Page 89 - Elements of Chemical Reaction Engineering 3rd Edition
P. 89

Chap. 2   Summary                                               61


                                             CSTR                           PFR

                 Levenspiel  plots









                                            Conversion,  X                Conversion,  X
                                     The PFR integral could also be evaluated by









                                     [see  Equation  (A-22) in  Appendix  A.41.  For  the  case  of  reactors  in
                                     series, for which there are no side streams, the conversion is based on
                                     the total conversion up to a specified point. For the reaction sequence











                                     the reactolr volumes can be determined from the areas under the curve
                                     of  a Levenspiel plot as shown below.






















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