Chemical Engineering - Mass Transfer - Discussion
Discussion Forum : Mass Transfer - Section 1 (Q.No. 6)
6.
Total reflux in a distillation operation requires minimum
Discussion:
11 comments Page 1 of 2.
Upendra P said:
1 decade ago
Reflux ratio is inversely proportional to the number of plates?
Pyas said:
1 decade ago
At R=1 you have minimum no.of plates.
Devd said:
1 decade ago
Minimum reflex = max.no of plates.
Max.reflex = Min. no of plates.
Max.reflex = Min. no of plates.
(2)
Ahsan said:
1 decade ago
When Reflux ratio is Maximum, then load on condenser increases as condenser has to convert all vapors back into liquid phase without the extraction of overhead as product, rather it is completely sent back to the tower, thus increasing the load on condenser. Similar case is with re-boiler at this condition.
Therefore, Only thing that is to be right, the attainment of minimum no.of stages.
Therefore, Only thing that is to be right, the attainment of minimum no.of stages.
Surya said:
1 decade ago
Yes as the reflux ratio is maximum the amount of more volatile component entering the column from the top is maximum and the condenser has to do more work to condense the vapors, in reboiler the more volatile component increases and to vaporize that more amount of heat has to be supplied.
Sam said:
1 decade ago
And by the guys its not maximum reflux ratio its only optimized or total reflux ratio.
(1)
Akil Suhail said:
8 years ago
Condensed liquid send into the column is called reflux. Reflux ratio = L/D.
L= condensed liquid.
D = distillate products.
Reflux ratio is inversely proportional to the no of plate.
L= condensed liquid.
D = distillate products.
Reflux ratio is inversely proportional to the no of plate.
(1)
Raj Musale said:
7 years ago
As the reflux ratio is increased then; the reboiler has to evaporate more liquid and condenser has also to condense more vapour. So as reflux ratio is increased both reboiler and condenser load is increased.
Besides increasing the reflux ratio also increases the diameter of the column.
Besides increasing the reflux ratio also increases the diameter of the column.
(4)
AKYOUDDHVEER said:
6 years ago
Reboiler and condenser load increased and no of plate minimum.
(1)
Rajendra Pal said:
6 years ago
Total reflux means no over head product so number of plates minimum and condenser and reboiler load maximum.
(4)
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