Page 21 - Distillation theory

P1: FCH/FFX P2: FCH/FFX QC: FCH/FFX T1: FCH
CB644-FM CB644-Petlyuk-v1 June 15, 2004 4:28

Nomenclature

A separation work
A stationary point of bond chain
A vertex of product simplex
B bottom stream (flow rate), kmol/sec
C (k) k-component boundary element of concentration
simplex
concentration simplex for n-component mixture
C n
d dimension of trajectory bundle
D overhead stream (flow rate), kmol/sec
E entrainer stream (flow rate), kmol/sec
F feed stream (flow rate), kmol/sec
h enthalpy of liquid, kJ/kg or kcal/kg
H enthalpy of vapor, kJ/kg or kcal/kg
h heave key component
i D : i B split in column (i D and i B – components of
overhead and bottom products respectively)
i : j split in section (i and j present and absent
component of section product or pseudoproduct
respectively)
K equilibrium ratio
k number of product components at sharp
distillation
k key component
k key stationary point (pseudocomponent)
K ∞ equilibrium ratio of component j at infinite dilution
j
K t equilibrium ratio in tear-off point
l light key component
L liquid stream (flow rate), kmol/sec
m number of product components at sharp
distillation

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