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xxii                                                         Preface

                          C.  The Structure

                          The  strategy  behind  the  presentation  of  material  is  to  continually  build  on  a
                          few  basic  ideas  in  chemical  reaction  engineering  to  solve  a  wide  variety  of
                          problems.  These  ideas  are  referred  to  as  the  Pillars  of  Chemical  Reaction
                          Engineering, on  which  different  applications  rest.  The  pillars  holding  up  the
                          application of chemical reaction  engineering  are shown in Figure P-1.





















                                       Figure P-1  Pillars of  Chemical Reaction Engineering.

                              The architecture and construction of the structure shown in Figure P-1 had
                         many participants, most notably Professors Amundson, Aris, Smith, Levenspiel,
                         and Denbigh. The contents  of  this  book  may  be  studied in  virtually  any order
                         after the first four chapters, with few restrictions. A flow diagram showing possi-
                         ble paths is shown in Figure P-2.
                              In a three-hour undergraduate course at the University of Michigan, approx-
                         imately eight chapters are covered in the following order: Chapters  1,2,3,4, and
                         6, Sections 5.1-5.3, and Chapters 8, 10, and parts of either 7 or 13. Complete sam-
                         ple syllabi for a 3-credit-hour course and a 4-credit-hour course can be found on
                         the CD-ROM.
                              The reader will observe that although metric units are used primarily in this
                         text  (e.g.,  kmol/m3, J/mol),  a  variety  of  other units  are  also  employed  (e.g.,
                         lb/ft3). This is intentional. It is our feeling that whereas most papers published in
                         the future will use the metric system, today’s engineers as well as those graduat-
                         ing over the next ten years will be caught in the transition between English, SI,
                         and metric units. As a result, engineers will be faced with extracting information
                         and reaction rate data from older literature which uses English units as well as the
                         current literature using metric units, and they should be equally at ease with both.
                              The notes in the margins are meant to serve two purposes. First, they act as
         - 1             guides or as commentary as one reads through the material. Second, they identify
                         key  equations  and relationships  that  are used to  solve chemical  reaction  engi-
                         neering problems.
                              Finally, in  addition  to  developing the intellectual  skills discussed  above,
                         this is a book for the professional bookshelf. It is a “how to” book with numerous
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