The separation column was modelled as a cascade of equilibrium
stages, each operating at fixed pressure and temperature.
Equilibrium conditions at each stage were expressed by means of
the thermodynamic model described in Section 2. An algorithm
was implemented using the software Octave in order to solve the
system of equations representing mass balances and equilibrium
conditions at each stage. The following input parameters need to
be provided for each simulation run: number of theoretical stages
of the separation column (N), feed composition and location, column
pressure (P), temperature of the first stage of the column (T1),
temperature of the stages from 2 to N(T), solvent to feed ratio (S/F),
pressure (PS) and temperature (TS) of the first top separator. The
programme calculates flow rates and mass fractions of the two
phases along the column
The separation column was modelled as a cascade of equilibriumstages, each operating at fixed pressure and temperature.Equilibrium conditions at each stage were expressed by means ofthe thermodynamic model described in Section 2. An algorithmwas implemented using the software Octave in order to solve thesystem of equations representing mass balances and equilibriumconditions at each stage. The following input parameters need tobe provided for each simulation run: number of theoretical stagesof the separation column (N), feed composition and location, columnpressure (P), temperature of the first stage of the column (T1),temperature of the stages from 2 to N(T), solvent to feed ratio (S/F),pressure (PS) and temperature (TS) of the first top separator. Theprogramme calculates flow rates and mass fractions of the twophases along the column
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