A method and apparatus for recovering a solvent

Details A method and apparatus for recovering a solvent A method and apparatus for recovering a solvent

B - Operations, Transporting

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D

B01D 11/02 (2006.01) A23L 1/221 (2006.01) B01D 15/00 (2006.01) B01J 20/20 (2006.01) C11B 9/02 (2006.01)

Patent

CA 2383899

In a closed-loop biomass extraction apparatus (10), strategies for purifying HFC solvents used therein include: (i) contacting an adsorbent and a desiccant, e.g. in a container (26) with contaminated HFC solvent branched from the main flow loop; and, optionally; (ii) washing contaminated HFC solvent with water, e.g. in a vessel (34) to separate a co-solvent or entrainer, such as ethanol, therefrom.

Les solvants HFC utilisés dans un dispositif (10) d'extraction de biomasse sont extraits au moyen des opérations suivantes : (i) on met en contact un absorbant et un dessiccatif avec du solvant HFC contaminé dérivé du circuit d'écoulement principal, p. ex. dans un récipient (26), et (facultatif) (ii) on lave le solvant avec de l'eau, p. ex. dans une cuve (34), afin de séparer un co-solvant ou un composant d'entraînement tel que l'éthanol du solvant.

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