Comparative Analysis of Conventional and Extractive Distillation to separate a mixture | Lecture# 24

Описание: AspenTech channel has brought another exciting video, in which conventional and extractive distillation schemes are compared for the separation of Heptane-Toluene Mixture. The comparative analysis is conducted, based on condenser and reboiler duties. Please do watch, like, and share the video, and subscribe the channel.

Problem Statement:

Feed Conditions:
Vapor Fraction = 0.5,
Pressure = 1 bar,
Flowrate = 100 kgmole/h,
Equimolar Heptane-Toluene mixture

Conventional Distillation:
Number of Stages = 80,
Feed Stage = 69,
Top product in vapor form,
Condenser and reboiler pressure as 1 bar,
99 mole% Heptane in the top product,
99 mole% Toluene in the bottom product.

Solvent Conditions:
Temperature = 181 °C,
Pressure = 1 bar,
Flowrate = 60 kgmole/h,
Pure Phenol (100 mole%).

Extractive Distillation:
1st Column:
Number of Stages = 50,
Feed Stage = 37 for feed, and 4 for solvent,
99 mole% Heptane from the top product,
Solution from the bottom product,
Condenser and reboiler pressure as 1 bar.

2nd Column:
Number of Stages = 28,
Feed Stage = 21,
99 mole % toluene from the top product,
99.999 mole% phenol from the bottom product.

Recycle the solvent.

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