Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1981-01-27
1983-02-08
Adee, John
Gas separation
Means within gas stream for conducting concentrate to collector
55160, 55172, 210117, 210120, B01D 1900
Patent
active
043727573
ABSTRACT:
A deck drainage system for removing oil containing fluid from an offshore facility includes a plurality of drains communicating with a liquid seal strainer for preventing a back flow of gas through the drain assembly. The liquid seal strainer is provided at each deck of the offshore facility with a vent provided downstream of the liquid seal strainers but upstream of a further treatment of the collected rain water and oil containing fluid. Preferably, the collected fluid is passed through a skim pile where oil is separated from the water and recovered. The clean water is then passed directly into the body of water beneath or adjacent the offshore platform. The vent located downstream of the liquid seal strainers but upstream of the skim pile preferably is provided with a flame arrestor for preventing a flash back of an inadvertent flame to the liquid seal strainer. Preferably, each of the drains is also provided with a seal arrangment so as to provide an additional protection against the flow of harmful gases back through the drainage system to the various decks.
REFERENCES:
patent: 870027 (1907-11-01), Gross
patent: 1457637 (1923-06-01), Sievers
patent: 1498069 (1924-06-01), Beatsch
patent: 3893918 (1975-07-01), Favret, Jr.
patent: 4014791 (1977-03-01), Tuttle
patent: 4198300 (1980-04-01), Williams
General Process Piping Schematics, A Sketch by Engineering Specialties, Inc., Covington, La., 1 p. Admitted Prior Art.
Offshore Pollution Control Applications (Deck Drains, Produced Water, Sand Disposal).
Induced Air Flotation--High Performance Separators.
Monarch Separators, Inc.
How to Size Offshore Waste Water Separators, World Oil, 1968.
Revised Outer Continental Shelf Orders Governing Oil and Gas Base Operations.
OCS Order No. 7 Pollution and Waste Disposal.
Oil & Gas Journal, Separator Hydraulics-Tracer-Response Studies Can Pinpoint Separator Problems, 1977.
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