Mass transfer in laminar region between liquid and packing material surface in the packed bed

TLDR: In this article, the hydraulic radius model was applied to laminar flow in a packed bed and assuming that mass transfer in the packed bed is analogous to that between a pipe surface and a stream of liquid with steady velocity profile, liquid-phase mass transfer from the packed solid sphere was analyzed and an approximate solution was proposed.

Abstract: Applying the hydraulic radius model to laminar flow in a packed bed and assuming that mass transfer in the packed bed is analogous to that between a pipe surface and a stream of liquid with steady laminar velocity profile, liquid-phase mass transfer from the packed solid sphere was analyzed and an approximate solution is proposed. Further liquidfilm mass transfer coefficients were measured for benzoic acid-water system. From these results, together with previous data, it was found that the proposed equation agrees with data in Re'^10, both this equation and Carberrys equation can be applied for ]0<CRef <1OO, and Carberry's equation fits in Re'>100.