write a code to solve. And not use chemical constant package.

Use Thermo Library A stream that carries a mixture of 60% heptane and the rest benzene is compressed to unspecified temperature and cooled to 152C. The resulting vapor liquid mixture is separated in a vapor liquid separation. One of the stream contain 65% heptane. The mixture follows non ideal vle. You can assume that vapor is ideal mixture, and the liquid mixture can be modelled using UNIFAC. Find the pressure of all the after compression. Determine the liquid and vapor flow rates