Product Distribution in a CSTR

In case the mixed reactions tackled in the previous section occur in a CSTR, the following molar balances are valid in the steady state  

After insertion of the rate expressions for ta Ts and the space time, r = V/V, the above balances are transformed to a new form  

The stoichiometric equations for the system, as well as all the concentrations, can, therefore, easily be calculated for a given value of the concentration of A. The space time for a CSTR is given by Equation 3.287  

For the special case cor = 0, one obtains through derivating Equation 3.286, which is set to be equal to zero, the following expression for the value of ca that is related to the maximum value of cr  

Inserting this value of ca into Equation 3.286 yields the maximum concentration of component R, CRmax for the case in which the initial concentration cor = 0  

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