Page 281 - Applied Process Design For Chemical And Petrochemical Plants Volume II

270 Applied Process Design for Chemical and Petrochemical Plants

Metal “Rosette” Redistributor

OPTIONAL INSTALLATION
WITHIN 150 POUND INsT~LLED BETWEEN TOWER FLANGES

Figure 9-12. Metal rosette style redistributor. Used by permission of Norton Chemical Process Products Corp., Bull. TA-80.

for plastic packing, the bed should not compress or con-
solidate to create operational limitations.

Packing Installation

Stacked
Stacked packing is a hand operation and rather costly. It
is avoided where possible except for the initial layers on
supports. Liquid distributed on a stacked packing usually
flows straight down through the packing immediately adja-
cent to the point of contact. There is very little horizontal
liquid flow. Packing patterns perform differently, and are
illustrated in Figure 9-16A-C.

Dumped

Figure 9-13. Typical metal full cross-section redistributor. Used by Dumping is the most common method of Packing
permission of Norton Chemical Process Products Corp., Bull. TA-80. installation. If possible, the tower should be filled with