Propylene (CH₃ 2CH₅CH₂ ) can be formed by the gas phase thermal cracking of n-butane:

A steady-state reactor (Figure 14-5) is maintained at a constant T = 500 K and a constant P. The feed to the reactor is 10 mol/s of n-butane. Assuming the stream leaving the reactor is at equilibrium, find the flow rate of propylene in the stream for each of the following cases  

A. The vessel has P = 1 bar.

B. The vessel has P = 25 bar, and the contents are modeled as an ideal gas mixture.

C. The vessel has P = 25 bar, and the mixture fugacity of each compound is determined from the Peng-Robinson equation.

The reaction at 500 K has an equilibrium constant K500 = 0.931.

Transcribed Image Text:

.. 10 CH + CH 4 9.