Page 288 - Applied Process Design For Chemical And Petrochemical Plants Volume II
P. 288

Packed Towers                                          277

                                                          Table 9-21
                             Relative Performance Characteristics of Tower Packing and Column Trays1
                                     ._           -. ...       .....           ...........     ...... -. .
                                                  Material   Relative   Mass   Pressure
          company               Configuration    of Const.2   costs   -fer4     Drop    Capacity  Comments
             ....    .   ...         ...          ...       .......   --     . -.
          GLITSCH, INC.
          ‘Lt.ays
          P-K TraysTM           Trays w/baffles              Mod       Med       Lo       V.Hi
          Screen Trays@         Venturi effect               Mod       Med       Lo       V.Hi
          Ballast@              Valve trays                  Mod       Med      Med       Med
          Bubble Cap            Bubble cap                    Hi       Med       Hi       Med
          Random Packing
          Ballast@              Pall rings                    Lo       Med      Med       Med
          Cascade Mini-         Low aspect ratio             Mod       V. Hi     Lo        Hi     Atmospheric-high
          Rings@                                                                                  pressure service
          Structured Packing
          Gempak@A              Corrugated,                  Mod       V.Hi     V.Lo      V.Hi    GempakE
                                perforated, lanced                                                packings
                                                                                                  designed for high
          Gempak@ AT            Corrugated,                  Mod       V.Hi     V.Lo      V.Hi    to moderate
                                perforated, lanced                                                vacuum service
          Glitsch Grid@         Lattice grid                  Lo        Lo       Lo        Hi     high heat transfer
          EF-23A, EF-23AP                                                                         service
          York Product
          Structured Packing
          Goodloe@              Knit mesh           M, P      Hi       E.Hi      Hi        Hi
          Goodloe@              Bicomponent knit   P + M      Lo       E.Hi      Med       Hi
                                mesh
          JAEGER PRODUCTS INC.
              .       ............   ~.   .   .            ...      .
          TRI-PACKS@            Hollow spherical     P        Hi       E.Hi      Lo       V.Hi    New scrubbing
          (Hacketten@                                                                             and stripping
          in Germany)                                                                             applications
          NOR-PAC@              Cylindrical rings/   P        Lo        Hi      E.Lo      V.Hi    Replacement
                                ribs                                                              scrubbing &
                                                                                                  stripping
                                                                                                  applications
          METAL VSP@            Hollow slotted       M       Mod       E.Hi      Lo       V.Hi    Used in new
                                ring                                                              service. Resist5
                                                                                                  damage by flow
                                                                                                  upset
          TOP-PAK@              Semi-spherical       M        Lo       V.Hi      Lo       \5  Hi   Large diameter
                                                                                                  packing for large
                                                                                                  columns
          NOVALOX@              Smooth, beveled,     C       Mod       Med       hled      Lo     Traditional shape.
          SADDLES               longitud. ribs                                                    Excellent
                                                                                                  mechanical
                                                                                                  strength
          BERYL@ SADDLES        Smooth, beveled      C        Hi       Med       Med       Lo     and resistance to
                                longitud. ribs                                                    thermal shock and
                                                                                                  chemical attack
          Structured Packing
          NOR-PACa              Mu1 ti-layers        P        Hi        Hi       Lo        Hi     Ideal packing for
          KOMPAKP screen cylinder                                                                 horizon tal
                                                                                                  scrubbers
          Metal structural      Vertical sheets      M        Hi       E.Hi      E.Lo     E.Hi
          packing               (New design)


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