1. Chemical Reaction Engineering Asynchronous Video Series Chapter 3, Part 2: Reaction Stoichiometry: Batch H. Scott Fogler, Ph.D.

2. Why Stoichiometry? If we have Then we can size a number of CSTR and PFR reaction systems To find -r A = f(X) 1)Need the rate law, -r A =f(C A, C B ) 2)Need the reaction stoichiometry, C A =C A0 (1-X) [Liquid Phase] X !!

3. Batch Stoichiometric Table SpeciesSymbolInitialChangeRemaining A A ________ ____________

4. Batch Stoichiometric Table SpeciesSymbolInitialChangeRemaining B B ________ ____________ A A

5. Batch Stoichiometric Table SpeciesSymbolInitialChangeRemaining CC ________ ____________ B B A A

6. Batch Stoichiometric Table SpeciesSymbolInitialChangeRemaining DD ________ ____________ CC B B A A

7. Batch Stoichiometric Table SpeciesSymbolInitialChangeRemaining DD ________ ____________ CC B B A A InertI -------

8. Batch Stoichiometric Table SpeciesSymbolInitialChangeRemaining DD ________ ____________ CC B B A A InertI -------

9. Batch Stoichiometric Table SpeciesSymbolInitialChangeRemaining DD ________ ____________ CC B B A A InertI ------- where and

10. Concentration: Batch Systems Constant Volume Batch:

11. Concentration: Batch Systems Constant Volume Batch: Note: if the reaction occurs in the liquid phase or if a gas phase reaction occurs in a rigid (e.g., steel) batch reactor Then

12. Concentration: Batch Systems Constant Volume Batch: Note: if the reaction occurs in the liquid phase or if a gas phase reaction occurs in a rigid (e.g., steel) batch reactor Then etc.

13. Concentration: Batch Systems Constant Volume Batch: Note: if the reaction occurs in the liquid phase or if a gas phase reaction occurs in a rigid (e.g., steel) batch reactor Then etc. If then And we have –r A =f(X)