Method and apparatus for recovering oil from the surface of a bo

Details Method and apparatus for recovering oil from the surface of a bo Method and apparatus for recovering oil from the surface of a bo

1992-05-14

1993-09-21

Upton, Christopher

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210752, 210799, 210199, 210202, 210259, 210538, 210923, 210DIG5, C02F 140, E02B 1504

Patent

active

052465926

ABSTRACT:
An apparatus for recovering oil from an oil spill on the surface of a body of water includes a skimmer unit for recovering an oil-water mixture from the surface of the body of water, a three stage coalescer unit for separating the oil in the oil-water mixture from the water therein and a solvent injection assembly for injecting solvent into the coalescer unit after the first and second stages in order to reduce the viscosity of the oil entering the second and third stages. The first, second, and third stages of the coalescer unit comprise interceptors having a surface area ratios between 27 and 65 ft.sup.2 /ft.sup.3 ; 65 ft.sup.2 /ft.sup.3 and 2500 ft.sup.2 /ft.sup.3 ; and 500 ft.sup.2 /ft.sup.3 and 4200 ft.sup.2 /ft.sup.3, respectively.

REFERENCES:
patent: 3738492 (1973-06-01), Trillich
patent: 3948767 (1976-04-01), Chapman
patent: 4400280 (1983-08-01), Larsson et al.
patent: 4512901 (1985-04-01), Kozar
patent: 4597874 (1986-07-01), Francis, Jr.
patent: 4650581 (1987-03-01), Angles et al.
patent: 4824555 (1989-04-01), Paspek et al.
patent: 5023002 (1991-06-01), Schweizer et al.

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