Page 188 - Packed bed columns for absorption, desorption, rectification and direct heat transfer
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178


                            Table 7. Geometrical characteristics of the packings used for obtaining the experimental constants
                                                          inEq.(25).

                            No  Symbol  Packing type and size,  Specific   Free     Reference
                                                              surface area  volume
                                       mm
                                                                z
                                                              m /m 3
                            1           Ceramic Rasehig Ring*  330         0.70     Zhavoronkov
                                  o
                                        14.5x14.5x2.5                               [158]
                                  •
                            2           Ceramic Rasehig Ring*  204         0.74     Zhavoronkov
                                        24x26x3.5                                   [158]
                                  CD    Ceramic Rasehig Ring*                       Zhavoronkov
                            3                                  140         0.78
                                        33x33x3.5                                   [158]
                                  c     Ceramic Rasehig Ring*                       Zhavoronkov
                            4                                 87.5         0.785
                                        49x48x5.5                                   [158]
                                  e
                            5           Steel Rasehig Ring*    104         0.97     Zhavoronkov
                                        50x50x0.5                                   [158]
                            6     9     Ceramic Rasehig Ring*  331         0.70     Maeh [21]
                                        15x15
                                  e
                            7           Ceramic Berl Saddle* 25  203       0.74     Maen [21]
                            8     Q     Ceramic Berl Saddle* 10  750       0.67     Mach [21]
                            9     ¥     Ceramic Rasehig Ring*  315         0.74     Saveanu [324]
                                        15.2x15.2x2.3
                            10    X     Ceramic Rasehig Ring*  204         0.40     Saveanu [324]
                                        23.5x23.9x3.7
                            11    ®     Cylindrical Graphite   204         0.40     White [215]
                                        Element* 14.3x14.3
                                  a     Graphite Rasehig Ring*                       White [215]
                            12                                 153         0.80
                                        30.2x30.2x2.4
                            13    A     Ceramic Rasehig Ring*  204         0.70     Alt [277]
                                        25x25x3
                                  •
                            14          Ceramic Pall Ring* 25x25x3  215    0.70      Alt [277]
                            15          Ceramic Rasehig Ring*  140         0.70      Alt [277]
                                        35x35x4
                                  •
                            16          Ceramic Pall Ring* 35x35x4  145    0.70      Alt [277]
                            17    B     Shortened Ring Element*  215       0.75      Kolev [8]
                                        10.5x25.3x3
   183   184   185   186   187   188   189   190   191   192   193