Chapter 13, Problem 13.22P

A process stream contains light species 1 and heavy species 2. A relatively pure liquid stream containing mostly 2 is desired, obtained by a single-stage liquid/vapor separation. Specifications of the equilibrium composition are: x₁= 0.002 and y₁ = 0.950. Use data given below to determine T (K.) and P (bar ) for the separator. Assume that

Eq. (13.19) applies; the calculated P should be used to validate this assumption. Data: For the liquid phase,

$In{\gamma }_1=0.93x_2^2$

$In{\gamma }_2=0.93x_1^2$

$In{P}_i^{sat}/bar=A_i-\frac{B_i}{T/K}$

A₁= 10.08, B₁= 2572.0, A₂= 11.62, B₂= 6254.0