Additional Homework Problems

CDP6-25_B

1. Rework Examples 6-7 and 6-8 for the case where the toluene formed in reaction (E6-7.2) can also undergo hydrodealkylation to yield benzene, B:
   
   
   
   with k₃ = 11.2 (ft³/lb mol)^0.5/h.
   Include the concentrations of toluene and benzene in your results. The feed conditions given for Examples 6-7 and 6-8 apply to the case where all three reactions are taking place.
   
   
2. Vary the ratio of hydrogen to mesitylene (1 _H 20) and describe what you find.
   
   
3. What reactor schemes and feed conditions do you suggest to maximize ? ?
   
   
4. Suppose that the activation energies were E₁ = 20000 cal/mol, E₂ = 10000 cal/mol, and E₃ = 30000 cal/mol. What temperature would you recommend for the CSTR size in Example 6-8?