A mixture of cyclohexane and cyclopentane is to be separated by liquid-liquid extraction at 25^oC with methanol. Phase equilibria for this system may be predicted by the NRTL or UNIQUAC equations. Calculate product rates and compositions and interstage flow rates and compositions for the conditions in figure with:

(a) N = 1 equilibrium stage.

(b) N = 2 equilibrium stages.

(c) N = 5 equilibrium stages.

(d) N = 10 equilibriumstages.

Transcribed Image Text:

Extract Feed Ibmol/h Cyclohexane Cyclopentane 300 700 25 °C Solvent Ibmol/h Raffinate Methanol 1000