Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1987-04-20
1989-04-25
Castel, Benoit
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
210712, 210776, 210744, 210104, 210115, 210123, 2102212, C02F 124, C02F 140
Patent
active
048245798
ABSTRACT:
A primary separation vessel is separated into a plurality of chambers having fluid communication therethrough; in each of the chambers there is further included a downwardly depending eductor system having a coaxial bore wherein fluid induces air into the eductor system where the educted air in the fluid being projected downward into the flow of fluid and the bubbles rising along the curved wall of the tank and carrying contaminants through a centrally located collection trough, which through gravity the contaminants collect in the trough and move to a circulation collected in the trough. The contaminants then move via gravity to a separation zone within the vessel, wherein the oil that is collected is allowed to spill over in an oil collection zone for recovery, and the level of the water is monitored to draw off any water collected within the zone. There is further provided means within the vessel for allowing the initial introduction of fluid through the vessel to release a certain quantity of the oil within the initial fluid, so that a portion of the oil entrained in the fluid is removed from the fluid as it enters the vessel. Of the fluid flowing through the vessel as it undergoes cleaning through the gas eduction system, a portion is recycled back through the vessel to be educted into the flow of fluid, a portion is used to create two phase fluid flow, and a portion is recovered exterior to the vessel.
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