Page 338 - Applied Process Design For Chemical And Petrochemical Plants Volume II

Packed Towers 327
4000 -

r
//
0’
A
I

h
(Y +
A/

1 10 100 1000

PRESSURE (mm Hg. Absolute)
Figure 9-52. Koch/Sulzer packing. Design mass velocity (Ibhr-ftq for HETP of 7 in. System cis-trans-decalin; molecular weight = 138. Used
by permission of Koch Engineering Co., Inc., Bull. KS-1.

Figure 9-53. KocWSulzer packing. Design mass velocities for systems
other than cis-trans-decalin are obtained by dividing the values from
Figure 9-52 by the “f” factor. For the following groups corrections
should be applied to the number of carbons in the molecule:
Paraffins, olefins acids, aldehydes, ketones 0
Benzene ring, alcohols, phenol -1 .o
Saturated ring -0.5
Nitro +1 .o
Ether +1.5
Ester, secondary amine +2.0
1 2 4 6 810 20 40 Chlorine +3.0
Bromine +8.0
NUMBER OF CARBON ATOMS IN MOLECULE Used by permission of Koch Engineering Co., Inc., Bull. KS-1.