Page 49 - Analysis, Synthesis and Design of Chemical Processes, Third Edition
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Indicators


                                                                          Recorders


                                                                          Controllers


                                                                   Show Instrument Lines



                                                                   For Utilities—Identify



                                                                      Entrance Utilities


                                                                         Exit Utilities


                                                             Exit to Waste Treatment Facilities

                    Each PFD will require many P&IDs to provide the necessary data. Figure 1.7 is a representative P&ID

                    for the distillation section of the benzene process shown in Figure 1.5. The P&ID presented in Figure 1.7
                    provides information on the piping, and this is included as part of the diagram. As an alternative, each
                    pipe can be numbered, and the specifics of every line can be provided in a separate table accompanying
                    this diagram. When possible, the physical size of the larger-sized unit operations is reflected by the size
                    of the symbol in the diagram.


                    Figure  1.7  Piping  and  Instrumentation  Diagram  for  Benzene  Distillation  (adapted  from  Kauffman,  D,
                    “Flow Sheets and Diagrams,” AIChE Modular Instruction, Series G: Design of Equipment, series editor
                    J. Beckman, AIChE, New York, 1986, vol 1, Chapter G.1.5, AIChE copyright © 1986 AIChE, all rights
                    reserved)
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