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To produce B according to the chemical reaction A B we have the following CSTR reactor ( Continuous Stirred Tank Reactor ) , shown in

To produce B according to the chemical reaction AB we have the following CSTR reactor
(Continuous Stirred Tank Reactor), shown in Figure 1, whose feed flow is q=15Lmin
considering a tank volume of V=100L.
Through the dynamic model of the reaction kinetics given by:
r1=k0e-EaRTCA
Where k0=0.6min-1,Ea=0.1Jmol,R=8.31JmolK and T=323K. We wish to
study the behavior of the concentration of reactant CA and of product CB inside the reactor. (Supose a concentration for CA and CB)
For this analysis, you have been asked as a Process Engineer to determine the following
points:
List 3 important assumptions that must be considered in the material and/or energy
balance in the above process to model the AB reaction kinetics described above
as a first-order differential equation.
Determine the first-order differential equation that models the behavior of chemical
kinetics inside the tank for the consumption of reagent A.
Determine the first-order differential equation that models the behavior of chemical
kinetics inside the tank for the production of compound B.
For both differential equations, express the dynamic model as a Transfer Function
and justify whether the consumption model of A and the production model of B are
stable (argue your answer with the Argand Diagram).
For both models, calculate the time constant and the profit of the process K.
Determine the units and explain which is faster, the consumption of A or the
production of B (justify your answer).
How long does it take for the chemical reaction to stabilize?
What is the concentration CA What remains in the reactor upon reaching the steady
state in the kinetic model, if an input feed (step type) of this substance of CAin=20
molL is considered?
Determine the CB(t) equation obtained by the inverse Laplace transform of the model
that represents the concentration of compound B inside the CSTR reactor.
Graphically shows the dynamic behavior of the concentration of B over time. What is
the maximum concentration of B that was obtained in the reactor in this experiment?
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