method for pretreatment of refinery feed for desalting the feeds

Details Method for pretreatment of refinery feed for desalting the feeds Method for pretreatment of refinery feed for desalting the feeds

1999-03-02

2000-07-11

Myers, Helane

Mineral oils: processes and products

Refining

Metal contaminant removal

210708, 210737, C10G 1700

Patent

active

060867507

ABSTRACT:
This disclosure sets out a metal salt removal procedure for use with a crude oil flow. A small amount of water is injected to form water bubbles surrounded by oil. An ethylene oxide reacted with polypropylene glycol at 350.degree. F. or so yields a water soluble demulsifier added at the rate of a few ppm to the water in oil mix. The added reaction product, a polyol enables metal salt isolation in the water.

REFERENCES:
patent: 5256305 (1993-10-01), Hart
patent: 5271841 (1993-12-01), Hart
patent: 5607574 (1997-03-01), Hart

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