Page 377 - Chemical process engineering design and economics
P. 377
356 Chapter 6
g acceleration of gravity
H height
dispersion zone thickness
H D
HETS height equivalent to a theoretical stage
JT total volumetric flow rate per unit area
k flooding factor
entrainment factor
k v
K liquid-vapor or liquid-liquid equilibrium ratio
L length
the length of the dispersion layer
L D
LS length of the lower section of a column, or decanter length required
for the dispersed phase to settle
m mass or molar flow rate
m D mass of dry cake
mass flow rate of liquid, molar flow rate, or mass of a liquid drop
m L
ms mass of dry filter cake
m vapor mass flow rate or molar flow rate
ML molecular weight of a liquid
M v molecular weight of a vapor
n ; B number of moles of component i in the bottoms
number of moles of component i in the distillate
n iD
NA number of actual stages
number of equilibrium stages
N e
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