JP3080419B2 - Horizontal multi-stage adsorption separation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a horizontal multistage adsorption / separation apparatus, and more particularly to a horizontal multistage adsorption / separation apparatus suitably used as a simulated moving bed multistage adsorption / separation apparatus.

[0002]

2. Description of the Related Art In order to separate a mixture which is difficult to separate by distillation, a multistage adsorption separation method of a simulated moving bed system is known. In this separation method, four operations including a desorption operation, a concentration operation, an adsorption operation, and a desorbent recovery operation are performed simultaneously and continuously. The adsorption separation technique using such a simulated moving bed includes, for example, separation of a xylene isomer mixture (Japanese Patent Publication No. 42-15681, Japanese Patent Publication No. 50-10517).
No.) and separation of diisopropylnaphthalene (Japanese Unexamined Patent Publication No.
172929). FIG. 1 shows a principle diagram of adsorption separation by a simulated moving bed system. In this figure,
Reference numerals 1 to 16 denote adsorption chambers composed of an adsorbent packed layer, which are connected to each other. Reference numeral 17 denotes a desorbent supply line, 18 denotes an extract extraction line, 19 denotes a raw material supply line, 20 denotes a raffinate extraction line, and 21 denotes a recycle line. Reference numeral 22 denotes a pump. Adsorption chambers 1 to 16 shown in FIG.
In the arrangement state of the lines 17 to 21, the desorption operation is performed in the adsorption chambers 1 to 3, the concentration operation is performed in the adsorption chambers 4 to 8, the adsorption operation is performed in the adsorption chambers 9 to 13, and the desorbent recovery operation is performed in the adsorption chambers 14 to 16, respectively. Is being done.

In such a simulated moving bed type multistage adsorption separation, each supply and withdrawal line is moved by one valve in the liquid flow direction at regular intervals by operating a valve. Therefore, in the next arrangement state of the adsorption chambers, the desorption operation is performed in the adsorption chambers 2 to 4, the concentration operation is performed in the adsorption chambers 5 to 9, the adsorption operation is performed in the adsorption chambers 10 to 14, and the desorbent recovery operation is performed in the adsorption chambers 15 to 1. Will be done. By performing such operations sequentially and continuously, the adsorption separation treatment of the liquid mixture by the simulated moving bed method is achieved.

An apparatus used in such a multi-stage adsorption separation method using a simulated moving bed system has a structure in which adsorbent packed beds are connected. To perform the adsorption separation efficiently and economically, The development of the device is an important technical issue. Such an apparatus generally has a structure in which a large number of adsorbent-filled containers are sequentially connected via a connecting pipe. In this device, however, a large number of separately formed adsorbent-filled containers are used. Is used, the efficiency of the device is low, the cost of the device is high, the pressure loss and the heat loss of the fluid flowing through the connecting pipe are increased, and it cannot be said that the device is industrially advantageous.

According to JP-A-58-79534,
An adsorption separation apparatus having a structure in which a large number of adsorbent packed beds are arranged in multiple stages in one large cylindrical container is shown. However, in the case of this device, the arrangement of the adsorbent packed bed is complicated, and the arrangement of the adsorbent packed bed involves great difficulty,
There is a problem that it takes a long time to dispose the adsorbent, and it also causes a great difficulty in replacing the adsorbent, resulting in an increase in apparatus cost.

[0006]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems found in the prior art, and has a simple structure, high device efficiency, low device cost, and easy adsorbent filling and withdrawal. An object of the present invention is to provide a horizontal multi-stage adsorption / separation apparatus capable of performing adsorption / separation efficiently and economically.

[0007]

Means for Solving the Problems The present inventors have conducted intensive studies to solve the above-mentioned problems, and as a result, have completed the present invention.

That is, according to the present invention, there is provided a horizontal multi-stage adsorption / separation apparatus having a structure in which an adsorbent is filled in a multi-stage manner through a dispersion plate in a long cylindrical body, wherein the adsorbent is partitioned by the dispersion plate. The upper wall of the tubular body surrounding the packed bed (unit adsorbent packed bed) has an opening sealed by a detachably mounted lid, and the dispersion plate is formed on both plate surfaces. Opening and
A fluid passage A communicating the openings,
And a fluid passage B extending in the direction of the peripheral wall of the cylindrical body and communicating with a conduit penetrating the peripheral wall of the cylindrical body.

Further, according to the present invention, there is provided a horizontal multistage adsorption / separation apparatus having a structure in which a plurality of cylindrical bodies each having an opening at both ends and filled with an adsorbent are connected via a dispersion plate. The body has an opening closed by a lid detachably mounted on the upper wall thereof, and the dispersion plate has openings formed on both sides of the plate and the peripheral end surface of the plate, and both sides of the plate. A horizontal multistage adsorption / separation apparatus comprising: a fluid passage A communicating with the formed opening; and a fluid passage B communicating with the fluid passage A and communicating with the opening formed on the peripheral end surface of the plate. Is done.

FIG. 2 is an overall explanatory view of the horizontal multistage adsorption / separation apparatus of the present invention. In FIG. 2, reference numeral 50 denotes a long cylinder integrally formed, which is partitioned by a dispersion plate 30 and formed in a plurality of filling tanks 55. Each filling tank 55 is filled with an adsorbent. Each tank filled with the adsorbent forms a unit adsorbent packed layer. In each filling tank 55, an opening is provided in the upper wall of the cylindrical body surrounding the unit adsorbent packed layer, and the opening is
It is hermetically closed by a lid 51 that is detachably installed.
A cylindrical body 52 is erected from the periphery of the opening, and the upper end opening is closed by a plate 53. The plate body 53 is connected to the lid body 51, and the plate body 53 is lifted upward and removed from the upright cylinder 52, whereby the lid body 51 can be removed from the cylindrical body opening. The dispersion plate 30 has a fluid passage A in the plate body for moving the fluid in the axial direction of the cylinder, and a fluid passage B communicating with the fluid passage A and extending in the circumferential direction of the cylinder. The fluid passage B is connected to a conduit 65 provided through the peripheral wall of the cylinder 50 to discharge the fluid flowing through the fluid passage A to the outside of the cylinder, or to provide the fluid from outside of the cylinder in the axial direction of the cylinder. Fluid passage A
Used to introduce

At both ends of the long cylindrical body 50, sealing plates 60,
Numerals 61 are provided, and conduits 62, 63 communicating with the inside of the cylinder are respectively attached to these sealing plates. FIG. 3 is an explanatory sectional view of an apparatus portion including the dispersion plate 30. The dispersion plate 30 has a first concave portion 31 formed on one plate surface and a second concave portion 32 formed on the other plate surface,
A hollow portion 33 is formed at the center of the plate.
The hollow portion 33 has an opening 35 formed on the surface of the first concave portion 31.
And a fluid passage 34, while communicating with an opening 35 formed in the surface of the second recess 32 via the fluid passage 34. The fluid passage 34 including the hollow portion 33 forms a fluid passage A for moving the fluid in the axial direction of the cylindrical body.

As can be seen from FIG.
Four pieces are respectively provided on the surface of the concave portion 31 and on the surface of the second concave portion 32. The opening 35 on the surface of the first concave portion 31 and the second
The number of the openings 35 on the surface of the concave portion 32 is not necessarily four, but may be two to three, or may be five or more. The opening 35 is formed by connecting the cross section of the cylinder 50 to the cylinder 5.
It is preferable to arrange them so as to be located at substantially the center of a sector that is equally divided by radiation emitted from the center of 0. Also,
The number of the openings 35 is preferably one or more per 0.05 m ² in cross-sectional area of the cylindrical body 50.

The hollow portion 33 communicates with an opening 37 (shown in FIG. 4) formed in the peripheral end face of the plate via a fluid passage 36. This fluid passage 36 extends in the direction of the peripheral wall of the cylinder,
A fluid passage B for introducing a fluid from the outside into the hollow portion 33 constituting a part of the fluid passage A or for leading a fluid passing through the hollow portion 33 to the outside is formed. Although the number of the openings 37 may be one, in a simulated moving bed type adsorption separation apparatus,
As shown in FIG. 4, the number is preferably four. That is, in the simulated moving bed type multi-stage adsorption separation apparatus, as shown in FIG. 1, a desorbent supply line 17, an extract extraction line 18, a raw material supply line 19, and a raffinate extraction line 20 are provided. However, it is preferable that four openings 37 are provided in advance on the peripheral edge of the plate so as to connect to these lines.

Each opening 3 formed in the peripheral end surface of the dispersion plate 30
The pipe 7 is connected to the pipe 7 by penetrating the peripheral wall of the cylindrical body 50. The conduit 65 is fixed to the peripheral wall of the cylindrical body 50 by welding. The dispersion plate 30 has a cylindrical body 50 at its peripheral end surface.
And the fluid is prevented from flowing between the peripheral end surface of the dispersion plate and the inner wall surface of the cylindrical body 50. In this case, a sealing material can be interposed between the peripheral end surface and the inner wall surface of the cylinder. Further, the dispersing plate 30 is placed on the periphery of the cylindrical body 5.
It can also be joined to the inner wall surface by welding.

The first concave portion 31 and the second concave portion 3 of the dispersion plate 30
A perforated plate 40 having a large number of through-holes 41 is laminated on each surface of No. 2. FIG. 5 is an explanatory view of the perforated plate. It is preferable that the number of through holes 41 formed in the perforated plate is as large as possible.
The arrangement of the through holes provided in the perforated plate is preferably such that a triangle connecting three adjacent through holes is an equilateral triangle. The diameter of the through hole 41 is 1 to 10 mm, preferably 2 to 10 mm.
5 mm, and the pitch of the through holes is 10 to 50 mm, preferably 20 to 30 mm. The number n of the through holes is preferably determined so that the following formula is satisfied, where D is the inner diameter of the cylindrical body 50 and P is the pitch of the through holes. However, in this equation, N = D / 2P.

[0016]

(Equation 1)

A screen member 42 is laminated on the surface of the perforated plate 40. The screen member is for preventing the through holes 41 of the porous plate from being closed by the adsorbent particles, and a wire mesh or a porous plate is used. The screen member 42 and the perforated plate 40 are fixed on the dispersing plate 30 by bolting or the like at the peripheral edge in a laminated state.

The dispersing plate 30 can be composed of one plate or a laminate of a plurality of split members. The dispersion plate and the perforated plate are usually made of metal, but may be a ceramic plate or a resin plate depending on the case. The structure of the dispersion plate 30 can be variously changed, and examples of the changes are shown in FIGS. As shown in FIGS. 3 and 6, the structure of the dispersion plate 30 is preferably symmetrical with respect to the fluid passage 36 communicating the opening 37 on the peripheral surface of the plate and the hollow portion 33, as shown in FIGS. As shown in FIG. In the dispersion plate 30 shown in FIGS. 7 to 9, it is preferable that the fluid flows from the right side (the first concave surface side) to the left side (the second concave surface side).

The recesses 31 and 32 are not necessarily provided in the dispersion plate 3.
It does not need to be provided at 0, and it may be provided on the surface of the perforated plate 40 on the dispersion plate 30 side. Further, the perforated plate 40 is omitted,
The screen member 42 can be directly laminated on the surface of the dispersion plate 30, or a wire mesh or a fiber layer (glass fiber fabric, carbon fiber fabric, or the like) can be interposed between the dispersion plate 30 and the perforated plate 40. In these cases, the provision of the concave portions 31 and 32 can be omitted.

FIG. 10 is an explanatory sectional view of a sealing plate 60 for closing the stone end opening of the cylindrical body 50. The sealing plate 60 has a fluid passage C for moving a fluid in the plate body in the axial direction of the cylinder.
Having. That is, as in the case of the dispersion plate 30, a concave portion 70 is provided on the inner surface of the sealing plate 60, and a plurality of openings 71 are provided in the concave portion.
Communicates with an opening 74 formed on the outer surface of the sealing plate 60 via fluid passages 72 and 73. The conduit 62 is connected to the opening 74. As in the case of the dispersion plate 30, the through-hole 41 is formed on the surface of the concave portion 70 of the sealing plate 60.
The perforated plate 40 and the screen member 42 are laminated in that order, and are fixed to the periphery of the sealing plate 60.

FIG. 11 is an explanatory sectional view of a sealing plate 61 for closing the left end opening of the cylindrical body 50. The sealing plate 61 is provided with a fluid passage C for moving fluid in the axial direction of the cylindrical body in the plate body.
Having. That is, as in the case of the dispersion plate 30, a concave portion 70 is provided on the inner surface of the guide plate 61, and a plurality of openings 71 are provided in the concave portion.
Communicates with an opening 74 formed on the outer surface of the sealing plate 61 via fluid passages 72 and 73. The conduit 63 is connected to the opening 74. In the surface of the concave portion 70 of the sealing plate 61, as in the case of the dispersion plate 30, the through hole 41 is formed.
The perforated plate 40 and the screen member 42 are laminated in that order, and are fixed to the periphery of the sealing plate 61. Conduit 6
A plurality (four) of branch pipes 64 are connected to 3.
The branch pipe 64 is for discharging a fluid flowing in the conduit 63 to the outside, or conversely, for introducing a fluid into the conduit 63 from the outside. The sealing plates 60, 6
1 is, as shown with respect to the dispersion plate 30,
Various modifications are possible, and a structure in which the branch pipe 64 is housed inside the sealing plate 61 may be adopted.

FIG. 12 is a sectional view for explaining the attachment of the lid 51 provided at the opening of the upper wall of the cylindrical body surrounding the unit adsorbent packed layer. In this figure, reference numeral 52 denotes a tubular body that stands upright on the periphery of the upper wall opening of the tubular body, and the lower end thereof is fixed to the outer wall surface of the tubular body 50 by welding. In this vertical cylinder 52,
A lid 51 for sealing the opening of the cylindrical body 50 is detachably provided. That is, the lid 51 is formed as the bottom surface of the inner cylinder 54 having the plate 53 at the upper end, and the lid 51 and the plate 53 are connected to the pressure gauge tube 75. The upper end surface of the vertical cylinder 52 and the lower surface of the plate body 53 are in close contact with each other, so that the fluid in the cylindrical body 50 does not flow out.

The opening provided in the upper wall of the cylinder facilitates filling and withdrawal of the adsorbent, and inspects the internal state of the cylinder, in particular, inspects the state of the screen member, the perforated plate, and the dispersion plate. belongs to. In the case of industrial-scale equipment, workers can enter and exit through this opening, so the worker must enter the inside of the cylinder directly and inspect, repair, or replace those screen members, perforated plates and dispersion plates. Can be. In addition, by providing an opening in the cylindrical body and closing the opening with a removable lid, the entire space inside the cylindrical body can be densely filled with the adsorbent, so that the adsorption separation efficiency per unit space A good adsorbent packed layer can be obtained.

The structure of the multistage adsorption / separation apparatus of the present invention can be appropriately changed. For example, in the one shown in FIG. 2, a long cylindrical body 5 integrally formed is used.
0 is used, and the dispersion plate 30 is disposed inside the cylinder. However, it is not always necessary to adopt such a structure. The device of the present invention can be obtained in the same manner by sequentially connecting them with interposition. FIG. 13 is an overall explanatory view of the device in this case. In the reference numerals shown in FIG. 13, the same reference numerals as those shown in FIG. 2 have the same meaning.
In this figure, reference numeral 50 'denotes a cylindrical body opened at both ends, and the adsorbent-filled layer filled in the filling tank 55 formed by the cylindrical body 50' and the dispersion plate forms a unit adsorbent-filled layer. 2 and 13, the sealing plate 61 at the left end may have the same structure as the dispersion plate 30. In this case, the fluid flowing in the axial direction of the cylindrical body is extracted to the outside via a conduit 65 (see FIG. 3) connected to an opening 37 formed in the peripheral end face of the dispersion plate. Since the fluid can be mixed with the fluid flowing from the outside through the conduit 65 in the axial direction of the cylinder, the conduit 64 shown in FIG. 11 can be omitted. Further, in the apparatus of the present invention, the two apparatuses can be connected in series via a pipe in order to increase the number of stages of the adsorbent filling tank.

In the apparatus of the present invention, the length (L) of the cylindrical portion surrounding the unit adsorbent packed layer is 20 cm or more, preferably 40 cm or more for uniform dispersion of the fluid flowing through the adsorbent packed bed. However, if the length is too long, the dispersibility of the fluid flowing through the adsorbent-packed layer deteriorates, and the pressure loss also increases. Therefore, the length is preferably 2 m or less, preferably 1 m or less. The inner diameter (D) of the cylinder can be arbitrarily increased according to the capacity of the apparatus, but on the other hand, there is a limit to reducing it, and if it is too small, the dispersibility of the fluid flowing through the packed bed deteriorates, Also, the pressure loss increases. Therefore, in the case of the present invention, it is preferable that the inner diameter (D) of the cylindrical body is L / D of 2 or less, preferably 1 or less. By defining the L / D in such a range, the state of the fluid flowing through the adsorbent packed bed is maintained in a plug flow state, the dispersion of the fluid is made uniform, and the contact between the fluid and the adsorbent is improved. Can be held.

In the apparatus of the present invention, the number of the filling tanks formed by the dispersion plate 30 and the cylindrical body 50 or 50 'is usually 10 to 30 or more, and the raw material to be subjected to the adsorption separation treatment and the separated material are separated. It is appropriately determined according to the purity of the product.

As the adsorbent, conventionally known adsorbents such as silica gel and zeolite are used. As the zeolite, X-type or Y-type zeolite is preferably used. In addition, these zeolites, as cationic species, sodium, lithium, beryllium, potassium, magnesium, calcium, barium, strontium,
Can contain cations of metals such as lanthanum,
Further, for example, it can contain lead, zirconium, yttrium, and the like. These adsorbents are appropriately selected according to the type of the raw material to be subjected to the adsorption treatment and the target product.

The horizontal multistage adsorption / separation apparatus of the present invention comprises four conduits 65 connected to the peripheral end openings 37 of the respective dispersion plates 30.
And each of the four branch pipes 64 coupled (see Figure 11) to the conduit 63 of the apparatus leftmost sealing plate, removal <br/> Chakuzai supply line 17 shown in FIG. 1, extract draw-out line 18 ,
By connecting the raw material supply line 19 and the raffinate extraction line 20 and connecting the conduits 62 and 63 provided at both ends of the apparatus to a circulation pipe (recycle line) 21 including a circulation pump, a simulated moving bed multi-stage adsorption separation apparatus is obtained. used. In FIG. 2, the fluid flows from right to left, and the fluid discharged from the leftmost conduit 63 is circulated through the recycle line 21 to the rightmost conduit 62. In the multi-stage separation device operated as the simulated moving bed system, the valve operation is performed at fixed time intervals, and each supply line and extraction line is moved by one adsorbent filling tank 55 in the fluid flow direction. Is done. By performing such a valve operation, a specific component is extracted from the raw material mixture via the extract extraction line 18 (see FIG. 1).

[0029]

The device of the present invention has a structure in which unit adsorbent packed layers are stacked in multiple stages via a dispersion plate, so that the overall structure of the device becomes very simple and the adsorbent filling rate is increased. In addition, the efficiency of the apparatus is increased, the overall size is reduced, and the apparatus cost is significantly reduced. In the apparatus of the present invention, in particular, since the opening is provided in the upper wall of the cylindrical body surrounding the unit adsorbent packed layer, the adsorbent can be filled, withdrawn, and replaced with good workability for each filling tank. it can. The apparatus of the present invention has a great advantage in that the filling of the adsorbent can be performed quickly, so that the problem of moisture absorption and contamination during the operation of filling the adsorbent can be avoided. Further, since the apparatus of the present invention is of a horizontal type, the number of the filling tanks can be easily increased or decreased as necessary. Furthermore, since the device of the present invention has a structure in which each unit adsorbent packed layer is laminated via a dispersion plate, the distance between adjacent unit adsorbent packed layers is significantly reduced, and as a result,
The pressure loss of the fluid flowing into and out of each unit adsorbent packed bed is reduced, the pressure-resistant design of the apparatus and the required power are remarkably reduced, and the heat loss of the apparatus and piping is prevented, which is extremely advantageous in terms of thermal economy.

The apparatus of the present invention comprises a mixture of a plurality of components which are difficult to separate by distillation, such as a mixture of xylene isomers, a mixture of xylene and ethylbenzene, and a mixture of a saturated fatty acid or an ester thereof and an unsaturated fatty acid or an ester thereof. It is advantageously applied to the separation of specific components from mixtures, mixtures of paraffins and olefins, mixtures of inparaffins and normal paraffins, and the like. Also, the device can be operated under liquid phase conditions or simmer conditions, but is usually operated under liquid phase conditions.

[0031]

Next, the present invention will be described in more detail with reference to examples. Example A hole having a diameter of 2 mm was formed at a pitch of 20 mm on both sides of a metal dispersion plate having a thickness of 80 mm having the structure shown in FIG. 3 (each of the fluid passages formed in the dispersion plate has a diameter of 16 mm). A metal perforated plate and a 60-mesh wire net formed using a stainless steel wire are sequentially laminated and fixed, and on one surface of the dispersion, a metal plate having a conduit penetrated in the center is laminated and fixed. Thus, a plate was formed. This plate-like body is 50 cm long (L) and 100 cm inside diameter (D).
Both ends are opened and installed at both ends of a cylindrical body having an opening on the upper wall to close the opening. From the upper opening, while applying a load of 50 kg, the representative average particle diameter is 0.8 mm. After the silica particles were filled, the upper opening was closed to form a horizontal cylindrical adsorbent packed layer. Next, a conduit attached to an outer metal plate of a plate-like body (an opening formed on a peripheral end surface of a dispersion plate constituting the plate-like body is closed) installed at one end of the horizontal cylindrical adsorbent filling tank. From
Water was introduced into the vessel at a flow rate of 6 m ³ / hr at room temperature, and attached to the outer metal plate of the other plate (the opening formed on the peripheral end surface of the dispersion plate constituting this plate was closed). Drained from the yard. At this time, a pulse response curve was measured by injecting a 2% aqueous solution of sodium chloride as a pulse tracer into the water flowing in the supply water conduit at regular time intervals, and observing the change in the electrical conductivity of the effluent. . As a result,
The standardized concentration reached 10 with respect to the standardized elution amount of 1 (130 as the number of complete mixing tanks), and uniform liquid dispersion was confirmed.
At this time, the pressure loss before and after the adsorbent filling tank was 0.18.
kg / cm ² .

COMPARATIVE EXAMPLE In Example 1, the pulse response curve was extremely gentle (normalized concentration of 1 or less with respect to standardized elution of 1) only when the dispersion plate contained in the plate was removed from the plate-like body. No liquid dispersion was obtained.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating the principle of a simulated moving bed multistage adsorption separation method.

FIG. 2 is an overall explanatory view of an apparatus of the present invention using a long cylinder integrally formed.

FIG. 3 is an explanatory sectional view of an apparatus portion including a dispersion plate.

FIG. 4 is a sectional view taken along line BB ′ in FIG. 3;

FIG. 5 is a sectional view taken along the line AA ′ in FIG. 3;

FIG. 6 is an explanatory sectional view of a modified example of the dispersion plate.

FIG. 7 is an explanatory sectional view of another modified example of the dispersion plate.

FIG. 8 is an explanatory sectional view of still another modification of the dispersion plate.

FIG. 9 is an explanatory sectional view of still another modified example of the dispersion plate.

FIG. 10 is an explanatory sectional view of a sealing plate provided at one end of the device of the present invention.

FIG. 11 is an explanatory sectional view of a sealing plate provided at the other end of the device of the present invention.

FIG. 12 is an explanatory diagram of attachment of a lid to an opening of an upper wall of a cylindrical body.

FIG. 13 is an overall explanatory view of an apparatus of the present invention using a short cylindrical body having both ends opened.

[Explanation of symbols]

 30 Dispersion plate 34, 36 Fluid passage 35, 37 Opening 40 Perforated plate 42 Screen member 50, 50 'Cylindrical body 51 Lid 55 Adsorbent filling tank 60, 61 Sealing plate 62, 63, 65 Pipe

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Yoshimi Shirato 2-1-1, Tsurumichuo, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture Inside Chiyoda Chemical Works (72) Inventor Mitsunori Shimura Tsurumi-chuo, Tsurumi-ku, Yokohama-shi, Kanagawa Prefecture Chome 12-1 Chiyoda Chemical Works, Ltd. (72) Inventor Akimoto Atsushi 2-12-1, Tsurumi Chuo, Tsurumi-ku, Yokohama, Kanagawa Prefecture Chiyoda Chemical Works, Ltd. (72) Inventor Masayoshi Notoya Yokohama, Kanagawa Prefecture 2-12-1 Tsurumi Chuo, Tsurumi-ku Chiyoda Chemical Works Construction Co., Ltd. (56) References JP-A-53-51179 (JP, A) JP-B-41-4093 (JP, B1) (58) Fields surveyed (58) Int.Cl. ⁷ , DB name) B01D 15/00 101 B01J 8/04 301

Claims (10)

(57) [Claims] 1. A horizontal multi-stage adsorption / separation apparatus having a structure in which an adsorbent is filled in a multi-stage manner through a dispersion plate in a long cylindrical body formed integrally, wherein the adsorbent is divided by the dispersion plate. The upper wall of the cylindrical body surrounding the layer (unit-adsorbent-filled layer) has an opening sealed by a lid that is detachably installed, and the dispersion plate is provided in the plate inside the plate. And a fluid passage A communicating the openings, and a fluid passage B communicating with the fluid passage and extending in the direction of the peripheral wall of the cylindrical body and connecting a conduit penetrating the peripheral wall of the cylindrical body.
A horizontal type multi-stage adsorption / separation apparatus characterized by having: 2. The apparatus according to claim 1, wherein a screen member is laminated on the surface of the dispersion plate via a perforated plate. 3. The apparatus according to claim 2, wherein the surface of the dispersion plate is formed in a concave portion. 4. The screen member is a wire mesh.
Or the device of 3. 5. The apparatus according to claim 1, wherein the ratio (L / D) of the length (L) to the inner diameter (D) of the cylindrical body surrounding the unit adsorbent packed layer is 2 or less. . 6. A horizontal multistage adsorption / separation apparatus having a structure in which a plurality of cylindrical bodies each having an opening at both ends and filled with an adsorbent are connected via a dispersion plate, wherein each cylindrical body is provided on an upper wall thereof. The dispersion plate has an opening closed by a lid that is detachably mounted, and the dispersion plate communicates with an opening formed on both surfaces of the plate and a peripheral end surface of the plate, and an opening formed on both surfaces of the plate. And a fluid passage B communicating with the fluid passage A and communicating with an opening formed in the peripheral end surface of the plate. 7. The apparatus according to claim 6, wherein a screen member is laminated on the surface of the dispersion plate via a perforated plate. 8. The apparatus according to claim 7, wherein a surface of said dispersion plate is formed in a concave portion. 9. The screen member is a wire mesh.
Or the device of 8. 10. The apparatus according to claim 6, wherein the ratio of the length (L) to the inner diameter (D) of the cylindrical body is 2 or less.