Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1983-03-07
1984-04-24
Spitzer, Robert H.
Gas separation
Means within gas stream for conducting concentrate to collector
55 49, 55 51, 55 54, 55 73, B01D 5322
Patent
active
044445717
ABSTRACT:
A process is disclosed for the recovery and reuse of the heat contained in the gas/vapor overhead mixture from a stripping column in which a noncondensable gas is stripped from a liquid solution by contacting the solution with a hot vapor such as steam. The steam or other vapor in the overhead mixture is separated from the non-condensable gas or gases by preferentially passing the vapor through a semipermeable membrane. The water or other condensable vapor is then compressed and either reinjected at the bottom of the stripping column or condensed in the column reboiler, thus permitting its reuse in the stripping process. If the compressed vapor is reinjected into the stripping column, it serves as the stripping medium itself. If the compessed vapor is condensed in the column reboiler, its latent heat of vaporization is thereby recovered and used to generate the required stripping vapor by boiling the solution being stripped.
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Bend Research Inc.
Spitzer Robert H.
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