Liquid purification or separation – Processes – Chemical treatment
Patent
1992-12-11
1994-01-04
Silverman, Stanley S.
Liquid purification or separation
Processes
Chemical treatment
210151, 210192, 2101951, 210202, 210604, C02F 178
Patent
active
052757420
ABSTRACT:
Oxygen is separated from air by pressure swing adsorption in plant 2. The oxygen is passed through an ozone generator 4. The resulting ozonated oxygen is passed upwardly through a contactor 6 countercurrently to the flow of a side stream of water to be treated with ozone. The side stream containing dissolved ozone flows from the contactor 6 to a mixer 8 in which it is mixed with a main stream of water. The effluent gas from the contactor 6 contains air displaced from the water and undissolved oxygen. It is divided into two parts. One part flows to the pressure swing adsorption plant 2 and is separated therein with the air. The other part is dried by temperature swing adsorption in drier 20 and the resulting dried gas is ozonated in the ozone generator 4 with the oxygen from the plant 2.
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Ibbetson Craig C.
LaCava Alberto
Satchell, Jr. Donald P.
Cassett Larry R.
Nessler Cynthia L.
Reap Coleman R.
Silverman Stanley S.
The BOC Group plc
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