Question

The irreversible gas phase rxn, A=> B+C is performed in an adiabatic, 800-liter PFR with a rate constant, k, as below:

k=60*exp(-5000/T) s-1

The feed is pure A at 15 bar and 450 K with a volumetric flow rate of 1.956 L/s. The heat of rxn is -12 kJ/mol (independent of temperature), heat capacities are CPA = 40 J/mol/K, CPB = 15 J/mol/K, and CPC = 25 J/mol/K. The reaction is operated at constant pressure

Plot (a) FA and FB versus reactor volume

        (b) Temperature versus reactor volume

        (c) volumetric flow rate versus reactor volume

Use Polymath to show these three plots and explain what you observe.

Answer 1