Mass transfer in a rotating packed bed with various radii of the bed

This work examined the mass transfer efficiency of a rotating packed bed with various radii of the packed bed. Experimental results showed that k _La ncreased with decreasing volume of the packed bed. This may contribute to the significant end effects as the volume of the packed bed is reduced. A correlation which takes end effects into consideration for k _La in a rotating packed bed was proposed and is valid for different sizes of the rotating packed bed and for viscous Newtonian and non-Newtonian liquid systems. In addition, it was also found that the correlation could reasonably estimate most of the k_Lα data in the Higee literature.