Question

A gas mixture which consists of ethylene (1)/propylene (2) with propylene mole fraction 0.65 has been stored in a closed vessel system at temperature of 320 oF and pressure 3 MPa. Using generalized correlation for the fugacity coefficient, calculate the followings:

a) Determine the fugacity coefficient for propylene in the gas mixture.

b) Estimate fugacity (bar) for ethylene in the gas mixture.

Answer 1

The notation used ij , when its i=j it denotes pure species, and when I not equal to j it denotes mixed species.

omega used here is an acentric factor

The value of the acentric factor, critical temperature and pressure can be found on internet or any standard book