A honeycomb zeolite structure with high adsorption performance

Abstract

The utility model relates to the field of waste gas treatment, and in particular to a honeycomb zeolite structure with high adsorption performance. It solves the problem that the adsorption slot part of the existing zeolite structure is a hexagonal column structure, and the gas may flow out in a straight line during the internal circulation of the gas, the zeolite cannot be completely adsorbed, and some residual waste gas may flow out during the treatment process. The adsorbent of the present application is in the shape of a truncated triconahedron, and the interior of the adsorbent is a cavity structure. Each group of hexagonal face through holes of the adsorbent is provided with a hexagonal groove connected to the interior thereof, and the outermost and adjacent two groups of adsorbents are connected through adjacent hexagonal grooves. The internal face structure of the adsorbent is set at a bending angle, and the gas molecules will collide with the bending surface during the circulation process, so that the gas molecules will be angularly offset during the circulation process, and the gas body can fully contact the inner wall of the adsorbent, and its structural structure can increase the adsorption force of the zeolite.

Description

Technical Field

[0001] The utility model relates to the field of waste gas treatment, in particular to a honeycomb zeolite structure with high adsorption performance. Background Art

[0002] The main material of honeycomb zeolite molecular sieve is natural zeolite, which is an inorganic microporous material composed of SiO2, Al2O3 and alkaline metal or alkaline earth metal. Its internal pore volume accounts for 40-50% of the total volume, and the specific surface area is 300-1000m2 / g. It has the characteristics of high temperature resistance, non-flammability, good thermal stability and hydrothermal stability. It is an efficient molecular sieve carrier with good adsorption performance, no secondary pollution, and high-temperature regeneration. It is 40% more efficient than similar activated carbon. It is widely used in adsorption, separation, catalysis and environmental fields, and is more suitable for large air volume and low concentration of organic waste gas treatment. The adsorption tank part of the existing zeolite is a hexagonal column structure. During the internal circulation of gas, the gas may flow out in a straight line, and the zeolite cannot be completely adsorbed. Some waste gas may remain in the process of treatment. Utility Model Content

[0003] (1) Technical issues to be solved

[0004] In order to overcome the problem that the adsorption tank part of the existing zeolite structure is a hexagonal column structure, the gas may flow out in a straight line during the internal circulation, the zeolite cannot be completely adsorbed, and some waste gas may remain and flow out during the treatment process.

[0005] (2) Technical solution

[0006] The technical solution of the utility model is: a honeycomb zeolite structure with high adsorption performance, including a zeolite body; and also including a plurality of groups of adsorbents, wherein the adsorbents are in the shape of truncated triaconta, and the interior of the adsorbents is a cavity structure;

[0007] The surface of the adsorbent is provided with a plurality of through holes, the inner section of the through holes is in the shape of a polygonal column, and the outer cross-sectional area of ​​the through holes is larger than the inner cross-sectional area of ​​the through holes.

[0008] Preferably, the internal surface structure of the adsorbent is set at a bending angle. During the flow, gas molecules will collide with the bending surface, causing an angle deviation during the flow of gas molecules. The gas molecules can fully contact the inner wall of the adsorbent, and its structural composition can increase the adsorption force of the zeolite.

[0009] Furthermore, each group of through holes on the hexagonal surface of the adsorbent is provided with a hexagonal groove connected to the interior thereof, and the gas flows directly from the hexagonal grooves of one group of adsorbents to the next group of adsorbents.

[0010] Furthermore, several groups of adsorbent bodies are arranged in sequence from the outside to the inside, and the sizes of the several groups of adsorbent bodies are equidistantly reduced. The slots of the several groups of adsorbent bodies that are equidistantly reduced and arranged from the outside to the inside form a hexagonal cone column. The hexagonal cone column has a large inlet and a small outlet. When the gas enters the interior of the adsorbent, the gas can be retained inside for a longer time.

[0011] Furthermore, the two outermost and adjacent groups of adsorbents are connected through adjacent hexagonal grooves, and the direct gas flows from the hexagonal grooves of one group of adsorbents to the next group of adsorbents, so that the unadsorbed gas enters the next group for adsorption.

[0012] Furthermore, a plurality of groups of cylindrical grooves are provided on the surface of the zeolite body, the plurality of groups of cylindrical grooves are arranged in a rectangular array, a plurality of groups of adsorbents are fixed on the inner walls of the cylindrical grooves, and the interior of the cylindrical grooves is used to fix the plurality of groups of adsorbents.

[0013] Furthermore, two sets of fixed walls are fixed on both side surfaces of the zeolite body, and the fixed walls can fix the structure on the inner wall of the equipment.

[0014] (3) Beneficial effects

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The internal surface structure of the adsorbent is set at a bending angle. During the flow process, the gas molecules will collide with the bending surface, which causes the angle of gas molecules to deviate during the flow process. The gas body can fully contact the inner wall of the adsorbent, and its structural composition can increase the adsorption force of zeolite;

[0017] 2. Several groups of slots of the adsorbent that are equidistantly reduced and arranged from outside to inside form a hexagonal cone column. The hexagonal cone column has a large inlet and a small outlet. When the gas enters the adsorbent, the gas can be retained inside for a longer time, which can further increase its adsorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 What is shown is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 Shown is a schematic diagram of the structure of the zeolite body and several groups of adsorbents of the utility model;

[0020] Figure 3 Shown are schematic diagrams of the structures of several groups of adsorbents of the utility model;

[0021] Figure 4 Shown are schematic cross-sectional views of several groups of adsorbents of the utility model;

[0022] Figure 5 What is shown is a cross-sectional schematic diagram of a group of adsorbents of the utility model;

[0023] Figure 6 What is shown is a schematic diagram of the structure of a group of adsorbents of the utility model.

[0024] Explanation of reference numerals: 1-zeolite body, 2-adsorbent body, 3-hexagonal groove, 4-cylindrical groove, 5-fixed wall. DETAILED DESCRIPTION

[0025] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0026] Embodiment 1:

[0027] See also Figure 1-6 The utility model provides an embodiment: a honeycomb zeolite structure with high adsorption performance, including a zeolite body 1; and also including a plurality of groups of adsorbents 2, wherein the adsorbent 2 is in the shape of a truncated tricona, the interior of the adsorbent 2 is a cavity structure, and the surface of the adsorbent 2 is provided with a plurality of groups of through holes, the inner section of the through hole is in the shape of a polygonal column, the outer cross-sectional area of ​​the through hole is larger than the inner cross-sectional area of ​​the through hole, each group of hexagonal through holes of the adsorbent 2 is provided with a hexagonal groove 3 connected with the interior thereof, the plurality of groups of adsorbents 2 are arranged in sequence from the outside to the inside, and the sizes of the plurality of groups of adsorbents 2 are equidistantly reduced, the outermost and adjacent two groups of adsorbents 2 are connected through adjacent hexagonal grooves 3, and the main materials of the zeolite body 1 and the adsorbent 2 are both natural zeolites, which are inorganic microporous materials composed of SiO2, Al2O3 and alkaline metals or alkaline earth metals. The structure of the adsorbent 2 can be produced by a three-dimensional printing device. When the exhaust gas flows into the interior of the adsorbent 2, since the internal surface structure of the adsorbent 2 is set at a bending angle, the gas molecules will collide with the bending surface during the flow, causing an angle deviation during the flow of the gas molecules. The gas body can fully contact the inner wall of the adsorbent 2, thereby increasing the adsorption force of the zeolite. During the flow of the straight-line flowing gas, the gas flows through the hexagonal grooves 3 on the opposite sides. The straight-through gas flows from the hexagonal grooves 3 of one group of adsorbents 2 to the next group of adsorbents 2, and the gas is adsorbed until it is completely adsorbed by the zeolite body 1 and the adsorbent 2. Several groups of equally spaced slots of the adsorbent 2 that are arranged from the outside to the inside form a hexagonal cone column. The hexagonal cone column has a large inlet and a small outlet. When the gas enters the interior of the adsorbent 2, its adsorption effect can be further increased.

[0028] Embodiment 2:

[0029] See also Figure 1-2In this embodiment, a plurality of groups of cylindrical grooves 4 are provided on the surface of the zeolite body 1, and the plurality of groups of cylindrical grooves 4 are arranged in a rectangular array. A plurality of groups of adsorbents 2 are fixed on the inner walls of the cylindrical grooves 4. Two groups of fixed walls 5 are fixed on both side surfaces of the zeolite body 1. The fixed walls 5 on both sides of the zeolite body 1 are used to fix the device body, and the interior of the cylindrical grooves 4 is used to fix the plurality of groups of adsorbents 2.

[0030] When the exhaust gas flows into the interior of the adsorbent 2, since the internal surface structure of the adsorbent 2 is set at a bending angle, the gas molecules will collide with the bending surface during the flow process, causing the gas molecules to deviate at an angle during the flow process. The gas split body can fully contact the inner wall of the adsorbent 2, thereby increasing the adsorption force of the zeolite. During the flow of the straight-line flowing gas, the gas flows through the hexagonal grooves 3 on the opposite sides. The straight-through gas flows from the hexagonal grooves 3 of one group of adsorbents 2 to the next group of adsorbents 2, and the gas is adsorbed until it is completely adsorbed by the zeolite body 1 and the adsorbent 2. In addition, several groups of slots of the adsorbent 2 that are equidistantly reduced and arranged from the outside to the inside form a hexagonal cone column, the hexagonal cone column has a large inlet and a small outlet, and the gas can further increase its adsorption effect in the process of entering the interior of the adsorbent 2.

[0031] The fixing walls 5 on both sides of the zeolite body 1 are used to fix the device body, and the inside of the cylindrical groove 4 is used to fix a plurality of groups of adsorbents 2 .

[0032] Through the above steps, the internal surface structure of the adsorbent 2 is set at a bending angle. During the flow, the gas molecules will collide with the bending surface, causing an angle deviation during the flow of the gas molecules. The gas body can fully contact the inner wall of the adsorbent 2, thereby increasing the adsorption force of the zeolite. Several groups of slots of the adsorbent 2 that are equidistantly reduced and arranged from the outside to the inside form a hexagonal cone column. The hexagonal cone column has a large inlet and a small outlet. During the process of the gas entering the adsorbent 2, the gas can be retained inside for a longer time, thereby further increasing its adsorption effect.

[0033] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A honeycomb zeolite structure with high adsorption performance, comprising a zeolite body (1); characterized in that: Also included are a plurality of groups of adsorbents (2), wherein the adsorbents (2) are in the shape of truncated triacontades, and the interior of the adsorbents (2) is a hollow structure; The surface of the adsorbent (2) is provided with a plurality of through holes, the inner section of the through holes is in the shape of a polygonal column, and the outer cross-sectional area of ​​the through holes is larger than the inner cross-sectional area of ​​the through holes.

2. The honeycomb zeolite structure with high adsorption performance according to claim 1, characterized in that: Each group of hexagonal through holes of the adsorbent (2) is provided with a hexagonal groove (3) communicating with the interior thereof.

3. The honeycomb zeolite structure with high adsorption performance according to claim 2, characterized in that: The plurality of groups of adsorbents (2) are arranged in sequence from the outside to the inside, and the sizes of the plurality of groups of adsorbents (2) are equidistantly reduced.

4. The honeycomb zeolite structure with high adsorption performance according to claim 3, characterized in that: The two outermost and adjacent groups of adsorbent bodies (2) are connected via adjacent hexagonal grooves (3).

5. The honeycomb zeolite structure with high adsorption performance according to claim 1, characterized in that: The surface of the zeolite body (1) is provided with a plurality of groups of cylindrical grooves (4), the plurality of groups of cylindrical grooves (4) are arranged in a rectangular array, and a plurality of groups of adsorbents (2) are fixed on the inner walls of the cylindrical grooves (4).

6. The honeycomb zeolite structure with high adsorption performance according to claim 1, characterized in that: Two sets of fixed walls (5) are fixed on both side surfaces of the zeolite body (1).

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