CN109529728B - Fluid mixing distributor, apparatus and container for solid particle bed - Google Patents
Fluid mixing distributor, apparatus and container for solid particle bed Download PDFInfo
- Publication number
- CN109529728B CN109529728B CN201710867173.7A CN201710867173A CN109529728B CN 109529728 B CN109529728 B CN 109529728B CN 201710867173 A CN201710867173 A CN 201710867173A CN 109529728 B CN109529728 B CN 109529728B
- Authority
- CN
- China
- Prior art keywords
- fluid
- pipe
- distribution
- mixing
- bed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/08—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with moving particles
- B01J8/085—Feeding reactive fluids
Abstract
The invention relates to a fluid mixing distributor, a device and a container for a solid particle bed, wherein the fluid mixing distributor (8) comprises a fluid distribution pipe (10), a fluid receiving pipe (9) and a fluid communicating pipe (22) communicated with the fluid distribution pipe (10), the fluid receiving pipe (9) axially extends upwards from the fluid distribution pipe (10) and is communicated with the fluid distribution pipe (10), a fluid mixing cap (16) is buckled on the fluid receiving pipe (9), an annular space (91) for fluid to pass through is formed between the fluid mixing cap (16) and the fluid receiving pipe (9), and a fluid distribution opening (24) is formed on each fluid distribution pipe (10). The fluid mixing distributor and the fluid mixing equipment provided by the invention can improve the flow uniformity of the fluid in the container provided with the solid particle bed layer, so that the fluid is fully mixed, and the pressure drop of the fluid during flowing through is reduced.
Description
Technical Field
The invention relates to a fluid mixing distributor, equipment and a container for a solid particle bed.
Background
In the field of petrochemical industry, a process of contacting a fluid with solid particles performed in a vessel containing the solid particles is widely used in operations such as adsorption separation, catalytic reaction, and the like. The adsorption separation is a separation technology commonly used in petrochemical industry, and has a very good effect on the purification of a mixture with a similar structure and a small boiling point difference. The apparatus used for adsorption separation includes fixed bed, moving bed and simulated moving bed, wherein the simulated moving bed is the main apparatus used for adsorption separation at present. In a simulated moving bed, the adsorbent of the stationary phase is assumed to move against the moving direction of the materials, the mixed materials to be separated are continuously fed at a point in the middle of the separation working zone, the ratio of the flow rates of the two flows is selected, the feed liquid is divided into two parts flowing in opposite directions from the inlet, and the adsorbent seems to adsorb the products moving upwards with the feeding inlet as a reference point, so the simulated moving bed is called. The higher the position above the feed point, the higher the product purity, while the by-products are enriched in the opposite direction. The production capacity and separation efficiency of the simulated moving bed are higher than those of a fixed adsorption bed, and the abrasion of the adsorbent of the moving bed, the blockage of equipment or pipelines by fragments or dust and the channeling among solid particle gaps can be avoided.
When a fluid flows through a separation or reaction device such as a simulated moving bed or a fixed bed containing a solid particle bed, one or more fluid mixing distribution devices are needed to be arranged in the device to separate solid ions in the device into two or more solid particle beds. The fluid mixing and distributing device is arranged above the uppermost solid particle bed and between the two solid particle beds, so that the fluid passing through the cross-sectional area in the device can be mixed more fully and flows more uniformly, and the operation efficiency is improved. For example, the provision of a fluid mixing and distribution device may reduce or even eliminate channeling, short circuiting and flow dead zones within the solid particle bed, thereby reducing radial temperature differences and variations in fluid concentration.
Chinese patent CN201010514190.0 discloses a fluid collecting, mixing and distributing device, generally comprising the following components from top to bottom along the main axis of a container: the device comprises an upper bed layer supporting part, a fluid collecting part, a fluid rectifying part and a lower surface fluid distributing part. The fluid collecting component is positioned below the upper bed layer supporting component, and all the components are arranged in sequence at reasonable intervals. The unique fluid straightening components of the device allow for a more uniform flow of fluid through the device. In addition, the apparatus has a variety of external shapes to accommodate the use of containers of various sizes and installation requirements.
Chinese patent CN201020000158.6 discloses a liquid collecting, mixing and dispensing device. The device is characterized in that a plurality of labyrinth components for enhancing fluid mixing are arranged in the device. The labyrinth component prolongs the fluid mixing time and enhances the mixing effect between the fluids.
Chinese patent CN200580039141.3 discloses a mixer-distributor-collector apparatus for use between solid particle beds in fluid-solid contacting vessels. The apparatus comprises an upper bed for holding solid particles and allowing a fluid to flow downwardly through an upper boundary of said mixer-distributor-collector apparatus; a fluid distributor located below and spaced apart from the upper boundary; a fluid deflection plate spaced apart from and between the two; at least one passage through the deflector plate; also included is a flow controller selected from the group consisting of perforated plates, screens, grids, porous solids, honeycomb objects, and combinations thereof. The device has good distribution effect on fluid in a container with a small diameter. However, in a container with a larger diameter, when the flow path of the fluid in the equipment is longer, a relatively obvious flow dead zone exists when the fluid passes through the equipment, high-speed jet flows are generated locally, and the mixing and distribution effects of the fluid are general.
Chinese patent CN99810540.6 discloses a fluid distribution-collection system comprising several distribution trays and several slats for mixing, distributing or drawing out fluids. The system has two chambers, one of which performs the introduction of external fluid and the other of which performs the withdrawal of fluid from the container. During the operation, when the operation of introducing or extracting the fluid is switched, the pipeline does not need to be flushed. The apparatus provides a good fluid distribution, but the internal structure is complex, and the increase in the number of chambers results in an increase in the number of conduits, reducing the effective volume within the container. The device has a single appearance structure, is suitable for large-scale containers, and is difficult to install for small containers.
In summary, the fluid mixing and distributing apparatus currently used still has the following problems to be improved: (1) the flow path of the fluid in large-scale equipment is long, and a flow dead zone is easily formed. (2) The fluid has a relatively large concentration gradient in large equipment, and the fluid is not fully mixed. (3) The complex internal structure results in a large pressure drop when the fluid flows through the device.
Disclosure of Invention
The invention aims to provide a fluid mixing distributor, equipment and a container for a solid particle bed layer.
In order to achieve the above object, the present invention provides a fluid mixing distributor for a solid particle bed, the fluid mixing distributor comprising a fluid distribution pipe, a fluid receiving pipe, and a fluid communicating pipe communicating with the fluid distribution pipe, the fluid receiving pipe axially extending upward from the fluid distribution pipe and communicating with the fluid distribution pipe, the fluid receiving pipe being fastened with a fluid mixing cap, an annular space for fluid to pass through being formed between the fluid mixing cap and the fluid receiving pipe, and each fluid distribution pipe being formed with a fluid distribution port.
Preferably, the fluid distribution pipes are arranged side by side along the axial direction of the fluid communication pipes, and the fluid communication pipes are connected with each fluid distribution pipe.
Preferably, the ratio of the outer diameter of the fluid receiving tube to the inner diameter of the fluid mixing cap is 1: (1.2-10), the ratio of the internal diameters of the fluid receiving pipe and the fluid distribution pipe is 1: (1-10), the ratio of the spacing of adjacent fluid distribution tubes to the outer diameter of said fluid distribution tubes is (1.5-100): 1, the ratio of the inner diameters of the fluid communication pipe and the fluid distribution pipe is 1: (1-5); the fluid distribution ports are small holes or slits, the width of each fluid distribution port is 1.5-10 mm, the distance between every two adjacent fluid distribution ports is 2-50 mm, and the ratio of the total opening area of the fluid distribution ports on each fluid distribution pipe to the surface area of the fluid distribution pipe is 1: (5-100).
The invention also provides fluid mixing and distributing equipment for the solid particle bed, which comprises an upper bed layer supporting part, a lower bed layer fluid distributing part, a fluid collecting plate arranged between the upper bed layer supporting part and the lower bed layer fluid distributing part and the fluid mixing and distributing device provided by the invention, wherein an upper layer space is formed between the upper bed layer supporting part and the fluid collecting plate, a lower layer space is formed between the fluid collecting plate and the lower bed layer fluid distributing part, and the space above the upper bed layer supporting part is communicated with the upper layer space through the upper bed layer supporting part; fluid communicating pipe and fluid distributing pipe of fluid mixing distributor set up in the lower floor's space of fluid collecting plate below, fluid receiving pipe passes from bottom to top fluid collecting plate just fluid mixing cap set up in the upper space of fluid collecting plate top, upper space only pass through annulus, fluid receiving pipe, fluid communicating pipe and fluid distributing pipe with lower floor's space fluid intercommunication.
Preferably, the upper bed layer supporting part comprises a solid particle barrier layer and a supporting layer which is arranged below the solid particle barrier layer and is used for supporting the solid particle barrier layer; the solid particle barrier layer is composed of at least one selected from a wire mesh, a grid, a porous sieve plate and a honeycomb material, and the support layer is a support strip and/or a support plate.
Preferably, the lower bed fluid distribution part is made of a metal wire mesh or a porous material, and a supporting layer is arranged or not arranged; the ratio of the total open area of the lower bed fluid distribution part to the cross-sectional area of the lower bed fluid distribution part is 1 (5-100).
Preferably, the distance between the lower bed fluid distribution part and the fluid collection plate is H, and the average center line distance of adjacent openings in the lower bed fluid distribution part is MGH and MGThe ratio of (A) to (B) is 2 to 100.
Preferably, the fluid collecting plate is formed with an opening for passing a fluid receiving pipe, and the ratio of the total opening area of the fluid collecting plate to the cross-sectional area of the fluid collecting plate is 1: (5-200).
Preferably, the equipment is further provided with a fluid inlet and outlet part and an inlet and outlet pipe, the fluid inlet and outlet part is communicated with the inlet and outlet pipe in fluid, and the inlet and outlet pipe is used for being communicated with a material storage tank outside the solid particle bed layer in fluid; the fluid leading-in and drawing-out component is a hollow pipe, the side wall of the fluid leading-in and drawing-out component is provided with a plurality of fluid leading-in and drawing-out ports, and the fluid leading-in and drawing-out ports are small holes or slits.
Preferably, the width of the fluid introduction and extraction ports is 1.5 to 10mm, the interval between adjacent fluid introduction and extraction ports is 5 to 100 mm, and the ratio of the total opening area of the fluid introduction and extraction ports to the side wall area of the fluid introduction and extraction member is 1: (5-100).
Preferably, the fluid receiving tube and the fluid mixing cap are distributed on one side or two sides of the fluid introducing and extracting part.
The invention also provides a container provided with the solid particle beds, which comprises a container shell and one or more solid particle beds arranged in the container shell from top to bottom along the axial direction of the container shell, and the fluid mixing and distributing equipment provided by the invention is arranged above and/or below at least one solid particle bed.
Compared with the prior art, the invention has the following advantages:
the fluid mixing distributor 8 provided by the invention can uniformly guide the fluid collected by the fluid collecting plate 7 into the lower-layer space 12 of the fluid mixing distribution equipment through the fluid receiving pipe 9, and uniformly distribute the fluid through the fluid distribution pipe 10 and the fluid communication pipe 22.
The fluid mixing distributor 8 provided by the invention not only can effectively strengthen the mixing between the external fluid introduced from the fluid introducing and extracting part 15 and the upstream fluid collected by the fluid collecting plate 7, but also can effectively collect the fluid flowing down at the upstream and lead the fluid out of the device.
The fluid mixing distributor 8 provided by the invention can adjust the number of the fluid receiving pipes 9 and the fluid distributing pipes 10 according to the size of the equipment, thereby meeting the fluid mixing distribution requirements of equipment with different scales, particularly large-scale equipment.
The fluid mixing and distributing equipment provided by the invention enables the fluid passing through the equipment to obtain more uniform flow, more sufficient mixing and less flow fluctuation interference. The structure is simple, the pressure drop is small when the fluid passes through, the fluid mixing and distributing device can meet the fluid distributing requirements of containers of various scales, and is particularly suitable for the fluid mixing and distributing process of large containers.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a cross-sectional side view of one embodiment of a vessel provided with a bed of solid particles and a fluid mixing and distribution apparatus according to the present invention;
FIG. 2 is a schematic cross-sectional view of one embodiment of a fluid mixing and distribution apparatus provided in the present invention;
FIG. 3 is a schematic structural view of an embodiment of the upper bed support section provided in accordance with the present invention;
FIG. 4 is a schematic structural view of one embodiment of a fluid collection sheet provided in accordance with the present invention;
FIG. 5 is a schematic side view of one embodiment of a fluid intake and evacuation tube provided in accordance with the present invention;
FIG. 6A is a schematic structural diagram of one embodiment of a fluid mixing distributor according to the present invention;
FIG. 6B is a schematic cross-sectional view of one embodiment of a fluid mixing distributor according to the present invention;
FIG. 6C is a schematic bottom view of one embodiment of a fluid mixing distributor according to the present invention;
fig. 7 is a schematic structural view of a mixer-distributor-collector apparatus disclosed in chinese patent CN 101056684A.
Description of the reference numerals
1 container 2 solid particle bed 3 fluid mixing distribution equipment
4 vessel inlet 5 upper bed support 6 lower bed fluid distribution element
7 fluid collecting plate 8 fluid mixing distributor 9 fluid receiving pipe
10 fluid distribution tube 11 headspace 12 subchamber
13 container housing 14 vertical axis 15 fluid introduction and extraction member
16 fluid mixing cap 17 leading into the extraction pipe 18 leading into the extraction port
19 longitudinal support beam 20 transverse support beam 21 central tube
22 fluid communication tube 23 support ring 24 fluid distribution port
91 annular space
105 solids retaining screen 106 fluid distributor 107 flow controller
108 fluid deflector 109 channel 118 conduit
119 mixing box 120 splash shield
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, the distance (pitch) between two members means the shortest length of a line connecting the two members.
As shown in fig. 6A-6C, the present invention provides a fluid mixing distributor for a solid particle bed, the fluid mixing distributor 8 includes a fluid distribution pipe 10, a fluid receiving pipe 9, and a fluid communicating pipe 22 communicating with the fluid distribution pipe 10, the fluid receiving pipe 9 extends upward from the fluid distribution pipe 10 along an axial direction and communicates with the fluid distribution pipe 10, a fluid mixing cap 16 is fastened on the fluid receiving pipe 9, an annular space 91 for fluid to pass through is formed between the fluid mixing cap 16 and the fluid receiving pipe 9, and a fluid distribution port 24 is formed on each fluid distribution pipe 10. The fluid mixing distributor provided by the invention can effectively mix the fluid from the upper part through the annular space 91, the fluid receiving pipe 9, the fluid distribution pipe 10 and the fluid communicating pipe 22 and then redistribute the fluid through the fluid distribution port 24, and under the action of the fluid mixing cap 16 and the fluid receiving pipe 9, forced circumfluence is formed in the annular space 91, the mixing path among the fluids is prolonged, and the mixing of the fluids is enhanced, so that the uniformity of the fluid distributed to the lower solid particle bed layer is improved, and further, the reaction efficiency and the introduction and extraction efficiency of the fluid are improved.
As shown in fig. 6B, the fluid mixing cap 16 may be partially in contact with the fluid receiving tube 9 to secure the fluid mixing cap, such as by a spring, weld, screen, etc., and the lower edge of the fluid mixing cap 16 is lower than the upper edge of the fluid receiving tube 9, thereby allowing the fluid mixing cap to snap onto the fluid receiving tube. The fluid receiving pipe 9 is a hollow pipe, and a perforated plate or a corrugated plate can be arranged at the top of the hollow pipe to enhance the mixing of the fluids. The cross-sectional shape of the fluid receiving tube 9 may be rectangular, circular, oval or other shape, as may the cross-sectional shape of the corresponding fluid mixing cap 16. Taking a circular shape as an example, the ratio of the outer diameter of the fluid receiving tube 9 to the inner diameter of the fluid mixing cap 16 may be 1: (1.2-10). The distance between each set of fluid mixing cap 16 and fluid receiving tube 9 may be 10-200 mm, preferably 20-100 mm, and the shape and diameter of each set of fluid mixing cap 16 and fluid receiving tube 9 may be identical or different.
Depending on the size of the container, the number of fluid distribution conduits 10 may be one or more, which may shorten the flow path of the fluid and reduce or eliminate dead flow areas. As shown in fig. 6A-6C, when there are a plurality of fluid distribution tubes, the diameters of the fluid distribution tubes may be equal, or may decrease with increasing radial distance from fluid receiving tube 9, the fluid distribution tubes 10 may be a plurality and arranged side by side along the axial direction of fluid communication tubes 22, and the fluid communication tubes 22 may be connected, preferably staggered, with each fluid distribution tube 10, thereby increasing the range of fluid distribution of the fluid distribution tubes. The fluid receiving pipe 9 communicates with the fluid distribution pipe 10, and the ratio of the inner diameters of the two pipes can be 1: (1-10); the ratio of the spacing of adjacent fluid distribution tubes 10 to the outside diameter of the fluid distribution tubes 10 may be (1.5-100): 1, preferably (5-50): 1; the fluid communication tube 22 is in communication with the fluid distribution tube 10, and the cross-sectional shapes of the fluid distribution tube 10 and the fluid communication tube 22 may be rectangular, circular, oval or other shapes, and if both are circular, the ratio of the inner diameters of the two may be 1: (1-5), the ratio of the length of the fluid communication tube 22 to the radial length of the whole fluid mixing and distributing device may be 1: (1.2-10), the diameter of the fluid communication tube 22 may be uniform, or may be reduced with the radial distance from the fluid receiving tube 9, the surface of the fluid communication tube 22 is generally non-porous or slit, but some small holes or slits may be opened according to the need; the fluid distribution openings 24 may be small holes or slits to allow the fluid to be uniformly distributed into the space below the fluid distribution pipe, the width (diameter if small holes) of the fluid distribution openings 24 may be 1.5-10 mm, preferably 2-6 mm, the distance between adjacent fluid distribution openings 24 may be 2-50 mm, preferably 10-30 mm, and the ratio of the total opening area of the fluid distribution openings 24 on each fluid distribution pipe 10 to the surface area of the fluid distribution pipe 10 may be 1: (5-100), preferably 1: (10-50) and preferably decreases with increasing radial distance from the fluid receiving pipe 9.
As shown in fig. 2, the present invention further provides a fluid mixing and distributing device for a solid particle bed, the fluid mixing and distributing device 3 comprises an upper bed supporting part 5, a lower bed fluid distributing part 6, a fluid collecting plate 7 arranged between the upper bed supporting part 5 and the lower bed fluid distributing part 6, and a fluid mixing and distributing device 8 provided by the present invention, an upper space 11 is formed between the upper bed supporting part 5 and the fluid collecting plate 7, a lower space 12 is formed between the fluid collecting plate 7 and the lower bed fluid distributing part 6, and the space above the upper bed supporting part 5 is in fluid communication with the upper space 11 through the upper bed supporting part 5; the fluid communicating tube 22 and the fluid distributing tube 10 of the fluid mixing distributor 8 are disposed in the lower space 12 below the fluid collecting plate 7, the fluid receiving tube 9 passes through the fluid collecting plate 7 from bottom to top and the fluid mixing cap 16 is disposed in the upper space 11 above the fluid collecting plate 7, and the upper space 11 is in fluid communication with the lower space 12 (when installed in a container) only through the annular space 91, the fluid receiving tube 9, the fluid communicating tube 22 and the fluid distributing tube 10. The fluid mixing and distributing equipment provided by the invention can support the solid particle bed layer and collect, mix and distribute the fluid from the solid particle bed layer, thereby improving the reaction efficiency of the lower solid particle bed layer and the introduction and extraction efficiency of the fluid.
The upper bed layer supporting part 5 is used for supporting the upper solid particle bed layer and allowing the fluid to pass through, and as shown in fig. 3, for example, may comprise a solid particle barrier layer and a supporting layer arranged below the solid particle barrier layer and used for supporting the solid particle barrier layer; the solid particle barrier layer can adopt a special type of grid called a 'shaped wire screen', and can also be composed of at least one selected from a wire mesh, a grid, a porous sieve plate and a honeycomb material, the material of the grid, the porous sieve plate and the honeycomb material can be metal, metal sintered material or other materials, and the size of an opening (such as small holes or slits) formed on the solid particle barrier layer is smaller than the minimum passing size of the solid particles, for example, the width of the opening is smaller than the minimum particle size of the solid particles; the support layer may be a support bar (beam) and/or a support plate for supporting the weight of the upstream bed particles and the pressure caused by the fluid flow. The supporting bars (beams) can be formed in a transverse and longitudinal staggered mode, for example, the supporting bars (beams) can be composed of transverse supporting beams 20 positioned at the upper part and longitudinal supporting beams 19 positioned at the lower part, so that the supporting strength of the supporting layer is improved, and the supporting layer is prevented from being broken; the support plate may be formed of an apertured formed plate.
As shown in fig. 2, the lower bed fluid distribution part 6 is used for redistributing and delivering the fluid distributed from the fluid mixing distributor to the lower bed of solid particles, and blocking the solid particles of the downstream bed from entering the apparatus, and may be made of, for example, a wire mesh or a porous material, with or without a support layer, which may also be a support strip, or a porous sintered metal material with certain strength, for example, a support ring 23 may be provided at the lower part of the lower bed fluid distribution part along the inner wall of the container shell 13 to fix the lower bed fluid distribution part in the container shell 13; the ratio of the total open area of the lower bed fluid distribution member 6 to the cross-sectional area of the lower bed fluid distribution member 6 may be 1 (5-100), preferably 1: (10-30).
In one embodiment, the distance between the lower fluid distribution element 6 and the fluid collecting plate 7 is H, and the average centerline distance between adjacent openings in the lower fluid distribution element 6 is MGH and MGThe ratio of (A) to (B) is 2 to 100, preferably 10 to 30, to facilitate fluid distribution and reduce impact on the lower bed.
The fluid collecting plate is used for separating the upper layer space and the lower layer space to allow the fluid to be mixed and distributed through the fluid mixing distributor, the fluid collecting plate can be a flat plate with no holes or a tilted plate, and a guide plate can be arranged at the lower part of the fluid collecting plate according to the situation, as shown in fig. 4, the fluid collecting plate 7 can be provided with openings for the fluid receiving pipes 9 to pass through, and the openings can be round, oval, square or other shapes according to the shapes of the fluid receiving pipes 9. The ratio of the total open area of the fluid collection plate 7 to the cross-sectional area of the fluid collection plate 7 may be 1: (5-200). The fluid collecting plate 7 may be a circular plate formed by splicing a plurality of sector plates to improve the convenience of installation.
In order to facilitate the withdrawal of a fluid rich in reaction products from between the beds of solid particles and the introduction of a fluid rich in reaction raw materials and other fluids contributing to the reaction such as desorbents, as shown in fig. 2 and 5, the apparatus may be further provided with a fluid introduction and withdrawal part 15 and an introduction and withdrawal pipe 17, the fluid introduction and withdrawal part 15 may be in fluid communication with the introduction and withdrawal pipe 17, the introduction and withdrawal pipe 17 is used for fluid communication with a material storage tank outside the beds of solid particles, for example, the introduction and withdrawal pipe 17 may penetrate the upper bed support member 5 and the vessel shell 13 in sequence and extend to the outside of the vessel, and the fluid introduced from the fluid introduction and withdrawal part 15 and the introduction and withdrawal pipe 17 into the upper space and the fluid from the beds of solid particles may be mixed and distributed by a fluid mixing distributor. The fluid introduction and extraction member 15 may be rectangular, arc-shaped, ring-shaped, cross-shaped, or the like, for example, a hollow tube, and the side wall may be provided with a plurality of fluid introduction and extraction ports 18, and the fluid introduction and extraction ports 18 may be small holes or slits. The width (diameter if a small hole) of the fluid introduction and withdrawal port 18 may be 1.5 to 10mm, preferably 3 to 8 mm, the interval between adjacent fluid introduction and withdrawal ports 18 may be 5 to 100 mm, preferably 10 to 60 mm, and the ratio of the total opening area of the fluid introduction and withdrawal ports 18 to the side wall area of the fluid introduction and withdrawal part 15 may be 1: (5-100), preferably 1: (20-60), more preferably 1: (30-40).
In order to facilitate the fluid introduced from the outside to be sufficiently mixed with the fluid in the upper fixed particle bed and to introduce the fluid into the lower space, as shown in fig. 2, the fluid receiving pipe 9 and the fluid mixing cap 16 may be distributed on one side or both sides of the fluid introducing and withdrawing part 15.
As shown in fig. 1-2, the present invention also provides a vessel provided with solid particle beds, the vessel 1 comprises a vessel shell 13 and one or more solid particle beds 2 arranged in the vessel shell 13 from top to bottom along the axial direction of the vessel shell 13, at least one solid particle bed 2 is provided with a fluid mixing and distributing device 3 provided by the present invention above and/or below, and preferably each solid particle bed 2 is supported by an upper bed supporting part 5 of the fluid mixing and distributing device 3 positioned below the solid particle bed 2. The container provided with the solid particle bed layer is provided with the fluid mixing and distributing device, so that the fluid passing through the container can flow more uniformly, the mixing can be more fully realized, and the flow fluctuation interference is smaller.
The fluid mixing and distributing device provided by the invention can be used for any process of contacting fluid and solid particles, and one high-performance fluid mixing and distributing device can be used in a container for contacting the fluid and the solid particles independently or a plurality of devices can be used simultaneously. The fluid flows downwardly in the vessel 1 along the vertical axis 14 through each of the separate beds of solid particles. The materials comprising the bed of solid particles may include, but are not limited to, adsorbents, resins, catalysts, and inert materials. The fluid flowing through the particle bed may be a vapor, liquid or supercritical fluid, and the fluid may be a pure substance or a mixture of compounds or fluids, provided that the mixture is substantially one phase. There are many processes in the petrochemical industry where such fluids come into contact with solid particles, such as various reaction and separation processes. The equipment provided by the invention is preferably used in the adsorption separation process.
The high-performance fluid mixing and distributing device provided by the invention can be arranged in the middle of a container containing a solid particle bed layer such as a simulated moving bed, so that the particle bed layers are separated from each other, and the fluid is collected, mixed and distributed, and also can be placed at the top of the container to play a role in initially distributing the fluid or placed at the bottom of the container to play a role in finally collecting the fluid.
In the present invention, as shown in fig. 1, if the container 1 is not large in volume, the center of the fluid mixing and distributing apparatus 3 may be penetrated by the vertical axis 14 of the container 1; if the vessel 1 has a large volume, as shown in fig. 2, a central tube 21 may be arranged along the extension direction of the vertical axis 14 of the vessel 1, and the fluid distribution plate 7 may be arranged in the radial direction of the vessel centering on the central tube 21, in which case the fluid distribution plate may have a fan shape as shown in fig. 4.
The following provides a specific use of the fluid mixing and distribution apparatus of the present invention, but is not intended to limit the invention thereto.
The working process of the fluid mixing and distributing equipment provided by the invention comprises the following steps: as shown in fig. 1-2, fluid enters the vessel 1 from the vessel inlet 4 of the vessel 1 and enters the solid sub-bed 2 through the fluid mixing and distributing device 3, and the fluid flowing out of the solid particle bed 2 enters the upper space 11 of the device through the upper bed supporting part 5 of the other fluid mixing and distributing device 3, is collected by the fluid collecting plate 7 and enters the fluid mixing cap 16 at the upper part of the fluid mixing and distributing device 8. If at this point the external fluid enters the fluid introduction or extraction member 15 through the fluid introduction and extraction pipe 17 and enters the upper space 11 of the apparatus through the small holes 18 in the fluid introduction or extraction member 15 and enters the fluid mixing cap 16 at the upper part of the fluid mixing distributor 8 in the space 11 to contact the fluid entering the fluid mixing distributor 3 from the upstream bed of solid particles 3. As shown in fig. 6A-6C, the two flows form a circumferential flow in the annular space 91 at the upper part of the fluid mixing distributor 8 under the combined action of the fluid mixing cap 16 and the fluid receiving pipe 9, so as to achieve sufficient mixing. The mixed fluid enters the fluid distribution pipe 10 at the lower part of the fluid mixing distributor 8 through the fluid receiving pipe 9. If there are multiple fluid distribution tubes 10 in the apparatus, fluid is distributed to each fluid distribution tube 10 through a fluid communication tube 22 in the lower portion of the fluid mixing distributor 8. The fluid in each fluid distribution pipe 10 flows out of the fluid distribution openings 24 formed in the fluid distribution pipe 10 and uniformly enters the lower space 12 of the apparatus. The fluid is uniformly distributed in the lower space 12 of the apparatus through the lower bed fluid distribution part 6 and enters the downstream bed 2 of solid particles. If the fluid in the apparatus is drawn out of the vessel through the fluid introduction and extraction part 15 connected to the fluid mixing distributor 8 at this time, a part of the fluid collected by the fluid collecting plate 7 enters the fluid introduction and extraction part 15 from the introduction and extraction port 18 of the fluid introduction and extraction part 15, and is further drawn out of the vessel through the introduction and extraction pipe 17. The residual fluid passes through the annular space 91 at the upper part of the fluid mixing distributor 8, and under the combined action of the fluid mixing cap 16 and the fluid receiving pipe 9, a bypass flow is formed in the annular space 91, so that sufficient mixing is realized. The mixed fluid enters the fluid distribution pipe 10 at the lower part of the fluid mixing distributor 8 through the fluid receiving pipe 9. If there are multiple fluid distribution tubes 10 in the apparatus, fluid is distributed to each fluid distribution tube 10 through a fluid communication tube 22 in the lower portion of the fluid mixing distributor 8. The fluid in each fluid distribution pipe 10 flows out of the fluid distribution openings 24 formed in the fluid distribution pipe 10 and uniformly enters the lower space 12 of the apparatus. The fluid is uniformly distributed in the lower space 12 of the device through the lower bed fluid distribution part 6 and enters the downstream solid particle bed 3.
The fluid mixing distributor and the fluid mixing distribution apparatus provided by the present invention are further illustrated by the following examples, but the present invention is not limited thereto.
The entire experimental system consisted of a vertically oriented cylindrical plexiglas column of 2000mm diameter. Since a certain pressure exists at a specific position in the system, the system is provided with a pressure balancing component at the same time. The liquid (water) from the liquid reservoir is pumped into the top of the column. The pump volume is adjusted to control the volumetric flow of water and monitored by a flow meter. From the bottom of the cylinder, the water is returned to the liquid reservoir via a line. In the experiment, the fluid mixing and distributing device (fluid mixing distributor) provided by the invention and the fluid mixing and distributing device provided by the prior art are placed in a cylinder, and the vertical distance between the upper surface of the device and a liquid inlet is guaranteed to be 1500mm, so that the performance of the fluid mixing and distributing device is evaluated. The bottom of the solid particle bed layer at the upstream and the bottom of the solid particle bed layer at the downstream of the fluid mixing and distributing equipment are respectively provided with ceramic balls with the total height of 500mm and the diameter of 6.0mm and spherical glass beads with the total height of 150mm and the diameter of 2.0-3.0mm, then the top of the bed layer is filled with solid balls with the total height of 150mm and the diameter of 1.0mm, namely, each bed layer is filled with the solid balls, the ceramic balls and the spherical glass beads from top to bottom, and the distance between the top of the bed layer and the bottom of the fluid mixing and distributing equipment is 40 mm.
Example 1
Example 1 illustrates the dispensing effect of the fluid mixing and dispensing apparatus of the present invention.
The experimental method comprises the following steps: the fluid mixing and distribution apparatus provided by the present invention as shown in fig. 2 was placed in the experimental system described above. The ratio of the cross-sectional area of the vessel in which the fluid mixing and distribution apparatus is located to the total cross-sectional area of the fluid receiving pipe 9 (i.e. the total open area of the fluid collection plate 7) is 47.5: 1. The fluid mixing caps 16 and the fluid receiving pipes 9 on the upper part of the fluid mixing distributor 8 are respectively arranged on two sides of the fluid introducing and extracting part 15, 5 groups are arranged on each side, the diameter (the outer diameter and the pipe wall thickness are both 2mm, the same below) of each group of fluid mixing caps 16 is 65mm, and the diameter of the fluid receiving pipes 9 is 40 mm. The fluid distribution pipes 10 at the lower part of the fluid mixing distributor 8 are provided with 4 fluid distribution pipes, the distance is 500mm, and each diameter is the same and is 80 mm. The diameter of the fluid communicating pipe at the lower part of the fluid mixing distributor 8 is 80mm, and the length is 1600 mm. The fluid distribution openings are small holes, the width of each fluid distribution opening is 5mm, the distance between adjacent fluid distribution openings is 15mm, the ratio of the total opening area of each fluid distribution pipe 10 close to the middle to the surface area of the fluid distribution pipe 10 is 1:42, the ratio of the total opening area of the fluid distribution pipes 10 at two ends to the surface area of the fluid distribution pipe 10 is 1:65, the distance between the lower bed fluid distribution part 6 and the fluid collection plate 7 is H, and the average centerline distance of adjacent holes in the lower bed fluid distribution part 6 is MGH and MGIs 4, and the ratio of the total open area of the lower bed fluid distribution member 6 to the cross-sectional area of the lower bed fluid distribution member 6 is 1: 10.
Water is then slowly injected into and fills the vessel without disturbing the bed of solid particles. After the system is filled with water, the flow rate of the water is increased, the water in the bed layer flows downwards at the average linear speed of 15mm/s, 20mm/s or 40mm/s, and the movement of the fluid and particles in the particle bed layer at the upstream and the downstream of the fluid mixing and distributing device is observed. A series of speed measuring points are arranged on a certain plane between the lower part of the equipment and the upper part of a downstream bed layer, and the linear velocities of the fluids at the same height and different positions are measured to evaluate whether the velocity distribution of the fluids is uniform or not. The judgment standard is the relative average deviation of the fluid flow speed of each speed measuring point in a plane from the average fluid flow speed of the plane, namely the speed unevenness. A series of evaluations were made varying the average linear velocity in the bed and the results are shown in table 1.
The method for calculating the velocity unevenness comprises the following steps:
average speed:
average deviation of speed:
velocity unevenness:
n is the number of speed measuring points;
vi-the fluid velocity at each measurement point, m/s;
Comparative example 1
Comparative example 1 illustrates the dispensing effect of the fluid collector-mixer-dispenser disclosed in CN 101056684A.
In contrast, the simulated moving bed adsorptive separation mixer-distributor-collector apparatus disclosed in CN101056684A, which is widely used in the prior art, was used. The schematic diagram of the apparatus is shown in fig. 7 and comprises a solids retaining screen 105 (corresponding to the upper bed support member), a fluid deflector 108 (corresponding to the fluid collection member), a channel 109, a mixing box 119 (chamber), a conduit 118, a splash plate 120, a fluid distributor 106 (corresponding to the lower bed fluid distribution member) and a flow controller 107. Fluid flowing through the upstream bed 2 of solid particles enters the apparatus through the solids retaining screen 105, is collected by the fluid deflecting means 108, passes through the channel 109 into the underlying space of the apparatus, changes direction of flow under the blockage of the splash plate 120, and after being distributed through the fluid distributor 106, passes through the flow controller 107 into the downstream bed of solid particles.
The experimental procedure is the same as in example 1, and the results are shown in Table 1.
Example 2
Example 2 illustrates the mixing effect of the fluid mixing and dispensing apparatus provided by the present invention.
The fluid mixing and distributing device provided by the present invention has the same specific structure as that of embodiment 1, wherein a fluid introducing and extracting member 15 and an introducing and extracting pipe 17 are additionally provided, the fluid introducing and extracting member 15 is a hollow pipe, the side wall of the fluid introducing and extracting member is provided with a plurality of fluid introducing and extracting ports 18 (the diameter is 2mm, and the adjacent distance is 10mm), and the ratio of the total opening area of the fluid introducing and extracting ports 18 to the side wall area of the fluid introducing and extracting member 15 is 1: the fluid mixing and distribution apparatus was placed in the experimental system described above 20. Water is then slowly injected into and fills the vessel without disturbing the particle bed. After the system is filled with water, the flow rate of the water is increased, so that the water in the bed layer flows downwards at an average linear speed of 15mm/s, 20mm/s or 40 mm/s. Then, a tracer, which is brine of a certain concentration, is injected from the fluid inlet/outlet pipe 17, and a series of concentration measurement points are arranged in a plane at a certain height between the particle bed below and downstream of the apparatus to evaluate the mixing effect of the apparatus. The evaluation criteria were the concentration-to-average deviation of the saline concentration value measured at the in-plane concentration measuring point from the in-plane concentration average value, i.e., the concentration unevenness, and the evaluation results are shown in Table 2.
The method for calculating the concentration unevenness comprises the following steps:
average concentration:
average deviation of concentration:
concentration unevenness:
n is the number of measurement points;
Ci-fluid concentration per measurement point, mol/m3；
Comparative example 2
For comparison, the structure of the simulated moving bed adsorptive separation mixer-distributor-collector device disclosed in CN101056684A widely used in the prior art is the same as that of comparative example 1. The experimental procedure is the same as in example 2, and the results are shown in Table 2.
Comparative example 3
The experiment is carried out by adopting the method of the embodiment 1 of the Chinese patent CN 102451647A, the difference is that the experiment is carried out by adopting the experiment system provided by the invention, and the result is shown in the table 1.
Comparative example 4
The experiment is carried out by adopting the method of embodiment 2 of Chinese patent CN 102451647A, the difference is that the experiment is carried out by adopting the experiment system provided by the invention, and the result is shown in Table 2.
As can be seen from table 1, the fluid mixing and distribution apparatus provided by the present invention enables a more uniform flow of fluid before it enters the particle bed downstream of the apparatus.
As can be seen from table 2, the fluid mixing and distributing device provided by the present invention allows the externally introduced fluid to be more thoroughly mixed with the primary fluid in the container.
TABLE 1 evaluation of the velocity versus mean deviation of the fluid under the apparatus
TABLE 2 evaluation of the concentration of the fluid under the apparatus with respect to the mean deviation
Claims (12)
1. A fluid mixing distributor for a solid particle bed layer, the fluid mixing distributor (8) comprises a fluid distribution pipe (10), a fluid receiving pipe (9) and a fluid communicating pipe (22) communicated with the fluid distribution pipe (10), the fluid receiving pipe (9) extends upwards from the fluid distribution pipe (10) along the axial direction and is communicated with the fluid distribution pipe (10), a fluid mixing cap (16) is buckled on the fluid receiving pipe (9), an annular space (91) for fluid to pass through is formed between the fluid mixing cap (16) and the fluid receiving pipe (9), and a fluid distribution port (24) is formed on each fluid distribution pipe (10).
2. The fluid mixing distributor according to claim 1, wherein the fluid distribution pipes (10) are plural and arranged side by side in an axial direction of a fluid communication pipe (22), the fluid communication pipe (22) being connected with each fluid distribution pipe (10).
3. The fluid mixing distributor according to claim 2, wherein the ratio of the outer diameter of the fluid receiving pipe (9) to the inner diameter of the fluid mixing cap (16) is 1: (1.2-10), the ratio of the internal diameters of the fluid receiving pipe (9) and the fluid distribution pipe (10) being 1: (1-10), the ratio of the spacing of adjacent fluid distribution tubes (10) to the outer diameter of said fluid distribution tubes (10) is (1.5-100): 1, the ratio of the inner diameters of the fluid communication tube (22) and the fluid distribution tube (10) is 1: (1-5);
the fluid distribution openings (24) are small holes or slits, the width of each fluid distribution opening (24) is 1.5-10 mm, the distance between every two adjacent fluid distribution openings (24) is 2-50 mm, and the ratio of the total opening area of the fluid distribution openings (24) on each fluid distribution pipe (10) to the surface area of the fluid distribution pipe (10) is 1: (5-100).
4. A fluid mixing and distributing device for a bed of solid particles, the fluid mixing and distributing device (3) comprising an upper bed supporting part (5), a lower bed fluid distributing part (6), a fluid collecting plate (7) arranged between the upper bed supporting part (5) and the lower bed fluid distributing part (6), and the fluid mixing and distributing device (8) of claim 1, 2 or 3, wherein an upper space (11) is formed between the upper bed supporting part (5) and the fluid collecting plate (7), a lower space (12) is formed between the fluid collecting plate (7) and the lower bed fluid distributing part (6), and the space above the upper bed supporting part (5) is in fluid communication with the upper space (11) through the upper bed supporting part (5);
fluid communicating pipe (22) and fluid distributing pipe (10) of fluid mixing distributor (8) set up in lower floor's space (12) of fluid collecting plate (7) below, fluid receiving pipe (9) is passed from bottom to top fluid collecting plate (7) just fluid mixing cap (16) set up in upper space (11) of fluid collecting plate (7) top, upper space (11) only pass through annular space (91), fluid receiving pipe (9), fluid communicating pipe (22) and fluid distributing pipe (10) with lower floor's space (12) fluid intercommunication.
5. The apparatus according to claim 4, wherein the upper bed support member (5) comprises a solid particle barrier layer and a support layer disposed below the solid particle barrier layer for supporting the solid particle barrier layer; the solid particle barrier layer is composed of at least one selected from a wire mesh, a grid, a porous sieve plate and a honeycomb material, and the support layer is a support strip and/or a support plate.
6. The apparatus according to claim 4, wherein the lower bed fluid distribution member (6) is composed of a wire mesh or a porous material, with or without a support layer; the ratio of the total open area of the lower bed fluid distribution part (6) to the cross-sectional area of the lower bed fluid distribution part (6) is 1 (5-100).
7. An apparatus according to claim 6, wherein the distance between the lower fluid distribution member (6) and the fluid collection plate (7) is H, and the average centre line distance of adjacent openings in the lower fluid distribution member (6) is MGH and MGThe ratio of (A) to (B) is 2 to 100.
8. The apparatus according to claim 4, wherein the fluid collecting plate (7) is formed with openings for the passage of fluid receiving pipes (9), the ratio of the total opening area of the fluid collecting plate (7) to the cross-sectional area of the fluid collecting plate (7) being 1: (5-200).
9. The apparatus according to claim 4, wherein the apparatus is further provided with a fluid inlet and outlet member (15) and an inlet and outlet pipe (17), the fluid inlet and outlet member (15) being in fluid communication with the inlet and outlet pipe (17), the inlet and outlet pipe (17) being in fluid communication with a material storage tank outside the bed of solid particles;
the fluid introducing and extracting part (15) is a hollow pipe, a plurality of fluid introducing and extracting ports (18) are formed in the side wall of the fluid introducing and extracting part, and the fluid introducing and extracting ports (18) are small holes or slits.
10. An apparatus according to claim 9, wherein the width of the fluid introduction and withdrawal port (18) is 1.5 to 10mm, the spacing between adjacent fluid introduction and withdrawal ports (18) is 5 to 100 mm, and the ratio of the total opening area of the fluid introduction and withdrawal ports (18) to the side wall area of the fluid introduction and withdrawal part (15) is 1: (5-100).
11. Apparatus according to claim 9, wherein the fluid receiving tube (9) and the fluid mixing cap (16) are distributed on one or both sides of the fluid intake and extraction member (15).
12. A vessel provided with beds of solid particles, the vessel (1) comprising a vessel shell (13) and one or more beds of solid particles (2) arranged in the vessel shell (13) from top to bottom in the axial direction of the vessel shell (13), at least one bed of solid particles (2) being provided with a fluid mixing and distribution device (3) according to any of claims 4-11 above and/or below it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710867173.7A CN109529728B (en) | 2017-09-22 | 2017-09-22 | Fluid mixing distributor, apparatus and container for solid particle bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710867173.7A CN109529728B (en) | 2017-09-22 | 2017-09-22 | Fluid mixing distributor, apparatus and container for solid particle bed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109529728A CN109529728A (en) | 2019-03-29 |
| CN109529728B true CN109529728B (en) | 2021-09-07 |
Family
ID=65830693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710867173.7A Active CN109529728B (en) | 2017-09-22 | 2017-09-22 | Fluid mixing distributor, apparatus and container for solid particle bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109529728B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4212835A (en) * | 1971-05-06 | 1980-07-15 | Exxon Research & Engineering Co. | Method and apparatus for introducing a quench stream in upflow gas-liquid contactors |
| EP0032235A1 (en) * | 1980-01-09 | 1981-07-22 | Degremont | Apparatus for the introduction of a gas into a liquid |
| EP0462753A1 (en) * | 1990-06-18 | 1991-12-27 | Exxon Research And Engineering Company | Improved interzone mixing device |
| EP0620186A1 (en) * | 1993-04-14 | 1994-10-19 | Metallgesellschaft Ag | Reactor for the generation of chlorine dioxide by reaction of alkali metal chlorate and acid |
| CN1630549A (en) * | 2000-12-21 | 2005-06-22 | 弗劳尔公司 | Methods and apparatus for mixing fluids |
| CN204051638U (en) * | 2014-08-28 | 2014-12-31 | 中国石油化工股份有限公司 | A kind of fluid chemical field distribution apparatus |
-
2017
- 2017-09-22 CN CN201710867173.7A patent/CN109529728B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4212835A (en) * | 1971-05-06 | 1980-07-15 | Exxon Research & Engineering Co. | Method and apparatus for introducing a quench stream in upflow gas-liquid contactors |
| EP0032235A1 (en) * | 1980-01-09 | 1981-07-22 | Degremont | Apparatus for the introduction of a gas into a liquid |
| EP0462753A1 (en) * | 1990-06-18 | 1991-12-27 | Exxon Research And Engineering Company | Improved interzone mixing device |
| EP0620186A1 (en) * | 1993-04-14 | 1994-10-19 | Metallgesellschaft Ag | Reactor for the generation of chlorine dioxide by reaction of alkali metal chlorate and acid |
| CN1630549A (en) * | 2000-12-21 | 2005-06-22 | 弗劳尔公司 | Methods and apparatus for mixing fluids |
| CN204051638U (en) * | 2014-08-28 | 2014-12-31 | 中国石油化工股份有限公司 | A kind of fluid chemical field distribution apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109529728A (en) | 2019-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100862940B1 (en) | Fluid distribution apparatus | |
| JP4709381B2 (en) | Fluid distribution and recovery system and method | |
| US3466151A (en) | Fluid exchange column | |
| KR101691680B1 (en) | Improved vapor-liquid contacting in co-current contacting apparatuses | |
| JP4528402B2 (en) | Apparatus for collecting and distributing liquids in a column | |
| US10010840B2 (en) | Apparatuses for distributing fluids in fluidized bed reactors | |
| JP2004524137A (en) | Mixing device including mixing vortex device | |
| TWI652111B (en) | Multi-tube radial bed reactor | |
| US20100101999A1 (en) | Novel distribution and collection system in a multistage column for equalizing the residence time on each stage | |
| KR101707234B1 (en) | Novel fluid distribution and collection system in a multistage column comprising a jet breaker | |
| JP6971265B2 (en) | New peripheral distribution or collection system for pseudo-moving bed separation method using N columns in series | |
| CN204051638U (en) | A kind of fluid chemical field distribution apparatus | |
| CN103285779B (en) | A kind of fluid chemical field distribution apparatus | |
| US8201988B2 (en) | Adsorber grid distributor box design | |
| CN109529728B (en) | Fluid mixing distributor, apparatus and container for solid particle bed | |
| CN102309864B (en) | Distillation tower feeding distributor | |
| JP7117129B2 (en) | A Novel Concept of Collection and Distribution Channels for Simulated Moving Bed Separation Processes Using N-Columns in Series | |
| JPH04227002A (en) | Gas/liquid feed device for counter-flow column | |
| US6471861B1 (en) | Sorption vessel with improved grid piping | |
| WO2010002383A1 (en) | Flow distribution apparatus | |
| KR101941727B1 (en) | Gas dispensing device for radial reactor | |
| US20140183281A1 (en) | Collar distributor for use in distributing a fluid | |
| CN208975753U (en) | A kind of fluid mixed distribution equipment | |
| KR101743369B1 (en) | Fluid Distribution Apparatus for Adsorbent Bed of Simulated Moving Bed Adsorption and Separation Process System | |
| CN102451647A (en) | Fluid distribution equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |