Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent
1993-11-24
1995-10-24
Cintins, Ivars
Liquid purification or separation
Processes
Ion exchange or selective sorption
2101981, 210924, C02F 128
Patent
active
054607264
ABSTRACT:
An oil holding tank has an open upper end and a vertical container containing pillows when immersed in oil will rapidly adsorb oil and exhibit a composite density denser than oil and less dense than water. A horizontal member is disposed between the lower open end of the container and the upper end of the tank and having open and closed positions. The member is opened when the tank is ruptured to permit the pillows to be discharged by gravity into the tank. A first mechanism is placed in active position to apply a downward force to the uppermost layer of pillows in the container when the member is open to augment the force of gravity and is placed in inactive position and applies no downward augmenting force when the member is closed. The top level of oil in the tank prior to rupture is subjected to a combined pressure of air, vapors and inert gas which exceeds that of ambient air. An additional mechanism reducing the combined pressure after rupture to a value approximately equal to ambient air.
REFERENCES:
patent: 4371101 (1983-02-01), Cane et al.
patent: 4981097 (1991-01-01), Beyrouty
patent: 5248436 (1993-09-01), Kovaletz
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