Mass transfer in a multiphase vibration column, 2: interfacial area
2001
Bankovic-Ilic, I.B. (Faculty of Technology, Leskovac (Yugoslavia)) | Veljkovic, V.B. | Lazic, M.L. | Skala, D.U.
The results of the analysis of the mass transfer characteristics of a reciprocating plate column (RPC) of the Karr type (2.54 and 9.2 cm internal diameter) in the cases of a two-phase (gas-liquid) and three-phase system (gas-liquid-solid) are presented. The specific gas-liquid interfacial area (a) was determined at different operating conditions by applying the chemical method of sodium sulfite oxidation. The obtained results showed that the specific interfacial area depended on the vibration intensity, the superficial gas velocity and physical characteristics of the liquid phase, as well as on the solid content in the RPC in the case of the three-phase system. An empirical correlation was derived indicating that the specific interfacial area did not depend on the column diameter and that it might be applied for two- and three-phase systems in a RPC: a = 18883 (Psub(av)) sup(0.31) Usub(g) sup(0.97).
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