B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
165/1
B01D 19/00 (2006.01) B01D 53/14 (2006.01) B01D 53/22 (2006.01)
Patent
CA 1218926
ENERGY-EFFICIENT PROCESS FOR THE STRIPPING OF GASES FROM LIQUIDS Abstract of the Disclosure A process is disclosed for the recovery and reuse of the heat contained in the gas/vapor overhead mix- ture from a stripping column in which a noncondensable gas is stripped from a liquid solution by contacting the solu- tion 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 con- densed 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 compressed vapor is con- densed in the column reboiler, its latent heat of vapori- zation is thereby recovered and used to generate the required stripping vapor by boiling the solution being stripped.
448947
Bend Research Inc.
Oyen Wiggs Green & Mutala Llp
LandOfFree
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