Page 300 - Applied Process Design For Chemical And Petrochemical Plants Volume II

Packed Towers 289

Table 9-26A
Packing Factors,* frl
Wet and Dumped Packing
. . . .~
Nominal Packing Sue, In.
Packing Type Material % M % K % 1or#1 1% 1% 2or#2 3 3% or #3
........ ~ .~ .. ..
Intalox@ IMTP@ Metal 51 (#15) 41 (#25) 24 (#40) 18 (#30) 12 (#70)
Hy-Paknl Metal 45 29 26 16
Super Intaloxm 60 30
Saddles Ceramic
Super Intalox
Saddles Plastic 40 28 18
Pall Rings Plastic 95-102* 32*-55 31*40 26 18* 17
Pall Rings Metal 76*-81 76* 48*-56 33*40 23*-27 18
IntaloxaSaddles Ceramic 723 330 200 145 92 52 40 22
RaxhigRings Ceramic 1600 1000 580 380 255 179 125 93 65 37
Raschig Rings Xip” 700 390 300 170 155 115
Metal
Raschig Rings HG”
Metal 410 300 220 144 110 83 57 32
Berl Saddles Ceramic 259 240 170 110 65 45
SnowflakeTh1 Plastic 13 (#38) 13 (#50) 13 (#go)
........... .~ . .- ... .
*By permission Norton Co., from data compiled in Norton Co. Laboratories, Copyright 1977.
Packing hctors determined with an air-water system in 30” I.D. Tower.
Updated by permission from R.F. Strigle, Jr., Random Puckings and Puchd Tmms, Gulf Publishing Co. (19SS), added SnowflakeT%I data by permission
Sorton Chemical Process Products Corp., Bull. ISPP-IR, E/90; * by permission Jaegar Products Co.
Table 9-26B
Koch Packing Factors*
.. ~.
Nominal Packing Size, In.
Packing Type Material % M % % % 1or#1 1% 1% 20rR 3 3%or#3
....... .~ ..... .... . .... ~ . .. .
Flexisaddles Plastic 30 20 15
Flexirings Plastic+ 78 45 28 22 18
Flexisaddles Ceramic 600 200 145 98 52 40 22
....... .... . .. .
*By permission, Koch Engineering Co. Inc.
+Use for plastic or metal.
Table 9-26C
Glitsch Packing Factors”

Nominal Packing Size, In.
Packing Type Material % M % % % 1or#1 1% 1% 20r#2 3 3%or#3
... -~ .... . .... ~.
BallastTM Ring Metal 48 28 20 13
Ballastm Ring Plastic 97 52 32 25 16
BallastTM Saddle Plastic 30 20 15
~- .. . .- ........ .
*By permission, Glitsch Inc.

Surface Tension Effects These results were later confirmed. For absorption sys-
tems these results also hold [82].
Strigle [82] reports that there is no broadly document- For hydrocarbons in high-pressure fractionators Strigle
ed agreement of :he surface tension effects on the capac- [82] reports there is aeration of the rather low surface ten-
ity of packed beds. Eckert [24,82] concluded that surface sion liquid phase. This effect increases with the lower sur-
tension of a non-foaming liquid had no effect on capacity. face tension and as the vapor density increases, thus