Suspension deaerating process and apparatus

Details Suspension deaerating process and apparatus Suspension deaerating process and apparatus

B - Operations, Transporting

01

D

B01D 19/00 (2006.01) B01D 1/00 (2006.01) B01D 5/00 (2006.01) D21D 5/26 (2006.01)

Patent

CA 2042345

ABSTRACT OF THE DISCLOSURE A method and apparatus for deaerating a suspension of solids in a liquid such as, for instance, papermaking stock. The suspension is flashed in a vacuum tank connected to a condenser. The vapor released when the suspension is flash cooled in the tank is condensed into an absorption liquid having a higher temperature but a lower vapor pressure than that of the released vapor on a heat exchange surface of the condenser. The flash cooled suspension is used as the cooling medium in the condenser. The diluted absorption liquid is regenerated in an evaporator and recirculated to the condenser. The vapor released in the evaporator can be condensed to heat the suspension further or for other suitable heating purposes.

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