Liquified propylene is used in the SOHIO acrylonitrile process. Most propylene is currently produced overseas and shipped via large pressure vessel ships to the facilities in the US. We have a large supply of propylene available overseas (1 million m3 gas per day) at 310 K and 3 bar. We want to compress this to 30 bar in a set of 20 identical compressors with 80% efficiency, and then condense each of the streams completely to a liquid at constant pressure. Calculate the work required by each compressor and the heat load on each condenser. A typical modern transport ship holds 160,000 m3 of liquid propylene. How long would it take to fill the ship with 15% ullage? Perform a more accurate calculation using the Vander Waal Equation of State.

(P+aVm21)(Vmb)=RT ab=6427PcR2Tc2=81PcRTc