Page 248 - Applied Process Design For Chemical And Petrochemical Plants Volume II

Packed Towers 237

RAXHIG RING LESSING RING CROSS-PARTITION RING TRIPLE SPIRAL RING DOUBLE SPIRAL RING

SINGLE SPIRAL RING
Figure 9-6A. Various packing shapes
NTALOX SADDLE
(Ceramic).

Figure 9-66. Raschig rings (ceramic, carbon, metal).

Figure 9-6D. Berl saddles (ceramic), dumped.

Figure 9-6C. lntalox@ saddles (ceramic), dumped. Used by permis-
sion of Norton Chemical Process Products Corp.

ered metal grids have inherently low free cross-sectional
areas. These may be less than 65% free area. Pressure
drops through support plates, such as shown in Figure
9-7D, are reported [82] not to exceed 0.3 in. water for
most applications. Also see Figures 9-7A-C, E, F. Fouling
service can create pressure drop problems.
(kxt continii~d on fmg~ 243) Figure 9-6E. Pall rings (metal), dumped.