Enhancement of gas-liquid mass transfer by a dispersed second liquid phae
1986; Elsevier BV; Volume: 41; Issue: 7 Linguagem: Inglês
10.1016/0009-2509(86)87066-x
ISSN1873-4405
AutoresW.J. Bruining, G.E.H. Joosten, A.A.C.M. Beenackers, H. Hofman,
Tópico(s)Minerals Flotation and Separation Techniques
ResumoFrom experiments in a stirred cell contactor with flat gas-liquid interface, it is shown that the rate of mass transfer of oxygen into an aqueous solution can be enhanced by the presence of small amounts (0.5–1 vol%) of a dispersed organic phase (e.g. hexadecane, decane, decanol or cyclohexane), provided that the droplet diameter is in the order of or smaller than the film thickness (D/kL) and the solubility of oxygen in the organic phase is larger than in water. A simple model is proposed that predicts the experimentally observed enhancement factors with reasonable accuracy.
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