The Kremser-Brown-Souders (KBS) Equation
For dilute system, recall that both the operating line and equilibrium line are straight, even on x-y coordinates.
In this case, the number of theoretical stages required for a given separation can be calculated using the Kremser-Brown-Souders Equation as shown:
· Absorption
where A = L /mG is the absorption factor and is assumed constant.
· Stripping
where the stripping factor S = 1/A, is assumed constant.
Note: m = Henry's Law constant = slope of the equilibrium
line.