Stripping and method and apparatus

Details Stripping and method and apparatus Stripping and method and apparatus

B - Operations, Transporting

01

D

B01D 53/14 (2006.01) B01D 53/34 (2006.01) C01B 17/60 (2006.01)

Patent

CA 2100768

33 ABSTRACT OF THE DISCLOSURE Solute gas-rich absorbing media formed in scrubbing a solute gas from an off-gas stream prior to discharge of the same are regenerated to solute-lean absorbing medium for recycle to the scrubbing operation. Hot rich absorbing media is formed into one or more spray patterns of very small liquid droplets in a flowing purge steam stream in an elongate conduit into which the solute gas is desorbed from the droplets. The droplets are coalesced to form a regenerated absorption medium, the solute gas-containing gas stream is cooled to condense out the steam and a pure solute gas stream is recovered. The operation may be effected in multiple stripping stages, which may comprise countercurrent flow of solute gas laden absorbing medium and purge steam within a single conduit or in multiple conduits. Multiple stripping steps may be effected within a single stripping stage.

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