Page 316 - Packed bed columns for absorption, desorption, rectification and direct heat transfer

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of the mass transfer coefficient. The effect of the turbulizers is enhanced by
increasing the packing block height, i.e. increasing of the thickness of the
diffusion boundary layer and decreasing the distance between the turbulizers
lead to a rise of the liquid phase controlled mass transfer coefficient between 15
and 55%,

- " "?

+207- .,
* 10
— *
6 - s
V
"-2QZ
5?

1.5 2 4 6 8 10 2 4 B 8 10
Fr.

Fig. 74. Comparison of the experimental data for H m of packings with boundary layer turbulizers
and the prediction line computed using Eq. (207} (see Table 31).

d
"3*
+2DZ
s~io°
8
I ..••>MS»1

".Xs.-f§ -20Z

10'

Fig. 75. Comparison of the experimental data for 4ff d for packings with boundary layer
turbulizers and the prediction line computed using Eq. (208) (see Table 31).