Liquid purification or separation – Gravitational separator – Superposed compartments or baffles – e.g. – parallel plate type
Patent
1987-06-11
1988-05-31
Sever, Frank
Liquid purification or separation
Gravitational separator
Superposed compartments or baffles, e.g., parallel plate type
210539, 210540, B01D 2102
Patent
active
047479477
ABSTRACT:
An apparatus for separating liquids having different densities, such as a hydrocarbon layer floating on a liquid surface in vertically surging body of liquid. A surge vessel receives the fluid to be separated, via an inlet located at or near the bottom of the vessel. The vessel is provided with a collection means positioned above the liquid inlet and maximum liquid level such as a baffle contained within the vessel for collecting the lighter fluid phase. Changes in the vertical displacement of the liquid body within the surge vessel provide the driving force for the collection means to operate. For vessels having less frequent level changes, the collection device may also include a container, such as a box, positioned below the baffle. As the liquid level in the surge vessel rises, some of the lighter fluid phase will be trapped under the baffle. The lighter fluid phase is then pushed to a collection device located outside the surge vessel, such as a tank, along with the heavier phase by the rising body of fluid within the surge vessel. Since the apparatus does not contain moving parts, frequent maintenance is not required.
REFERENCES:
patent: 3752318 (1973-08-01), Deroven et al.
patent: 3862040 (1975-01-01), Preus et al.
patent: 4247312 (1981-01-01), Thakur et al.
patent: 4396508 (1983-08-01), Broughton
patent: 4564449 (1986-01-01), Kampers
Sever Frank
Shell Oil Company
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