DE102018005694A1 - Mass and / or heat exchange column and method for treating a first fluid and a second fluid using a mass and / or heat exchange column - Google Patents

Abstract

The invention relates to a mass and / or heat exchange column (100) with an outer shell (1), which includes a column interior (2), with a first fluid inlet (3) leading through the outer shell (1) into the column interior (2) and with a second fluid inlet (4) leading through the outer shell (1) into the column interior (2), the first fluid inlet (3) being arranged in the column interior (2) and the second fluid inlet (4) one in the Column interior (2) arranged second fluid guide unit (6) is assigned. A fluid mixing unit (7) arranged in the column interior (2) is provided, the first fluid guide unit (5) being set up to supply a first fluid fed into the column interior (2) via the first fluid inlet (3) to the fluid mixing unit (7) , wherein the second fluid guide unit (6) is set up to supply a second fluid fed into the column interior (2) via the second fluid inlet (4) to the fluid mixing unit (7), and wherein the fluid mixing unit (7) is set up to supply the first and to mix the second fluid at least partially with one another. A method for the processing of a first fluid and a second fluid is also the subject of the present invention.

Description

The invention relates to a mass and / or heat exchange column and a method for treating a first fluid and a second fluid using a corresponding mass and / or heat exchange column according to the respective preambles of the independent claims.

State of the art

In different areas of the chemical industry, mass and / or heat exchange columns are used for process engineering treatment, in particular for material separation, of fluids. For example, mass transfer columns in the form of rectification or distillation columns can be used for the low-temperature separation of air. Methods and systems for the low-temperature separation of air are known from the general specialist literature, for example from H.-W. Häring (ed.), Industrial Gases Processing, Wiley-VCH, 2006, in particular Section 2.2.5, "Cryogenic Rectification".

Air separation plants typically have arrangements with at least two rectification columns to provide nitrogen and oxygen-rich air products. Typically, at least one so-called high-pressure column, also referred to as a pressure column, and a so-called low-pressure column are provided. The operating pressure of the high pressure column is, for example, 4.3 to 6.9 bar, preferably about 5.0 bar. The low pressure column is operated at an operating pressure of, for example, 1.3 to 1.7 bar, preferably approximately 1.5 bar. So-called medium-pressure columns can also be used, for example, which are operated at an operating pressure that lies between the stated values. In particular, the low pressure column can be formed in two parts.

In air separation plants which are used to obtain further air products, at least one further rectification column is typically present in addition to the rectification columns mentioned. If argon is obtained, at least one so-called raw argon column and typically also a so-called pure argon column are provided.

In addition to air separation plants, any other methods in which mass and / or heat exchange is carried out using mass and / or heat exchange columns benefit from the measures proposed in the present application. Examples include the cryogenic decomposition of natural gas, separation processes for the preparation of gas mixtures, which are provided by material-converting processes, separation columns in refinery processes and the like. The present invention is not limited to specific methods, especially not to air separation.

If the term “mass and / or heat exchange column” is used below, this is understood to mean an apparatus which is typically cylindrical and can in particular be equipped with one or more suitable packings or internals. For example, a rectification column designed for mass transfer is a separation unit which is set up to at least partially separate a component mixture fed in by gaseous or liquid or in the form of a two-phase mixture with liquid and gaseous components, possibly also in the supercritical state, by rectification, that is to produce pure substances or substance mixtures with at least a different composition from the component mixture. As is known, rectification comprises repeated evaporation and condensation processes, in particular on or using internals suitable for this purpose, for example partitions or ordered or unordered packings. In principle, a rectification column can be understood as an arrangement of distillation stages cascaded in countercurrent.

In principle, however, the present invention is also suitable for other types of mass and / or heat exchange columns, for example washing columns, absorption columns, flash columns, stripping columns and the like. Such mass and / or heat exchange columns can differ structurally from rectification columns, in particular in that other or no additional apparatus such as condensers or evaporators are provided.

For the design and specific design of corresponding mass and / or heat exchange columns, reference is made to relevant textbooks (see, for example, K. Sattler, “Thermal Separation Processes: Fundamentals, Design, Apparatus”, 3rd Edition 2001, Wiley-VCH, Weinheim).

In the operation of mass and / or heat exchange columns, it is often necessary to feed in fluid mixtures at defined positions, which are formed with the formation of several fluid streams of different compositions. In addition to different compositions, however, corresponding fluid flows can also have other different fluid properties, for example different temperatures. Should several fluid streams of a corresponding mass and / or heat exchange column be on the same Altitude are supplied, a mixture of these fluid streams is usually carried out prior to the feeding. In this way, an inhomogeneous distribution over the cross section of the mass and / or heat exchange column caused by the different compositions and / or other fluid properties can be prevented, which could have a disadvantageous effect on the mass and / or heat exchange process carried out in each case. In the prior art, corresponding fluid flows are therefore mixed at a defined column height via additional piping outside the column body.

Different boundary conditions, for example lack of space, can make it difficult or impossible to mix the gas streams before they are fed into the mass and / or heat exchange column. The present invention therefore has the task of being able to efficiently carry out a thorough mixing of fluids that are fed into a mass and / or heat exchange column even in such cases.

Disclosure of the invention

Against this background, the present invention proposes a mass and / or heat exchange column and a method for treating a first fluid and a second fluid using a corresponding mass and / or heat exchange column with the respective features of the independent claims. Preferred embodiments of the present invention are the subject of the dependent claims and the following description.

If the previously described boundary conditions exist that make it difficult or impossible to mix gas streams before they are fed into a mass and / or heat exchange column, it is of crucial importance for an efficient functioning of the mass and / or heat exchange column that the mixing within the Column body with high mixing quality, ie Homogeneity can be achieved with as little additional obstruction of the column cross section as possible. Otherwise, for example, an inhomogeneous distribution of the fluid flows or their components can lead to reduced separation performance. The present invention solves this problem by measures which enable efficient mixing within the column body.

The present invention is based on a mass and / or heat exchange column with an outer shell which encloses an interior of the column. A first fluid inlet and a second fluid inlet lead into the interior of the column through the outer shell. In the context of the present invention, the first fluid inlet and the second fluid inlet are in particular set up for coupling to lines or are coupled to corresponding lines, by means of which a first fluid and a second fluid can be fed into the interior of the column.

The term “column interior” refers in particular to the space within which internals are located in the mass and / or heat exchange column which promote mass and / or heat exchange. The interior of the column differs from the fluid inlets (and also existing fluid outlets) by its larger clear width, which is defined by the outer shell.

Inside the column interior, i.e. A first fluid guide unit and a second fluid guide unit are provided, not in the form of an external piping but in the form of structures arranged inside the column interior, the first fluid guide unit being coupled or fluidly connected to the first fluid inlet and the second fluid guide unit to the second fluid inlet.

In the context of the present invention, a “fluid guide unit” can in particular be understood to mean a closed, tube-like arrangement, but in particular it is also possible to design corresponding fluid guide units only in the form of fluid guide structures that at least the predominant part of the respective (first or second) fluid steer in a certain direction. Since the fluid conduction units are formed within the interior of the column, even if the fluid conduction units are not completely sealed, fluid that leaves the fluid conduction units is not lost but flows into the further interior of the column and can also be subjected to a mass and / or heat exchange there.

According to the invention, a fluid mixing unit is provided in the interior of the column, the first fluid guide unit being set up to at least partially feed a first fluid fed into the interior of the column via the first fluid inlet to the fluid mixing unit, and the second fluid guide unit being set up to feed one into the interior of the column via the second fluid inlet feed at least partially fed second fluid to the fluid mixing unit.

In the context of the present invention, the fluid mixing unit is set up to mix corresponding fluids with one another, the present invention not being limited to the mixing of only two fluids. Is therefore within the scope of the present invention of one first fluid inlet and a second fluid inlet or a first fluid guide unit and a second fluid guide unit, this does not exclude the possibility that further fluid inlets, fluid guide units and the like can also be provided. In such a case, the fluid mixing unit can in particular be set up to also mix corresponding further fluids.

The mixing in the fluid mixing unit does not have to take place completely in the context of the present invention; rather, only a premixing can be carried out in the fluid mixing unit. Final mixing can then be achieved by distributing a suitably formed and possibly still inhomogeneously mixed mixed fluid over mass and / or heat exchange areas of the mass and / or heat exchange column or in corresponding areas. A corresponding premixing can also prevent inhomogeneities in the fluid distribution within a corresponding mass and / or heat exchange column.

According to a particularly preferred embodiment of the present invention, the fluid mixing unit is assigned one or more fluid distribution units which are set up to distribute a mixing fluid formed in the fluid mixing unit by mixing at least the first fluid and the second fluid in a region of the interior of the column. Corresponding fluid distribution units can, as explained in particular with reference to the accompanying figures, proceed from the fluid mixing unit, which can be arranged in particular on or near the outer shell in the column interior, in the direction of the column interior or along the outer shell. Corresponding fluid distribution units can in particular also be designed as distributors or can be coupled to such distributors.

Devices for feeding fluids into a mass and / or heat exchange column and for distributing the fluid in the column are basically known from the prior art. For example, a baffle plate or a structured or ordered packing (English structured packing) can be provided in the mouth area of a feed line, which causes a fine distribution of the corresponding fluid or a distribution over the cross section of the column. Corresponding distribution devices can in particular also cause a fluid flow in a certain direction, for example in the direction of the column sump. Tangential gas guiding devices are known, for example, for feeding gases into corresponding columns. In principle, the present invention can be used with all of these known devices, and the fluid mixing unit can be coupled with such devices.

As already explained above, mass and / or heat exchange columns are basically designed in the form of at least sectionally cylindrical units or apparatus. In other words, the interior of the column is designed, in particular, at least in one section in the form of a cylinder with a cylinder axis. The cylinder axis runs vertically or essentially vertically when a corresponding mass and / or heat exchange column is used, so that, for example in the case of a rectification column, fluid in the liquid state collects in the bottom of the column or flows off in the direction of the bottom and fluid in gaseous form State in the column rises towards the head.

As already explained, in certain cases it is necessary to feed fluid at the same level into a corresponding mass and / or heat exchange column. This is precisely where the present invention comes into play and enables a particularly homogeneous mixing of the corresponding fluids for such cases, even with different fluid properties, as already explained.

In the context of the present invention, the first fluid inlet and the second fluid inlet are therefore arranged in particular in a common plane which is perpendicular to the cylinder axis. This common plane corresponds to a common height when using the column, in which, as already mentioned, the cylinder axis is arranged vertically.

The present invention can use in the fluid mixing unit for mixing the fluids, in particular the structured or ordered packings already mentioned. Structured or ordered packings are described extensively in the specialist literature, for example by M. Kraume, Packing Columns, In: Transport Processes in Process Engineering, VDI Book, Springer 2012. The specialist chooses from the known depending on the required technical effects or existing boundary conditions.

A structured or ordered packing can consist in particular of thin, corrugated and optionally perforated metal plates or wire nets. In the case of structured or ordered packings of corrugated metal plates, the ribs formed by the corrugation can be arranged at different angles relative to a reference direction, in particular the central axis of a mass and / or heat exchange column, the ribs of adjacent plates being at an angle, for example of 90 ° to each other. Corresponding ribs can also have a different orientation to the reference direction in different areas.

The metal plates used in such structured or ordered packings can have smooth or patterned (further structured) surfaces, with perforation optionally being provided in each case. The metal plates can in particular be made of different materials such as carbon steel or stainless steel and have different wall thicknesses depending on the required load capacity.

Within the scope of the present invention, structured or ordered packings made of plastic can also be used, the structure of which can fundamentally correspond to the mentioned structured or ordered packings of corrugated metal plates, but can also be constructed differently to this, as explained further below. In particular, materials such as polyethylene, polypropylene, polyvinylidene fluoride and / or polytetrafluoroethylene can be used in appropriate packages. The use of structured or ordered ceramic packings is also possible within the scope of the present invention.

Instead of the structuring explained above in the form of corrugated (metal, plastic or ceramic) plates, it is also possible, for example, to use lattice structures made of the corresponding materials. Lattice structure packs are particularly suitable for applications with high demands on capacity.

In structured or ordered packs that can be used in the context of the present invention, metal grids, expanded metal or metal mesh or corresponding structures made of other materials can also be used, for example, as required. All of the elements used in the context of the present invention can be produced by means of additive manufacturing processes (AM). In this case, the production takes place directly on the basis of computer models made of formless or shape-neutral material by means of chemical and / or physical processes. No special tools are required that have saved the respective geometry of the workpiece, such as casting or embossing molds.

For a particularly effective mixing of the first and second fluids in the fluid mixing unit, it is provided according to a particularly preferred embodiment of the present invention that the fluid mixing unit has first fluid guide structures and second fluid guide structures, the first fluid guide structures and the second fluid guide structures being arranged at least partially alternately in the fluid mixing unit and are at least partially fluidly connected to one another. This embodiment is present in particular when a structured or ordered packing formed from corrugated plates is used. In this case, the “fluid guide structures” are understood to mean the spaces between the plates or the channels formed by the corrugation. The plates are also referred to below as "separators" between the fluid guide structures.

The fluid guide structures are in particular designed in the form of flat chambers which have the greatest extent in planes which are arranged parallel to the common plane of the fluid inlet already mentioned. The term “flat” designates an embodiment in which an extension in two spatial directions is significantly greater than an extension in a third spatial direction, in particular at least twice, three times, four times, five times, ten times, twenty times, fifty times or one hundred times. In the context of this embodiment of the present invention, the fluids are in particular divided into the horizontal flow channels (the corresponding fluid guide structures). Due to the alternating alignment of the flow channels per packing layer, there was a fluid dynamic interaction of adjacent flow channels, which leads to mixing within the packing geometry. Furthermore, when the gas streams emerge from the flow channels in this embodiment of the invention, further intensive post-mixing occurs.

Corresponding fluid guide structures can be formed in the aforementioned separators, which can in particular be structured and, for example, in the form of sheets. Corresponding separators can in particular have fluid passages, so that fluid can pass from one fluid guidance structure into the other fluid guidance structure and vice versa. The first and the second fluid are advantageously guided in countercurrent through the alternating fluid guide structures.

The fluid distribution units already mentioned are advantageously attached to the respective outlets from the fluid guide structures or are in fluid communication with this outlet. Thus, mixed fluid can be withdrawn via the fluid distribution units of the fluid mixing unit by means of the fluid guide structures. Appropriate structuring appropriate Separators, which define the fluid guidance structures, can promote the mixing and can be strengthened in certain areas.

As already mentioned, the first fluid guide structures and the second fluid guide structures in the fluid mixing unit are arranged in particular in planes that are perpendicular to the cylinder axis. In this way, the fluid flow can essentially be limited to the region of the fluid mixing unit and corresponding fluid does not pass unmixed into adjacent mass and / or heat exchange regions of the mass and / or heat exchange column. Mixed fluid can be removed from the fluid mixing unit in a defined manner and the corresponding areas can be distributed.

In general, it proves to be particularly advantageous in the context of the present invention if the fluid mixing unit, as already mentioned, has a structured or ordered packing, a structuring being formed in particular by the separators already mentioned or by other known measures from the field of column technology can. A structured or ordered packing need not necessarily have a homogeneous structuring in the entire fluid mixing unit, rather it is also possible to achieve particularly advantageous mixing in certain areas by suitably adapting the structuring. Structuring can be achieved, for example, in the form of structured metal sheets, but also by means of packing or irregular packing elements.

In order not to lay the column cross section excessively, it is provided according to a particularly preferred embodiment of the present invention that the fluid mixing unit, the first fluid guide unit and / or the second fluid unit on the outer shell of the mass and / or heat exchange column, i.e. are arranged in a peripheral area of the interior thereof.

For example, the fluid mixing unit, the first fluid guide unit and / or the second fluid guide unit can be applied to the outer shell or have a defined distance from it that is less than a distance from the cylinder axis already mentioned or the center point of the column cross section. For example, the distance from the outer shell to the units mentioned can represent at most a tenth, a fifth or a quarter of the distance to the cylinder axis or the center of the column cross section. The fluid distribution units, on the other hand, can in particular protrude into the interior of the column in order to be able to distribute fluid in a defined and particularly homogeneous manner over the entire column cross section.

As already explained several times, the present invention can be used in particular in mass and / or heat exchange columns which have one or more mass separation and / or heat exchange regions. Corresponding mass separation and / or heat exchange areas can have regular or irregular packings or other internals, as are known in principle from the field of column technology.

The present invention further relates to a method for processing a first fluid and a second fluid, the first fluid and the second fluid having different fluid properties. As already mentioned, such different fluid properties can represent, for example, different fluid compositions based on the components contained in each case and / or different fluid temperatures.

According to the invention, it is provided in a method of this type that a mass and / or heat exchange column is used, as previously explained in different configurations. In the context of the method according to the invention, the first fluid is fed into the interior of the mass and / or heat exchange column via the first fluid inlet and the second fluid via the second fluid inlet. The first fluid and the second fluid are at least partially mixed with one another in the fluid mixing unit to form a mixed fluid. For further features and advantages of the method according to the invention, reference is expressly made to the above explanations regarding the mass and / or heat exchange column and the respective configurations, since the method according to the invention also benefits from the respective features.

In particular, in the context of the present invention, the mixed fluid, which is formed in the fluid mixing unit by mixing the first fluid and the second fluid, can be distributed over at least one mass and / or heat exchange region of the mass and / or heat exchange column. In particular, the first fluid and the second fluid can be fed in in the liquid or gaseous state. In both cases, particularly advantageous mixing can be achieved by using the fluid mixing unit according to the invention.

The method according to the invention is particularly suitable for the mixing of fluids containing nitrogen and argon in different concentrations, for example for applications in the field of air separation.

The invention in the following with reference to the accompanying drawings explains which illustrate a preferred embodiment of the invention in the form of different representations.

list of figures

• 1 illustrates a mass and / or heat exchange column according to an embodiment of the invention in a pseudo perspective partial view.
• 2 illustrates a mass and / or heat exchange column according to an embodiment of the present invention in plan view.

The 3A and 3B show a fluid mixing unit according to an embodiment of the present invention in partial representation.

Detailed description of the drawings

Corresponding elements are given identical reference numerals in the figures and are not repeated and explained for the sake of clarity.

Detailed description of the drawings

In 1 is a mass and / or heat exchange column according to a particularly preferred embodiment of the present invention shown in a pseudo-perspective partial view and designated 100 in total. In 2 is the mass and / or heat exchange column 100 shown in cross section. The 1 and 2 show the same mass and / or heat exchange column 100 However, not all elements are illustrated in each case, for example because they are covered and / or omitted for reasons of clarity. The 1 and 2 are described below together.

The mass and / or heat exchange column 100 has a dotted outer shell 1 on that here in particular 1 is only shown in sections, and which a column interior 2 includes. Through the outer shell 1 lead a first fluid inlet 3 and a second fluid inlet 4 into the interior of the column 2 , the first fluid inlet 3 one in the column interior 2 arranged, here on the outer shell 1 applied first fluid guide unit 5 assigned. The second fluid inlet 4 is accordingly one of the outer shell here 1 applied second fluid control unit 6 assigned. The first fluid inlet is in the example shown 3 with the first fluid control unit 5 and the second fluid inlet 4 with the second fluid control unit 6 each in direct fluid communication. The fluid control unit 5 and 6 are illustrated here as curved, box-shaped chambers, but in principle any other configuration is also possible.

In the in the 1 and 2 The illustrated embodiment of the present invention is in the column interior 2 arranged and here also near the outer shell 1 the mass and / or heat exchange column 100 arranged fluid mixing unit 7 provided, in the example shown with the fluid guide units 5 and 6 connected is. The first fluid control unit 5 is thus set up via the first fluid inlet 3 into the interior of the column 2 fed first fluid of the fluid mixing unit 7 to supply and the second fluid guide unit is set up via the second fluid inlet 4 into the interior of the column 2 injected second fluid of the fluid mixing unit 7 be forwarded. The fluid mixing unit 7 is set up to mix the first and the second fluid at least partially.

The fluid mixing unit 7 points for mixing the first and the second fluid in the illustrated example alternately arranged first and second fluid guide structures 8th . 9 on, in the example shown by appropriate packing elements or structured separators 10 are formed. The dividers 10 For example, the mixing of the metal-favoring structures having structures can be formed. They are shown here for the sake of clarity and unstructured for the sake of simplicity.

After flowing through the fluid mixing unit 7 lie the two fluids that are above the first fluid inlet 3 and the second fluid inlet 4 in the mass and / or heat exchange column 100 were fed in in the form of an at least partially homogeneous mixed fluid. As already mentioned, in the fluid mixing unit 7 however, only premixing is carried out.

Corresponding at least partially mixed fluids can then be added here 11 referred to, for example, provided with corresponding additional structures fluid distribution units on mass and / or heat exchange areas, not shown, of the mass and / or heat exchange column 100 applied and in particular homogeneously distributed over the entire cross section. A feed line from the fluid mixing unit 7 can by means of appropriate structures 12 that only in 2 are illustrated. The fluid distribution units 11 can in a plane above or, as illustrated here, below the fluid mixing unit and the fluid guide units 5 and 6 be arranged.

How especially out 2 can be seen, the fluid guide units 5 and 6 on the outer shell 1 the mass and / or heat exchange column 100 be created in order to achieve the lowest possible laying of the column cross-section.

In the 3A and 3B a fluid mixing unit according to an embodiment of the invention as shown previously with 7 is shown in partial representation.

As mentioned, the present invention can be in the fluid mixing unit 7 in particular operate a structured or ordered package of corrugated and optionally further structured and / or perforated metal plates. This case is in the 3A and 3B illustrated. The fluid guide structures 8th . 9 represent the spaces between the corresponding plates, i.e. the separators 10 , or the channels formed by the corrugation of the plates. For better illustration, the 3A the separators 10 with a space between them (typically not used in practice), whereas as shown in FIG 3B the separators lie directly on top of one another (as is typically the case when used in the context of the present invention).

As mentioned, the corrugation of the separators can 10 ribs formed at different angles relative to a reference direction, in particular the central axis of a mass and / or heat exchange column, be arranged, the ribs of adjacent separators 10 as in the 3A and 3B illustrated, typically stand at an angle of 90 ° to each other. Corresponding ribs can, as is not illustrated separately here, in a first and a second section of a respective separator 10 include different angles with the central axis of the column. For reasons of clarity, the 3A and 3B an optional further structuring of the isolators 10 and does not illustrate an optional punch.

It should be emphasized again that the present invention is not limited to the use of structured or ordered packings of corrugated and optionally further structured and / or perforated metal plates, but rather all of the previously explained and possibly also further, not explained structuring in the fluid mixing unit 7 can operate.

Claims (15)

Mass and / or heat exchange column (100) with an outer shell (1), which includes a column interior (2), with a first fluid inlet (3) leading through the outer shell (1) into the column interior (2) and with one through the outer shell (1) into the column interior (2) leading second fluid inlet (4), the first fluid inlet (3) being arranged in the column interior (2) and the second fluid inlet (4) being arranged in the column interior (2). arranged second fluid guide unit (6) is assigned, characterized in that a fluid mixing unit (7) arranged in the column interior (2) is provided, the first fluid guide unit (5) being set up to flow into the column interior via the first fluid inlet (3) (2) at least partially feed the first fluid fed to the fluid mixing unit (7), the second fluid guide unit (6) being set up to feed a fluid into the knockout via the second fluid inlet (4) inner fluid (2) fed second fluid at least partially to the fluid mixing unit (7), and wherein the fluid mixing unit (7) is set up to at least partially mix the first and the second fluid with each other. Mass and / or heat exchange column (100) after Claim 1 , in which the fluid mixing unit (7) is assigned one or more fluid distribution units (11) which are set up to mix a mixed fluid formed in the fluid mixing unit (7) by mixing the first fluid and the second fluid or parts thereof in a region of the column interior ( 2) distribute. Mass and / or heat exchange column (100) after Claim 1 or 2 , in which the interior of the column (2) is formed at least in one section in the form of a cylinder with a cylinder axis (A). Mass and / or heat exchange column (100) after Claim 3 , in which the first fluid inlet (3) and the second fluid inlet (4) are arranged in a common plane (E) which is perpendicular to the cylinder axis (A). Mass and / or heat exchange column (100) according to one of the preceding claims, in which the fluid mixing unit (7) has an ordered packing. Mass and / or heat exchange column (100) after Claim 4 , in which the fluid mixing unit (7) has first fluid guide structures (8) and second fluid guide structures (9), the first fluid guide structures (8) and the second fluid guide structures (9) being arranged at least partially alternatingly with one another in the fluid mixing unit (7) and at least partially fluidly are interconnected. Mass and / or heat exchange column (100) after Claim 6 , in which the first fluid guide structures (8) and the second fluid guide structures (9) are delimited from one another by structured separators (10). Mass and / or heat exchange column (100) after Claim 6 or 7 , in which the first fluid guide structures (8) and the second fluid guide structures (9) are arranged in planes which are perpendicular to the cylinder axis. Mass and / or heat exchange column (100) according to one of the preceding claims, in which the fluid mixing unit (7) has a structured packing. Mass and / or heat exchange column (100) according to one of the preceding claims, in which the fluid mixing unit (7), the first fluid guide unit (5) and / or the second fluid guide unit (6) are arranged on the outer shell (1). Mass and / or heat exchange column (100) according to one of the preceding claims, which further comprises one or more mass separation and / or heat exchange areas. Process for the technical treatment of a first fluid and a second fluid, the first fluid and the second fluid having different fluid properties, characterized in that a mass and / or heat exchange column (100) according to one of the preceding claims is used, wherein the first fluid via the first fluid inlet (3) and the second fluid via the second fluid inlet (4) into the interior (1) of the mass and / or heat exchange column (100), and wherein the first fluid and the second fluid in the fluid mixing unit ( 7) are at least partially mixed with one another to form a mixed fluid. Procedure according to Claim 12 , in which the mixed fluid is distributed to at least one mass and / or heat exchange area of the mass and / or heat exchange column (100) after its formation. Procedure according to Claim 12 or 13 , in which the first fluid and the second fluid are fed in a liquid or gaseous state. Procedure according to one of the Claims 12 to 14 , in which the first and the second fluid have nitrogen and argon in different concentrations.

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