Distributed pressurized adsorption reactor

Abstract

The invention relates to the field of gas adsorption, and discloses a distributed pressurized adsorption reactor which comprises a tubular shell, a separator arranged in the shell, a first sealing plug and a second sealing plug, the separator divides the shell into at least two filling cavities arranged from inside to outside in the radial direction, and the first sealing plug and the second sealing plug are arranged in the shell. The at least two filling cavities can be respectively filled with solid adsorption materials with different particle sizes, the particle sizes of the solid adsorption materials are increased outwards in the radial direction, the first sealing plug is provided with an air inlet (11) communicated with each filling cavity, and the second sealing plug is provided with an air outlet (12) communicated with each filling cavity. By means of the technical scheme, a gas seepage channel is optimized, gas is promoted to be fully dispersed in the adsorption material, gas to be adsorbed can be more evenly distributed in the radial direction, the gas seepage process is strengthened, seepage and kinetic energy strengthening in the adsorption process are achieved, and the adsorption efficiency is improved.

Description

Technical Field

[0001] The invention relates to the field of gas adsorption, and in particular to a distributed pressurized adsorption reactor. Background Art

[0002] Due to its advantages such as simple process, low energy consumption and low cost, adsorption has become one of the most mature and widely used technologies in the field of gas separation and recovery. In addition to the manufacturing process and operating conditions, the efficiency and economy of the adsorption process usually depend on the characteristics of the adsorbent. At the same time, since the adsorption material is usually a porous medium, the gas passes through in the form of seepage, and it is usually necessary to increase the seepage driving force by means of pressurization, suction, etc.

[0003] However, as the adsorption process proceeds, the adsorbent at the inlet end gradually becomes saturated, and its pore structure and surface properties undergo significant changes, resulting in increased resistance between the gas and solid phases, smaller pore sizes, and other conditions that are not conducive to gas seepage. Therefore, it is necessary to reveal the mechanism of change in the seepage resistance of the adsorption material, improve the process and equipment, and propose methods for seepage enhancement and driving force compensation.

[0004] Currently, the enhancement of the adsorption process is mainly focused on increasing the specific surface area of ​​the adsorption material, enhancing the selectivity of the surface groups of the adsorption material, expanding the adsorption capacity, improving the anti-oxidation and corrosion resistance of the adsorption material, and reducing the energy consumption of adsorption and desorption. The gas adsorption process is enhanced by enhancing the adsorption performance of the adsorption material, but the gas adsorption process is rarely enhanced from the perspectives of changing the material's pore characteristics, assembly form, and gas-solid phase resistance. Summary of the invention

[0005] The purpose of the present invention is to overcome the problem of insufficient gas adsorption efficiency in the prior art.

[0006] In order to achieve the above-mentioned objectives, the present invention provides a distributed pressurized adsorption reactor, wherein the distributed pressurized adsorption reactor comprises a tubular shell, at least one tubular partition arranged in the shell, a first sealing plug arranged at the first end of the shell, and a second sealing plug arranged at the second end of the shell, wherein the partition separates at least two filling cavities arranged radially from the inside to the outside in the shell, and at least two of the filling cavities can be respectively filled with solid adsorption materials of different particle sizes, and the particle size of the solid adsorption material increases in the radial outward direction, and the first sealing plug is provided with an air inlet connected to each of the filling cavities, and the second sealing plug is provided with an air outlet connected to each of the filling cavities.

[0007] In some embodiments, the first sealing plug includes a first end cover and a first screen, the surface of the first end cover facing the shell is provided with a recessed portion, the first screen is connected to the surface of the first end cover facing the shell to form a first dispersion cavity, and the first dispersion cavity is connected to the air inlet and each of the filling cavities.

[0008] In some embodiments, the second sealing plug includes a second end cover and a second screen, the surface of the second end cover facing the shell is provided with a recessed portion, the second screen is connected to the surface of the second end cover facing the shell to form a second dispersion cavity, and the second dispersion cavity is connected to the air outlet and each of the filling cavities.

[0009] In some embodiments, the shell and the partition are respectively tapered circular tubes, and the large end of the shell and the large end of the partition are respectively arranged at the first end.

[0010] In some embodiments, the housing and the partition are coaxially arranged.

[0011] In some embodiments, the cone angles of the housing and the partition are the same.

[0012] In some embodiments, the inner diameter of the large end of the shell is 2-5 times the inner diameter of the small end, and the cone angle of the shell is 18°-22°.

[0013] In some embodiments, the inner diameter of the air inlet is 0.03-0.1 of the inner diameter of the large end of the shell, and the length of the first dispersion cavity is 0.1-0.2 of the inner diameter of the large end of the shell.

[0014] In some embodiments, the mesh size of the first sieve is greater than or equal to 80 meshes.

[0015] In some embodiments, the inner diameter of the gas outlet is 0.02-0.05 of the inner diameter of the small end of the shell, and the length of the second dispersion cavity is 0.05-0.1 of the inner diameter of the small end of the shell.

[0016] In some embodiments, the mesh number of the second sieve is greater than 40 mesh and less than 80 mesh.

[0017] In some embodiments, the distributed pressurized adsorption reactor is provided with only one separator, and the inner diameter of the large end of the separator is 0.4-0.6 of the inner diameter of the large end of the shell.

[0018] In some embodiments, the distributed pressurized adsorption reactor is only provided with two separators, the inner diameter of the large end of the inner separator is 0.25-0.33 of the inner diameter of the large end of the shell, and the inner diameter of the large end of the outer separator is 0.55-0.67 of the inner diameter of the large end of the shell.

[0019] In some embodiments, the distributed pressurized adsorption reactor includes a first connecting pipe arranged at the first end of the shell and a second connecting pipe arranged at the second end of the shell, the first sealing plug is arranged in the first connecting pipe, and the second sealing plug is arranged in the second connecting pipe.

[0020] In some embodiments, the partition is connected to the housing via a connecting rod.

[0021] Through the above technical scheme, the gas seepage channel is optimized, the gas is promoted to be fully dispersed in the adsorption material, the gas to be adsorbed can be more evenly distributed in the radial direction, the gas seepage process is strengthened, the seepage and kinetic energy of the adsorption process are enhanced, and the adsorption efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the distributed pressurized adsorption reactor described in the implementation scheme of this invention.

[0023] Description of Reference Numerals

[0024] 1 Shell 2 Partition

[0025] 3First sealing plug 4First end cover

[0026] 5The first screen 6The first pipe

[0027] 7 Second sealing plug 8 Second end cover

[0028] 9 second screen 10 second connecting pipe

[0029] 11 air inlet 12 air outlet

[0030] 13 first dispersion chamber 14 second dispersion chamber

[0031] 15 Connecting rod DETAILED DESCRIPTION

[0032] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0033] Embodiment 1

[0034] refer to Figure 1As shown, the present scheme provides a distributed pressurized adsorption reactor, wherein the distributed pressurized adsorption reactor comprises a tubular shell 1, at least one tubular partition 2 arranged in the shell 1, a first sealing plug 3 arranged at the first end of the shell 1, and a second sealing plug 7 arranged at the second end of the shell 1, wherein the partition 2 separates at least two filling cavities arranged radially from the inside to the outside in the shell 1, and at least two of the filling cavities can be respectively filled with solid adsorption materials of different particle sizes, and the particle size of the solid adsorption material increases in the radial outward direction, and the first sealing plug 3 is provided with an air inlet 11 connected to each of the filling cavities, and the second sealing plug 7 is provided with an air outlet 12 connected to each of the filling cavities.

[0035] The first sealing plug 3 and the second sealing plug 7 are respectively provided at both ends of the shell 1, thereby enclosing a receiving space. The tubular partition 2 is provided in the shell 1 and is located in the receiving space. If only one partition 2 is provided, it divides the receiving space into two filling cavities. If two or more partitions 2 are provided, these partitions 2 are nested in sequence, thereby dividing the receiving space into more filling cavities. No through hole is provided on the partition 2, and adjacent filling cavities cannot be connected through the partition 2.

[0036] In the radial direction from the inside to the outside, at least two filling cavities are arranged in sequence, and the particle size of the solid adsorption materials filled therein increases successively, that is, in any two adjacent filling cavities, the particle size of the solid adsorption material in the radially inner filling cavity is smaller than the particle size of the solid adsorption material in the radially outer filling cavity. Therefore, in the radial direction from the inside to the outside, the pores in the filling cavity increase successively, and the resistance effect on the gas decreases successively.

[0037] The gas inlet 11 is synchronously communicated with each filling cavity, allowing the gas to be distributed to each filling cavity in a specific ratio based on the resistance effect in the different filling cavities.

[0038] For ordinary adsorption chambers, the gas tends to converge near the central axis of the cavity and away from the edge of the cavity; in the present scheme, the pore size in the radially outer filling cavity is larger, the porosity is higher, and the resistance to the gas is smaller, which can make the gas more evenly distributed in the entire space in the radial direction, improve the permeability of the gas in the solid adsorption material, realize the seepage and kinetic energy enhancement of the adsorption process, and improve the adsorption efficiency.

[0039] In this scheme, the gas seepage channel is optimized to promote the full dispersion of gas in the adsorption material. The gas to be adsorbed can be distributed more evenly in the radial direction, which strengthens the gas seepage process, realizes the seepage and kinetic energy enhancement of the adsorption process, and improves the adsorption efficiency.

[0040] The first sealing plug 3 includes a first end cap 4 and a first screen 5. The surface of the first end cap 4 facing the shell 1 is provided with a recessed portion. The first screen 5 is connected to the surface of the first end cap 4 facing the shell 1 to form a first dispersion cavity 13. The first dispersion cavity 13 is connected to the air inlet 11 and each of the filling cavities. The first end cap 4 and the first screen 5 enclose the first dispersion cavity 13. The gas entering the first dispersion cavity 13 through the air inlet 11 is fully dispersed in the radial direction and passes through the first screen 5 to enter each filling cavity. The end of the partition 2 is connected to the first screen 5, so that each filling cavity is separated from each other to avoid leakage of the solid adsorption material therein. In other embodiments, a main pipeline connected to the air inlet 11 and a branch pipeline connected to each filling cavity can be formed in the first sealing plug 3, and the main pipeline and the branch pipeline are connected to each other. A detachable joint can be provided on the first end cap 4, and the air inlet 11 is provided in the joint.

[0041] Similarly, the second sealing plug 7 includes a second end cap 8 and a second screen 9, the surface of the second end cap 8 facing the shell 1 is provided with a recessed portion, the second screen 9 is connected to the surface of the second end cap 8 facing the shell 1 to form a second dispersion cavity 14, and the second dispersion cavity 14 is connected to the gas outlet 12 and each of the filling cavities. The second end cap 8 and the second screen 9 surround the second dispersion cavity 14, and the gas in each filling cavity passes through the second screen 9 into the second dispersion cavity 14, and then is discharged through the gas outlet 12. The end of the partition 2 is connected to the second screen 9, so that each filling cavity is separated from each other to avoid leakage of the solid adsorption material therein. In other embodiments, a main pipeline connected to the gas outlet 12 and a branch pipeline connected to each filling cavity can be formed in the second sealing plug 7, and the main pipeline and the branch pipeline are connected to each other. A detachable joint can be provided on the second end cap 8, and the gas outlet 12 is provided in the joint.

[0042] The shell 1 and the partition 2 are respectively tapered circular tubes, and the large end of the shell 1 and the large end of the partition 2 are respectively arranged at the first end. Figure 1 As shown, the left end of the shell 1 is the large end, and the right end is the small end, and the left end of the separator 2 is the large end, and the right end is the small end. The shell 1 is formed into a tapered tubular shape, which can achieve: reducing the pressure difference between the inlet end and the outlet end, improving the gas permeation capacity; expanding the gas sweep volume in the adsorption reactor, improving the adsorbent saturation rate; increasing the outlet gas pressure, and realizing gas kinetic energy enhancement.

[0043] Furthermore, the shell 1 and the partition 2 are coaxially arranged. The central axes of the shell 1 and the partition 2 are coaxially arranged, so that each filling cavity forms a centrally symmetrical structure, which is conducive to more uniform distribution of gas in the radial direction.

[0044] The shell 1 and the partition 2 have the same cone angle.

[0045] Optionally, the inner diameter of the large end of the shell 1 is twice the inner diameter of the small end, and the cone angle of the shell 1 is 18°-22°. The inner diameter of the large end of the shell 1 does not exceed 30 cm.

[0046] Optionally, the inner diameter of the air inlet 11 is 0.03-0.1 of the inner diameter of the large end of the shell 1 , and the length of the first dispersion cavity 13 is 0.1-0.2 of the inner diameter of the large end of the shell 1 .

[0047] Optionally, the mesh number of the first sieve 5 is greater than or equal to 80 meshes.

[0048] The inner diameter of the gas outlet 12 is 0.02-0.05 of the inner diameter of the small end of the shell 1 , and the length of the second dispersion cavity 14 is 0.05-0.1 of the inner diameter of the small end of the shell 1 .

[0049] The mesh number of the second screen 9 is greater than 40 meshes and less than 80 meshes, so as to reduce the kinetic energy loss of the gas at the outlet end.

[0050] In some embodiments, the distributed pressurized adsorption reactor is provided with only one separator 2 , and the inner diameter of the large end of the separator 2 is 0.4-0.6 of the inner diameter of the large end of the shell 1 .

[0051] In other embodiments, the distributed pressurized adsorption reactor is only provided with two separators 2, the inner diameter of the large end of the inner separator 2 is 0.25-0.33 of the inner diameter of the large end of the shell 1, and the inner diameter of the large end of the outer separator 2 is 0.55-0.67 of the inner diameter of the large end of the shell 1.

[0052] In addition, the distributed pressure boost adsorption reactor includes a first connecting pipe 6 arranged at the first end of the shell 1 and a second connecting pipe 10 arranged at the second end of the shell 1, the first sealing plug 3 is arranged in the first connecting pipe 6, and the second sealing plug 7 is arranged in the second connecting pipe 10. The first connecting pipe 6 can be welded (or screwed) to the first end of the shell 1, the first sealing plug 3 is accommodated in the first connecting pipe 6, and a sealing ring can be arranged on the outer periphery of the first sealing plug 3 and / or the inner periphery of the first connecting pipe 6 to improve the sealing effect; the second connecting pipe 10 can be welded (or screwed) to the second end of the shell 1, the second sealing plug 7 is accommodated in the second connecting pipe 10, and a sealing ring can be arranged on the outer periphery of the second sealing plug 7 and / or the inner periphery of the second connecting pipe 10 to improve the sealing effect.

[0053] In addition, the partition 2 is connected to the shell 1 via a connecting rod 15. The connecting rod 15 can extend in the radial direction, the partition 2 is connected to the connecting rod 15, and the radial outer end of the connecting rod 15 is connected to the inner surface of the shell 1, so that the partition 2 and the shell 1 are fixedly connected.

[0054] Embodiment 2

[0055] refer to Figure 1 As shown, the present scheme provides a distributed pressurized adsorption reactor, wherein the distributed pressurized adsorption reactor comprises a tubular shell 1, at least one tubular partition 2 arranged in the shell 1, a first sealing plug 3 arranged at the first end of the shell 1, and a second sealing plug 7 arranged at the second end of the shell 1, wherein the partition 2 separates at least two filling cavities arranged radially from the inside to the outside in the shell 1, and at least two of the filling cavities can be respectively filled with solid adsorption materials of different particle sizes, and the particle size of the solid adsorption material increases in the radial outward direction, and the first sealing plug 3 is provided with an air inlet 11 connected to each of the filling cavities, and the second sealing plug 7 is provided with an air outlet 12 connected to each of the filling cavities.

[0056] The first sealing plug 3 and the second sealing plug 7 are respectively provided at both ends of the shell 1, thereby enclosing a receiving space. The tubular partition 2 is provided in the shell 1 and is located in the receiving space. If only one partition 2 is provided, it divides the receiving space into two filling cavities. If two or more partitions 2 are provided, these partitions 2 are nested in sequence, thereby dividing the receiving space into more filling cavities. No through hole is provided on the partition 2, and adjacent filling cavities cannot be connected through the partition 2.

[0057] In the radial direction from the inside to the outside, at least two filling cavities are arranged in sequence, and the particle size of the solid adsorption materials filled therein increases successively, that is, in any two adjacent filling cavities, the particle size of the solid adsorption material in the radially inner filling cavity is smaller than the particle size of the solid adsorption material in the radially outer filling cavity. Therefore, in the radial direction from the inside to the outside, the pores in the filling cavity increase successively, and the resistance effect on the gas decreases successively.

[0058] The gas inlet 11 is synchronously communicated with each filling cavity, allowing the gas to be distributed to each filling cavity in a specific ratio based on the resistance effect in the different filling cavities.

[0059] For ordinary adsorption chambers, the gas tends to converge near the central axis of the cavity and away from the edge of the cavity; in the present scheme, the pore size in the radially outer filling cavity is larger, the porosity is higher, and the resistance to the gas is smaller, which can make the gas more evenly distributed in the entire space in the radial direction, improve the permeability of the gas in the solid adsorption material, realize the seepage and kinetic energy enhancement of the adsorption process, and improve the adsorption efficiency.

[0060] In this scheme, the gas seepage channel is optimized to promote the full dispersion of gas in the adsorption material. The gas to be adsorbed can be distributed more evenly in the radial direction, which strengthens the gas seepage process, realizes the seepage and kinetic energy enhancement of the adsorption process, and improves the adsorption efficiency.

[0061] The first sealing plug 3 includes a first end cap 4 and a first screen 5. The surface of the first end cap 4 facing the shell 1 is provided with a recessed portion. The first screen 5 is connected to the surface of the first end cap 4 facing the shell 1 to form a first dispersion cavity 13. The first dispersion cavity 13 is connected to the air inlet 11 and each of the filling cavities. The first end cap 4 and the first screen 5 enclose the first dispersion cavity 13. The gas entering the first dispersion cavity 13 through the air inlet 11 is fully dispersed in the radial direction and passes through the first screen 5 to enter each filling cavity. The end of the partition 2 is connected to the first screen 5, so that each filling cavity is separated from each other to avoid leakage of the solid adsorption material therein. In other embodiments, a main pipeline connected to the air inlet 11 and a branch pipeline connected to each filling cavity can be formed in the first sealing plug 3, and the main pipeline and the branch pipeline are connected to each other. A detachable joint can be provided on the first end cap 4, and the air inlet 11 is provided in the joint.

[0062] Similarly, the second sealing plug 7 includes a second end cap 8 and a second screen 9, the surface of the second end cap 8 facing the shell 1 is provided with a recessed portion, the second screen 9 is connected to the surface of the second end cap 8 facing the shell 1 to form a second dispersion cavity 14, and the second dispersion cavity 14 is connected to the gas outlet 12 and each of the filling cavities. The second end cap 8 and the second screen 9 surround the second dispersion cavity 14, and the gas in each filling cavity passes through the second screen 9 into the second dispersion cavity 14, and then is discharged through the gas outlet 12. The end of the partition 2 is connected to the second screen 9, so that each filling cavity is separated from each other to avoid leakage of the solid adsorption material therein. In other embodiments, a main pipeline connected to the gas outlet 12 and a branch pipeline connected to each filling cavity can be formed in the second sealing plug 7, and the main pipeline and the branch pipeline are connected to each other. A detachable joint can be provided on the second end cap 8, and the gas outlet 12 is provided in the joint.

[0063] The shell 1 and the partition 2 are respectively tapered circular tubes, and the large end of the shell 1 and the large end of the partition 2 are respectively arranged at the first end. Figure 1 As shown, the left end of the shell 1 is the large end, and the right end is the small end, and the left end of the separator 2 is the large end, and the right end is the small end. The shell 1 is formed into a tapered tubular shape, which can achieve: reducing the pressure difference between the inlet end and the outlet end, improving the gas permeation capacity; expanding the gas sweep volume in the adsorption reactor, improving the adsorbent saturation rate; increasing the outlet gas pressure, and realizing gas kinetic energy enhancement.

[0064] Furthermore, the shell 1 and the partition 2 are coaxially arranged. The central axes of the shell 1 and the partition 2 are coaxially arranged, so that each filling cavity forms a centrally symmetrical structure, which is conducive to more uniform distribution of gas in the radial direction.

[0065] The shell 1 and the partition 2 have the same cone angle.

[0066] Optionally, the inner diameter of the large end of the shell 1 is three times the inner diameter of the small end, and the cone angle of the shell 1 is 18°-22°. The inner diameter of the large end of the shell 1 does not exceed 30 cm.

[0067] Optionally, the inner diameter of the air inlet 11 is 0.03-0.1 of the inner diameter of the large end of the shell 1 , and the length of the first dispersion cavity 13 is 0.1-0.2 of the inner diameter of the large end of the shell 1 .

[0068] Optionally, the mesh number of the first sieve 5 is greater than or equal to 80 meshes.

[0069] The inner diameter of the gas outlet 12 is 0.02-0.05 of the inner diameter of the small end of the shell 1 , and the length of the second dispersion cavity 14 is 0.05-0.1 of the inner diameter of the small end of the shell 1 .

[0070] The mesh number of the second screen 9 is greater than 40 meshes and less than 80 meshes, so as to reduce the kinetic energy loss of the gas at the outlet end.

[0071] In some embodiments, the distributed pressurized adsorption reactor is provided with only one separator 2 , and the inner diameter of the large end of the separator 2 is 0.4-0.6 of the inner diameter of the large end of the shell 1 .

[0072] In other embodiments, the distributed pressurized adsorption reactor is only provided with two separators 2, the inner diameter of the large end of the inner separator 2 is 0.25-0.33 of the inner diameter of the large end of the shell 1, and the inner diameter of the large end of the outer separator 2 is 0.55-0.67 of the inner diameter of the large end of the shell 1.

[0073] In addition, the distributed pressure boost adsorption reactor includes a first connecting pipe 6 arranged at the first end of the shell 1 and a second connecting pipe 10 arranged at the second end of the shell 1, the first sealing plug 3 is arranged in the first connecting pipe 6, and the second sealing plug 7 is arranged in the second connecting pipe 10. The first connecting pipe 6 can be welded (or screwed) to the first end of the shell 1, the first sealing plug 3 is accommodated in the first connecting pipe 6, and a sealing ring can be arranged on the outer periphery of the first sealing plug 3 and / or the inner periphery of the first connecting pipe 6 to improve the sealing effect; the second connecting pipe 10 can be welded (or screwed) to the second end of the shell 1, the second sealing plug 7 is accommodated in the second connecting pipe 10, and a sealing ring can be arranged on the outer periphery of the second sealing plug 7 and / or the inner periphery of the second connecting pipe 10 to improve the sealing effect.

[0074] In addition, the partition 2 is connected to the shell 1 via a connecting rod 15. The connecting rod 15 can extend in the radial direction, the partition 2 is connected to the connecting rod 15, and the radial outer end of the connecting rod 15 is connected to the inner surface of the shell 1, so that the partition 2 and the shell 1 are fixedly connected.

[0075] Embodiment 3

[0076] refer to Figure 1As shown, the present scheme provides a distributed pressurized adsorption reactor, wherein the distributed pressurized adsorption reactor comprises a tubular shell 1, at least one tubular partition 2 arranged in the shell 1, a first sealing plug 3 arranged at the first end of the shell 1, and a second sealing plug 7 arranged at the second end of the shell 1, wherein the partition 2 separates at least two filling cavities arranged radially from the inside to the outside in the shell 1, and at least two of the filling cavities can be respectively filled with solid adsorption materials of different particle sizes, and the particle size of the solid adsorption material increases in the radial outward direction, and the first sealing plug 3 is provided with an air inlet 11 connected to each of the filling cavities, and the second sealing plug 7 is provided with an air outlet 12 connected to each of the filling cavities.

[0077] The first sealing plug 3 and the second sealing plug 7 are respectively provided at both ends of the shell 1, thereby enclosing a receiving space. The tubular partition 2 is provided in the shell 1 and is located in the receiving space. If only one partition 2 is provided, it divides the receiving space into two filling cavities. If two or more partitions 2 are provided, these partitions 2 are nested in sequence, thereby dividing the receiving space into more filling cavities. No through hole is provided on the partition 2, and adjacent filling cavities cannot be connected through the partition 2.

[0078] In the radial direction from the inside to the outside, at least two filling cavities are arranged in sequence, and the particle size of the solid adsorption materials filled therein increases successively, that is, in any two adjacent filling cavities, the particle size of the solid adsorption material in the radially inner filling cavity is smaller than the particle size of the solid adsorption material in the radially outer filling cavity. Therefore, in the radial direction from the inside to the outside, the pores in the filling cavity increase successively, and the resistance effect on the gas decreases successively.

[0079] The gas inlet 11 is synchronously communicated with each filling cavity, allowing the gas to be distributed to each filling cavity in a specific ratio based on the resistance effect in the different filling cavities.

[0080] For ordinary adsorption chambers, the gas tends to converge near the central axis of the cavity and away from the edge of the cavity; in the present scheme, the pore size in the radially outer filling cavity is larger, the porosity is higher, and the resistance to the gas is smaller, which can make the gas more evenly distributed in the entire space in the radial direction, improve the permeability of the gas in the solid adsorption material, realize the seepage and kinetic energy enhancement of the adsorption process, and improve the adsorption efficiency.

[0081] In this scheme, the gas seepage channel is optimized to promote the full dispersion of gas in the adsorption material. The gas to be adsorbed can be distributed more evenly in the radial direction, which strengthens the gas seepage process, realizes the seepage and kinetic energy enhancement of the adsorption process, and improves the adsorption efficiency.

[0082] The first sealing plug 3 includes a first end cap 4 and a first screen 5. The surface of the first end cap 4 facing the shell 1 is provided with a recessed portion. The first screen 5 is connected to the surface of the first end cap 4 facing the shell 1 to form a first dispersion cavity 13. The first dispersion cavity 13 is connected to the air inlet 11 and each of the filling cavities. The first end cap 4 and the first screen 5 enclose the first dispersion cavity 13. The gas entering the first dispersion cavity 13 through the air inlet 11 is fully dispersed in the radial direction and passes through the first screen 5 to enter each filling cavity. The end of the partition 2 is connected to the first screen 5, so that each filling cavity is separated from each other to avoid leakage of the solid adsorption material therein. In other embodiments, a main pipeline connected to the air inlet 11 and a branch pipeline connected to each filling cavity can be formed in the first sealing plug 3, and the main pipeline and the branch pipeline are connected to each other. A detachable joint can be provided on the first end cap 4, and the air inlet 11 is provided in the joint.

[0083] Similarly, the second sealing plug 7 includes a second end cap 8 and a second screen 9, the surface of the second end cap 8 facing the shell 1 is provided with a recessed portion, the second screen 9 is connected to the surface of the second end cap 8 facing the shell 1 to form a second dispersion cavity 14, and the second dispersion cavity 14 is connected to the gas outlet 12 and each of the filling cavities. The second end cap 8 and the second screen 9 surround the second dispersion cavity 14, and the gas in each filling cavity passes through the second screen 9 into the second dispersion cavity 14, and then is discharged through the gas outlet 12. The end of the partition 2 is connected to the second screen 9, so that each filling cavity is separated from each other to avoid leakage of the solid adsorption material therein. In other embodiments, a main pipeline connected to the gas outlet 12 and a branch pipeline connected to each filling cavity can be formed in the second sealing plug 7, and the main pipeline and the branch pipeline are connected to each other. A detachable joint can be provided on the second end cap 8, and the gas outlet 12 is provided in the joint.

[0084] The shell 1 and the partition 2 are respectively tapered circular tubes, and the large end of the shell 1 and the large end of the partition 2 are respectively arranged at the first end. Figure 1 As shown, the left end of the shell 1 is the large end, and the right end is the small end, and the left end of the separator 2 is the large end, and the right end is the small end. The shell 1 is formed into a tapered tubular shape, which can achieve: reducing the pressure difference between the inlet end and the outlet end, improving the gas permeation capacity; expanding the gas sweep volume in the adsorption reactor, improving the adsorbent saturation rate; increasing the outlet gas pressure, and realizing gas kinetic energy enhancement.

[0085] Furthermore, the shell 1 and the partition 2 are coaxially arranged. The central axes of the shell 1 and the partition 2 are coaxially arranged, so that each filling cavity forms a centrally symmetrical structure, which is conducive to more uniform distribution of gas in the radial direction.

[0086] The shell 1 and the partition 2 have the same cone angle.

[0087] Optionally, the inner diameter of the large end of the shell 1 is 4 or 5 times the inner diameter of the small end, and the cone angle of the shell 1 is 18°-22°. The inner diameter of the large end of the shell 1 does not exceed 30 cm.

[0088] Optionally, the inner diameter of the air inlet 11 is 0.03-0.1 of the inner diameter of the large end of the shell 1 , and the length of the first dispersion cavity 13 is 0.1-0.2 of the inner diameter of the large end of the shell 1 .

[0089] Optionally, the mesh number of the first sieve 5 is greater than or equal to 80 meshes.

[0090] The inner diameter of the gas outlet 12 is 0.02-0.05 of the inner diameter of the small end of the shell 1 , and the length of the second dispersion cavity 14 is 0.05-0.1 of the inner diameter of the small end of the shell 1 .

[0091] The mesh number of the second screen 9 is greater than 40 meshes and less than 80 meshes, so as to reduce the kinetic energy loss of the gas at the outlet end.

[0092] In some embodiments, the distributed pressurized adsorption reactor is provided with only one separator 2 , and the inner diameter of the large end of the separator 2 is 0.4-0.6 of the inner diameter of the large end of the shell 1 .

[0093] In other embodiments, the distributed pressurized adsorption reactor is only provided with two separators 2, the inner diameter of the large end of the inner separator 2 is 0.25-0.33 of the inner diameter of the large end of the shell 1, and the inner diameter of the large end of the outer separator 2 is 0.55-0.67 of the inner diameter of the large end of the shell 1.

[0094] In addition, the distributed pressure boost adsorption reactor includes a first connecting pipe 6 arranged at the first end of the shell 1 and a second connecting pipe 10 arranged at the second end of the shell 1, the first sealing plug 3 is arranged in the first connecting pipe 6, and the second sealing plug 7 is arranged in the second connecting pipe 10. The first connecting pipe 6 can be welded (or screwed) to the first end of the shell 1, the first sealing plug 3 is accommodated in the first connecting pipe 6, and a sealing ring can be arranged on the outer periphery of the first sealing plug 3 and / or the inner periphery of the first connecting pipe 6 to improve the sealing effect; the second connecting pipe 10 can be welded (or screwed) to the second end of the shell 1, the second sealing plug 7 is accommodated in the second connecting pipe 10, and a sealing ring can be arranged on the outer periphery of the second sealing plug 7 and / or the inner periphery of the second connecting pipe 10 to improve the sealing effect.

[0095] In addition, the partition 2 is connected to the shell 1 via a connecting rod 15. The connecting rod 15 can extend in the radial direction, the partition 2 is connected to the connecting rod 15, and the radial outer end of the connecting rod 15 is connected to the inner surface of the shell 1, so that the partition 2 and the shell 1 are fixedly connected.

[0096] The present scheme provides a distributed pressurized adsorption reactor. The multi-layer tapered filling cavity of the present scheme realizes the distributed filling of adsorption materials of different particle sizes, and realizes the seepage and kinetic energy enhancement of the adsorption process; the sealing plugs in the present scheme are divided into large-mouth sealing plugs and small-mouth sealing plugs to realize gas injection / exhaust and dispersion, and compaction of adsorption materials; by constraining the size ratios of the shell, partitions, two end openings, gas inlet and outlet, etc., the distributed filling of adsorption materials is realized, and the gas adsorption and seepage process enhancement effect is fully exerted; gas dispersion cavities are set in the sealing plugs at both ends to realize gas dispersion at the inlet end, so as to increase the contact area between the gas and the adsorption material, and at the same time reduce the kinetic energy loss of the gas at the outlet end, so as to enhance the gas seepage capacity.

[0097] Under the same capacity scale, the distributed pressurized adsorption reactor provided by this scheme has the following positive effects:

[0098] (1) Reduce the pressure difference between the inlet and outlet and improve the gas permeability;

[0099] (2) Expand the gas sweep volume in the adsorption chamber and increase the adsorbent saturation rate;

[0100] (3) Increase the outlet gas pressure to enhance the gas kinetic energy.

[0101] According to the results of previous tests, under the conditions of the same gas, the same gas volume, the same reaction chamber volume, and the same adsorption material, the inlet and outlet pressure drop of this device is reduced by more than 27% compared with the hollow cylindrical adsorption tube, and the saturated adsorption capacity of the adsorption material is increased by more than 13%, which has a significant performance improvement.

[0102] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited thereto. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, including the combination of various specific technical features in any suitable manner. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple modifications and combinations should also be regarded as the contents disclosed by the present invention and belong to the protection scope of the present invention.

Claims

1. A distributed pressurized adsorption reactor, characterized in that: The distributed pressurized adsorption reactor comprises a tubular shell (1), at least one tubular partition (2) arranged in the shell (1), a first sealing plug (3) arranged at the first end of the shell (1), and a second sealing plug (7) arranged at the second end of the shell (1), wherein the partition (2) separates at least two loading cavities arranged radially from the inside to the outside in the shell (1), and at least two of the loading cavities can be respectively filled with solid adsorption materials of different particle sizes, and the particle size of the solid adsorption materials increases in the radial outward direction, and the first sealing plug (3) is provided with an air inlet (11) connected to each of the loading cavities, and the second sealing plug (7) is provided with an air outlet (12) connected to each of the loading cavities.

2. The distributed pressurized adsorption reactor according to claim 1, characterized in that: The first sealing plug (3) comprises a first end cover (4) and a first screen (5), wherein a surface of the first end cover (4) facing the shell (1) is provided with a recessed portion, and the first screen (5) is connected to the surface of the first end cover (4) facing the shell (1) to form a first dispersion cavity (13), and the first dispersion cavity (13) is connected to the air inlet (11) and each of the filling cavities.

3. The distributed pressurized adsorption reactor according to claim 2, characterized in that: The second sealing plug (7) comprises a second end cover (8) and a second screen (9), wherein the surface of the second end cover (8) facing the shell (1) is provided with a recessed portion, and the second screen (9) is connected to the surface of the second end cover (8) facing the shell (1) to form a second dispersion cavity (14), and the second dispersion cavity (14) is connected to the air outlet (12) and each of the filling cavities.

4. The distributed pressurized adsorption reactor according to claim 3, characterized in that: The shell (1) and the partition (2) are respectively tapered circular tubes, and the large end of the shell (1) and the large end of the partition (2) are respectively arranged at the first end.

5. The distributed pressurized adsorption reactor according to claim 4, characterized in that: The shell (1) and the partition (2) are coaxially arranged.

6. The distributed pressurized adsorption reactor according to claim 5, characterized in that: The shell (1) and the partition (2) have the same taper angle.

7. The distributed pressurized adsorption reactor according to claim 6, characterized in that: The inner diameter of the large end of the shell (1) is 2-5 times the inner diameter of the small end, and the cone angle of the shell (1) is 18°-22°.

8. The distributed pressurized adsorption reactor according to claim 6, characterized in that: The inner diameter of the air inlet (11) is 0.03-0.1 of the inner diameter of the large end of the shell (1), and the length of the first dispersion cavity (13) is 0.1-0.2 of the inner diameter of the large end of the shell (1).

9. The distributed pressurized adsorption reactor according to claim 6, characterized in that: The mesh number of the first sieve (5) is greater than or equal to 80 meshes.

10. The distributed pressurized adsorption reactor according to claim 6, characterized in that: The inner diameter of the gas outlet (12) is 0.02-0.05 of the inner diameter of the small end of the shell (1), and the length of the second dispersion cavity (14) is 0.05-0.1 of the inner diameter of the small end of the shell (1).

11. The distributed pressurized adsorption reactor according to claim 6, characterized in that: The mesh number of the second sieve (9) is greater than 40 meshes and less than 80 meshes.

12. The distributed pressurized adsorption reactor according to claim 6, characterized in that: The distributed pressurized adsorption reactor is provided with only one separator (2), and the inner diameter of the large end of the separator (2) is 0.4-0.6 of the inner diameter of the large end of the shell (1).

13. The distributed pressurized adsorption reactor according to claim 6, characterized in that: The distributed pressurized adsorption reactor is provided with only two separators (2), the inner diameter of the large end of the inner separator (2) is 0.25-0.33 of the inner diameter of the large end of the shell (1), and the inner diameter of the large end of the outer separator (2) is 0.55-0.67 of the inner diameter of the large end of the shell (1).

14. The distributed pressurized adsorption reactor according to claim 1, characterized in that: The distributed pressurized adsorption reactor comprises a first connecting pipe (6) arranged at the first end of the shell (1) and a second connecting pipe (10) arranged at the second end of the shell (1), the first sealing plug (3) being arranged in the first connecting pipe (6), and the second sealing plug (7) being arranged in the second connecting pipe (10).

15. The distributed pressurized adsorption reactor according to claim 1, characterized in that: The partition (2) is connected to the housing (1) via a connecting rod (15).

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