1. Backgrounds[1]

This example represents C3 splitter. (C3 means propane, propylene)
The most popular uses of propylene gas include usage in the petrochemical industry, creation of polypropylene, and is also used as an acetylene alternative in oxy-fuel welding and cutting, brazing and heating of metal for bending purpose. (Polypropylene is used in automobile parts, household electrical parts, medical supplies, food packing films, plastic, etc.)
Propane known as liquefied petroleum gas, of LPG is a gas normally compressed and stored as a liquid. Propane is commonly used for fuel for engine application such as forklifts, farm irrigation engine, fleet vehicles, and buses
Because propane and propylene don't have azeotrope point, they can be isolated although these have similar boiling point. (Propane : -42.1$\mathrm{^\circ C}$, Propylene : -47.6$\mathrm{^\circ C}$)
Propane/propylene is to be split in a conventional fractionator with 149 theoretical trays including condenser and reboiler.
In general, separation processes for propane and propylene can be divided with heat pump.

[1] https://www.adamsgas.co.uk/2017/03/06/propylene-fuel-gas/#:~:text=The most popular uses of,of metal for bending purposes.

🔙

2. Objective

Propane/propylene is to be split in a conventional fractionator with 149 theoretical trays including condenser and reboiler. VLE data is available at the column thermal conditions, from which Peng-Robinson interaction coefficients were regressed, using the REGRESS, a program included with the Thermo Data Manager that may be installed with AVEVA PRO/II Simulation.