JPS5976503A - Fluid collector of improved type - Google Patents

Abstract

PURPOSE:To provide a titled device which is simple in construction and provides less turbulence to fluid by forming the face B of the two faces A, B in a cavity of a part which makes the space between the two faces increasingly narrower toward the outside circumference and a part having the construction wherein the space between the two faces on internal side of said part is constant. CONSTITUTION:The face B of the faces A and B in the cavity adjacent to a fluid inlet and outlet 1 of a fluid collector to be installed in a packed column is constituted of a part where the space between the two faces is made increasingly narrower toward the outside circumferential surface and the part on the internal side thereof where the space between the two faces is constant. The space between the two faces in the outside circumferential part is of the min. value in the cavity and the value thereof is preferably >=0.5mm.. In the figure, 2 denotes the face A and 3 the face B, respectively. Since the part where the space in the cavity is zero is eliminated in the outside circumferential part as well, the flow of liquid in the outside circumferential part is made smooth and the turbulence of flow to be applied on the fluid in the cavity is made less.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a fluid separation device installed in a packed column.

When fluid flows into a packed tower or flows out of a sales floor tower, the fluid is distributed uniformly and quickly in the radial direction of the packed tower, without any turbulence, before the incoming liquid comes into contact with the packing material. 1) A device is required to collect the liquid that has come into contact with the filler quickly and with minimal disturbance.

Also, in particular, separation of substances by chromatography - J
In a packed column intended for fluorine treatment, it is important to install the above-mentioned fluid separation equipment because the turbulence of the fluid greatly reduces the separation efficiency.

However, the conventional fluid separation device has a multiple structure.
There was a problem that there were many single parts, and the turbulence of the fluid generated in those parts was large. In addition, for those with a simple structure, the distribution of fluid is 1. ■Not something you can walk on,
There is a problem in that there is a large time delay in the flow of fluid within the fluid concentrator. For this reason, for example, in "Fluid Output I", the fluids of interest that have different contact times with the packing material or the fluids of interest that have different contact times with other fluids flowing in the packed column are mixed. The performance of the upper packed column was decreasing. In addition, particularly in packed columns intended for separating substances by chromatography, the above phenomenon causes significant turbulence in the fluid, contributing to a decrease in separation efficiency.

The present invention has been developed in order to develop a fluid concentrator that has a simpler and cheaper structure than conventional ones, and that causes less disturbance to the fluid than conventional ones. As a result, we have arrived at the present invention.

That is, the fluid concentrator of the present invention has a void inside thereof, and has two surfaces forming the void: an inlet surface through which the fluid passes, but a partition plate through which the filler does not pass, or a porous hole for supporting it. Surface B, which is the end face of the gap and is closest to the fluid inlet/outlet: The solid part to which the fluid inlet/outlet is connected], and the structure of the surface facing the Δ plane is from the fluid inlet/outlet within a range of 95% or more of the representative cross-sectional area of the void. The inclination of the B plane, which is cut to the ζΔ plane, changes at least once in all directions up to the outer periphery, and the slope of the A plane and B plane change at least once.
It is characterized by the fact that the distance between the surfaces is at least increased - there are no gaps.

Here, the "representative cross-sectional area of the void" refers to the largest back cross section of the void parallel to the cross section of the filling (h).

However, if the cross-sectional area of the void is larger than the cross-sectional area of the packed tower, the cross-sectional area of the packed tower is taken as the representative cross-sectional area of the void. In addition, the partition plates used to keep the packing inside the tower can be considered as slopes made of porous materials, perforated plates, wire mesh, various fabrics, metals, and sintered bodies of organic and inorganic materials. etc. Furthermore, the method of maintaining the gap includes the method using the partition plate itself, the method of installing a perforated plate to support the partition plate, or the method of installing a perforated plate to support the partition plate, or using a method with a coarse mesh that hardly affects the flow of fluid in the gap. wire mesh,
A method is to install a plate made of porous material to support the partition plate, a method to install beads with a particle size that does not affect the flow of fluid in the gap, a method to install a column in the gap to support the entrance surface. There are methods etc.

When a structure like the fluid concentrator of the present invention is adopted, the interval between the surfaces A and 82 becomes smaller near the outer periphery of the gap where the fluid flow rate is lower than near the fluid inlet/outlet, so the fluid flow velocity becomes small. The UJ function is to reduce the time delay in the flow of the bulk material at the outer periphery.

In addition, compared to the case where the B surface has only one inclination and has a taper such that the distance between both surfaces of B increases as it approaches the center, the distance between the A and 132 surfaces near the center is reduced. When the fluid separating device of the present invention is installed between the two surfaces, it is possible to reduce the portion where the distance between the two surfaces A and B is extremely small near the outer periphery, thereby reducing the portion where the fluid has difficulty flowing. This makes it possible to realize a smooth flow.

A more preferable structure of the fluid separating device of the present invention is as follows, and by adopting such a structure, it is possible to manufacture the fluid separating device more easily and at low cost. The structure is A in the cavity, A as the B side of the 82 faces approaches the outer periphery, A at the part where the gap between the 82 faces becomes smaller and A inside it, and A between the 82 faces. It consists of parts having a structure with constant intervals.

Furthermore, in the fluid concentrator of the present invention, the distance between the 8 and 132 planes on the outer periphery is the minimum value within the gap;
It is desirable that one of the values is 0.5 or more.

If such a structure is adopted, the gap between the gaps at the outer periphery will no longer be O, so the flow of the liquid at the outer periphery will be smoother, and the turbulence given to the fluid within the hollow will be reduced. becomes possible.

Especially if the fluid flow rate in the packed column is high or
When increasing the diameter of h and trying to make the fluid flow through the tower at the same linear velocity as before the scale amplifier, the flow rate increases near the fluid inlet or outlet of the gap in the fluid concentrator, causing the fluid to flow locally. In the case of a curved or fluid-filled L1 that is difficult to flow,
The flow velocity of the fluid blowing out of the pipe increases, and when it collides with the inlet surface, z[4] An unusual fluid collision phenomenon occurs, and only that part of the packed layer directly below that surface flows at a high flow velocity. A problem arises. In such a case, a taper is created near the fluid inlet or outlet of the fluid concentrator so that the gap between the voids becomes larger as the fluid approaches the inlet or outlet. It is preferable to reduce the linear velocity of the fluid in the center (by increasing the diameter of the outlet tube).

Furthermore, in this fluid concentrator, if the value defined as follows from D and l1sav=#sav/I)+1 is 0.01≦≦0.04, then the fluid passes through the fluid concentrator. This is preferable because it can reduce the disturbance that occurs when doing so.

” In the binary notation! V, sav −(r2− r+) X,' jl!
s+ (r3-ra) X Lee-AJ Otsu Lr
, -r.

(r,, r2+ r3+ '51 + 'S2
+ ej- see Figure 1) D- Inner diameter of packed column (cm)
shows.

If the above value is larger than the above range, the void volume of the fluid concentrator becomes large, the turbulence that occurs when the fluid passes through the void becomes large, and the position of the fluid flow in the horizontal 11i plane view inside the column increases. G
4, the fluid flow inside the fluid separation device becomes uneven, or voids are formed due to slight deformation of the 8, 82 surfaces.1!7. Since the flow state of the fluid flowing through i changes greatly, stable performance cannot be obtained, and it is undesirable because it is in the direction of 1.

In particular, in a packed column whose purpose is to separate substances by chromatography, the turbulence of the fluid is
'Ill efficiency is greatly affected, so the above range is set to 0.
It is preferable that 015≦≦0.03.

In the fluid reservoir three concentrator of the present invention, r on the first
and ■] do not have to be equal, but if r3×2 and D match within a range of 15% of D, it is less likely that a pool of liquid will occur near the outer periphery of the gap or that the distribution of the fluid will be incomplete. This is preferable because the turbulence of the fluid that occurs when passing through the gap can be reduced as a result.

Next, Examples and Comparative Examples will be shown to explain the present invention. In the example, an asymmetry coefficient of 1? □
Use a saw. This coefficient i? 1 is the next sharpest thing.

While flowing OoI N hydrochloric acid at a constant flow rate into the filling to,
2M/7 from ``Liquid injection l'' set just before increase +1! After injecting a small amount of saline solution and collecting the drained liquid, N
a '6% degree is measured using an atomic absorption spectrometer, and the horizontal axis shows 2M/I! The amount of liquid discharged after injecting the saline solution is plotted on the vertical axis, and the Na concentration of the 11t11 solution is plotted to obtain a pulse waveform, and its shape is examined.

If the performance of the fluid concentrator is low, the pulse waveform at the outlet exhibits a supination that causes greater tailing due to the time delay of the fluid flow within the fluid concentrator. Therefore, the pulse asymmetry coefficient was used as a measure of the difference in tailing.

The non-illusory phosphorescence of a pulse is 1/1 of the peak height of the pulse.
'l'ii of the pulse before the peak position at 10
(Wp), the width of the pulse after the peak position (
WR).

ふ-W, /WF The larger the value of 1 is, the more intense the tailing is, that is, the greater the non-uniformity of the flow.

P diagram IL for HoJ! - A cell tower was prepared in which fluid collectors having the structure shown in FIG. 1 were installed above and below a packed column with an inner diameter of 30 cm and a length of 50 cm so that the inlet surface was inside the column. where the length of each part of the device for the fluid i1 is rl = 3 Q mm, r2 =
75mm, r3=150mm, (lo=10
mm, 's+= eq=2,5 between, p soil-0,5
Bent down.

In addition, the A side has an average hole diameter of 40.17 and a length of 3 inches.
Use a J filter to maintain the air gap.
I set 0 no soshiyu gold 1.14.

In the above-mentioned apparatus, a C7! of anion-exchanged 4AI fat, which was prepared by converting a styrene-shichinilhensen copolymer into a quaternary ammonium compound with trinotylamine, was added. 0.26 g+-dry resin/c<: 'i3
IJun resin, crosslinking degree 8%, particle size 100-200 mS Cedar 1 fat was filled up to the top of J.

The filling of the ion exchange resin was carried out with the fluid separator at the top of the tower removed, and the following experiment was conducted with the filling completed 1 and the fluid separator installed. Zunawara 0゜l 'N hydrochloric acid solution 7.27! 2M/β sodium chloride/8 from the liquid inlet installed just before the population of 1' (7).
11k 0.2 ml was injected instantaneously, and the liquid flowing out from the column outlet was 50 rn 7! fraction of minutes 1)
The 1-lium concentration in each fraction was measured using an atomic absorption spectrometer. These measurements are 1yl
The pulse waveform was plotted by plotting the outflow l+)i m on the axis and the concentration of sulfur and lithium on the vertical axis. The asymmetry coefficient is 1, 1 8
De Ah Noko.

Comparative Example I A packed tower was prepared by using the apparatus of Example 1 except that the fluid separation device was changed to that shown in FIG. 2, and the same operation was performed. In Figure 2, the length of each part is I-, = 3 ram, r2 =
It was 150mm. The asymmetry coefficient is 1.4.

Example 2 A saw-packed column was prepared by installing fluid collectors having the structure shown in FIG. 1 above and below a packed column having an inner diameter of 10 cm and a length of 3 Q cm so that the Δ plane was inside the column. where fluid 'Ii
The length of each part of the collecting device is r, = Omm, r2 = 25
mm, 4cm/s+ = 7! s2 =1.5m
m, (!b = 2mm')
.

The structure for maintaining jtAy, da, and air gap on the A side is the same as in Example 1.

The experiments of Example 1 and Example II> were carried out at 0. The flow rate of lN1fi acid/8 liquid was 0.8 It/min, and the liquid volume of each fraction was 5 mβ. As a result, the nonlinear coefficient of the obtained pulse waveform was 1.1.

Top 1 of the Jianjii Tower with an inner diameter of 100 cm and a length of 80 cm.
-A or J?A or J? I
I prepared a charger N5 installed so that it would be inside the i. Here, the length of each part of the fluid collector is rl-5Q mm,
r2・-250 tuna, “a”” 500 mm, Rc-2
0mn+, p61-7! s: L-6 gate, p! The tip was 2 fins. The structure for maintaining the lunar quality of the entrance plane and the sky 1t1 was the same as in Example I.

The same test as in Example I was carried out with the flow rate of O, I N hydrochloric acid solution being 80β/min, and the liquid volume of each fraction being 5 (10 m
l! As a result, the asymmetry coefficient of this pulse waveform was 1.23.

Example 4 Shageno I-ite 1 with an inner diameter of 300 mm and a length of 1000 mm
The θπ body accompaniment device used in Example 1 was installed in the chromatography column, and the separation column was equipped with seven orite (60 to 100
Filled with methane).

The column filled with Semerite I- is maintained at a temperature of 100°C, and the Semerite is first supplied with I-toluene to condition the semerite, and then treated with Hensen 50% by weight as the Mll substance, Schiff Lohegilene 32. 5 weight ♀%,
A C6 mixture consisting of Schiff 15I hexa21F and 5% by weight was fed with a constant m pump (l) to form an absorption band of the C6 mixture. Then, i1Y and 1-luene was added to the column at 8.4ρ/ C6 mixture is adsorbed by supplying at a constant flow rate of
! IF was developed. Molten l1iI flowing out from the bottom of the column
The t solution was divided into 0.25 to 2.51 fractions and collected. The weight percent of Hensen, cyclohexene, cyclohexene, and l-luene in the sample solution thus collected was determined by quantification using Casta'7 toography.
Shita.

A solution rich in cyclohexene and cyclohexene is produced near the front interface of the C6 mixture adsorption zone with respect to the traveling direction of 81[〆1'j, and a solution rich in -, Fluid was collected. As a guideline for separation efficiency, the weight of Hensen contained in the fraction with a purity of 99% or higher relative to the Hensen C6 mixture is 5.
It weighed 13 kg.

Comparative example 2 Jaken 1-Junri I with inner diameter 300 questions and length 1000 mm
The separation column equipped with the fluid separation device used in Comparative Example 1 was used as a separation column, and the zeolite 1- was packed in the same column as in Example 3. el
I did t.

As a result, the weight of Hensen contained in the fraction with a purity of 999 or less for the mixture was 4.11 k
It was only g.

[Brief explanation of drawings]

FIG. 1 is a 1Ji plane view showing an example of a fluid separating device according to the present invention used in an example, and FIG. 2 is a cross-sectional view showing an example of a fluid separating device used in a comparative example. ■and 4...fluid inlet/outlet, 2 and 5...inlet face, 3 and 6...13 face. 1. Patent applicant Asahi Kasei Industries, Ltd. Patent agent Akira Aoki Patent attorney Kazuyuki Nishidate Patent attorney Akiyuki Yamaguchi Kei J.

Claims (1)

[Claims] 1. A fluid separation device installed in a packed tower, with a void inside thereof, and two surfaces forming the void: entrance surface: /l; ε body passes through, but the packing material The end surface of the partition plate that does not pass through or the perforated plate that supports it and is close to the fluid inlet/outlet, surface B' 1) The structure of the surface facing the Δ plane in the solid part to which the ij rest inlet/outlet is connected is the structure of the void. The inclination of plane 13 with respect to the entrance plane changes at least once in all directions from the fluid inlet/outlet to the outer periphery within a range of 95% or more of the area of Table 101, and An improved fluid concentrator δ characterized in that the structure is such that the spacing does not increase by at least lf9. 2. A part that forms a void, has a structure in which the distance between the two surfaces A and B becomes smaller as the 13th surface of the 82 surfaces approaches the outer periphery, and the distance between the two surfaces A and B on the inside thereof. 2. A device according to claim 1, having a constant structure. 3. In the outer periphery within the gap, the distance between the two planes Δ and B is the minimum value within the gap, and the value is 0.5 or more, as described in the range 1 or 2 of Patent No. 81i. equipment. Claims 1 to 3 have a tapered structure in which the distance between planes A and 132 increases as the distance approaches the fluid inlet and outlet near the fluid inlet/outlet 1 of the /JL body separation device. The device according to any one of the above. 5. The inner diameter D (cm) of the full Ii column, A in the void, and the average spacing between 82 planes (excluding the center () esav (cm)
) where the value k = II sav / ri+' is 0.01≦1 (≦0.04). .