Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent
1990-01-11
1991-08-13
Silverman, Stanley S.
Liquid purification or separation
Processes
Ion exchange or selective sorption
210708, 210718, 210776, 210788, 210799, 210DIG5, 55 52, C02F 140, B01D 1704
Patent
active
050394258
ABSTRACT:
A process for separating emulsified, suspended and separate oil as well as other contaminants from the water phase of a compressed air system condensate comprises the steps of discharging air and condensate from a compressed air system into a water filled separation tank where air is separated from the condensate. Some of the contaminants heavier than water are allowed to settle to the bottom of the separation tank while lighter oil contaminants are allowed to float to the surface where they are removed. Water and the remaining contaminants which did not flow to the surface or settle to the bottom of the tank are drained away until a given amount of liquid mass has been accumulated. Pressure applied to the liquid mass forces the mass into and through an underwater coalescing media. Such action causes substantially all of the remaining oil constituents to coalesce and thereby form a floating oil phase while other contaminants are retained by the coalescing media. The floating oil phase is removed and the remaining water is relatively pure.
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Caris John R.
Schwarz Robert M.
Deltech Engineering, L.P.
Silverman Stanley S.
Upton Christopher
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