Page 157 - Chemical engineering design
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136                                   CHEMICAL ENGINEERING



                                                                                                    9316  no.
                                                                                       C & R Construction Inc  per  60  acid  t/y 100,000  Client BOP Chemicals  SLIGO  Sheet  Trace  2554.6  2146.0  Date  by  25/7/1980 Checked
                                                                                            cent






                                  Water                                              13  Product  acid  Nitric  Trace  Trace  Trace  Trace  1704.0  1136.0  4700.6  Dwg  1  43



                                     11            Absorber           Mixer  Product                          1
                                                                   12     13         12  Absorber  acid  Trace  Trace  Trace  1376.9  2840.0  40


                                Tail gas  10               9                         11  Water  feed  (Trace) (1)  26.3  1376.9  8  25  4.2)



                                                                                     10  Tail(2)  gas  371.5  10,014.7  21.9  967.2  29.4  10,434.4  1  25
                                  1                                7
                                                8          6                                                          (Example

                                To  sheet no 9317      Cooler         Condenser      9  Absorber  feed  683.9  10,014.7  202.5  11,897.7  8  40  process




                                                     Steam  5   Filter               8  Secondary  air  408.7  1346.1  967.2  850.6  1010.1  29.4  1754.8  8  40  acid  nitric  example

                                                                   W. H. B.          7  Condenser  acid  Trace  Trace  1860.7  1  40  simplified  See


                                                                                       Condenser  275.2  8668.8  202.5  Nil  1161.0  10,143.1  8  40  (1)
                                                                                     6  gas         (?) (1)
                                                               4
                                                      3
                                                                    Reactor  (Oxidiser)  5  W.H.B.  outlet  (935.7) (1)  8668.8  (1238.4) (1)  Trace  Nil  1161.0  12,003.9  8  234  Flow-sheet:



                                                                                       Oxidiser 4  outlet  Nil  935.7  8668.8  1238.4  12,003.9  8  907  4.2.
                                                    2A
                                                      1A                                                              Figure
                                                    Compressor  1
                                        2                          Vaporiser         3  Oxidiser  feed  731.0  2628.2  8644.7  12,003.9  8  204


                                               Filter                                2A  Oxidiser  air  2628.2  8644.7  Trace  11,272.9  8  230


                                                           Ammonia  14  From  sheet no 9315  2  Filtered  air  3036.9  9990.8  13,027.7  1  15

                                             Air

                                                                                 nominal  1A  Ammonia  vapour  731.0  731.0  8  20


                                                                                 Pressures  1  Ammonia  feed  731.0  731.0  8  15


                                                                                 kg/h  no.  Component         bar  ° C
                                                                                 Flows  Line  Stream  NH 3  O 2  N 2  NO  NO 2  HNO 3  H 2 O  Total  Press  Temp.
   152   153   154   155   156   157   158   159   160   161   162