Page 222 - Packed bed columns for absorption, desorption, rectification and direct heat transfer

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profile consisting of two perpendicular lamellas with a common long side, the
vertical one is not wetted. That is why packings with such complicated forms,
as for example IMTP are less wetted.
The comparison between the effective surface of plastic RSR and Ralu-
Flow paekinp with close specific areas, is presented in Fig. 25 (for RSR No
2PP and Ralu-Flow No 2 PP) and Fig. 26 (for RSR No 0.6 and Ralu-Flow No 1
2 3
PP). The specific surface areas for the first two packings are 117.2 m /m for
2
3
RSR and 98.4 m /m for the Ralu-Flow.

300
1 4= -*-
200
IU——
F
..—- -a K—-*
100 • R SR0.7
1
80 • RSR 1.5
• IMTP 40
V IMTP BO
60
6 8 10 20 30 40 60 80 100 200 300

Fig. 24. Comparison of metal RSR and metal IMTP.

200

100

80 J • RSR No.2 PP
• Ralu-Flow No.2 PP
60
8 10 20 40 80 80 100 200 300

Fig. 25, Comparison of the effective surface of plastic RSR No 2 and Ralu-Flow No 2 PP versus
liquid superficial velocity