Packings Gempak

FIG. 14-59 Typical vendor data for liquid holdup of a structured packing, Gempak 2A. [Cou7tesy Glitsch, Inc., Dallas, Texas.]... 

In Fig. 112 a principle scheme of the corrugated structured packing Gempak is presented. 

Fig. 112, Principle scheme of the corragated stractured packing Gempak [296] (a) comigated sheet, (b) packing element, (c) arrangement of packing intersection.

FIG. 14-60 Comp arison of measured and calculated values of liquid holdup for Gempak 2A structured packing, air-water system. [Rocha et al., Ind. Eng. Chem., 32, 641 (1.9.93).] Reproduced with permission. Copyright 199.3 American Chemical Society. 

Gempak AT perforated, lanced packings designed for high... 

The heavy naphtha-Ught gas oil fractionation zone of a crude tower has to be revamped to handle 25% more capacity. Because trays would be working at high percent flooding, Gempak structured packing is condensed (Figures 9-56A-D). 

Figure 9-64. Pressure drop at the flood point as a function of ioad-ing. Values are calculated using the Stichimair et al. model and distillation conditions using cyclohexane/n-heptane and Gempak 2A packing. Note ordinate (N/m /m)/3.3853 = in. Hg/m. Reproduced by permission of the American Institute of Chemical Engineers, Fair, J. R. and Bravo, J. L., Chemical Engineering Progress, V. 86, No. 1 (1990) p. 19 ail rights reserved.

A Family of Gempak Packings for High Efficiency Fractionation, Bulletin 5140 (1993), Glitsch, Inc. 

Montz B1 (Fig. 8.11cf). In contrast with Mellapak , Flexipac, and Gempak , the corrugations of the Montz Bl packing are sinusoidal... 

Figure 8.11 (Continued) Common corrugated-type structured packings, (c) Gempak id) Montz fll . Part e, courtesy of Gtitsch, Inc, pared, courtesy of Sutter Engineering ...

For structured packings, tests with the Koch-Sulzer BX and CY wire-mesh packings and with Mellapak 250Y showed no diameter effect on HETP (3,19,32,33). Wu and Chen (167) state that the same applies to Gempak packings. On the other hand, tests with Hyperfil showed an increase in HETP with column diameter (168). 

Figure 11.6 Published HETP data for Gempak 0.5A, 1A, 1.5A, 3A, and 4A struotured packings (see Table 11.2 fer curve identification). (a) Plotted against vapor load (6) plotted against liquid load.

Structure packing (45° crimp) Gempak-A Metal Koch-Glitsch ... 

Example 22.2. Substitute Gempak 230 A2T packing, manufactured by Glitsch, for the 1-in. Intalox saddles in the tower of Example 22.1. (a) What increase in capacity is expected b) Will the pressure drop at 50 percent of the flooding velocity be greater or less than in the Intalox saddles ... 

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