Catalyst Test Reactors and Kinetic Modeling

Heterogeneously catalyzed gas-phase reactions play a very important role in industrial chemistry. Therefore, this chapter deals with how kinetic data are obtained for such reactions. 

The kinetics of catalytic reactions can be explored using any type of reactor with known contacting pattern. The only prereqisite to observe is to apply the correct performance equation. Usually the extent of conversion of gas passing in steady flow through a batch or solids is measured. In turn we discuss the experimental devices  

A batch reactor for both gas and solid can also be used. 

We have a differential flow reactor on the premises that the rate is constant at all points within the reactor. The rate of reaction can be determined as a function of either concentration or partial pressnre of the reactants. Since rates are concentration-dependent this assumption can only be made for extremely small conversions or for shallow small reactors. 

For each run in a differential reactor the performance Equation 13-7 becomes 

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