Question

lowe Distillate Bottoms Deethanizer Ethylene tower Depropanizer Propylene tower Debutanizer 0.16 mol% C3H6 99 mol% C2H4 0.04 mol% C4's 0.1 mol%C3H8, C3H, 0.26 mol% C2H6 99 mol% C2H6 0.2 mol% C3's 15mo1% C3H6, C3H8 1.3 mol% C4's 0.2 mol% C5's

I need to identify:

1. Light key components for each tower
2. Heavy key components for each tower
3. Light key recoveries for each tower
4. Heavy key recoveries for each tower

Please explain thoroughly.

Answer 1

1. The light key components of each tower are given below

Deethanizer - C₃H₆

Ethylene tower -  C₂H₄

Depropanizer - C₄'s

Propylene Tower -  C₃H₆

Debutanizer- C₅'s

2. heavy key component of each tower is given below

Deethanizer - C₂H₆

Ethylene tower - C₂H₆

Depropanizer - C₃'s

Propylene Tower - C₃H₈

Debutanizer- C₄'s

3. Light key recoveries for each tower is given below

Deethanizer - 0.16 mol%

Ethylene tower - 99 mol%

Depropanizer - 0.04 mol%

Propylene Tower -0.1 mol%

Debutanizer- 0.2 mol%

4. Heavy key recoveries for each tower is given below

Deethanizer - 0.26 mol%

Ethylene tower - 99 mol%

Depropanizer - 0.2 mol%

Propylene Tower - 15 mol%

Debutanizer- 1.3 mol%

During the distillation process of any compound mixture, the lighter component present in the compound will come first from the distillation tower while heavier component will stay down in the tower. Those compounds which come first out are called distillate.