1. Process Equipment Design Chemical Reactors

2. Reactor Classification – by Phase
Homogeneous – Simplest configuration
Single phase
Gas usually mixed through turbulent flow
Liquids usually stirred
Heterogeneous – Increased complexity
Two or More Phases
Gas/Liquid, Liquid/Liquid, Gas/Solid, Liquid/Solid Gas/Solid/Liquid
Mass and Heat Transfer resistance can be significant

3. Reactor Classification – by Flow Operational Mode
Batch Reactor
Continuous Stirred Tank Reactor (CSTR)
Tubular Flow Reactor (PFR)
Semi-batch Reactor -1 phase batch & 1 continuous
Fluidized Bed

4. Reactor Classification – by Thermal Operational Mode
Isothermal
Non-adiabatic (Q≠0)
Heat must be removed (∆H < 0)
Heat must be added (∆H >0)
Non-isiothermal
Adiabatic (Q=0)
Non-adiabatic (partial heat removed or added)

5. Examples of Chemical Reactors

6. Examples of Chemical Reactors

7. Ideal Reactor Modeling Mass (Mole) Balance Design Equations

8. Reaction Rate Laws and Kinetics

9. Reaction Rate Laws and Kinetics
Arrhenius Equation: k is constant for an isothermal system

10. Ideal Reactor Design Equations (isothermal system)

11. Ideal Reactor Modeling Mass Balance / Design Equations

12. Ideal Reactor Modeling Mass Balance / Design Equations

13. Ideal Reactor Modeling Mass Balance / Design Equations

14. Ideal Reactor Modeling Mass Balance / Design Equations

15. Ideal Reactor Modeling Mass Balance / Design Equations

16. Ideal Reactor Modeling Mass Balance / Design Equations
Example gas phase reaction algorithm involving the solution of 5 ODE’s

17. Reactor Heuristics

18. Reactor Heuristics

19. Reactor Type / Examples of Use

20. Reactor Type / Examples of Use

21. Aspen Input RStoic (Conversion)

22. Aspen Input RCSTR (CSTR)

23. Aspen Input RPlug (PFR)

24. Aspen Input for Reactions

25. Aspen Input REquil
RGibbs has similar specifications input but no reaction specification is required