Page 376 - Chemical process engineering design and economics
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Separator Design 355
Round off Z to 7 ft (2.13 m).
Because of the assumptions and approximations made in this problem, the
final design of the column must be confirmed by testing in a pilot plant. Cusack
and Karr [71] discuss the need for pilot plant testing.
NOMENCLATURE
A area or projected area
absorption factor
A A
A E extraction factor
filter area or cross-sectional area for flow
A F
At interfacial area in a decanter
total rotary drum area
A T
B bottoms flow rate
C concentration, mass per unit volume
CD drag coefficient
D packing size or drop diameter
D diameter or distillate flow rate
average diameter
D M
column efficiency
E 0
F fraction of drum area required for filtering
buoyant force
F B
drag force
F D
gravitational force
F G
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