Demulsifier control system and method

Details Demulsifier control system and method Demulsifier control system and method

1989-11-08

1990-12-18

Cohan, Alan

Fluid handling

Processes

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

137 91, G01N 3326, B01D 1705

Patent

active

049779150

ABSTRACT:
The present invention controls the addition of a demulsifier through a petroleum stream by causing the petroleum stream to have a density gradient relating to its water content. The petroleum stream is sampled at two different locations along the density gradient to provide two sample streams. The watercut of each sample stream is determined and at least one single correspondent to the determination has provided. The demulsifier from a source is controlled in accordance with the watercut determinations and provided to the petroleum stream prior to the creation of the density gradient.

REFERENCES:
patent: 4200550 (1980-04-01), Scherrer
patent: 4266188 (1981-05-01), Thompson
patent: 4401575 (1983-08-01), Stewart
patent: 4548226 (1985-10-01), Iino
patent: 4660414 (1987-04-01), Hatton
patent: 4776210 (1988-10-01), Baillie
patent: 4873648 (1989-10-01), Mouser

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