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 2 of 2.
Zelalem addisu said:
2 years ago
Total reflux in a distillation operation requires a minimum reboiler load, but it does not have any direct effect on the number of plates or the condenser load.
In a distillation column operating under total reflux conditions, all of the condensed liquid is returned to the column as reflux, and no product is withdrawn from the system. This means that the reboiler duty, which is the amount of heat required to vaporize the liquid that is fed back into the column as reflux, is at its minimum level. The reboiler duty increases as the degree of separation required in the column increases, and it is generally highest when the column is operated at its maximum product rate.
In a distillation column operating under total reflux conditions, all of the condensed liquid is returned to the column as reflux, and no product is withdrawn from the system. This means that the reboiler duty, which is the amount of heat required to vaporize the liquid that is fed back into the column as reflux, is at its minimum level. The reboiler duty increases as the degree of separation required in the column increases, and it is generally highest when the column is operated at its maximum product rate.
(5)
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers