1) Verify if the total flow rate in Feed = sum of that in Bottoms and Distillate
   Repeat the above for overall flow

2) Verify if the energy content of Feed+ energy input through R-Duty =
   sum of energy content of Distillate and Bottoms, and energy removed by C-Duty

3)  Repeat the simulation for different product purities
    Calculate the energy requirement for each simulation
    Can you interpret the results?

4) Repeat this simulation with different thermodynamics
   Repeat this simulation with different feed conditions
   Try to reason your results