2. THEORETICAL FOUNDATIONS
2.4. Columns filling
2.4.1. Efficiency of a column filler
The efficiency of a column filler is expressed from the height of the filling (AUT) that it is necessary to carry out the transfer and the number of transfer units (NUT).
Therefore, can be expressed as:
Where:
AUT: height of transfer unit (m).
NUT: number of transfer units.
To calculate the height of a transfer unit can be performed using the following equation:
Where:
Kx·a and Ky·a: overall absorption coefficients (mole/s·m3).
S: cross section of the column (m2).
To calculate the number of transfer unit can be accomplished using the following expression:
If we integrate the above expression is obtained:
