Problem 10.15: The VLE data in the table below were obtained using the SRK equation. The system under consideration is carbon dioxide (1) and cyclohexane (2). Using only data given in this problem, answer the following questions:
a) What is the saturation pressure of cyclohexane at 250 K?
b) Calculate the solubility (mole fraction) of CO2 in cyclohexane at 250 K under total pressure of 1 bar.
c) A vapor mixture of carbon dioxide/cyclohexane is to be separated by partial condensation in a vapor- liquid separator at 250 K so that carbon dioxide is received at a purity of 80%. Determine the pressure and the mole fraction of CO2 in the liquid.
d) If the feed stream in the previous question contains 30% CO2 by mole, calculate the recovery of carbon dioxide (i.e., moles of CO2 in the purified stream as a percentage of moles CO2 in the feed).
e) Clearly state and justify your assumptions.
