WO2017038923A1 - Catalyst fixing device and catalyst fixing method - Google Patents

Catalyst fixing device and catalyst fixing method Download PDF

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Publication number
WO2017038923A1
WO2017038923A1 PCT/JP2016/075610 JP2016075610W WO2017038923A1 WO 2017038923 A1 WO2017038923 A1 WO 2017038923A1 JP 2016075610 W JP2016075610 W JP 2016075610W WO 2017038923 A1 WO2017038923 A1 WO 2017038923A1
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Prior art keywords
catalyst
catalyst carrier
carrier
slurry
sealing material
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PCT/JP2016/075610
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French (fr)
Japanese (ja)
Inventor
知弘 山田
孝行 宇賀神
匡広 武井
聡宏 加藤
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株式会社明電舎
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Priority to CN201680050831.7A priority Critical patent/CN107921426B/en
Publication of WO2017038923A1 publication Critical patent/WO2017038923A1/en

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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
    • B01D53/34—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
    • 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
    • B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors

Definitions

  • the present invention relates to a catalyst fixing device and a catalyst fixing method for supporting a catalyst component in a channel of a catalyst carrier in which a plurality of channels are formed.
  • a catalytic converter or the like is used as a purification device for decomposing and removing harmful components in exhaust gas discharged from an automobile engine.
  • the catalytic converter is manufactured, for example, by coating a honeycomb support made of ceramics, heat-resistant alloy foil or the like with a liquid (slurry) containing a catalyst component such as platinum or palladium.
  • An object of the present invention is to provide a technique for suppressing slurry leakage in the step of introducing a slurry containing a catalyst component into a channel of a catalyst support.
  • One aspect of the catalyst fixing device of the present invention for achieving the above object is a carrier connection portion connected to a catalyst carrier having a plurality of channels formed therein and introducing a liquid containing a catalyst component into the channel of the catalyst carrier.
  • a seal material provided at a connection portion between the carrier connection portion and the catalyst carrier connected to the carrier connection portion; and a pressing means for pressing the seal material in the direction of the catalyst carrier, the seal material comprising It is a foam material.
  • the seal material in the catalyst fixing device, can be compressed by 70% or more by the pressure contact means.
  • A A top view of a catalyst fixing device according to a first embodiment of the present invention, (b) a schematic side view of the catalyst fixing device, (c) a top view of an essential part of the catalyst fixing device. It is a top view of a catalyst fixing device concerning a 2nd embodiment of the present invention.
  • a catalyst fixing device and a catalyst fixing method according to an embodiment of the present invention is a liquid containing a catalyst component on the surface of a channel (or cell) of a catalyst support in which a plurality of channels (passages) or cells are formed (hereinafter referred to as slurry). ) Is to be carried out.
  • the catalyst support is, for example, a structure formed of a ceramic such as cordierite, silicon carbide, aluminum nitride, silicon nitride, aluminum titanate, a heat resistant alloy foil or the like.
  • the catalyst support is formed in a cylindrical shape, a polygonal columnar shape, or the like according to the application.
  • a plurality of channels are formed along the length of the catalyst support. Each channel is open at the end of the catalyst support.
  • the cross-sectional shape of the channel is formed into a circle, an ellipse, a rectangle, a polygon (for example, a honeycomb) or the like.
  • the slurry is an aqueous solution containing catalyst components such as platinum group metal compounds such as platinum, palladium and rhodium, and transition metal catalyst precursors such as iron, copper, vanadium and cerium. is there.
  • the slurry contains particulate catalyst support materials (eg, titania, zirconia, zeolite, etc.) that support these catalyst components.
  • the slurry may contain an acid, an organic compound thickener or the like for improving the catalyst activity, viscosity and flowability.
  • the catalyst carrier coated on the slurry is not limited to the use for purifying the exhaust gas of a car, the catalyst component having the necessary catalytic activity is contained in the slurry depending on the use.
  • a catalyst carrier coated with slurry is also applied to the exhaust gas purification application of a diesel engine / coal combustion device of a generator.
  • the catalyst fixing device 1 has an installation frame 3 (for example, corresponding to a carrier connection portion) to which a catalyst carrier 2 is connected.
  • a pedestal 4 a seal member 5 surrounding a connecting portion between the catalyst carrier 2 and the installation frame 3, clamps 6 to 9 (for example, corresponding to pressure contact means) urging the seal member 5 in the direction of the catalyst carrier 2
  • a catalyst supply unit 10 for introducing a liquid (slurry) containing the components into the channels of the catalyst carrier 2.
  • the installation frame 3 is provided on the base 4.
  • the base 4 is formed with a hole passing through the base 4 and communicating with the inside of the installation frame 3.
  • the open end of the installation frame 3 is connected to the end of the catalyst carrier 2 in which the channel opening is formed. That is, the catalyst carrier 2 is connected to the installation frame 3 in a state where the inside of the frame of the installation frame 3 and the channel (not shown) of the catalyst carrier 2 are in communication. If the shape of the outer periphery of the installation frame 3 is the same as the shape of the end face of the catalyst carrier 2 on which the channel openings are formed, the displacement at the connection portion between the catalyst carrier 2 and the installation frame 3 is reduced. The sealing effect of the sealing material 5 at the connection portion with the installation frame 3 can be further enhanced.
  • the inner periphery of the installation frame 3 a little larger than the shape of the end face of the catalyst carrier 2 where the channel opening is formed, the end of the catalyst carrier 2 is engaged with and connected to the installation frame 3 And the connection of the catalyst carrier 2 is facilitated.
  • the sealing material 5 is provided on the base 4 so as to surround the installation frame 3 (and the catalyst carrier 2) as shown in FIG. 1 (c). Therefore, the height of the sealing material 5 is preferably higher than the height of the installation frame 3.
  • the sealing material 5 is not particularly limited as long as it can be compressed by the clamps 6 to 9 or a cylinder and becomes watertight after compression.
  • the sealing material 5 is preferably formed of an elastic body such as ethylene propylene rubber, and in addition, those formed of polyurethane, polyolefin, polyethylene, rubber or the like are used.
  • the sealing material 5 when the sealing material 5 is formed of a foam material having cells inside, the sealing material 5 can be compressed by 70% or more (more preferably, 80% or more).
  • 70% or more compression means that when the volume of the sealing material 5 in the initial state is 100, it can be compressed to 30 or less.
  • the air bubbles formed in the sealing material 5 may be independent or semi-independent continuous.
  • the clamps 6 to 9 press the sealing material 5 in the direction of the catalyst carrier 2 (and the installation frame 3).
  • the shape and number of the clamps 6 to 9 are selected according to the shape of the horizontal cross section of the catalyst carrier 2 (and the installation frame 3).
  • FIG. 1A since the horizontal cross section of the catalyst carrier 2 is rectangular, clamps 6 to 9 are provided corresponding to each side.
  • the clamps 6 and 7 are provided movably in the normal direction of the side surface of the opposite catalyst carrier 2. Then, in a state where the clamps 6 and 7 press the seal member 5, the clamps 6 and 7 are fixed to perform compression of the seal member 5 (compression in the horizontal direction in FIG. 1A).
  • the clamps 8 and 9 are rotatably provided at the ends of the clamps 6 and 7, respectively. Then, in a state where the clamps 6 and 7 are compressing the sealing material 5, the clamps 8 and 9 are rotated to perform compression of the sealing material 5 (compression in the vertical direction in FIG. 1A).
  • the catalyst supply unit 10 is provided on the surface opposite to the surface on which the installation frame 3 of the base 4 is provided.
  • the catalyst supply unit 10 is connected to a hole communicating with the inside of the frame of the installation frame 3 formed on the base 4, and the slurry in the channel of the catalyst carrier 2 via the hole formed on the base 4 and the inside of the frame of the installation frame 3 Supply. That is, the hole formed in the stand 4 and the inside of the frame of the installation frame 3 become a slurry supply path (or discharge path).
  • the slurry may be supplied to the channels of the catalyst carrier 2 either by injecting the slurry from the catalyst supply unit 10 or by suction (or natural flow) of the slurry by the catalyst supply unit 10. Furthermore, the slurry may be injected by any method such as injection by a pump or a cylinder and a cylinder head.
  • the seal member 5 having a thickness of 10 mm was disposed on the installation frame 3, and the catalyst carrier 2 (for example, a honeycomb carrier of 150 mm square) was installed on the installation frame 3. Then, the seal material 5 was compressed in the direction of the catalyst carrier 2 by the clamps 6 to 9. By compressing the sealing material 5 in this manner, the thickness of the sealing material 5 became 2 to 3 mm. That is, by sufficiently compressing the sealing material 5 (the compression ratio is 70% or more, more preferably 80% or more) by the clamps 6 to 9, the air bubbles inside the sealing material 5 are crushed and become a watertight body. It was possible to seal along the outline of. By compressing the sealing material 5 in this manner, the sealing material 5 functions as a seal and a fixing and maintaining body between the catalyst carrier 2 and the clamps 6 to 9.
  • the catalyst carrier 2 for example, a honeycomb carrier of 150 mm square
  • the slurry was injected (or sucked) from the catalyst supply unit 10 into the channel of the catalyst carrier 2.
  • the upper part of the catalyst carrier 2 was provided with a tape or a cap surrounding the upper periphery of the catalyst carrier 2 so that the slurry would not overflow.
  • the liquid component of the slurry coated on the catalyst carrier 2 is removed from the catalyst carrier 2 by drying, and the catalyst component remains in the channel of the catalyst carrier 2.
  • the catalyst carrier 2 and the installation frame 3 Slurry leakage from the connection of As a result, slurry can be supplied (supported) only in the channel of the catalyst support 2.
  • sealing of the connection portion between the catalyst carrier 2 and the installation frame 3 is maintained by the sealing material 5. Sealing of the corners of the carrier 2 can be maintained to ensure quantitativeness of the amount of slurry introduced into the channels of the catalyst carrier 2.
  • clamp 6 and clamp 8 are provided along the corner of catalyst support 2 and a seal that can be compressed by 70% or more between catalyst support 2 and clamp 6 (and between catalyst support 2 and clamp 8)
  • a seal that can be compressed by 70% or more between catalyst support 2 and clamp 6 (and between catalyst support 2 and clamp 8)
  • the material 5 it is possible to suppress the leakage of the slurry at the corner of the catalyst support 2.
  • the clamp 6 and the clamp 9 others, the clamp 7 and the clamps 8 and 9) along the corner of the catalyst carrier 2
  • the slurry leakage at the corner of the catalyst carrier 2 can be suppressed. .
  • the catalyst carrier 2 can be fixed and sealed by compressing the sealing material 5 with the clamps 6 to 9, the catalyst carrier 2 can be easily fixed to the installation frame 3, and the slurry in the channels of the catalyst carrier 2 The covering operation becomes easy.
  • slurry introduction to the catalyst carrier 2 becomes easy, and in particular, when introducing a high viscosity slurry into the catalyst carrier 2, the working efficiency is improved. .
  • the catalyst fixing device according to the second embodiment of the present invention is provided with cylinders for pressing the clamps 6 to 9 in the catalyst fixing device 1 according to the first embodiment of the present invention. Therefore, about the structure similar to the catalyst fixing device 1 which concerns on 1st Embodiment, the same code
  • the catalyst fixing device 11 includes a base 4 having an installation frame 3 to which the catalyst carrier 2 is connected, a connecting portion between the catalyst carrier 2 and the installation frame 3. It has a sealing material 5 to be enclosed, clamps 6-9 for compressing the sealing material 5 in the direction of the catalyst carrier 2, and cylinders 12-15 (for example, corresponding to pressure contact means) for pressing the clamps 6-9.
  • a catalyst supply unit 10 for introducing a liquid containing a catalyst component into the channel of the catalyst carrier 2 is provided on the surface opposite to the surface on which the installation frame 3 of the stand 4 is provided.
  • the cylinders 12 to 15 are provided corresponding to the respective clamps 6 to 9 and press the clamps 6 to 9 in the direction of the catalyst carrier 2 (and the installation frame 3).
  • the seal member 5 having a thickness of 30 mm was disposed on the installation frame 3, and the catalyst carrier 2 was installed on the installation frame 3. Then, the seal material 5 was compressed in the direction of the catalyst carrier 2 by the clamps 6-9, and the clamps 6-9 were pressed by the cylinders 12-15.
  • the thickness of the sealing material 5 became 6 to 9 mm. That is, by sufficiently compressing the sealing material 5 (the compression ratio is 70% or more, more preferably 80% or more) with the clamps 6 to 9 (and the cylinders 12 to 15), the air bubbles inside the sealing material 5 are crushed. It became a watertight body and could be sealed along the outer shape of the catalyst carrier 2.
  • the sealing material 5 functions as a seal and a fixing and maintaining body between the catalyst carrier 2 and the clamps 6 to 9.
  • the slurry was injected (or sucked) from the catalyst supply unit 10 into the channel of the catalyst carrier 2.
  • the upper part of the catalyst carrier 2 was provided with a tape or a cap surrounding the upper periphery of the catalyst carrier 2 so that the slurry would not overflow.
  • the catalyst fixing device 11 as in the catalyst fixing device 1 according to the first embodiment, slurry leakage from the connection between the catalyst carrier 2 and the installation frame 3 occurs. Be suppressed. As a result, the slurry can be supplied (supported) only in the channel of the catalyst carrier 2, and the quantitativeness of the amount of slurry introduced into the channel can be secured.
  • the compression pressure of the sealing material 5 is increased, so that sealing and fixing of the catalyst carrier 2 and the installation frame 3 become more reliable.
  • the thickness of the sealing material 5 can be increased, the seal between the catalyst carrier 2 and the installation frame 3 can be made more reliable.
  • the catalyst fixing device and the catalyst fixing method of the present invention are not limited to the embodiment, and insofar as the features of the invention are not impaired. Design changes can be made as appropriate, and modified forms are also within the technical scope of the present invention.
  • the sealing material (seal structure) of the present invention can be applied not only to the lower end portion of the catalyst carrier but also to the upper end portion. Furthermore, the seal material (seal structure) of the present invention can be applied to both ends of the catalyst support to prevent slurry leakage at each end of the catalyst support.
  • sealing material is preferably integral, it is also possible to use a sealing material which is divided and disposed.
  • the shapes and the number of clamps and cylinders are not limited to the embodiment, and may be appropriately changed according to the shape of the cross section of the catalyst carrier (the cross section in the direction perpendicular to the channel extending direction).
  • the cross section of the catalyst support is a circle or an ellipse
  • the shape of the clamp is also formed along the curved surface of the catalyst support.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Materials Engineering (AREA)
  • Combustion & Propulsion (AREA)
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  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

Provided is a catalyst fixing device (1) for introducing a slurry inside a channel of a catalyst carrier (2). This catalyst fixing device (1) has: a stand (4) having an installation frame (3) to which the catalyst carrier (2) is connected; a sealing material (5) that surrounds a connection section of the catalyst carrier (2) and the installation frame (3); clamps (6)-(9) which bias the sealing material (5) in the catalyst carrier (2) direction; and a catalyst supply unit (10) that introduces in the catalyst carrier (2) a liquid (slurry) including a catalyst component. The catalyst carrier (2) is connected to the installation frame (3) and the sealing material (5) is compressed by the clamps (6)-(9). The slurry is introduced in the channel of the catalyst carrier (2) from the catalyst supply unit (10) after sealing the connection section of the catalyst carrier (2) and the installation frame (3) in a water-tight manner by compressing the sealing material (5).

Description

触媒固定装置及び触媒固定方法Catalyst fixing device and catalyst fixing method
　本発明は、複数のチャンネルが形成された触媒担体のチャンネル内に触媒成分を担持するための触媒固定装置及び触媒固定方法に関する。 The present invention relates to a catalyst fixing device and a catalyst fixing method for supporting a catalyst component in a channel of a catalyst carrier in which a plurality of channels are formed.
　自動車のエンジンから排出される排ガス中の有害成分を分解除去する浄化装置として、触媒コンバータ等が用いられている。触媒コンバータは、例えば、セラミックスや耐熱合金箔等からなるハニカム担体に白金やパラジウム等の触媒成分を含む液体（スラリ）を被覆することにより製造される。 A catalytic converter or the like is used as a purification device for decomposing and removing harmful components in exhaust gas discharged from an automobile engine. The catalytic converter is manufactured, for example, by coating a honeycomb support made of ceramics, heat-resistant alloy foil or the like with a liquid (slurry) containing a catalyst component such as platinum or palladium.
　このような複数のチャンネル（通路）が形成された触媒担体のチャンネルに触媒成分を担持する方法として、チャンネルの開口から触媒成分を含有するスラリを導入する方法が知られている（例えば、特許文献１乃至３）。 As a method of supporting a catalyst component on a channel of a catalyst carrier in which a plurality of channels (passages) are formed, a method of introducing a slurry containing the catalyst component from the opening of the channel is known (for example, patent documents 1 to 3).
　しかしながら、触媒担体のチャンネル内にスラリを導入する工程において、スラリを供給する供給部と触媒担体との接続部からスラリが漏出した場合、チャンネル内に導入されるスラリ量の定量性が確保されなくなるおそれがある。 However, in the step of introducing the slurry into the channel of the catalyst support, when the slurry leaks from the connection portion between the supply unit supplying the slurry and the catalyst support, the quantitative property of the amount of slurry introduced into the channel can not be secured. There is a fear.
特表２０１３－５１６３０７号公報Japanese Patent Application Publication No. 2013-516307 特表２０１２－５２１２８６号公報JP 2012-521286 gazette 特開２００５－２５４０６９号公報JP 2005-254069
　本発明は、触媒担体のチャンネル内に触媒成分を含有するスラリを導入する工程におけるスラリの漏出を抑制する技術を提供することを目的とする。 An object of the present invention is to provide a technique for suppressing slurry leakage in the step of introducing a slurry containing a catalyst component into a channel of a catalyst support.
　上記目的を達成する本発明の触媒固定装置の一態様は、複数のチャンネルが形成された触媒担体が接続され、当該触媒担体のチャンネル内に触媒成分を含有する液体を導入する担体接続部と、前記担体接続部と当該担体接続部に接続された触媒担体との接続部に設けられるシール材と、前記シール材を前記触媒担体方向に圧接する圧接手段と、を有し、前記シール材は、発泡材料である。 One aspect of the catalyst fixing device of the present invention for achieving the above object is a carrier connection portion connected to a catalyst carrier having a plurality of channels formed therein and introducing a liquid containing a catalyst component into the channel of the catalyst carrier. A seal material provided at a connection portion between the carrier connection portion and the catalyst carrier connected to the carrier connection portion; and a pressing means for pressing the seal material in the direction of the catalyst carrier, the seal material comprising It is a foam material.
　また、上記目的を達成する本発明の触媒固定装置の他の態様は、上記触媒固定装置において、前記シール材は、前記圧接手段により７０％以上圧縮可能である。 In another aspect of the catalyst fixing device of the present invention for achieving the above object, in the catalyst fixing device, the seal material can be compressed by 70% or more by the pressure contact means.
　また、上記目的を達成する本発明の触媒固定方法は、複数のチャンネルを有する触媒担体と、当該触媒担体のチャンネル内に触媒成分を含有する液体を導入する担体接続部と、を接続する工程と、前記担体接続部と前記触媒担体との接続部に設けられたシール材を、前記触媒担体方向に圧接する工程と、前記触媒成分を含有する液体を前記触媒担体のチャンネル内に導入する工程と、を含む。 Further, a catalyst fixing method of the present invention for achieving the above object comprises the step of connecting a catalyst carrier having a plurality of channels and a carrier connection portion for introducing a liquid containing a catalyst component into the channels of the catalyst carrier. A step of pressing a seal material provided at a connection portion between the carrier connection portion and the catalyst carrier toward the catalyst carrier, a step of introducing a liquid containing the catalyst component into a channel of the catalyst carrier, ,including.
（ａ）本発明の第１実施形態に係る触媒固定装置の上面図、（ｂ）同触媒固定装置の概略側面図、（ｃ）同触媒固定装置の要部上面図である。(A) A top view of a catalyst fixing device according to a first embodiment of the present invention, (b) a schematic side view of the catalyst fixing device, (c) a top view of an essential part of the catalyst fixing device. 本発明の第２実施形態に係る触媒固定装置の上面図である。It is a top view of a catalyst fixing device concerning a 2nd embodiment of the present invention.
　本発明の実施形態に係る触媒固定装置及び触媒固定方法について、図面を参照して詳細に説明する。 A catalyst fixing device and a catalyst fixing method according to an embodiment of the present invention will be described in detail with reference to the drawings.
　本発明の実施形態に係る触媒固定装置及び触媒固定方法は、複数のチャンネル（通路）またはセルが形成された触媒担体のチャンネル（またはセル）表面に、触媒成分を含む液体（以下、スラリと称する）を被覆する工程を行うものである。 A catalyst fixing device and a catalyst fixing method according to an embodiment of the present invention is a liquid containing a catalyst component on the surface of a channel (or cell) of a catalyst support in which a plurality of channels (passages) or cells are formed (hereinafter referred to as slurry). ) Is to be carried out.
　触媒担体は、例えば、コージライト、炭化ケイ素、窒化アルミニウム、窒化ケイ素、チタン酸アルミニウム等のセラミックスや耐熱合金箔等により形成される構造物である。触媒担体は、用途に応じて円柱や多角柱状等に形成される。また、触媒担体には、触媒担体の長さ方向に沿って複数のチャンネルが形成される。各チャンネルは、触媒担体の端部にて開放端となっている。チャンネルの断面形状は、円、楕円、矩形、多角形（例えば、ハニカム）等に形成される。 The catalyst support is, for example, a structure formed of a ceramic such as cordierite, silicon carbide, aluminum nitride, silicon nitride, aluminum titanate, a heat resistant alloy foil or the like. The catalyst support is formed in a cylindrical shape, a polygonal columnar shape, or the like according to the application. Also, in the catalyst support, a plurality of channels are formed along the length of the catalyst support. Each channel is open at the end of the catalyst support. The cross-sectional shape of the channel is formed into a circle, an ellipse, a rectangle, a polygon (for example, a honeycomb) or the like.
　スラリは、例えば、自動車の排ガスを浄化する触媒の場合、白金、パラジウム及びロジウム等の白金族金属化合物や、鉄、銅、バナジウム及びセリウムといった遷移金属触媒前駆体等の触媒成分を含有する水溶液である。さらに、スラリには、これら触媒成分を支持する粒子触媒支持物質（例えば、チタニア、ジルコニア、ゼオライト等）が含有される。また、スラリは、触媒活性度や粘性及び流動性を改善させるための酸や有機化合物増粘剤等を含む場合がある。なお、スラリに被覆された触媒担体は、自動車の排ガスを浄化する用途に限定されるものではないので、用途に応じて必要な触媒活性を有する触媒成分がスラリに含有される。例えば、スラリが被覆された触媒担体は、発電機のディーゼルエンジン・石炭燃焼装置の排ガス浄化用途にも適用される。 For example, in the case of a catalyst for purifying automobile exhaust gas, the slurry is an aqueous solution containing catalyst components such as platinum group metal compounds such as platinum, palladium and rhodium, and transition metal catalyst precursors such as iron, copper, vanadium and cerium. is there. Furthermore, the slurry contains particulate catalyst support materials (eg, titania, zirconia, zeolite, etc.) that support these catalyst components. In addition, the slurry may contain an acid, an organic compound thickener or the like for improving the catalyst activity, viscosity and flowability. In addition, since the catalyst carrier coated on the slurry is not limited to the use for purifying the exhaust gas of a car, the catalyst component having the necessary catalytic activity is contained in the slurry depending on the use. For example, a catalyst carrier coated with slurry is also applied to the exhaust gas purification application of a diesel engine / coal combustion device of a generator.
　［第１実施形態］
　図１（ａ），（ｂ）に示すように、本発明の第１実施形態に係る触媒固定装置１は、触媒担体２が接続される設置枠３（例えば、担体接続部に相当）を有する台４と、触媒担体２と設置枠３との接続部を囲繞するシール材５と、シール材５を触媒担体２方向に付勢するクランプ６～９（例えば、圧接手段に相当）と、触媒成分を含む液体（スラリ）を触媒担体２のチャンネルに導入する触媒供給部１０と、を有する。 First Embodiment
As shown in FIGS. 1A and 1B, the catalyst fixing device 1 according to the first embodiment of the present invention has an installation frame 3 (for example, corresponding to a carrier connection portion) to which a catalyst carrier 2 is connected. A pedestal 4, a seal member 5 surrounding a connecting portion between the catalyst carrier 2 and the installation frame 3, clamps 6 to 9 (for example, corresponding to pressure contact means) urging the seal member 5 in the direction of the catalyst carrier 2 And a catalyst supply unit 10 for introducing a liquid (slurry) containing the components into the channels of the catalyst carrier 2.
　設置枠３は、台４上に設けられる。台４には、台４を貫通し、設置枠３の枠内と連通する穴が形成される。設置枠３の開口端には、触媒担体２のチャンネル開口が形成された端部が接続される。すなわち、触媒担体２は、設置枠３の枠内と触媒担体２のチャンネル（図示せず）が連通した状態で設置枠３に接続される。なお、設置枠３の外周の形状が触媒担体２のチャンネル開口が形成された端面の形状と同じであると、触媒担体２と設置枠３の接続部におけるずれが少なくなるので、触媒担体２と設置枠３との接続部におけるシール材５の密閉効果をより高めることができる。また、設置枠３の内周の形状を触媒担体２のチャンネル開口が形成された端面の形状より少し大きく形成することで、設置枠３に触媒担体２の端部を嵌合して接続することができ、触媒担体２の接続が容易となる。 The installation frame 3 is provided on the base 4. The base 4 is formed with a hole passing through the base 4 and communicating with the inside of the installation frame 3. The open end of the installation frame 3 is connected to the end of the catalyst carrier 2 in which the channel opening is formed. That is, the catalyst carrier 2 is connected to the installation frame 3 in a state where the inside of the frame of the installation frame 3 and the channel (not shown) of the catalyst carrier 2 are in communication. If the shape of the outer periphery of the installation frame 3 is the same as the shape of the end face of the catalyst carrier 2 on which the channel openings are formed, the displacement at the connection portion between the catalyst carrier 2 and the installation frame 3 is reduced. The sealing effect of the sealing material 5 at the connection portion with the installation frame 3 can be further enhanced. Further, by forming the inner periphery of the installation frame 3 a little larger than the shape of the end face of the catalyst carrier 2 where the channel opening is formed, the end of the catalyst carrier 2 is engaged with and connected to the installation frame 3 And the connection of the catalyst carrier 2 is facilitated.
　シール材５は、図１（ｃ）に示すように、設置枠３（及び触媒担体２）を囲繞するように台４に設けられる。したがって、シール材５の高さは、設置枠３の高さより高い方が好ましい。シール材５は、クランプ６～９やシリンダ等により圧縮可能であり圧縮した後に水密性となるものであれば特に限定されるものではない。例えば、シール材５は、エチレンプロピレンゴム等の弾性体により形成されたものが好ましく、その他、ポリウレタン、ポリオレフィン、ポリエチレン、ゴム等により形成されたものが用いられる。さらに、シール材５が、内部に気泡を有する発泡材料で形成されたものであると、シール材５を７０％以上（より好ましくは、８０％以上）圧縮することが可能となる。ここでいう７０％以上圧縮するとは、シール材５の初期状態の体積を１００とした場合、体積が３０以下となるまで圧縮することが可能であることをいう。なお、シール材５に形成される気泡は、独立型であっても半独立連続型であってもよい。 The sealing material 5 is provided on the base 4 so as to surround the installation frame 3 (and the catalyst carrier 2) as shown in FIG. 1 (c). Therefore, the height of the sealing material 5 is preferably higher than the height of the installation frame 3. The sealing material 5 is not particularly limited as long as it can be compressed by the clamps 6 to 9 or a cylinder and becomes watertight after compression. For example, the sealing material 5 is preferably formed of an elastic body such as ethylene propylene rubber, and in addition, those formed of polyurethane, polyolefin, polyethylene, rubber or the like are used. Furthermore, when the sealing material 5 is formed of a foam material having cells inside, the sealing material 5 can be compressed by 70% or more (more preferably, 80% or more). Here, 70% or more compression means that when the volume of the sealing material 5 in the initial state is 100, it can be compressed to 30 or less. The air bubbles formed in the sealing material 5 may be independent or semi-independent continuous.
　クランプ６～９は、シール材５を触媒担体２（及び設置枠３）方向に押圧する。クランプ６～９は、触媒担体２（及び設置枠３）の水平方向断面の形状に応じて形状及び数が選択される。例えば、図１（ａ）では、触媒担体２の水平方向断面が矩形であるので、各辺に対応してクランプ６～９が設けられる。クランプ６，７は、対向する触媒担体２の側面の法線方向に移動可能に設けられる。そして、クランプ６，７がシール材５を押圧した状態で、クランプ６，７を固定することでシール材５の圧縮（図１（ａ）の左右方向の圧縮）が行われる。また、クランプ８，９は、それぞれクランプ６，７の端部に回動可能に設けられる。そして、クランプ６，７がシール材５を圧縮している状態で、クランプ８，９を回動してシール材５の圧縮（図１（ａ）の上下方向の圧縮）が行われる。 The clamps 6 to 9 press the sealing material 5 in the direction of the catalyst carrier 2 (and the installation frame 3). The shape and number of the clamps 6 to 9 are selected according to the shape of the horizontal cross section of the catalyst carrier 2 (and the installation frame 3). For example, in FIG. 1A, since the horizontal cross section of the catalyst carrier 2 is rectangular, clamps 6 to 9 are provided corresponding to each side. The clamps 6 and 7 are provided movably in the normal direction of the side surface of the opposite catalyst carrier 2. Then, in a state where the clamps 6 and 7 press the seal member 5, the clamps 6 and 7 are fixed to perform compression of the seal member 5 (compression in the horizontal direction in FIG. 1A). The clamps 8 and 9 are rotatably provided at the ends of the clamps 6 and 7, respectively. Then, in a state where the clamps 6 and 7 are compressing the sealing material 5, the clamps 8 and 9 are rotated to perform compression of the sealing material 5 (compression in the vertical direction in FIG. 1A).
　触媒供給部１０は、台４の設置枠３が設けられた面と反対側の面に設けられる。触媒供給部１０は、台４に形成された設置枠３の枠内と連通する穴に接続され、台４に形成された穴及び設置枠３の枠内を介して触媒担体２のチャンネルにスラリを供給する。すなわち、台４に形成された穴及び設置枠３の枠内がスラリの供給路（または、排出路）となる。なお、触媒担体２のチャンネルへのスラリの供給方法は、触媒供給部１０からスラリを注入する方法、触媒供給部１０でスラリを吸引（または自然流下）する方法のいずれであってもよい。さらに、スラリの注入は、ポンプあるいはシリンダとシリンダヘッドによる注入等、いかなる方法でもかまわない。 The catalyst supply unit 10 is provided on the surface opposite to the surface on which the installation frame 3 of the base 4 is provided. The catalyst supply unit 10 is connected to a hole communicating with the inside of the frame of the installation frame 3 formed on the base 4, and the slurry in the channel of the catalyst carrier 2 via the hole formed on the base 4 and the inside of the frame of the installation frame 3 Supply. That is, the hole formed in the stand 4 and the inside of the frame of the installation frame 3 become a slurry supply path (or discharge path). The slurry may be supplied to the channels of the catalyst carrier 2 either by injecting the slurry from the catalyst supply unit 10 or by suction (or natural flow) of the slurry by the catalyst supply unit 10. Furthermore, the slurry may be injected by any method such as injection by a pump or a cylinder and a cylinder head.
　本発明の第１実施形態に係る触媒固定装置１により触媒担体２のチャンネルにスラリを供給する工程を具体的に説明する。 The process of supplying slurry to the channel of the catalyst carrier 2 by the catalyst fixing device 1 according to the first embodiment of the present invention will be specifically described.
　まず、設置枠３に厚さ１０ｍｍのシール材５を配置し、設置枠３に触媒担体２（例えば、１５０ｍｍ角のハニカム担体）を設置した。そして、クランプ６～９で、シール材５を触媒担体２方向に圧縮した。このようにシール材５を圧縮することで、シール材５の厚さは、２～３ｍｍとなった。つまり、クランプ６～９でシール材５を十分に圧縮（圧縮率は、７０％以上、より好ましくは８０％以上）することで、シール材５内部の気泡が潰れて水密体となり、触媒担体２の外形に沿って密閉することができた。このようにシール材５を圧縮することで、シール材５が、触媒担体２とクランプ６～９間のシール及び固定維持体として機能することとなる。 First, the seal member 5 having a thickness of 10 mm was disposed on the installation frame 3, and the catalyst carrier 2 (for example, a honeycomb carrier of 150 mm square) was installed on the installation frame 3. Then, the seal material 5 was compressed in the direction of the catalyst carrier 2 by the clamps 6 to 9. By compressing the sealing material 5 in this manner, the thickness of the sealing material 5 became 2 to 3 mm. That is, by sufficiently compressing the sealing material 5 (the compression ratio is 70% or more, more preferably 80% or more) by the clamps 6 to 9, the air bubbles inside the sealing material 5 are crushed and become a watertight body. It was possible to seal along the outline of. By compressing the sealing material 5 in this manner, the sealing material 5 functions as a seal and a fixing and maintaining body between the catalyst carrier 2 and the clamps 6 to 9.
　設置枠３に触媒担体２を固定した後、触媒供給部１０から触媒担体２のチャンネル内にスラリを注入（または、吸引）した。なお、触媒担体２の上部には、スラリが溢れないように、触媒担体２の上部外周を囲むテープやキャップを設けた。 After the catalyst carrier 2 was fixed to the installation frame 3, the slurry was injected (or sucked) from the catalyst supply unit 10 into the channel of the catalyst carrier 2. In addition, the upper part of the catalyst carrier 2 was provided with a tape or a cap surrounding the upper periphery of the catalyst carrier 2 so that the slurry would not overflow.
　スラリを触媒担体２のチャンネル内に導入した後、クランプ６～９を緩め、触媒担体２を設置枠３から取り外した。 After the slurry was introduced into the channels of the catalyst support 2, the clamps 6 to 9 were loosened and the catalyst support 2 was removed from the installation frame 3.
　なお、触媒担体２に被覆されたスラリの液体成分は、乾燥によって触媒担体２から除去され、触媒成分が触媒担体２のチャンネル内に残ることとなる。 The liquid component of the slurry coated on the catalyst carrier 2 is removed from the catalyst carrier 2 by drying, and the catalyst component remains in the channel of the catalyst carrier 2.
　以上のような本発明の第１実施形態に係る触媒固定装置１及び触媒固定方法によれば、シール材５により触媒担体２の端部がシール及び固定されるので、触媒担体２と設置枠３の接続部からのスラリ漏出が抑制される。その結果、触媒担体２のチャンネル内のみへのスラリ供給（担持）が可能となる。 According to the catalyst fixing device 1 and the catalyst fixing method according to the first embodiment of the present invention as described above, since the end portion of the catalyst carrier 2 is sealed and fixed by the sealing material 5, the catalyst carrier 2 and the installation frame 3 Slurry leakage from the connection of As a result, slurry can be supplied (supported) only in the channel of the catalyst support 2.
　つまり、従来技術に係る触媒担体のシール構造では、丸型や楕円形状等の角部を有さない形状の触媒担体に対してシールが可能であり、四角柱や三角柱といった角部を有する触媒担体の角部を強固に密閉することが困難であり、スラリの供給圧力によっては角部からスラリが漏出するおそれがあった。 That is, in the seal structure of the catalyst carrier according to the prior art, it is possible to seal against a catalyst carrier having a shape having no corner such as round or oval, and a catalyst carrier having a corner such as square pole or triangle pole It is difficult to tightly seal the corner of the blade, and depending on the supply pressure of the slurry, the slurry may leak from the corner.
　これに対して、本発明の第１実施形態に係る触媒固定装置１では、シール材５により触媒担体２と設置枠３との接続部の密閉が維持されるので、例えば、多角柱形状の触媒担体２の角部における密閉を維持し、触媒担体２のチャンネル内に導入されるスラリ量の定量性を確保することができる。 On the other hand, in the catalyst fixing device 1 according to the first embodiment of the present invention, sealing of the connection portion between the catalyst carrier 2 and the installation frame 3 is maintained by the sealing material 5. Sealing of the corners of the carrier 2 can be maintained to ensure quantitativeness of the amount of slurry introduced into the channels of the catalyst carrier 2.
　特に、触媒担体２の角部に沿うようにクランプ６とクランプ８とを設け、触媒担体２とクランプ６との間（及び触媒担体２とクランプ８との間）に７０％以上圧縮可能なシール材５を設けることで、触媒担体２の角部におけるスラリの漏出を抑制することができる。同様に、クランプ６とクランプ９（その他、クランプ７とクランプ８，９）を触媒担体２の角部に沿うように設けることで、触媒担体２の角部におけるスラリの漏出を抑制することができる。 In particular, clamp 6 and clamp 8 are provided along the corner of catalyst support 2 and a seal that can be compressed by 70% or more between catalyst support 2 and clamp 6 (and between catalyst support 2 and clamp 8) By providing the material 5, it is possible to suppress the leakage of the slurry at the corner of the catalyst support 2. Similarly, by providing the clamp 6 and the clamp 9 (others, the clamp 7 and the clamps 8 and 9) along the corner of the catalyst carrier 2, the slurry leakage at the corner of the catalyst carrier 2 can be suppressed. .
　また、シール材５をクランプ６～９で圧縮することで、触媒担体２の固定及び密閉ができるので、設置枠３への触媒担体２の固定が容易であり、触媒担体２のチャンネルにスラリを被覆する作業が容易になる。また、触媒担体２と設置枠３との間を密閉することで、触媒担体２へのスラリ導入が容易となり、特に、高粘度のスラリを触媒担体２に導入する際に、作業効率が向上する。 In addition, since the catalyst carrier 2 can be fixed and sealed by compressing the sealing material 5 with the clamps 6 to 9, the catalyst carrier 2 can be easily fixed to the installation frame 3, and the slurry in the channels of the catalyst carrier 2 The covering operation becomes easy. In addition, by sealing between the catalyst carrier 2 and the installation frame 3, slurry introduction to the catalyst carrier 2 becomes easy, and in particular, when introducing a high viscosity slurry into the catalyst carrier 2, the working efficiency is improved. .
　［第２実施形態］
　本発明の第２実施形態に係る触媒固定装置は、本発明の第１実施形態に係る触媒固定装置１において、各クランプ６～９を押圧するシリンダを設けたものである。よって、第１実施形態に係る触媒固定装置１と同様の構成については同じ符号を付し、異なる箇所について詳細に説明する。 Second Embodiment
The catalyst fixing device according to the second embodiment of the present invention is provided with cylinders for pressing the clamps 6 to 9 in the catalyst fixing device 1 according to the first embodiment of the present invention. Therefore, about the structure similar to the catalyst fixing device 1 which concerns on 1st Embodiment, the same code | symbol is attached | subjected and a different location is demonstrated in detail.
　図２に示すように、本発明の第２実施形態に係る触媒固定装置１１は、触媒担体２が接続される設置枠３を有する台４と、触媒担体２と設置枠３との接続部を囲繞するシール材５と、シール材５を触媒担体２方向に圧縮するクランプ６～９、及びクランプ６～９を押圧するシリンダ１２～１５（例えば、圧接手段に相当）と、を有する。なお、図示されていないが、台４の設置枠３が設けられた面と反対側の面には、触媒成分を含む液体を触媒担体２のチャンネルに導入する触媒供給部１０が設けられる。 As shown in FIG. 2, the catalyst fixing device 11 according to the second embodiment of the present invention includes a base 4 having an installation frame 3 to which the catalyst carrier 2 is connected, a connecting portion between the catalyst carrier 2 and the installation frame 3. It has a sealing material 5 to be enclosed, clamps 6-9 for compressing the sealing material 5 in the direction of the catalyst carrier 2, and cylinders 12-15 (for example, corresponding to pressure contact means) for pressing the clamps 6-9. Although not shown, a catalyst supply unit 10 for introducing a liquid containing a catalyst component into the channel of the catalyst carrier 2 is provided on the surface opposite to the surface on which the installation frame 3 of the stand 4 is provided.
　シリンダ１２～１５は、各クランプ６～９に対応して設けられ、クランプ６～９を触媒担体２（及び設置枠３）方向に押圧する。 The cylinders 12 to 15 are provided corresponding to the respective clamps 6 to 9 and press the clamps 6 to 9 in the direction of the catalyst carrier 2 (and the installation frame 3).
　本発明の第２実施形態に係る触媒固定装置１１により触媒担体２のチャンネルにスラリを供給する工程を具体的に説明する。 The process of supplying slurry to the channel of the catalyst carrier 2 by the catalyst fixing device 11 according to the second embodiment of the present invention will be specifically described.
　まず、設置枠３に厚さ３０ｍｍのシール材５を配置し、設置枠３に触媒担体２を設置した。そして、クランプ６～９で、シール材５を触媒担体２方向に圧縮し、さらにクランプ６～９をシリンダ１２～１５で押圧した。このようにシール材５を圧縮することで、シール材５の厚さは、６～９ｍｍとなった。つまり、クランプ６～９（及びシリンダ１２～１５）でシール材５を十分に圧縮（圧縮率は、７０％以上、より好ましくは８０％以上）することで、シール材５内部の気泡が潰れて水密体となり、触媒担体２の外形に沿って密閉することができた。このようにシール材５を圧縮することで、シール材５が触媒担体２とクランプ６～９間のシール及び固定維持体として機能することとなる。 First, the seal member 5 having a thickness of 30 mm was disposed on the installation frame 3, and the catalyst carrier 2 was installed on the installation frame 3. Then, the seal material 5 was compressed in the direction of the catalyst carrier 2 by the clamps 6-9, and the clamps 6-9 were pressed by the cylinders 12-15. By compressing the sealing material 5 in this manner, the thickness of the sealing material 5 became 6 to 9 mm. That is, by sufficiently compressing the sealing material 5 (the compression ratio is 70% or more, more preferably 80% or more) with the clamps 6 to 9 (and the cylinders 12 to 15), the air bubbles inside the sealing material 5 are crushed. It became a watertight body and could be sealed along the outer shape of the catalyst carrier 2. By compressing the sealing material 5 in this manner, the sealing material 5 functions as a seal and a fixing and maintaining body between the catalyst carrier 2 and the clamps 6 to 9.
　設置枠３に触媒担体２を固定した後、触媒供給部１０から触媒担体２のチャンネル内にスラリを注入（または、吸引）した。なお、触媒担体２の上部には、スラリが溢れないように、触媒担体２の上部外周を囲むテープやキャップを設けた。 After the catalyst carrier 2 was fixed to the installation frame 3, the slurry was injected (or sucked) from the catalyst supply unit 10 into the channel of the catalyst carrier 2. In addition, the upper part of the catalyst carrier 2 was provided with a tape or a cap surrounding the upper periphery of the catalyst carrier 2 so that the slurry would not overflow.
　スラリを触媒担体２のチャンネル内に導入した後、シリンダ１２～１５（及びクランプ６～９）を緩め、触媒担体２を設置枠３から取り外した。 After the slurry was introduced into the channel of the catalyst carrier 2, the cylinders 12 to 15 (and the clamps 6 to 9) were loosened, and the catalyst carrier 2 was removed from the installation frame 3.
　以上のような本発明の第２実施形態に係る触媒固定装置１１によれば、第１実施形態に係る触媒固定装置１と同様に、触媒担体２と設置枠３の接続部からのスラリ漏出が抑制される。その結果、触媒担体２のチャンネル内のみへのスラリ供給（担持）が可能となり、チャンネル内に導入されるスラリ量の定量性を確保することができる。 According to the catalyst fixing device 11 according to the second embodiment of the present invention, as in the catalyst fixing device 1 according to the first embodiment, slurry leakage from the connection between the catalyst carrier 2 and the installation frame 3 occurs. Be suppressed. As a result, the slurry can be supplied (supported) only in the channel of the catalyst carrier 2, and the quantitativeness of the amount of slurry introduced into the channel can be secured.
　特に、シリンダ１２～１５を設けることで、シール材５の圧縮圧力が大きくなるので、触媒担体２と設置枠３とのシール及び固定がより確実になる。また、シール材５の厚さを厚くすることができるので、触媒担体２と設置枠３とのシールをより確実にすることができる。 In particular, by providing the cylinders 12 to 15, the compression pressure of the sealing material 5 is increased, so that sealing and fixing of the catalyst carrier 2 and the installation frame 3 become more reliable. Moreover, since the thickness of the sealing material 5 can be increased, the seal between the catalyst carrier 2 and the installation frame 3 can be made more reliable.
　なお、実施形態の説明では、本発明の好ましい態様を示して説明したが、本発明の触媒固定装置及び触媒固定方法は、実施形態に限定されるものではなく、発明の特徴を損なわない範囲において適宜設計変更が可能であり、設計変更された形態も本発明の技術範囲に属する。 Although the preferred embodiment of the present invention has been shown and described in the description of the embodiment, the catalyst fixing device and the catalyst fixing method of the present invention are not limited to the embodiment, and insofar as the features of the invention are not impaired. Design changes can be made as appropriate, and modified forms are also within the technical scope of the present invention.
　例えば、本発明のシール材（シール構造）は、触媒担体の下端部だけでなく、上端部に適用する形態とすることもできる。さらに、本発明のシール材（シール構造）を、触媒担体の両端に適用することで、触媒担体の各端部におけるスラリ漏出を防止することができる。 For example, the sealing material (seal structure) of the present invention can be applied not only to the lower end portion of the catalyst carrier but also to the upper end portion. Furthermore, the seal material (seal structure) of the present invention can be applied to both ends of the catalyst support to prevent slurry leakage at each end of the catalyst support.
　また、シール材は、一体のものが好ましいが、分割して配置されたシール材を用いることもできる。 Further, although the sealing material is preferably integral, it is also possible to use a sealing material which is divided and disposed.
　また、クランプ及びシリンダの形状及び数は実施形態に限定されるものではなく、触媒担体の断面（チャンネルの延伸方向と垂直方向の断面）形状に応じて適宜変更される。例えば、触媒担体の断面が円や楕円の場合は、クランプの形状も触媒担体の曲面に沿うように形成されることとなる。 Further, the shapes and the number of clamps and cylinders are not limited to the embodiment, and may be appropriately changed according to the shape of the cross section of the catalyst carrier (the cross section in the direction perpendicular to the channel extending direction). For example, when the cross section of the catalyst support is a circle or an ellipse, the shape of the clamp is also formed along the curved surface of the catalyst support.

Claims (3)

  1. 　複数のチャンネルが形成された触媒担体が接続され、当該触媒担体のチャンネル内に触媒成分を含有する液体を導入する担体接続部と、
    　前記担体接続部と当該担体接続部に接続された触媒担体との接続部に設けられるシール材と、
    　前記シール材を前記触媒担体方向に圧接する圧接手段と、
    を有し、
    　前記シール材は、発泡材料である、触媒固定装置。     A carrier connection portion connected to a catalyst carrier in which a plurality of channels are formed, and introducing a liquid containing a catalyst component into the channel of the catalyst carrier;
    A sealing material provided on a connection portion between the carrier connection portion and a catalyst carrier connected to the carrier connection portion;
    Pressing means for pressing the sealing material in the direction of the catalyst carrier;
    Have
    The catalyst fixing device, wherein the sealing material is a foam material.
  2. 　前記シール材は、前記圧接手段により７０％以上圧縮可能である、請求項１に記載の触媒固定装置。 The catalyst fixing device according to claim 1, wherein the sealing material is compressible by 70% or more by the pressure contact means.
  3. 　複数のチャンネルを有する触媒担体と、当該触媒担体のチャンネル内に触媒成分を含有する液体を導入する担体接続部と、を接続する工程と、
    　前記担体接続部と前記触媒担体との接続部に設けられたシール材を、前記触媒担体方向に圧接する工程と、
    　前記触媒成分を含有する液体を前記触媒担体のチャンネル内に導入する工程と、を含む、触媒固定方法。     Connecting a catalyst carrier having a plurality of channels and a carrier connection portion for introducing a liquid containing a catalyst component into the channels of the catalyst carrier;
    Pressing a seal material provided at a connection portion between the carrier connection portion and the catalyst support toward the catalyst support;
    Introducing the liquid containing the catalyst component into the channel of the catalyst support.
PCT/JP2016/075610 2015-09-04 2016-09-01 Catalyst fixing device and catalyst fixing method WO2017038923A1 (en)

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