Page 347 - Chemical process engineering design and economics

326 Chapter 6

100
80 3lal I ITIJ I I ! I I I l l l I I I I I I III I I I I ILL
^s

* *

o DMIIatlon of hydrocarbons
• Distillation of water solution!
X Abforption of hydrocarbons
+ Distillation data of William etal' 2
a Distillation data of FBI for valve trayi 4
I I I I 1 ILJ
0.1 .2 .4 .6 .8 1.0 2. 4. 6. 8. 10. 20. 40. 60.180.100. 200. 500. 1,000.
Viscosity-Volatility Product, cp

For ftactionators the relative volatility and viscosity of the key components are taken at the average of the the top
and bottom tray temperature and at the feed composition. For absorbers, separating hydrocarbons, the volatility is
taken as ten times Kt for the key component-

6.17 Column efficiency for fractitionators, absorbers, and strippers.
From Ref. 31 with permission.

1/2
Flow Parameter, (m L M L / m v M v) (pv / p0 .
Figure 6.18 Flooding factor for sieve, bubble cap, and valve trays. From
Ref. 52 with permission.

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