Brine monitor

Details Brine monitor Brine monitor

1989-07-27

1990-08-14

Cohan, Alan

Fluid handling

Processes

With control of flow by a condition or characteristic of a...

137 93, 252328, B01D 1704

Patent

active

049478850

ABSTRACT:
In the desalter operation of a petroleum refinery, a method which measures and regulates the stability of the oil-in-water emulsion. A device located downstream of the desalter monitors the electrical charge of oil droplets in the effluent brine. This charge reflects emulsion stability. The amount of charge streaming past a point defines a current. When a predetermined streaming current threshold is crossed, the monitoring device electrically sends a signal proportional to the excess to a metering pump or valve which adds a predetermined proportional quantity of emulsion breaker to the petroleum/water mixture in the desalter.

REFERENCES:
patent: 3220930 (1965-11-01), Thompson
patent: 3256902 (1966-06-01), Porter
patent: 3410292 (1968-11-01), Bennett et al.
patent: 3592212 (1971-07-01), Schleimer et al.
patent: 3899688 (1975-08-01), Perieres
patent: 4128833 (1978-12-01), Tsavaris
patent: 4273146 (1981-06-01), Johnson
patent: 4323092 (1982-04-01), Zabel

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