Stirred Tanks and Differential Reactors

A component balance for a steady-state CSTR gives 

The experimental plan will also specify approximate values for The reaction rate for a key component is calculated using Equation (7.10), and the results are regressed against measured values of bgut, , and 

Example 7.1 The following data have been measured in a CSTR for a reaction having the form B. 

The density is constant and the mean residence time is 2h, as determined from the known volume of the reactor and the outlet flow rate. The temperature was the same for all runs. 

Solution An overall material balance gives -f = -I- bout- The data 

Solution An overall material balance gives ain + bin = aout + bout. The data are obviously imperfect, but they will be accepted as is for this example. The following program fragment uses the random search technique to fit the general form = ka utbnout. 

If sd bestsd Then bestk = k bestm = m bestn = n bestsd= sd End If 

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