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Calculate the equilibrium conversion of a packed bed reactor

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Alkylation reactor producing ethylbenzene and side product di-ethylbenzene

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Alkylation reactor producing ethylbenzene and side product di-ethylbenzene
The conversion of ethylene is of importance as is the minimization of side product formation.
Further details can be found in Analysis, Synthesis and Design of Chemical Processes. 3rd Edition, Prentice Hall, 2009 by Turton.R, Bailie R.C., Shaeiwitz J.A
Four reactions are considered.
Ethylene + Benzene = Ethylbenzene
Ethylbenzene + Ethylene = Diethylbenzene
Diethylbenzene + Benzene = 2 Ethylbenzene
Toluene + Ethylene = Ethylbenzene + Propylene
The code calculates the equilibrium conversion by minimizing Gibbs free
energy. The notation used can be found in Introduction to Chemical Engineering Thermodynamics by Smith, Van Ness, Abbott.
This code is a good example on finding equilibrium conversion when
multiple reactions occur and the feed includes inerts.

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