Reflux ratio is defined as the amount of Reflux back to the column (R) to the amount of distillate out from the Reflux drum (D)
Reflux ratio = R/D
Reflux Ratio = Reflux/Overhead Product
What if, we increase Reflux, R such that it approaches to infinity?
This will lead the Reflux ratio to also approach to infinity.
This condition is known as total Reflux
Hence, Reflux ratio = infinity/0
Which is mathematically undefined
Which is not the case for our real world la kan
Dengan menggunakan Fenske Equation, at theoretical total Reflux condition, minimum number of theoretical stages can be determined.
Lagi banyak trays, means higher maintenance cost for tray repair activities