Page 241 - Applied Process Design For Chemical And Petrochemical Plants Volume II

Chapter

Packed Towers

Packed towers are used as contacting equipment for gas- 1. Shell
liquid and liquid-liquid systems. Figures 9-1A and B pre- 2. Packing (one or more sections)
sent a cross-section of a typical unit. The shell is usually 3. Packing support(s)
cylindrical, although square wooden, light metal, or rein- 4. Liquid distributor(s)
forced plastic towers are used. The basic unit consists of: (text continwd on page 234)

t Gas Outlet

Liquid % Liquid Distributor

Shell

Khmped or Access Monwoy for
1 ,Stocked), L,../Packing Removal
I
\ IY I", ",..,,.......... ..*-.- ..-.. -..-- --
car nictillntinn nnnmtinn Faed Shnuld Enter
Between Support and Distributor ,unless
Packing Support Smoll(12"or less) Tower.
Flanged Connection for
Liquid Re-Distributor Access into Bottom Section
Stacked Layers

Intermediate
(Not Necessarily
Same as Bulk of &Pocking Support
Tower Packing) to
Prevent Support
Plate Plugging.

Figure 9-1 A. Cross-section of typical packed tower.

230