Page 203 - Applied Process Design For Chemical And Petrochemical Plants Volume II

1 92 Applied Process Design for Chemical and Petrochemical Plants

I .o I . .
Studies of Bubble-Cap Tray Flooding.
(24-in. Tray Spacing)
0.50
Tower SUrfaCe
dia- tension
Symbol meter (Dynes/
(Fig. I) Investigator System (in.) em)
D Manning et aP Toluene/Iso-octane 60 20
Muller & Othmer" Nitrogen/Absorption Oil 66 26
a Fractionation research* Cyclohexane/n-Heptane 48 12
(I) Gerater et aI2 Acetone-Benzene 24 13-20
0 Clay et a15 Isobutane/n-Butane 36 8-10
0 Kelley et all9 Cracked gas fractionation 192 17
t I I ,,,I 1 + Kelly18 Refinery gas absorption 90 22
0.01 0.10 1.0
L/G(&,/RP"
Note: All holes e %-in. dia and about 10% of tray active hole area
Figure 8-140A. Bubble cap tray flooding; 24-in. tray spacing. referred to plate area between weirs.

1 o Air-Water
Acetic Acid-Water (17)-
0.50

0

0.01 0.10 I .o
L/G ( h/kp.8
Figure 8-140D. Sieve tray flooding, 12-in. tray spacing.
Figure 8-1409. Sieve tray flooding, 6-in. tray spacing.

1.0. I ' "'I I ' ' ' 'I 1.0
I ' ' 'S'p'cg., in. Hble/A;tive 'Rdf.' ' -
Air-Water (11) Xylenes 21 0.113 (2) -
+ Oil-Gas 24 0.059 (19) -
- 0 Air-Water 18 0.087 (23) -
(23)
" 0.50 - 0 AirWater 18 0.057 (17) -
v Acetic Acid-water 18
0.101
-----____ ---__ 24" SpaClng ti851
------* --_-________ -_ -=-__ /
12" Spacing 11851 -0- --__ -.
- -0-0.-
I
V -. 0"
0.10 0.10 - -

Figure 8-14OC. Sieve tray flooding, 9-in. tray spacing. Figure 8-140E. Sieve tray flooding, 18-in.-24-in. tray spacing.
Figure 8-140. Studies of sieve tray and bubble cap tray flooding (24-in. tray spacing). (Note that the references listed on the illustrations in Fig-
ure 8-140 are from the original source, while Ref. 185 is from this text.) Used by permission, Fair, J. R., Petro/Chem €ngineeG Sept. (1961) p.
45, reproduced courtesy Petroleum Engineer International Dallas, Texas.