B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
165/3, 23/361
B01D 53/14 (2006.01) C02F 1/26 (2006.01)
Patent
CA 1258566
SOLVENT ABSORPTION AND RECOVERY SYSTEM ABSTRACT OF THE DISCLOSURE 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, preferaby 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.
495688
Borden Ladner Gervais Llp
Sandoz Ltd.
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