WO2023234217A1 - Ｖｏｃ除去装置 - Google Patents

Ｖｏｃ除去装置 Download PDF

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Publication number
WO2023234217A1
WO2023234217A1 PCT/JP2023/019749 JP2023019749W WO2023234217A1 WO 2023234217 A1 WO2023234217 A1 WO 2023234217A1 JP 2023019749 W JP2023019749 W JP 2023019749W WO 2023234217 A1 WO2023234217 A1 WO 2023234217A1
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Prior art keywords
voc
honeycomb structure
adsorption rotor
zone
electrodes
Prior art date
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Ceased
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PCT/JP2023/019749
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English (en)
French (fr)
Japanese (ja)
Inventor
幸雄 眞田
徹平 川井
輝久 柴原
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Murata Manufacturing Co Ltd
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Murata Manufacturing Co Ltd
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Priority to JP2024524826A priority Critical patent/JP7798190B2/ja
Priority to CN202380042355.4A priority patent/CN119173328A/zh
Publication of WO2023234217A1 publication Critical patent/WO2023234217A1/ja
Priority to US18/960,146 priority patent/US20250083095A1/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8678—Removing components of undefined structure
    • B01D53/8687—Organic components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/88—Handling or mounting catalysts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/106—Silica or silicates
    • B01D2253/108—Zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1021—Platinum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1023—Palladium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/708—Volatile organic compounds V.O.C.'s
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
    • B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
    • B01D2259/4009—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating using hot gas
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/40—Further details for adsorption processes and devices
    • B01D2259/40083—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption
    • B01D2259/40088—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating
    • B01D2259/40096—Regeneration of adsorbents in processes other than pressure or temperature swing adsorption by heating by using electrical resistance heating
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Definitions

  • the present invention relates to a VOC removal device that removes VOCs contained in a gas to be treated.
  • a VOC removal device that includes a honeycomb-shaped VOC adsorption rotor that adsorbs volatile organic compounds (VOC) (see Patent Document 1).
  • VOC volatile organic compounds
  • a conventional VOC adsorption rotor uses ceramic, glass, or the like as a base material, and supports an adsorbent that adsorbs VOC.
  • the VOC adsorption rotor consists of an adsorption zone that adsorbs VOCs contained in the gas to be treated, a desorption zone that desorbs the VOCs adsorbed in the adsorption zone by passing heated gas, and a desorption zone that desorbs the VOCs adsorbed in the adsorption zone.
  • a cooling zone is provided to cool the VOC adsorption rotor. 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 cooled in the cooling zone. Then, the structure is such that VOC adsorption is performed again in the adsorption zone.
  • VOC removal equipment heats the gas and passes the heated gas through the desorption zone in order to desorb the VOCs adsorbed in the adsorption zone of the VOC adsorption rotor by heating. , it cannot be said that the energy efficiency for desorbing VOCs is high, and there is room for improvement.
  • the present invention solves the above problems, and aims to provide a VOC removal device that can remove VOCs adsorbed by a VOC adsorption rotor with high energy efficiency.
  • the VOC removal device of the present invention includes: a VOC adsorption rotor comprising a honeycomb structure supporting an adsorbent for adsorbing VOC; a pair of electrodes disposed on both outer sides of the VOC adsorption rotor in the extending direction of the rotating shaft of the VOC adsorption rotor, and disposed at positions in contact with the honeycomb structure; a voltage application device capable of applying a voltage to the pair of electrodes; Equipped with The honeycomb structure is made of metal,
  • the pair of electrodes includes an adsorption zone provided in the VOC adsorption rotor for passing the gas to be treated and adsorbing VOCs contained in the gas to be treated, and an adsorption zone for adsorbing VOCs contained in the gas to be treated;
  • a desorption zone for cooling the honeycomb structure and a cooling zone for cooling the honeycomb structure are arranged in the desorption zone.
  • the VOC removal device of the present invention when a voltage is applied by the voltage application device to the pair of electrodes arranged in the desorption zone, a current flows through the honeycomb structure of the VOC adsorption rotor made of metal, and Joule heat is generated. Occur. Thereby, it is possible to directly heat the honeycomb structure in the desorption zone, and it is possible to desorb the adsorbed VOC with high energy efficiency.
  • FIG. 1 is a perspective view schematically showing the configuration of a VOC removal device in one embodiment.
  • FIG. 2 is a plan view schematically showing the configuration of the VOC adsorption rotor when viewed in the extending direction of the rotating shaft.
  • (a) is a diagram showing a first fine shape reproduction model that is 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 reproduction model.
  • (a) is a diagram showing a second fine shape reproduction model that is 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 reproduction model. .
  • (a) is a graph showing the normalized conductivity in the X-axis direction and the normalized conductivity in the Y-axis direction with respect to (2Lb/La), and (b) is the graph shown in (a). This is a graph with the vertical axis as a logarithmic axis.
  • (a) is a diagram showing the simulation results of temperature distribution when using the first uniform equivalent physical property model
  • (b) is a diagram showing the simulation results of temperature distribution when using the second uniform equivalent physical property model.
  • (c) is a perspective view showing four block bodies stacked vertically and horizontally.
  • FIG. 1 is a perspective view schematically showing the configuration of a VOC removal device 100 in one embodiment.
  • a VOC removal device 100 in one embodiment includes a VOC adsorption rotor 10, a pair of electrodes 20a and 20b, and a voltage application device 30.
  • the VOC removal device 100 may further include a first blower 41, a second blower 42, a third blower 43, and a heating device 44.
  • FIG. 2 is a plan view schematically showing the configuration of the VOC adsorption rotor 10 when viewed in the extending direction of the rotating shaft 11 (hereinafter sometimes referred to as the rotating shaft direction). However, in FIG. 2, an electrode 20a, which will be described later, is also shown.
  • the VOC adsorption rotor 10 is configured to be rotatable around a rotating shaft 11 using a motor or the like as a driving source.
  • the diameter of the VOC adsorption rotor 10 is, for example, 500 mm or more and 2000 mm or less, and the dimension in the extending direction of the rotating shaft 11 is, for example, 200 mm or more and 800 mm or less.
  • the VOC adsorption rotor 10 includes a honeycomb structure 1 that supports an adsorbent for adsorbing VOC.
  • the honeycomb structure 1 is made of metal such as stainless steel.
  • the metal constituting the honeycomb structure 1 is not limited to stainless steel.
  • the VOC adsorption rotor 10 may be configured entirely of metal, or a portion other than the honeycomb structure 1 may be configured of a material other than metal.
  • the shape of the plurality of cells 2 constituting the honeycomb structure 1 can be any shape.
  • the shape of the cell 2 when viewed in the extending direction of the rotating shaft 11 is triangular.
  • the shape of the cell 2 when viewed in the direction of the rotation axis may be other shapes such as a hexagon or a rectangle.
  • the adsorbent supported on the honeycomb structure 1 may be any material as long as it can adsorb VOCs contained in the gas to be treated, and for example, zeolite, activated carbon, silica, etc. can be used.
  • the gas to be treated is, for example, a gas containing VOC that is generated when processes such as cleaning, printing, painting, and drying are performed in a factory or the like. Note that the present invention is not limited by the type of VOC to be removed or the type of adsorbent.
  • the honeycomb structure 1 may support a catalyst for decomposing VOCs.
  • a catalyst for decomposing VOCs for example, platinum, palladium, etc. can be used as a catalyst for decomposing VOCs.
  • 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° or more and 270° or less
  • the range of the desorption zone Z2 is, for example, a range of 30° or more and 60° or less
  • the range of the cooling zone Z3 is, for example, a range of 30° or more and a range of 60° or less. , for example, in a range of 30° or more and 60° or less.
  • the adsorption zone Z1 is an area through which the gas to be treated passes and adsorbs VOCs contained in the gas to be treated.
  • the gas to be treated is blown by the first blower device 41 .
  • the desorption zone Z2 is an area for desorbing the VOCs adsorbed in the adsorption zone Z1.
  • heated gas is passed through the desorption zone Z2.
  • the gas blown by the second blower 42 is heated by a heating device 44 such as a heater, and then sent to the desorption zone Z2.
  • the cooling zone Z3 is a region for cooling the honeycomb structure 1 heated in the desorption zone Z2.
  • gas for cooling the honeycomb structure 1 is blown to the cooling zone Z3 by the third blowing device 43.
  • the gas from which VOCs have been removed by passing through the adsorption zone Z1 may be returned to the source of the gas to be treated. Further, the gas warmed by passing through the cooling zone Z3 may be used as the gas passing through the desorption zone Z2.
  • VOC adsorption rotor 10 by rotating the VOC adsorption rotor 10, adsorption and desorption of VOCs contained in the gas to be treated are repeatedly performed.
  • a catalyst for decomposing VOCs is supported on the honeycomb structure 1, a decomposition reaction of VOCs is carried out in the desorption zone Z2. Since VOC decomposition can be regarded as desorption, VOC decomposition is included in VOC desorption.
  • the rotation speed of the VOC adsorption rotor 10 is, for example, 8.4 rph or more and 11.0 rph or less.
  • the pair of electrodes 20a and 20b are arranged on both outer sides of the VOC adsorption rotor 10 in the extending direction of the rotating shaft 11 of the VOC adsorption rotor 10, at positions where they come into contact with the VOC adsorption rotor 10. It is preferable that the pair of electrodes 20a and 20b are arranged at opposing positions in the extending direction of the rotating shaft 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 provided in the VOC adsorption rotor 10. More specifically, as shown in FIGS. 1 and 2, the pair of electrodes 20a and 20b are arranged in the desorption zone Z2 at a position close to the adsorption zone Z1.
  • the pair of electrodes 20a and 20b are made of graphite, for example.
  • the material of the pair of electrodes 20a, 20b is not limited to graphite, and metals such as copper may be used.
  • the pair of electrodes 20a and 20b each have a shape extending in the radial direction of the VOC adsorption rotor 10. Since the pair of electrodes 20a and 20b have a shape extending in the radial direction, when a voltage is applied to the pair of electrodes 20a and 20b by the voltage application device 30 described later, a wide area in the radial direction of the honeycomb structure 1 can be heated. Furthermore, as shown in FIGS. 1 and 2, since the pair of electrodes 20a and 20b have an elongated shape, they do not interfere with the heated gas passing through the desorption zone Z2.
  • the shape of the pair of electrodes 20a, 20b is not limited to the shapes shown in FIGS. 1 and 2.
  • the pair of electrodes 20a, 20b may be in the shape of a roller whose surface that contacts the VOC adsorption rotor 10 is a rotating surface.
  • the pair of electrodes 20a and 20b are each provided at a position in contact with the VOC adsorption rotor 10. Therefore, when rotating, the VOC adsorption rotor 10 rotates while maintaining contact with the pair of electrodes 20a and 20b while rubbing against them.
  • the voltage application device 30 is capable of applying a voltage to the pair of electrodes 20a and 20b.
  • the voltage application device 30 applies a voltage to the pair of electrodes 20a and 20b so that the output is, for example, 2 kW or more and 10 kW or less.
  • the VOC removal device 100 when the VOC adsorption rotor 10 rotates and adsorption and desorption of VOCs contained in the target gas are repeatedly performed, a voltage is applied to the pair of electrodes 20a and 20b by the voltage application device 30. Apply. As described above, since the honeycomb structure 1 is made of metal, by applying a voltage to the pair of electrodes 20a and 20b, a current flows through the honeycomb structure 1 and Joule heat is generated. As a result, the temperature of the honeycomb structure 1 increases.
  • the VOC removal device 100 is more effective than the conventional VOC removal device, which desorbs VOCs adsorbed on the honeycomb structure 1 by simply passing heated gas through the desorption zone Z2. It is possible to desorb the VOCs adsorbed by the VOC adsorption rotor 10 with good efficiency and high energy efficiency. For example, in order to desorb the VOCs adsorbed in the adsorption zone Z1, it is possible to lower the heating temperature of the gas passing through the desorption zone Z2, compared to the conventional VOC adsorption rotor described above.
  • the portion of the honeycomb structure 1 that is heated by voltage application to the pair of electrodes 20a and 20b moves toward the cooling zone Z3 by the rotation of the VOC adsorption rotor 10.
  • FIGS. 1 and 2 by arranging the pair of electrodes 20a and 20b near the adsorption zone Z1, it is possible to directly heat the honeycomb structure 1 in the desorption zone Z2 at an early stage. Therefore, VOCs can be effectively removed.
  • honeycomb structures 1 having different shapes of cells 2 two of the first fine shape reproduction model 21 shown in FIG. 3(a) and the second fine shape reproduction model 23 shown in FIG. 4(a) are used. Created different types of models.
  • a first uniform equivalent physical property model 22 (FIG. 3(b)) corresponding to the first fine shape reproduction model 21, and a second uniform equivalent physical property model 22 (FIG. 3(b)) corresponding to the second fine shape reproduction model 23 are used.
  • a uniform equivalent physical property model 24 (FIG. 4(b)) was created.
  • the X-axis direction, Y-axis direction, and Z-axis direction of the first uniform equivalent physical property model 22 shown in FIG. 3(b) and the second uniform equivalent physical property model 24 shown in FIG. 4(b) are 10 in the circumferential direction, radial direction, and rotation axis direction, respectively.
  • the circumferential dimension La of the cell 2 is 3.3 mm
  • the radial dimension Lb is 2.0 mm
  • the rotational axis dimension Ld (not shown) ) is 0.05 mm
  • the conductivity ⁇ of the honeycomb structure 1 is 1/(142 ⁇ 10 8 )S/m
  • the dimension of the first uniform equivalent physical property model 22 in the Z-axis direction is 0.1 mm.
  • Table 1 shows the resistances of the first fine shape reproduction model 21 and the first uniform equivalent physical property model 22 in the X-axis direction, Y-axis direction, and Z-axis direction.
  • the resistance in the X-axis direction of the first uniform equivalent physical property model 22 has an error of 10% or less with respect to the resistance in the X-axis direction of the first fine shape reproduction model 21.
  • 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 in the resistance in the Y-axis direction and the resistance in the Z-axis direction of the first fine shape reproduction model 21. is 10% or less. Therefore, when performing a simulation, it is possible to use the first uniform equivalent physical property model 22, which is a simplified model, instead of the first fine shape reproduction model 21.
  • the conductivity ⁇ of the honeycomb structure 1 is 1/(142 ⁇ 10 8 )S/m
  • the dimension of the second uniform equivalent physical property model 24 in the Z-axis direction is 0.1 mm.
  • Table 2 shows the resistances of the second fine shape reproduction model 23 and the second uniform equivalent physical property model 24 in the X-axis direction, Y-axis direction, and Z-axis direction.
  • the resistance in the X-axis direction of the second uniform equivalent physical property model 24 has an error of 10% or less with respect to the resistance in the X-axis direction of the second fine shape reproduction model 23.
  • 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 in the resistance in the Y-axis direction and the resistance in the Z-axis direction of the second fine shape reproduction model 23. is 10% or less. Therefore, when performing a simulation, it is possible to use the second uniform equivalent physical property model 24, which is a simplified model, instead of the second fine shape reproduction model 23.
  • the conductivity in the X-axis direction, the conductivity in the Y-axis direction, and the conductivity in the Z-axis direction are calculated using the following equations (1) to (3). It is indicated by.
  • FIG. 5(a) is a graph showing the normalized conductivity in the X-axis direction and the normalized conductivity in the Y-axis direction with respect to (2Lb/La).
  • FIG. 5B is a graph in which the vertical axis of the graph shown in FIG. 5A is a logarithmic axis. Note that in FIGS. 5(a) and 5(b), the horizontal axis is a logarithmic axis.
  • "X-axis direction” indicates the standardized conductivity in the X-axis direction
  • Y-axis direction indicates the normalized conductivity.
  • the electrical conductivity in the Y-axis direction, and the term "Z-axis direction” is the standardized electrical conductivity in the Z-axis direction.
  • the conductivity in the X-axis direction and the conductivity in the Y-axis direction are less than or equal to the conductivity in the Z-axis direction. Further, the conductivity in the X-axis direction and the conductivity in the Y-axis direction are in a trade-off relationship with each other, and if one attempts to reduce the conductivity, the other conductivity increases.
  • the amount of heat generated in the radial direction 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 and 20b that are long in the radial direction, it is possible to increase the amount of heat generated in the radial direction. Therefore, when a voltage is applied to the pair of electrodes 20a and 20b, if the amount of heat generated in the circumferential direction of the VOC adsorption rotor 10, which is the rotational direction, is large, the adsorbed VOCs are effectively desorbed in the desorption zone Z2.
  • (2Lb/La) may be increased. 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 4 or more, That is, Lb/La is preferably 2 or more. Further, 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.
  • FIG. 6 is a diagram showing the results obtained by simulation of the temperature distribution of the honeycomb structure 1 when a voltage is applied to the pair of electrodes 20a, 20b in contact with the VOC adsorption rotor 10, as shown in FIG. (a) shows the temperature distribution when the first uniform equivalent physical property model 22 is used, and (b) shows the temperature distribution when the second uniform equivalent physical property model 24 is used.
  • FIG. 6(c) four block bodies 25 using the first uniform equivalent physical property model 22 or the second uniform equivalent physical property model 24 are stacked in a manner arranged vertically and horizontally.
  • the temperature distribution when a voltage was applied to a pair of electrodes 26a and 26b arranged at opposing positions in the Z-axis direction with respect to the block body 25 was investigated.
  • the block body 25 shown in FIGS. 6(a) and 6(b) indicates the block body 25 located at the lower right of the four block bodies 25 shown in FIG. 6(c).
  • the darker the region the higher the temperature. That is, the black area has a higher temperature than the white area.
  • the second uniform equivalent physical property model 24 when the second uniform equivalent physical property model 24 is used, the high temperature region spreads over a wider range compared to when the first uniform equivalent physical property model 22 is used. Furthermore, the temperature in the X-axis direction corresponding to the circumferential direction is high over a wide range. That is, in order to more effectively desorb adsorbed VOCs, Lb/La should be set at a lower value than the first fine shape reproduction model 21 (FIG. 3(a)) in which Lb/La is approximately 0.6.
  • the second fine shape reproduction model 23 (FIG. 4(a)) where is 10 is more preferable.
  • /La is preferably 2 or more, and more preferably Lb/La is 3 or more.
  • the present invention is not limited to the above embodiments, and various applications and modifications can be made within the scope of the present invention.
  • the pair of electrodes 20a and 20b arranged in the desorption zone Z2 was explained as one set, but it is also possible to arrange a plurality of sets and apply a voltage to the plural sets of electrodes. It's okay. In that case, it becomes possible to heat a wide range of the honeycomb structure 1 in the desorption zone Z2 at once.
  • the honeycomb structure 1 in the cooling zone Z3 is cooled by passing the gas for cooling the honeycomb structure 1 through the cooling zone Z3.
  • the honeycomb structure 1 at Z3 may be cooled.
  • the VOC removal device in this application is as follows. ⁇ 1>.
  • a VOC adsorption rotor comprising a honeycomb structure supporting an adsorbent for adsorbing VOC; a pair of electrodes arranged on both outer sides of the VOC adsorption rotor in the extending direction of the rotating shaft of the VOC adsorption rotor, and arranged at positions in contact with the VOC adsorption rotor; a voltage application device capable of applying a voltage to the pair of electrodes; Equipped with The honeycomb structure is made of metal,
  • the pair of electrodes includes an adsorption zone provided in the VOC adsorption rotor for passing the gas to be treated and adsorbing VOCs contained in the gas to be treated, and an adsorption zone for adsorbing VOCs contained in the gas to be treated;
  • a VOC removal device characterized in that the device is disposed in the desorption zone of a desorption zone for cooling the honeycomb structure and
  • each of the pair of electrodes has a shape extending in the radial direction of the VOC adsorption rotor.
  • Lb/La is 2 or more, where La is the circumferential dimension of the cells constituting the honeycomb structure of the VOC adsorption rotor, and Lb is the radial dimension of the cells.
  • Lb/La is 3 or more, where La is the circumferential dimension of the cells constituting the honeycomb structure of the VOC adsorption rotor, and Lb is the radial dimension of the cells. 2>.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • Biomedical Technology (AREA)
  • Separation Of Gases By Adsorption (AREA)
  • Treating Waste Gases (AREA)
PCT/JP2023/019749 2022-06-03 2023-05-26 Ｖｏｃ除去装置 Ceased WO2023234217A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2024524826A JP7798190B2 (ja) 2022-06-03 2023-05-26 Ｖｏｃ除去装置
CN202380042355.4A CN119173328A (zh) 2022-06-03 2023-05-26 Voc除去装置
US18/960,146 US20250083095A1 (en) 2022-06-03 2024-11-26 Voc removal apparatus

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JP2003025034A (ja) * 2001-07-09 2003-01-28 Matsumoto Giken Kk ハニカム状ローターとその製造方法
JP2003230814A (ja) * 2002-02-07 2003-08-19 Daikin Ind Ltd ガス処理装置
JP2004041847A (ja) * 2002-07-09 2004-02-12 Daikin Ind Ltd 空気浄化装置
JP2004243279A (ja) * 2003-02-17 2004-09-02 National Institute Of Advanced Industrial & Technology 有機汚染物を含有するガスを清浄化するための方法及び装置
JP2009226319A (ja) * 2008-03-24 2009-10-08 Nichias Corp ガス濃縮装置
JP2010172804A (ja) * 2009-01-28 2010-08-12 Kyuchaku Gijutsu Kogyo Kk 吸着剤を利用した水分除去、冷熱の回収を行う、温度スイング法ｖｏｃ濃縮、低温液化ｖｏｃ回収方法。
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JP2019179622A (ja) * 2018-03-30 2019-10-17 アマノ株式会社 放電電極および集塵機
JP2021529653A (ja) * 2018-06-29 2021-11-04 マンターズ コーポレイションＭｕｎｔｅｒｓ Ｃｏｒｐｏｒａｔｉｏｎ 再利用単離ループおよびパージ／再生ループを備えた回転床収着システム

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