Process and apparatus for regenerating adsorbents and...

Details Process and apparatus for regenerating adsorbents and... Process and apparatus for regenerating adsorbents and...

B - Operations, Transporting

01

D

252/18, 182/3

B01D 15/00 (2006.01) B01D 11/02 (2006.01) B01J 20/34 (2006.01) C01B 31/08 (2006.01) C02F 1/28 (2006.01)

Patent

CA 1082672

ABSTRACT OF THE DISCLOSURE An absorbent is removed from an adsorbent by contact- ing the adsorbent with a near critical liquid which is a solvent for the adsorbate. The near critical liquid containing the dis- solved adsorbate is then subjected to at least partial vaporiza- tion to form a vapor in which the adsorbate is substantially less soluble thereby making it possible to remove the adsorbate from the near critical liquid. The vapor is then condensed to restore it to the near critical liquid state wherein it is a solvent for the adsorbate so that it may be reused. The process is particular- ly suitable for adsorbent regeneration in the treating of waste- waters.

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