Performance Equations for Reactors Containing Porous Catalyst Particles

5 PERFORMANCE EQUATIONS FOR REACTORS CONTAINING POROUS CATALYST PARTICLES 

For Plug Flow. Take a thin slice of the PFR. Then following the analysis of Chapter 5 for homogeneous reactions we have the situation shown in Fig. 18.9. 

At steady state a material balance for reactant A gives 

Note the similarity of this equation with Eq. 5.13 for homogeneous reactions. To bring this analogy closer let 

We have no name,for these two measures but if we wanted to we could call them by the ugly terms weight-time, and volume-time, respectively. So for first-order catalytic reactions Eq. 41 becomes 

---