Equipment for enhanced mass transfer and control of foaming in c

Details Equipment for enhanced mass transfer and control of foaming in c Equipment for enhanced mass transfer and control of foaming in c

1985-02-15

1987-04-14

Wyse, Tom

Liquid purification or separation

With means to add treating material

Directly applied to separator

261 89, B01D 0000

Patent

active

046576770

ABSTRACT:
A device based on rotating surfaces for promoting highly efficient molecular diffusive transfer between gases and liquids is described. Said transfer is achieved by generating a thin film of liquid which flows on a rotating surface, thereby exposing a large area of flowing liquid to the gaseous phase. This device is especially useful in promoting efficient molecular transfer of gases with low solubility in the liquid, e.g., oxygen into an aqueous phase in conventional aerobic fermentation vessels. The principle of this system can be employed in the reverse direction of transfer, for gases leaving the liquid phase, such as occurs in stripping, defoaming and deodorization. Of special value is the prevention of foaming, a common problem in the operation of conventional fermentation processes which occurs as the molecular transfer takes place.

REFERENCES:
patent: 3779531 (1973-12-01), White et al.
patent: 3827679 (1974-08-01), Kaelin
patent: 3965009 (1976-06-01), Kaelin
patent: 3980740 (1976-09-01), Bos
patent: 4117047 (1978-09-01), Hannecart
patent: 4153500 (1979-05-01), Feres
patent: 4167454 (1979-09-01), Feres
patent: 4193949 (1980-03-01), Naito
patent: 4339398 (1982-07-01), Feres

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