MXPA99000685A - Mounting of disarrastre for a tower of procesoquim - Google Patents

Abstract

The invention relates to a method and apparatus for the derailing and transfer of mass in a chemical process tower (12). The apparatus comprises a structured packing layer (e.g., a corrugated sheet) (104) coupled with a second type of packaging layer (e.g., a wire mesh) (102) positioned adjacent to the underside of a plate in the process tower (49). The double layer (100) reduces the entrainment of liquid in the flow (of rising steam and provides an additional region for the transfer of ma

Description

MOUNTING OF DISARRASTRE FOR A TOWER OF CHEMICAL PROCESS BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to chemical process towers and, more particularly, but not by way of limitation, to a derailment / mass transfer assembly for a dish tower to reduce liquid entrained in the rising steam flow and efficiently improve mass transfer.

DESCRIPTION OF THE REFERED TECHNIQUE The chemical process towers of the distillation column variety are used to separate selected components from a multicomponent stream. Generally, such gas-liquid contact columns use either plates or packages and sometimes combinations thereof. In recent years, the tendency has been to replace the "gurgling bells" so called by perforated plates or valve plates in a part of the designs of columns of plates, and the popularity of packed columns, either the random packing (emptying) or structured has been used in Ref. 29185 combination with the plates to effect the improved separation of the components in the stream.

Successful fractionation in the column depends on the intimate contact between the liquid and vapor phases. Some vapor and liquid contact devices, such as plates, are characterized by relatively high pressure drop and relatively high liquid retention. Another type of steam and liquid contact apparatus, that is to say structured packing of high efficiency, has also become popular for certain applications. Such a package is energy efficient, because it has low pressure drop and low liquid retention. However, these same properties sometimes make the columns equipped with a structured packing difficult to operate in a stable, consistent way. In addition, many applications simply require the use of dishes.

The plates of the fractionating column generally fall into two configurations: crossflow and counterflow. The plates generally consist of a solid plate or platform having a plurality of holes and are installed on support rings secured within the tower. In the cross flow plates, the steam rises through the orifices and makes contact with the liquid that moves across the plate through the "active" area of the plate. In this area, the mixture of liquid and vapor and fractionation is presented. The liquid is directed towards the plate by means of a vertical channel of the preceding plate. This channel is generally referred to as the Entry Drop Tube. The liquid moves transversely to the plate and exits through a similar channel generally referred to as the Exit Drop Tube. Such descent tubes are located where there is a sufficient volume of liquid to effect a chemical reaction, liquid-phase, in the case of catalytic distillation. The location of the descent tubes generally determines the flow pattern of the liquid. If there are two Entrance Descent Tubes and the liquid is divided into two streams on each plate, it is called a two-step plate. If there is only one Entry Drop Tube and one Exit Tube on the opposite sides of the dish, it is called a one-step dish. For two or more steps, the dish is often referred to as a multi-stage dish. The number of steps generally increases as it increases the proportion of liquid required (design). However, the active area of the dish is the one that most directly effects the vapor / liquid contact.

Not all areas of a dish are active due to the vapor / liquid contact. For example, the area below the Entry Drop Tube is generally a solid region, except as disclosed in the relatively recent patents that address the active entry areas. To try to gain more dish area for vapor / liquid contact, the drop tubes are often inclined. The maximum steam / liquid handling capacity of the dish generally increases with an increase in the active or bubbling area. There is, however, a limit as to how far the drop tube (s) can be tilted to increase the Bubbling Area, otherwise the channel will become too small. This can limit the flow of the liquid and / or limit the separation of the vapors contained in the liquid or generated in the descent tubes, cause the liquid to back up in the descent tube, and therefore prematurely limit the steam handling capacity / normal maximum liquid of the dish.

Gas-liquid contact plate technology of the type discussed above addresses many performance problems. Examples of this technology can be seen in several patents of the prior art, which include U.S. Pat. No. 3,959,419, 4,604,247 and 4,597,916, each assigned to Glitsch, Inc. and U.S. Pat. No. 4,603,022 published by Mitsubishi Jukogyo Kabushiki Kaisha of Tokyo, Japan. Other aspects of performance are addressed in the prior art by the use of derailleurs, plates and derailing devices. For example, U.S. Pat. No. 4,105,723 and U.S. Pat. No. 4,132,761, both assigned to Merricks Corporation, are directed to a special derailleur and to derailing structures which are placed inside a process tower. The U.S. Patent No. 5,262,094 (Karl Chuang, et al.) Also teaches the use of a bed of packing material placed under a fractionation plate.

As referred to above, it is therefore known in the industry to use a layer similar to a bed of packaging material contiguously adjacent to the bottom surface of a fractionation plate. The U.S. patent No. 5,262,094, mentioned above, refers to the location immediately below such a plate as the "separation zone". While certain advantages exist with it, as well as with the other technology developments discussed above, many such devices do not provide maximum capacity and efficiency for chemical process towers that meet the operating parameters required today. One problem, for example, is the manner of installation of such packing material beds in both new towers and existing columns. It is not always feasible to assemble a complete assembly immediately under a plate. Consideration should be given to structural assembly, as well as mounting, handling and size problems. In particular, this is correct in retrofitting existing towers to improve operating efficiency. Existing towers can not be retrofitted with an assembly without considering the referred size, handling, and assembly aspects in relation to the existing accessories already in the tower.

It should be an advantage to provide an assembly which provides both the uprooting and the mass transfer to maximize efficiency in chemical process towers. It should also be an advantage to provide such assembly in a retrofit configuration. The present invention provides such efficiency of derailing and mass transfer with flexibility in installation and assembly. Due to the use of a structured package with other packing material, and using discrete plate panel packing assemblies, the present invention can put the drag to work in the fractionation process. The liquid in the tower does not simply deviate backwards from the underlying dish, but rather traps and interacts with the rising steam to effectively achieve mass transfer between them. The present invention therefore is not simply the derailing, but the derailing and mass transfer in a mount which can be retrofitted in the existing towers.

BRIEF DESCRIPTION OF THE INVENTION The present invention relates to a liquid-vapor retention assembly to give the mass transfer therein and reduce the liquid entrainment passage therethrough. More particularly, one aspect of the invention comprises a mass transfer assembly for a chemical process tower of the type wherein the liquid flows downwardly towards and transversely to the plates through which the steam flows upwardly for interaction and mass transfer with it. One aspect of the invention comprises a double layer gasket assembly secured adjacent the underside of the plate to receive the upward flow of steam therethrough. The assembly has at least one layer formed from a structured package adapted to collect the liquid entrained in the vapor against it to provide a mass transfer surface thereof.

In another aspect, the invention described above includes the second layer of the double layer assembly comprising another packing material, which may be a wire mesh. The assembly is secured to the individual dish panels in discrete mounts. In one aspect of the invention, the discrete assemblies are attached and secured to the underside of the plate panel by mounting brackets.

In another aspect, the invention described above includes at least one layer of the package comprising a structured corrugated package, the corrugations of which are angled to each other in face-to-face relationship. The corrugated packaging may include flat areas that have a surface treatment thereon. The surface treatment of the flat areas of the corrugated packaging may comprise holes formed through the packaging.

In yet a further aspect, the present invention includes a method of removing entrained liquid from the rising gas in a chemical process tower of the type wherein the liquid flows down and through transversely to the plates placed inside the tower and the vapor amounts to ascending way through the plates for the interaction and mass transfer with the liquid. The method comprises the steps of providing a double layer assembly within the tower to receive the upward flow of steam therethrough. The assembly is then secured adjacent to a bottom side of a plate within the tower, and rising steam passes therethrough to collect the liquid entrained within the vapor on the mounting surface for mass transfer with the rising steam and the improved efficiency of the tower.

In another aspect of the invention includes means for mounting at least one racking assembly to a gas-liquid contact plate of a chemical process tower. The mounting means comprises support brackets that provide securing to a lower side portion of a discrete panel of a contact plate and at least one layer of the package having a width and length substantially equivalent to the plate panel for positioning below of the same and the assurance to the same by the corbels. In this way, the selected portions and / or all of a gas-liquid contact plate of the chemical process tower can be adapted with a racking assembly to maximize the operating efficiency thereof. Additionally, the derailment assembly and the derailing packaging and the panel assembly can be individually assembled and loaded in a chemical process tower for both the initial assembly of the tower or for the retrofitting of an existing tower.

In another aspect, the present invention includes the packing layer and the mounting of the tray panel described above wherein the support brackets are secured to the packaging layer by a plurality of support struts extending transversely therefrom and above them in a sandwich configuration. In one embodiment, an intermediate band can be used around the packaging layer to effectively limit excess movement of the packaging assembly to further increase the assurance thereof under the tray panel.

BRIEF DESCRIPTION OF THE DRAWINGS For a more complete understanding of the present invention and for the additional objects and advantages thereof, reference may now be made to the following description taken in conjunction with the accompanying drawings in which: FIG. 1 is a fragmented, perspective view of an illustrative packed exchange tower with several sections cut away to show a variety of internal parts of the tower for reference purposes in the discussion of a chemical process tower; FIG. 2 is a cross-sectional, side, schematic view of the rake assembly of the present invention secured within a certain process tower having a tunnel design for steam; FIG. 3 is a perspective view of the derailing assembly of the present invention, taken from a lower region of the tower; FIG. 4 is a cross-sectional, enlarged plan view of the assembly of FIG. 3, taken along lines 4-4 thereof; Y FIG. 5 is a perspective view of an alternative embodiment of a mounting configuration for the derailleur assembly of the present invention.

DETAILED DESCRIPTION OF THE MODALITIES With reference first to FIG. 1, a fragmented, perspective view of an illustrative packed tower or exchange column with several sections cut away to show a variety of internal parts of the tower is shown. The exchange column 10 of FIG. 1 is represented for reference purposes only and not necessarily represents the assembly of a commercially acceptable chemical process tower. It is shown in FIG. 1 a cylindrical tower 12 having a plurality of packing bed layers 14 and plates placed therein. A plurality of man registers 16 are also constructed to facilitate access to the inner region of the tower 12. A side outlet line 20, a liquid side supply line 18, and a steam supply line are also provided. side stream or return line of the reboiler 32. A reflow return line 34 is provided on top of the tower 12.

In operation, the liquid 13 is fed into the column 10 through the reflux return line 34 and the side stream feeding inlet supply line 18. The liquid 13 flows down through the tower and finally exits from the outlet. the tower either in the lateral intake line 20, or in the lower intake line 30. In its downward flow, the liquid 13 is exhausted from some material which evaporates from it as it passes through. the plates and packing beds, and is enriched or added to the material which condenses in it out of the steam stream. The vapor stream 15 ascends upwardly through the tower 12, as shown here.

Still with reference to FIG. 1, the exchange column 10 is cut schematically in half for purposes of clarity. In this illustration, the column 10 includes a steam outlet on the upper line 26 placed on top of the tower 12 and a lower skirt 28 placed in the lower region of the tower around the lower intake line 30 coupled to a reboiler (not shown). The return duct of the reboiler 32 is shown placed on top of the skirt 28 to recirculate the vapor therein upwardly through the plates and / or packing bed layers 14. The reflux of the condensers is provided in the upper region of the tower 23 through the return line 34 where the reflux is distributed along a liquid distributor 36 through the upper packing bed 38. It can be seen that the upper packing bed 38 is of the packing variety structured. The regions of the exchange column 10 below the upper packing bed 38 are shown for the purpose of illustration and include a liquid manifold 40 placed under a support grid 41 in the upper packing bed support 38. A distributor of liquid 42, adapted to redistribute liquid 13, is likewise placed under it. A second type of manifold 42A is shown below the cut line 43 and is positioned above the bed layers 14. The column 10 is shown with the cut line 43 to illustrate the fact that the arrangement of the internal parts of the tower is schematic only and is provided to refer to several sets of components therein.

With reference still to FIG. 1, a plate assembly in column 10 is also shown for illustration purposes. In many examples, the process columns contain only one package, only dishes, or combinations of packaging and dishes. The present illustration is, however, a combination for discussion purposes of the global tower and its operation. A column of plates usually contains a plurality of plates 48 of the type shown here. In many examples, the plates 48 are valve or perforated plates. Such plates comprise plates which are perforated or grooved in the construction. The steam and liquid are contacted in or along the plate and, in some assemblies, flow through the same holes in the countercurrent flow arrangement is allowed. Optimally, the vapor and liquid flows reach a level of stability. With the use of the drop tubes, which is described in greater detail below, this stability can be achieved with a relatively low flow rate that allows the rising steam to mix with the descending liquid. In some embodiments, the descent tubes are not used, and the steam and the liquid use the same orifices, alternatively as the respective change of pressures.

In the present illustration, the cross flow plates 48 and 49 and the down tubes 53 and 69 are shown. The plates 48 and 49 are of conventional design showing a perforated, valve or slotted surface 50. In this particular embodiment, a plurality of round valves is shown. Above plate 49 and immediately below plate 48 is a modality of a rake assembly 100 constructed in accordance with the principles of the present invention. The assembly 100 will be described in greater detail below.

Many design aspects different from those described above are considered in the planning and construction of such a tower. Of course, the flow of liquid and vapor must be considered. Corrosion is also a consideration of the various elements in the packed towers and the selection of material, design and manufacture of the internal parts of the tower is, in many instances, the result of such considerations. The anatomy of the process columns as shown in FIG. 1 is also described in more detail in an article by Gilbert Chen, entitled "Packed Column Internáis" which appears in the March 5, 1984 edition of Chemical Engineering, incorporated herein by reference.

With reference now to FIG. 2, a schematic, transverse, lateral plan view of various aspects of the derailing assembly of the present invention is shown. Plates 48 and 49 are generally flat panels that are drilled and installed with MINI V LVULES and vents 51a. The walls of the conical drop tube 54 of the type described in U.S. Pat. No. 5,453,222 assigned to Glitsch, Inc. Similarly, other plate surfaces and descent tube designs, of course, may be used in accordance with the principles of the present invention.

With reference to FIG. 2, the liquid 13 moves through a chordal descent tube 53 which generally comprises semi-conical walls 54, of the plate 48 placed on top. The generally semiconic walls 54 of the drop tube 53 provide a tunnel for the steam flow of the chambers 51a, whose tunnel gives a combination of the horizontal-vertical flow vector to the aerated steam through the vent chambers 51a. The liquid 13 is brought into contact with the aerated vapor 15 discharged from the chambers 51a of the sinusoidal section below the descent tube 53. The entrained gas escaping from the lower descent tube below the venting region is capable of ascending directly to and through the cameras 51a. Without the venting chambers 51a, in this particular embodiment, there would be no preferential vapor flow of the gas escaping from the drop tube and then all the steam would tend to rise through the conventional active region 52. This arrangement controls the direction of the steam aerated and the liquid flows through the central active region 52 of the dish 49; the conical adapter of the generally semiconic walls 54 gives a combination of horizontal-vertical flow characteristic of steam. Chambers 51a allow for any excess steam pressure that is dewatered through the sinusoidal section 51 and toward a flow configuration which facilitates the tower's own operation rather than creating more problems. For example, as described in U.S. Pat. No. 5,453,222, the vapor tunnel of the walls 54 prevents clogging, promotes vapor-liquid interaction and entrained liquid is induced to separation due to the flow configuration. The remaining rising vapor 15 passing through the plurality of orifices of the active region 52 can rise vertically to create a bubble 61. The bubble or foam is an aeration region in which the liquid phase 13 is continuous. When the bubble 61 does not exit or become discontinuous, it may result in an inversion to a gas-continuous regime in a "spraying" of gas upwardly therethrough.

With reference still to FIG. 2, an upset assembly 100 is secured below each of the upper 48 and lower 49 plates. The upset assembly 100 is shown, in this schematic illustration, to comprise a double packaging layer assembly. The upper layer 102 of each assembly 100 is formed of another packing material, such as a wire mesh. The lower layer 104 placed below the mesh layer 102 is formed of a structured packing. The specific assembly and types of packaging will be described in more detail below. Shown, for purposes of illustration, is a schematic illustration of the derailment assembly 100 placed within column 12 for discussion purposes. The support for the uprooting assembly 100 will be shown and discussed in more detail below. A schematic illustration of a support grid 106 is therefore shown to support the derailleur assembly 100. A variety of support configurations are possible in accordance with the principles of the present invention, and a specific configuration will be described below.

Still with reference to FIG. 2, the foam 61 extends with a relatively uniform height, shown in an imaginary line by the line 63 across the width of the plate 49 to the opposite end 65 where a dam 67 is established to maintain the height of the foam 63. accumulated foam at this point flows over the top of the dam 67 towards the associated descent tube 69 which brings the foam down to the generally semiconic region 70 where the liquid accumulates and disperses through the vent chambers 51a of the sinoidal section 71 under them. The sinusoidal section 71 is shown here in a schematic manner for purposes of illustration only. The area of the holes and bores for a single cross flow plate establishes the active length of the plate and the area in which the foam 61 is established. It should be noted that the rake assembly 100 of the present invention should also be applied to of the multiple drop tube, wherein the drop tubes and the inclined sections 51 and 71 can be placed in intermediate areas of the plates. Due to the increase of the total active area by the active venting chamber 51a greater capacity is achieved.

With reference now to FIG. 3, a perspective view of a portion of an upset assembly 100, of the general type shown in FIG. 1, removed from tower 12 and considered from a lower region thereof. The assembly 100 is formed with an upper layer 102 comprising another packing material. In the preferred embodiment, this packaging material is a wire mesh. Wire mesh packaging of this type has been used in process towers for many years. The wire mesh is usually made from a 0.011-inch diameter wire which produces a labyrinth of intertwined wires that effectively require the passage of fluid through it to make an indirect passage through the interstitial regions of the wire. A wire mesh package of this general type is shown and described in U.S. Pat. No. 3,218,048 entitled "Packing for Fractionating Column and the Like". As described herein, the wire filaments are woven or bonded, or otherwise manufactured to form a woven layer having a mesh of such size that the internal filament openings are not covered with a film by the passage of liquid through it, but is left open for the passage of gases while the liquid can flow along the surfaces of the filaments and through the capillary passages between the filaments. This fabric has been referred to as a non-film mesh. This is but an example of a wire mesh of the type that can be used in the layer 102 according to the principles of the present invention.

With reference still to FIG. 3, the structured packing 104 that is below the mesh package 102 is preferably formed from a plurality of corrugated plates 120. A variety of structured packing configurations has been used in the chemical process industry, and various configurations are represent in the US Patents which are assigned to Glitsch, Inc. One such patent, U.S. Pat. No. 4,950,430, shows a structured tower packing for vapor-liquid contact which includes a plurality of sheets 120 arranged generally vertically, aligned parallel to one another with the corrugations of adjacent sheets intersecting one another. As shown in the patents, the sheets are provided with a plurality of holes to effect both the distribution of liquid and vapor in the package. Such holes and / or other surface treatment appearing on the sheets 120 can be used in accordance with the principles of the present invention. The U.S. Patent No. 4,604,247, also assigned to Glitsch, Inc. shows another embodiment of such surface treatment which may be used in accordance with the principles of the present invention.

Accordingly, the sheets 120 are shown with corrugation fold lines 122 arranged at mono angles that are intercut when the adjacent plates 120 are placed in face-to-face relationship. In this way, a number of channels are formed, or generally triangularly transverse passages, which are angled ascending as far as the gas flow is concerned and which are angled downward as far as the liquid flow is concerned, the steps that are open and repeatedly intersect and intersect with other steps of opposite angulation sheets. A triangular-shaped passage 124 is therefore defined by a corrugated sheet 126, the sual extending upwardly and ending against the upper packing layer 102. A surface treatment 130 is illustrated schematically on a portion of the corrugated sheet 132 for the purposes of illustration, as described above. The surface treatment 130 may include surface irregularities of a wide variety of shapes and / or holes. A variety of surface patterns can be incorporated for a particular application. Likewise, a smooth sheet without holes may also be used in accordance with the principles of the present invention.

With referensia now to FIG. 4, there is shown a cross-sectional, lateral view of a disassembly assembly 100 of the present invention. FIGS. 3 and 4 show the derailment assembly in size props that are more even to the test sounders than the commercial installations where the diameter of the plate is generally much greater than the height of the derailment assembly. In spite of the above, the mesh packing layer 102 as shown here is colossally packed from the clogged packing saucer 104. Although the derailing assembly 100 is not shown installed in a tower, it is in FIG. 2, one embodiment of a support grid 140 is shown to support an uprooting assembly 100 implicitly substantially all of a plate within a press stand. Another support configuration is dessribe to sontinuation in rejection to FIG. 5. The grid 140 of the present embodiment has a plurality of horizontal support elements 142 sontous to a vertical element or bracket 144. The bracket 144 can be welded or otherwise secured to and from a tower element. Other embodiments of the support grid may also include a cage which substantially includes the rake assembly 100 and ensures mounting to the plate of the process column.

Proof In a test of the present invention, a distillation test is carried out by using a special rake fixation attached to the underside of a fixed mini-valve plate. The test is carried out in a methanol / water system similar to commercial applications, ie, 99% methanol concentration. The special derailment fixation is a combination of a mesh package and a structured packing of the type manufactured by Glitsch, Ins. The result of this test shows that a plate of fixed mini-valves is the upright fixation gives at least a 15% improvement in the layering on the regular fixed miniature valve plate, while maintaining the same high efisiensia are no reduction in the sortante efficiency due to liquid drag.

With referensia now to FIG. 5, a perspective view of a gas-liquid sontacto dish 200 constructed of a plurality of panel sessions 200, 204, 206 is shown. The first panel session 202 is secured below it with a derailment assembly 212. Disassembly mounts 214 and 215 are also mounted below panels 204 and 206, respectively. Each assembly 212, 214 and 215 are constructed of a width and length substantially equivalent to the length and width of the resilient panel sections 202, 204 and 206. As shown here, the assemblies 212, 214 and 215 are provided with a first layer of structured package 220 and a packaging layer 222 formed of a second type of package, such as a mesh package. Various packing layer combinations are possible in accordance with the principles of the present invention and the operation criteria of the process column.

Still with reference to FIG. 5, the packing assemblies 212, 214 and 215 are secured to the plate panels 202, 204 and 206 by a plurality of brackets 230, each depending on the underside of the panels. The brackets 230 are aligned in spaced relation generally parallel to each other in the support of the lower transverse struts 232 underlying the packing layers 220 and 222. A lower longitudinal strut 234 is cones and supported by transverse struts 232. The upper transverse struts 233 are also supported by the brackets 230 and the longitudinal support strut 236. The struts 232, 233, 234 and 236 therefore interlace the packaging layers 220 and 222 therebetween and structurally connect the packaging layers to the tray panel. . Modifications of the lower struts 232 and 234 or the upper struts 233 and 236 may be necessary for the particular packing materials and / or operating specifications within the process tower. Intermediate bands 240 can also be incorporated for structural stability. The webs 240 are shown in this particular perspective to be positioned generally along and diately from the ends of the packing layers 220 and 222 in securing the two packing materials therein. The use of the bands also increases the structural integrity of the assembly, as well as improves the manipulation thereof for the insection and / or elimination to the plate and / or the tower.

Still with reference to FIG. 5, the individual panels 202, 204, 206 of a particular plate 200 can be fixed with one or more packing layers to increase the operation of the tower. In some examples, although not shown in FIG 5, certain panels can not be attached to the package. [As with panel 206.]. The existing towers can also be retrofitted with such mounting using the holes in the surface of the plate. As shown in FIG. 5, the holes for the gas flow 250 which normally include circular valves 252 have been used for the securing of the brackets 230. In this particular perspective, a conventional threaded member, such as a bolt 251, extends through the bracket 230 and through the orifice of platen 250 and secured against it with a conventional nut 252 for securing the packing layers 220 and 222 beneath it.

Although a preferred embodiment of the method and apparatus of the present invention has been illustrated in the accompanying drawings and described in the above Detailed Description, it will be understood that the invention is not limited to the described mode, but is susceptible to numerous rearrangements, modifications and substitutions. without departing from the scope of the invention as shown and defined by the following claims.

It is noted that in relation to this date, the best method known by the applicant to carry out the aforementioned invention, is the conventional one for the manufacture of the objects to which it relates.

Having described the invention as above, the content of the following is claimed as property.

Claims (25)

1. A derailment assembly, mass transfer for a chemical process tower of the type where the liquid flows down to and transversely to the plates through which the steam flows upwardly for the interaction and mass transfer with it, characterized in that the assembly comprises: a double-layer gasket assembly secured adjacent to one of the plates to receive upward steam flow therethrough and having at least one layer formed from a structured gasket adapted to collect the liquid entrained in it. the vapor against the same to provide a mass transfer surface thereof, the packaging structure comprises a plurality of corrugated plates, wherein the corrugations of the adjacent plates are angled to each other in face-to-face relationship, and where each of the corrugated plates includes flat areas that have a surface treatment thereof.

2. The apparatus according to claim 1, characterized in that the second layer of the second double layer assembly comprises another packing element.

3. The assembly according to claim 1, characterized in that the assembly is secured to a lower side of one of the plates.

4. The apparatus according to claim 1, characterized in that the assembly is secured to the plate by a supporting frame.

5. The apparatus according to claim 4, characterized in that the support frame comprises a metal grid.

6. The apparatus according to claim 4, characterized in that the support frame comprises a plastic grid.

7. The apparatus according to claim 1, characterized in that the surface treatment of the flat areas comprises holes formed through the plates.

8. A method of removing entrained liquid from the rising gas in a chemical process tower of the type where the liquid flows down through and through the plates placed inside the tower and the steam rises upwardly through the plates for interaction and mass transfer with the liquid, characterized in that the method comprises the steps of: forming a double package layer assembly comprising at least one layer of a structured package, the structured package comprises a plurality of corrugated plates, wherein the corrugations they are angled to each other in face-to-face relationship, and where each gives the corrugated plates includes flat areas that have a surface treatment thereon; place the assembly inside the tower to receive the upward flow of steam through it; ensure mounting adjacent to a bottom side of a plate within the tower; introduce steam and liquid in the tower for the opposite current flow in it; and the collected liquid entrained within the steam on the surfaces of the assembly for the mass transfer with the steam and the improved efficiency of the tower.

9. The method according to claim 8, characterized in that the double layer step comprises forming the assembly from another packing element.

10. The method according to claim 8, characterized in that the step of the assembly is secured to a lower side of one of the plates comprising securing the mounting to the plate by a supporting frame.

11. The method according to claim 10, characterized in that the support frame comprises a metal grid.

12. The method according to claim 10, characterized in that the support frame comprises a plastic grid.

13. The method according to claim 8, characterized in that the surface treatment of the flat areas comprises openings formed through the plates.

14. An upset assembly for a gas-liquid contact tower of the type having liquid plates placed therein to generally accommodate the countercurrent flow of liquid therethrough and gas therethrough, characterized in that the assembly comprises : at least one packing assembly for the gas-liquid upset; the dishes that are constructed with a plurality of panels have an upper side for the flow of liquid therethrough and a lower side for receiving the flow of rising gas therethrough; at least one of the plate panels has a width substantially equal to the width of the packaging assembly; and means for securing the packaging assembly to the underside of at least one plate panel to segment the assembly within the tower.

15. The apparatus according to claim 14, characterized in that the securing means comprise a plurality of angle brackets configured for securing to the underside of the panel, the brackets that are configured on the first end for securing the panel and over a second end opposite the means for supporting the packaging assembly.

16. The apparatus according to claim 15, characterized in that the means for supporting the packaging assembly comprises a mounting post adapted for securing to the second end of the bracket to extend below the packaging assembly in the support thereof.

17. The apparatus according to claim 16, characterized in that it also includes a support strut for the upper packing assembly extending through the packing assembly under the panel for securing the packing assembly below it.

18. The apparatus according to claim 17, characterized in that the struts comprise elongated metal plates extending between the brackets for supporting the packaging assembly.

19. The apparatus according to claim 14, characterized in that the packaging assembly includes a structured package.

20. The apparatus according to claim 19, characterized in that the packaging assembly further includes a second packaging material of another type coupled thereto.

21. The apparatus according to claim 20, characterized in that the other type of packaging material comprises a wire mesh package.

22. A method of reducing drag while extending the range of operation and maintaining efficiency in a chemical process tower of the type having plates secured therein, the dishes being constructed of individual panels, characterized in that the method comprises the steps of : provide a structured package; form a derailment fixation from a structured package; construct the derailment fix for a dish of the chemical process tower in discrete bullets of a size generally equivalent to that of one of the combs of the dish of the chemical process tower; and mounting the individual bales of the rake attachment to the underside of some individual dish panels for individual mounting within the chemical process tower.

23. The method according to claim 22, characterized in that the step of constructing the derailleur fixation comprises forming at least one layer of wire mesh package adapted for positioning on the structured package.

24. The apparatus according to claim 21, characterized in that the packaging structure comprises a plurality of corrugated plates, wherein the corrugations of the adjacent plates are angled to each other in face-to-face relationship, and wherein each of the plates Corrugated includes flat areas that have a surface treatment thereof.

25. The method according to claim 23, characterized in that the packaging structure comprises a plurality of corrugated plates, wherein the corrugations of the adjacent plates are angled to each other in face-to-face relationship, and wherein each of the plates Corrugated includes flat areas that have a surface treatment thereof.