Distillation

Shortcut Distillation

This web application performs shortcut distillation for multi-component system based on Fenske-Underwood-Gilliland (FUG) method. Feed point estimation is done based on Kirkbride equation.

Data

 

Provide constants A,B & C for Antoine vapor pressure equation. 

ln(P(mmHg)) = A - B / (T(Kelvin) + C)
# Name Mols A B C
1
2
3
4
5
6
7
8
9
10
Bar A
° K
 

Light Key

%

Heavy Key

%
 

Components arranged in ascending order of Boiling Point

Component NBP (K)
Methane 100
Methane 100
Methane 100
Methane 100
Methane 100
Methane 100
Methane 100
Methane 100
Methane 100
Methane 100
  Feed Top Bottom
Temp., °C 100 300 300
Phase V L L L
Flow, kmol/h 100 100 300 300
Composition (Mol Fraction)
Methane 100 400 300 300
Methane 100 400 300 300
Methane 100 400 300 300
Methane 100 400 300 300
Methane 100 400 300 300
Methane 100 400 300 300
Methane 100 400 300 300
Methane 100 400 300 300
Methane 100 400 300 300
Methane 100 400 300 300

Reflux Ratio vs Number of Stages

Reflux Ratio 20.43 20.43 20.43 20.43 20.43
Number of Stages 20.43 20.43 20.43 20.43 20.43

Reference

  1. Shortcut Distillation at cheguide.com