VOC (volatile organic compound) removal device
By placing electrodes in the VOC adsorption rotor and applying voltage to heat, the problem of low energy efficiency of the existing VOC removal device is solved, and an efficient VOC disengagement effect is achieved.
Patent Information
- Application Number
- CN202380042355.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2022-06-03
- Filing Date
- 2023-05-26
- Publication Date
- 2024-12-20
AI Technical Summary
When the existing VOC removal device heats the gas to remove the VOC, the energy efficiency is low, making it difficult to efficiently remove the VOC adsorbed to the VOC adsorbed rotor.
A pair of electrodes are arranged in the VOC adsorption rotor, and a voltage is applied to the electrode through a voltage application device, so that current flows through the honeycomb structure containing metal, generates Joule heat and directly heats the disengagement zone, thereby improving the disengagement efficiency of the VOC.
Direct heating of the honeycomb structure in the disengagement zone through the electric heating effect significantly improves the VOC's disengagement efficiency, which is higher in heating efficiency and more optimized in energy utilization than traditional methods.
Smart Images
Figure CN119173328A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a VOC removal device for removing VOC contained in a treatment target gas. Background Art
[0002] Conventionally, there is known a VOC removal device having a honeycomb-type VOC adsorption rotor for adsorbing volatile organic compounds (VOC) (see Patent Document 1). Conventional VOC adsorption rotors use ceramics, glass, etc. as a base material and carry an adsorbent for adsorbing VOC.
[0003] The VOC adsorption rotor is provided with an adsorption zone for adsorbing VOC contained in the treatment target gas, a desorption zone for desorbing VOC adsorbed in the adsorption zone by passing the heated gas, and a cooling zone for cooling the VOC adsorption rotor heated in the desorption zone. That is, during one rotation of the VOC adsorption rotor, VOC is adsorbed in the adsorption zone, VOC is desorbed in the desorption zone, and the rotor is cooled in the cooling zone. Furthermore, the VOC is adsorbed again in the adsorption zone.
[0004] Prior Art Literature
[0005] Patent Literature
[0006] Patent Document 1: Japanese Patent Application Publication No. 2016-77969 Summary of the invention
[0007] Problem that the invention aims to solve
[0008] Conventional VOC removal devices heat gas to desorb VOC adsorbed in the adsorption zone of the VOC adsorption rotor by heating, and pass the heated gas through the desorption zone. Therefore, the energy efficiency for desorbing VOC is not high and there is room for improvement.
[0009] The present invention is an invention that solves the above-mentioned problems, and an object of the present invention is to provide a VOC removal device that can remove VOC adsorbed on a VOC adsorption rotor with high energy efficiency.
[0010] Technical solutions to solve problems
[0011] The VOC removal device of the present invention is characterized by comprising:
[0012] The VOC adsorption rotor includes a honeycomb structure that carries an adsorbent for adsorbing VOCs;
[0013] a pair of electrodes arranged at both outer sides of the VOC adsorption rotor in the extending direction of the rotation axis of the VOC adsorption rotor and arranged at positions in contact with the honeycomb structure; and
[0014] a voltage applying device capable of applying a voltage to the pair of electrodes,
[0015] The honeycomb structure comprises metal,
[0016] The pair of electrodes is arranged in the desorption zone among the adsorption zone, desorption zone and cooling zone of the VOC adsorption rotor, the adsorption zone is used to allow the treatment object gas to pass through so as to adsorb the VOC contained in the treatment object gas, the desorption zone is used to desorb the VOC adsorbed in the adsorption zone, and the cooling zone is used to cool the honeycomb structure.
[0017] Effects of the Invention
[0018] According to the VOC removal device of the present invention, when a voltage is applied to a pair of electrodes arranged in the desorption zone by a voltage applying device, a current flows through the honeycomb structure of the VOC adsorption rotor including metal, generating Joule heat. Thus, the honeycomb structure can be directly heated in the desorption zone, and the adsorbed VOC can be desorbed with high energy efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a perspective view schematically showing the structure of a VOC removal device in one embodiment.
[0020] Figure 2 It is a plan view schematically showing the structure of the VOC adsorption rotor when viewed in the extending direction of the rotation shaft.
[0021] Figure 3 , (a) is a diagram showing a first fine shape reproducing model as a model of a honeycomb structure, and (b) is a diagram showing a first uniform equivalent physical property model corresponding to the first fine shape reproducing model.
[0022] Figure 4 , (a) is a diagram showing a second fine shape reproducing model as a model of a honeycomb structure, and (b) is a diagram showing a second uniform equivalent physical property model corresponding to the second fine shape reproducing model.
[0023] Figure 5 (a) is a graph showing normalized conductivity in the X-axis direction and normalized conductivity in the Y-axis direction relative to (2Lb / La), and (b) is a graph with the vertical axis of the graph shown in (a) set as a logarithmic axis.
[0024] Figure 6Among them, (a) is a diagram showing the simulation results of temperature distribution when the first uniform equivalent property model is used, (b) is a diagram showing the simulation results of temperature distribution when the second uniform equivalent property model is used, and (c) is a three-dimensional diagram showing that four blocks are stacked in an up-down and left-right configuration. DETAILED DESCRIPTION
[0025] Hereinafter, embodiments of the present invention will be shown, and features of the present invention will be specifically described.
[0026] Figure 1 1 is a perspective view schematically showing the structure of a VOC removal device 100 in one embodiment. The VOC removal device 100 in one embodiment includes a VOC adsorption rotor 10, a pair of electrodes 20a, 20b, and a voltage application device 30. Figure 1 As shown, the VOC removal device 100 may further include a first air supply device 41 , a second air supply device 42 , a third air supply device 43 , and a heating device 44 .
[0027] Figure 2 1 is a schematic top view showing the structure of the VOC adsorption rotor 10 when viewed in the extending direction of the rotation shaft 11 (hereinafter, sometimes referred to as the rotation shaft direction). Figure 2 The electrode 20a described later is also shown. The VOC adsorption rotor 10 is driven by a motor or the like and is configured to be rotatable around a rotating shaft 11. The diameter of the VOC adsorption rotor 10 is, for example, greater than 500 mm and less than 2000 mm, and the dimension of the rotating shaft 11 in the extension direction is, for example, greater than 200 mm and less than 800 mm.
[0028] The VOC adsorption rotor 10 includes a honeycomb structure 1 that supports an adsorbent for adsorbing VOCs. The honeycomb structure 1 includes a metal such as stainless steel. However, the metal constituting the honeycomb structure 1 is not limited to stainless steel. In addition, the VOC adsorption rotor 10 may be configured to include a metal as a whole, or a portion other than the honeycomb structure 1 may be composed of a material other than metal.
[0029] The shapes of the plurality of cells 2 constituting the honeycomb structure 1 can be any shapes. Figure 2 In the example shown, the cell 2 is triangular in shape when viewed in the extending direction of the rotation axis 11. However, the cell 2 may be hexagonal, rectangular or other shapes when viewed in the rotation axis direction.
[0030] The adsorbent carried on the honeycomb structure 1 can be any adsorbent as long as it can adsorb VOC contained in the treatment target gas, for example, zeolite, activated carbon, silica, etc. can be used. The treatment target gas is, for example, a gas containing VOC generated by cleaning, printing, coating, drying, etc. in a factory. In addition, the present invention is not limited by the type of VOC to be removed or the type of adsorbent.
[0031] A catalyst for decomposing VOC may be supported on the honeycomb structure 1. As the catalyst for decomposing VOC, for example, platinum, palladium, etc. can be used.
[0032] like Figure 1 as well as Figure 2 As shown, the VOC adsorption rotor 10 is provided with an adsorption zone Z1, a desorption zone Z2, and a cooling zone Z3 along the rotation direction. The range of the adsorption zone Z1 in the rotation direction is, for example, a range of 230° to 270°, the range of the desorption zone Z2 is, for example, a range of 30° to 60°, and the range of the cooling zone Z3 is, for example, a range of 30° to 60°.
[0033] The adsorption zone Z1 is a zone for passing the treatment target gas to adsorb the VOC contained in the treatment target gas. In the present embodiment, the air supply of the treatment target gas is performed by the first air supply device 41. The separation zone Z2 is a zone for separating the VOC adsorbed in the adsorption zone Z1. In order to separate the VOC, the heated gas is passed through the separation zone Z2. In the present embodiment, the gas supplied by the second air supply device 42 is heated by a heating device 44 such as a heater and then supplied to the separation zone Z2. The cooling zone Z3 is a zone for cooling the honeycomb structure 1 heated in the separation zone Z2. In the present embodiment, the gas for cooling the honeycomb structure 1 is supplied to the cooling zone Z3 by the third air supply device 43.
[0034] The gas from which VOC is removed by passing through the adsorption zone Z1 may be returned to the exhaust source of the treatment target gas. The gas warmed by passing through the cooling zone Z3 may be used as the gas passing through the desorption zone Z2.
[0035] exist Figure 2 In the embodiment, if the VOC adsorption rotor 10 rotates counterclockwise, the cells 2 in the adsorption zone Z1 move to the desorption zone Z2 and the cooling zone Z3 in sequence, and then return to the adsorption zone Z1. The honeycomb structure 1 is cooled in the cooling zone Z3, so that VOC can be adsorbed again in the adsorption zone Z1.
[0036] That is, the VOC adsorption rotor 10 rotates, thereby repeatedly adsorbing and desorbing the VOC contained in the treatment target gas. In addition, when the honeycomb structure 1 carries a catalyst for decomposing VOC, in the desorption zone Z2, although the decomposition reaction of VOC is carried out, the adsorbed VOC can be captured and desorbed due to the decomposition of VOC, so it is assumed that the decomposition of VOC is included in the desorption of VOC. The rotation speed of the VOC adsorption rotor 10 is, for example, 8.4 rph or more and 11.0 rph or less.
[0037] The pair of electrodes 20a and 20b are arranged at positions in contact with the VOC adsorption rotor 10 on both outer sides of the VOC adsorption rotor 10 in the extending direction of the rotation axis 11 of the VOC adsorption rotor 10. The pair of electrodes 20a and 20b are preferably arranged at positions opposite to each other in the extending direction of the rotation axis 11. The pair of electrodes 20a and 20b are arranged in the desorption zone Z2 among the adsorption zone Z1, the desorption zone Z2, and the cooling zone Z3 of the VOC adsorption rotor 10. In more detail, as Figure 1 as well as Figure 2 As shown, a pair of electrodes 20a, 20b is arranged at a position close to the adsorption zone Z1 in the detachment zone Z2.
[0038] The pair of electrodes 20a and 20b are made of graphite, for example. However, the material of the pair of electrodes 20a and 20b is not limited to graphite, and metals such as copper may also be used.
[0039] In the present embodiment, the pair of electrodes 20a and 20b each have a shape extending in the radial direction of the VOC adsorption rotor 10. The pair of electrodes 20a and 20b have a shape extending in the radial direction, so that when a voltage is applied to the pair of electrodes 20a and 20b by a voltage applying device 30 described later, a wide area in the radial direction of the honeycomb structure 1 can be heated. Figure 1 as well as Figure 2 As shown, the pair of electrodes 20a, 20b are elongated in shape so as not to become an obstacle when the heated gas passes through the separation zone Z2.
[0040] However, the shape of the pair of electrodes 20a, 20b is not limited to Figure 1 as well as Figure 2 For example, the pair of electrodes 20a, 20b may be in the shape of a roller whose surface in contact with the VOC adsorption rotor 10 is a rotating surface.
[0041] As described above, the pair of electrodes 20a and 20b are respectively provided at positions in contact with the VOC adsorption rotor 10. Therefore, the VOC adsorption rotor 10 rotates while rubbing against the pair of electrodes 20a and 20b while maintaining the contact state.
[0042] The voltage applying device 30 can apply a voltage to the pair of electrodes 20a and 20b. For example, the voltage applying device 30 applies a voltage to the pair of electrodes 20a and 20b so that the output becomes 2 kW or more and 10 kW or less.
[0043] In the VOC removal device 100 of the present embodiment, when the VOC adsorption rotor 10 rotates to repeatedly adsorb and desorb VOC contained in the treatment target gas, a voltage is applied to the pair of electrodes 20a and 20b by the voltage applying device 30. As described above, the honeycomb structure 1 is made of metal, so the voltage is applied to the pair of electrodes 20a and 20b to flow current through the honeycomb structure 1, generating Joule heat. As a result, the temperature of the honeycomb structure 1 rises.
[0044] That is, by applying a voltage to a pair of electrodes 20a and 20b, the honeycomb structure 1 can be directly heated, and the amount of energy for desorbing VOC in the desorption zone Z2 can be reduced. Therefore, the VOC removal device 100 in the present embodiment has a good heating efficiency compared to the conventional VOC removal device that simply desorbs VOC adsorbed on the honeycomb structure 1 by passing the heated gas through the desorption zone Z2, and can desorb VOC adsorbed on the VOC adsorption rotor 10 with high energy efficiency. For example, in order to desorb VOC adsorbed in the adsorption zone Z1, the heating temperature of the gas passing through the desorption zone Z2 can be lowered compared to the conventional VOC adsorption rotor described above.
[0045] The portion of the honeycomb structure 1 that is heated by the voltage application to the pair of electrodes 20a, 20b moves toward the cooling zone Z3 due to the rotation of the VOC adsorption rotor 10. Figure 1 as well as Figure 2 As shown, by arranging the pair of electrodes 20a and 20b at a position close to the adsorption zone Z1, the honeycomb structure 1 can be directly heated at an early stage in the desorption zone Z2, and VOC can be efficiently desorbed.
[0046] Here, the shape of the cells 2 constituting the honeycomb structure 1 was changed, and the electrical conductivity of the honeycomb structure 1 was investigated by simulation. Here, as honeycomb structures 1 with different shapes of the cells 2, Figure 3 The first fine shape reproduction model 21 shown in (a), and Figure 4 In addition, a first uniform equivalent physical property model 22 ( Figure 3 (b)), and the second uniform equivalent physical property model 24 corresponding to the second fine shape reproduction model 23 ( Figure 4 (b)).
[0047] Figure 3 The first uniform equivalent physical property model 22 shown in (b) and Figure 4 The X-axis direction, the Y-axis direction, and the Z-axis direction of the second uniform equivalent physical property model 24 shown in (b) correspond to the circumferential direction, the radial direction, and the rotation axis direction of the VOC adsorption rotor 10 , respectively.
[0048] Figure 3 The cell 2 in the first fine shape reproduction model 21 shown in (a) has a circumferential dimension La of 3.3 mm, a radial dimension Lb of 2.0 mm, a rotation axis dimension Ld (not shown) of 0.05 mm, and a conductivity σ of 1 / (142×10 8 ) S / m, the resistances in the X-axis direction, the Y-axis direction, and the Z-axis direction of the first fine shape reproduction model 21 and the first uniform equivalent property model 22 when the dimension of the Z-axis direction of the first uniform equivalent property model 22 is set to 0.1 mm are shown in Table 1.
[0049] [Table 1]
[0050]
[0051] As shown in Table 1, the resistance in the X-axis direction of the first uniform equivalent physical property model 22 has an error of 10% or less relative to the resistance in the X-axis direction of the first fine shape reproducing model 21. Similarly, the resistance in the Y-axis direction and the resistance in the Z-axis direction of the first uniform equivalent physical property model 22 have an error of 10% or less relative to the resistance in the Y-axis direction and the resistance in the Z-axis direction of the first fine shape reproducing model 21. Therefore, when performing simulation, the first uniform equivalent physical property model 22 can be used as a simplified model instead of the first fine shape reproducing model 21.
[0052] Figure 4 The second fine shape reproduction model 23 shown in (a) has a cell 2 with a circumferential dimension La of 1.0 mm, a radial dimension Lb of 10.0 mm, a rotation axis dimension Ld (not shown) of 0.05 mm, and a conductivity σ of 1 / (142×10 8 ) S / m, the resistances in the X-axis direction, Y-axis direction and Z-axis direction of the second fine shape reproduction model 23 and the second uniform equivalent property model 24 when the dimension of the Z-axis direction of the second uniform equivalent property model 24 is set to 0.1 mm are shown in Table 2.
[0053] [Table 2]
[0054]
[0055] As shown in Table 2, the resistance in the X-axis direction of the second uniform equivalent physical property model 24 has an error of 10% or less relative to the resistance in the X-axis direction of the second fine shape reproducing model 23. Similarly, the resistance in the Y-axis direction and the resistance in the Z-axis direction of the second uniform equivalent physical property model 24 have an error of 10% or less relative to the resistance in the Y-axis direction and the resistance in the Z-axis direction of the second fine shape reproducing model 23. Therefore, when performing simulation, the second uniform equivalent physical property model 24 can be used as a simplified model instead of the second fine shape reproducing model 23.
[0056] In the first uniform equivalent physical property model 22 and the second uniform equivalent physical property model 24 , the electrical conductivity in the X-axis direction, the electrical conductivity in the Y-axis direction, and the electrical conductivity in the Z-axis direction are expressed by the following equations (1) to (3).
[0057]
[0058]
[0059]
[0060] In addition, the electrical conductivity in the Y-axis direction can also be expressed by the following formula (4).
[0061]
[0062] When the conductivity in the X-axis direction and the conductivity in the Y-axis direction are normalized by setting the conductivity in the Z-axis direction to 1, the normalized conductivity in the X-axis direction and the normalized conductivity in the Y-axis direction each depend only on (2Lb / La).
[0063] Figure 5 (a) is a graph showing the normalized electrical conductivity in the X-axis direction and the normalized electrical conductivity in the Y-axis direction with respect to (2Lb / La). Figure 5 (b) is to Figure 5 The vertical axis of the graph shown in (a) is a logarithmic axis. Figure 5 In (a) and (b), the horizontal axis is a logarithmic axis. Figure 5 In (a) and (b), the conductivity recorded as "X-axis direction" is the normalized conductivity in the X-axis direction, the conductivity recorded as "Y-axis direction" is the normalized conductivity in the Y-axis direction, and the conductivity recorded as "Z-axis direction" is the normalized conductivity in the Z-axis direction.
[0064] like Figure 5As shown in (a) and (b), the conductivity in the X-axis direction and the conductivity in the Y-axis direction are lower than the conductivity in the Z-axis direction. In addition, the conductivity in the X-axis direction and the conductivity in the Y-axis direction are in a trade-off relationship. If one conductivity is reduced, the other conductivity increases.
[0065] When a voltage is applied to a pair of electrodes 20a, 20b in the separation zone Z2, the radial heating value of the VOC adsorption rotor 10 can be adjusted by adjusting the size of the pair of electrodes 20a, 20b. That is, by using a pair of electrodes 20a, 20b that are long in the radial direction, the radial heating value can be increased. Therefore, when a voltage is applied to a pair of electrodes 20a, 20b, if the heating value in the circumferential direction of the VOC adsorption rotor 10, which is the rotation direction, is large, the adsorbed VOC can be effectively separated in the separation zone Z2. In order to increase the circumferential heating value of the VOC adsorption rotor 10, it is sufficient to reduce the electrical conductivity in the circumferential direction (X-axis direction). For this purpose, as shown in FIG. Figure 5 As shown in (a) and (b), it is sufficient to increase (2Lb / La). If (2Lb / La) is 4 or more, the conductivity in the X-axis direction corresponding to the circumferential direction is smaller than the conductivity in the Y-axis direction corresponding to the radial direction, so (2Lb / La) is preferably 4 or more, that is, Lb / La is preferably 2 or more. In addition, when (2Lb / La) is 6 or more, the conductivity in the X-axis direction corresponding to the circumferential direction becomes smaller, so Lb / La is more preferably 3 or more.
[0066] Figure 6 It shows that the simulation results show that Figure 1 The figures show the results of the temperature distribution of the honeycomb structure 1 when a voltage is applied to a pair of electrodes 20a and 20b in contact with the VOC adsorption rotor 10 as shown, wherein (a) shows the temperature distribution when the first uniform equivalent property model 22 is used, and (b) shows the temperature distribution when the second uniform equivalent property model 24 is used.
[0067] Here, if Figure 6 As shown in (c), four blocks 25 using the first uniform equivalent property model 22 or the second uniform equivalent property model 24 are stacked in an up-down, left-right arrangement, and the temperature distribution of the four blocks 25 when a voltage is applied to a pair of electrodes 26a and 26b arranged at opposing positions in the Z-axis direction is investigated. Figure 6 (a) and Figure 6 The block 25 shown in (b) represents Figure 6 The block 25 located at the lower right among the four blocks 25 shown in (c). Figure 6In the temperature distribution shown in (a) and (b), the darker the area, the higher the temperature. That is, the temperature of the black area is higher than that of the white area.
[0068] like Figure 6 As shown in (a) and (b), when the second uniform equivalent property model 24 is used, the high temperature region is expanded to a wider range compared to the case where the first uniform equivalent property model 22 is used, and the temperature in the X-axis direction corresponding to the circumferential direction is high over the wide range. That is, in order to more effectively desorb the adsorbed VOC, compared to the first fine shape reproduction model 21 ( Figure 3 (a)), more preferably the second fine shape reproduction model 23 ( Figure 4 (a)).
[0069] The above simulation is a simulation in which the shape of the small chamber 2 is triangular when observed in the extension direction of the rotating shaft 11, but the same is true for the case where the shape of the small chamber 2 is hexagonal or rectangular. Preferably, Lb / La is greater than 2, and more preferably, Lb / La is greater than 3.
[0070] The present invention is not limited to the above-mentioned embodiment, and various applications and modifications can be applied within the scope of the present invention. For example, in the above-mentioned embodiment, the case where the pair of electrodes 20a and 20b arranged in the separation zone Z2 is a single group is described, but multiple groups may be arranged and voltages may be applied to the multiple groups of electrodes. In this case, a wide range of the honeycomb structure 1 in the separation zone Z2 can be heated at once.
[0071] In the above-mentioned embodiment, the case where the gas for cooling the honeycomb structure 1 passes through the cooling zone Z3 to cool the honeycomb structure 1 in the cooling zone Z3 is described, but the honeycomb structure 1 in the cooling zone Z3 may be cooled by other methods.
[0072] The VOC removal device in the present application is as follows.
[0073] <1> . A VOC removal device, characterized by comprising:
[0074] The VOC adsorption rotor includes a honeycomb structure that carries an adsorbent for adsorbing VOCs;
[0075] a pair of electrodes arranged at both outer sides of the VOC adsorption rotor in the extending direction of the rotation axis of the VOC adsorption rotor and arranged at positions in contact with the VOC adsorption rotor; and
[0076] a voltage applying device capable of applying a voltage to the pair of electrodes,
[0077] The honeycomb structure comprises metal,
[0078] The pair of electrodes is arranged in the desorption zone among the adsorption zone, desorption zone and cooling zone of the VOC adsorption rotor, the adsorption zone is used to allow the treatment object gas to pass through so as to adsorb the VOC contained in the treatment object gas, the desorption zone is used to desorb the VOC adsorbed in the adsorption zone, and the cooling zone is used to cool the honeycomb structure.
[0079] <2> .exist <1> In the VOC removal device described above, the pair of electrodes each have a shape extending in a radial direction of the VOC adsorption rotor.
[0080] <3> .exist <1> or <2> The VOC removal device described above is characterized in that, when La is the circumferential dimension of the cells constituting the honeycomb structure of the VOC adsorption rotor and Lb is the radial dimension, Lb / La is 2 or more.
[0081] <4> .exist <1> or <2> The VOC removal device described above is characterized in that, when La is the circumferential dimension of the cells constituting the honeycomb structure of the VOC adsorption rotor and Lb is the radial dimension, Lb / La is 3 or more.
[0082] <5> .exist <1> ~ <4> In the VOC removal device described in any one of the above, the cell has a triangular shape when viewed in the extending direction of the rotation axis of the VOC adsorption rotor.
[0083] <6> .exist <1> ~ <5> In the VOC removal device described in any one of the above, the metal is stainless steel.
[0084] Description of Reference Numerals
[0085] 1: Honeycomb structure;
[0086] 2: Small room;
[0087] 10: VOC adsorption rotor;
[0088] 11: Rotation axis;
[0089] 20a, 20b: a pair of electrodes;
[0090] 21: 1st micro-shape reproduction model;
[0091] 22: The first uniform equivalent property model;
[0092] 23: The second micro-shape reproduction model;
[0093] 24: The second uniform equivalent property model;
[0094] 25: Block;
[0095] 26a, 26b: a pair of electrodes;
[0096] 30: voltage applying device;
[0097] 41: 1st air supply device;
[0098] 42: second air supply device;
[0099] 43: The third air supply device;
[0100] 44: Heating device;
[0101] 100: VOC removal device;
[0102] Z1: adsorption zone;
[0103] Z2: Detachment zone;
[0104] Z3: Cooling zone.
Claims
1. A VOC removal device, characterized in that: have: The VOC adsorption rotor includes a honeycomb structure that carries an adsorbent for adsorbing VOCs; a pair of electrodes, arranged at both outer sides of the VOC adsorption rotor in the extending direction of the rotation axis of the VOC adsorption rotor, and arranged at positions contacting the VOC adsorption rotor; and a voltage applying device capable of applying a voltage to the pair of electrodes, The honeycomb structure comprises metal, The pair of electrodes is arranged in the desorption zone among the adsorption zone, desorption zone and cooling zone of the VOC adsorption rotor, the adsorption zone is used to allow the treatment object gas to pass through so as to adsorb the VOC contained in the treatment object gas, the desorption zone is used to desorb the VOC adsorbed in the adsorption zone, and the cooling zone is used to cool the honeycomb structure.
2. The VOC removal device according to claim 1, characterized in that: The pair of electrodes each have a shape extending in a radial direction of the VOC adsorption rotor.
3. The VOC removal device according to claim 1 or 2, characterized in that: When the dimension of the cells constituting the honeycomb structure of the VOC adsorption rotor in the circumferential direction is La and the dimension in the radial direction is Lb, Lb / La is 2 or more.
4. The VOC removal device according to claim 1 or 2, characterized in that: When the dimension of the cells constituting the honeycomb structure of the VOC adsorption rotor in the circumferential direction is La and the dimension in the radial direction is Lb, Lb / La is 3 or more.
5. The VOC removal device according to any one of claims 1 to 4, characterized in that: When viewed in the extending direction of the rotation axis of the VOC adsorption rotor, the cell has a triangular shape.
6. The VOC removal device according to any one of claims 1 to 5, characterized in that: The metal is stainless steel.