Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1987-03-13
1987-11-24
Hart, Charles
Gas separation
Means within gas stream for conducting concentrate to collector
55 48, 55 68, 55 89, 55189, 55222, 55229, B01D 5314
Patent
active
047087218
ABSTRACT:
Materials, such as pollutants, solvents and the like, in a fluid stream, such as a gaseous stream or liquid stream, are removed by contacting the fluid stream with a liquid selective solvent or absorbent for the material or pollutant to be removed. In the case where the fluid stream being treated with the liquid selective solvent is a liquid stream, the liquid selective solvent employed is substantially immiscible with respect to the liquid stream being treated. After contact with the fluid stream being treated the liquid selective solvent, now having the material or pollutant to be removed dissolved therein, is removed from and heated, preferably under a reduced pressure relative to the initial contact of the liquid selective solvent with the fluid stream, gaseous or liquid, to release the material or pollutant therefrom, the material or pollutant then being separately recovered. The resulting liquid solvent, now having a reduced pollutant content, is cooled, preferably by indirect heat exchange contact, with the liquid selective solvent removed after contact with the pollutant-containing fluid stream, and is then returned to contact an additional pollutant-containing fluid stream, a pollutant-containing gaseous stream or a pollutant-containing liquid stream.
REFERENCES:
patent: 3837143 (1974-09-01), Sutherland et al.
patent: 3877893 (1975-04-01), Sweny et al.
patent: 4227891 (1980-10-01), Maguire et al.
patent: 4288234 (1981-09-01), Cox
patent: 4460383 (1984-07-01), Valerius
patent: 4494967 (1985-01-01), Barth
General Signal Corporation
Hart Charles
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