DISRE - Isothermal Reactor with Axial Dispersion

7 DISRE - Isothermal Reactor with Axial Dispersion 

This example models the dynamic behaviour of an non-ideal isothermal tubular reactor in order to predict the variation of concentration, with respect to both axial distance along the reactor and flow time. Non-ideal flow in the reactor is represented by the axial dispersion flow model. The analysis is based on a simple, isothermal first-order reaction. 

The reaction involves the conversion A — products, with the kinetics 

As discussed in Sec. 4.3.6, the axial dispersion flow model is given by 

Thus the problem involves the two independent variables, time t and length Z. The distance variable can be eliminated by finite-differencing the reactor length into N equal-sized segments of length AZ such that N AZ equals L, where L is the total reactor length. 

Thus the problem involves the two independent variables, time t and length Z. The distance variable can be eliminated by finite-differencing the reactor 

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