JP2009291695A - Intermediate of film-shaped catalytic structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an intermediate of a film-shaped catalytic structure, the production operation of which is facilitated. <P>SOLUTION: The intermediate of the film-shaped catalytic structure is obtained by housing a film-shaped catalyst assemble in a cylindrical casing. The film-shaped catalyst assemble 10 is constituted so that a film-shaped catalyst 11 and a corrugated film-shaped catalyst 12 are layered alternately on each other in desired layers and all or a part of the contact portions 13 of the film-shaped catalyst 11 with the convex parts of the corrugated film-shaped catalyst 12 are stuck to one another temporarily. Since the film-shaped catalyst assemble 10 can be handled as one molding, the operation is facilitated when the film-shaped catalyst assemble 10 is housed in the cylindrical casing to obtain the intermediate. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an intermediate of a film-like catalyst structure that can be used for the production of a film-like catalyst structure suitable as a catalyst for gas-liquid reaction, etc., a method for producing the intermediate, and a film-like catalyst using the intermediate The present invention relates to a method for manufacturing a structure.

  A film-like catalyst in which a catalyst is supported on a film-like substrate is known (Patent Documents 1 to 3), and these film-like catalysts are corrugated for the purpose of increasing the surface area or forming a raw material flow path. Or may be used after being formed into a honeycomb shape.

  Patent Document 4 describes a metal honeycomb body for purifying automobile exhaust gas, in which a wound type honeycomb block body made of a flat strip and a corrugated strip is housed in a metal casing. .

Patent Document 5 describes a method of manufacturing a large-diameter metal catalyst carrier by winding a flat plate material and a corrugated plate material around a core material while applying a predetermined tension.
WO2005 / 035122 JP-A-8-141393 JP 2000-189814 A Japanese Patent Laid-Open No. 6-205989 Japanese Patent Laid-Open No. 8-80440

  In the inventions described in Patent Documents 4 and 5, since the flat plate and the corrugated plate are displaced at the time of manufacture, there is a problem that workability is poor or the intended product cannot be obtained.

  The present invention can solve the above-mentioned problems, the film-like catalyst assembly is accommodated in a cylindrical case, and can be used for the production of a film-like catalyst structure. It is an object to provide a catalyst structure.

  Another object of the present invention is to provide a method for producing an intermediate of the above-described film-like catalyst structure and a method for producing a film-like catalyst structure obtained using the above-mentioned intermediate.

The present invention provides the following inventions as means for solving the problems.
(1) An intermediate of a film-like catalyst structure in which a film-like catalyst assembly is accommodated in a cylindrical case,
In the film-shaped catalyst assembly, a desired number of sheet-shaped film catalysts and corrugated film-shaped catalysts are alternately stacked, and the sheet-shaped film catalyst and the convex portions of the corrugated film-shaped catalyst are in contact with each other. An intermediate of the film-like catalyst structure, wherein all or part of the part is temporarily fixed.
(2) The intermediate body of the film-like catalyst structure according to claim 1, wherein one of the film-like catalyst aggregates is regarded as one unit, and one or a plurality of units are accommodated in a cylindrical case.
(3) The aggregate is temporarily set so that a cross-sectional shape perpendicular to the axis of the cylindrical case is the same as the cross-sectional shape of the cylindrical case or a shape obtained by dividing the cross-sectional shape into a plurality of parts. The intermediate body of the film-form catalyst structure of Claim 1 or 2 which was stopped.
(4) The intermediate body of the film-like catalyst structure according to claim 1 or 2, wherein the aggregate is temporarily fixed so that a cross-sectional shape perpendicular to the axis of the cylindrical case becomes a fan shape.
(5) The intermediate body of the film-like catalyst structure according to claim 1 or 2, wherein the aggregate is temporarily fixed so that a cross-sectional shape perpendicular to the axis of the cylindrical case is circular.
(6) The film according to claim 1 or 2, wherein the aggregate is obtained by alternately laminating and corrugating the corrugated film-shaped catalyst and the sheet-shaped film-shaped catalyst in a flat plate shape. Intermediate of catalyst structure.
(7) A method for producing an intermediate of the film-like catalyst structure according to any one of claims 1 to 6,
A step of forming an aggregate by stacking a desired number after temporarily fixing the contact portion between the sheet-like film-like catalyst and the convex portion of the wave-shaped film-like catalyst,
One of the aggregates as a unit, and the step of accommodating one or more units in a cylindrical case,
The manufacturing method of the intermediate body of the film-form catalyst structure which has this.
(8) A method for producing a film-like catalyst structure using the film-like catalyst structure intermediate according to any one of claims 1 to 6, wherein the intermediate of the film-like catalyst structure is temporarily fixed. The manufacturing method of the film-form catalyst structure which has the process to remove.
(9) A film-like catalyst structure from which the temporary fixing of the intermediate body of the film-like catalyst structure according to any one of claims 1 to 6 is removed, wherein the film-like catalyst assembly is the cylindrical shape. A film-like catalyst structure housed so as to press the inner wall surface of the case in the outward direction.

  The intermediate body of the film-like catalyst structure of the present invention is an assembly in which a sheet-like film catalyst and a wave-like film-like catalyst are alternately laminated in a cylindrical case, and these are temporarily fixed at a contact portion. Contained.

  The contact portion between the sheet-like film-like catalyst and the convex portion of the wave-like film-like catalyst is temporarily or partially fixed. For this reason, when the corrugated film-shaped catalyst and the sheet-shaped film catalysts on both sides in contact with the corrugated film catalyst are both temporarily fixed, the assembly can be handled as a single molded body, so that it can be accommodated in the cylindrical case. Workability is very good.

  Also, when performing the winding operation when making the intermediate body into a substantially cylindrical shape that enters the cylindrical case, a set of corrugated film catalyst and sheet film catalyst are temporarily fixed before winding. If it is, the tension can be easily adjusted. In particular, since a wavy film-like catalyst is an operation with low tension, turbulence is likely to occur, and the turbulence can be prevented by performing temporary fixing as in the present invention.

<Film catalyst used in intermediate of film catalyst structure and production method thereof>
As the film-like catalyst used in the present invention, a known catalyst described in Patent Document 1 or the like can be used.

  A sheet-like film catalyst is obtained by applying a coating composition containing a catalyst powder on a support (for example, a long support made of copper foil, stainless steel foil, aluminum foil, etc.) and forming a catalyst intermediate. Can be obtained by drying and curing. The coating composition is a powder form in which a catalyst active material (Ag, Au, Cu, Ni, Fe, Al, etc.) is supported on a porous material (activated carbon, alumina, silica, zeolite, titania, silica-alumina, diatomaceous earth, etc.) In addition to catalysts, binders and solvents, milling etc. as necessary dispersion aids (surfactants, coupling agents, etc.), lubricants (inorganic particles, fibrous substances, etc.), porosity aids (high-boiling solvents), etc. It is made into a paint.

  The corrugated film catalyst can be obtained by processing the sheet catalyst into a corrugated shape. The method of processing into a wave shape is not particularly limited, and in addition to the methods described in Patent Documents 2 and 3, it can also be processed by the following method shown in FIG.

  In FIG. 5, the protective material 111 and the film-like catalyst 100 are sent out from the feed rolls 103, 102, 101, respectively, the direction is changed by the support roll 104, and the protective gear and the film-like catalyst are overlapped with each other in the processing gear. By passing between 115 and 116, a long film catalyst 100 ′ processed into a wave shape is obtained. The long film catalyst 100 ′ processed into a wave shape is extruded in the direction of the arrow by the extrusion action of the two gears 115, 116, and the two protective materials 111 are respectively wound into the winding rolls 102 ′, Rolled up at 103 '.

  The long film catalyst 100 ′ processed into a wave shape in the previous step can be cut into a desired shape and size as necessary.

<Intermediate of film-like catalyst structure>
First, the assembly used for the intermediate body of the film-like catalyst structure will be described with reference to FIG. FIG. 1 is a partial cross-sectional view of the assembly.

  In the assembly 10, a desired number of sheet-like film-like catalysts 11 and wave-like film-like catalysts 12 are alternately laminated. The number of stacked layers is appropriately adjusted according to the target intermediate. As a structure of a film-form catalyst, what coated the catalyst layer coating film of 5-100 micrometers in thickness, respectively on both surfaces of 40-micrometer-thick copper foil can be used, for example. As the wave shape of the wave-shaped film catalyst, for example, one having a pitch of 1 to 30 mm, a peak height of 0.2 to 30 mm, and a peak of the peak part having a radius of 0.3 mm or more can be used.

  In the aggregate 10, all or a part of the contact portion 13 between the sheet-like film-like catalyst 11 and the convex portion (or the concave-convex portion) of the corrugated film-like catalyst surface 12 is temporarily fixed. When the wave-shaped film-like catalyst and the sheet-like film-like catalysts on both sides in contact with the wave-shaped film catalyst are temporarily fixed together, the whole is integrated (1 unit). Since the assembly 10 with the contact portion 13 temporarily fixed as described above is in an integrated state, the workability when accommodating the assembly 10 in the cylindrical case, that is, for each unit, is improved. Be improved.

  Any temporary fixing means may be used as long as the contact portion 13 can be temporarily fixed and the temporary fixing can be removed later. A wax having a low boiling point or a low melting point, a thermoplastic adhesive, or the like can be used.

  It is not necessary to temporarily fix all the contact portions 13. For example, the temporary fix portions may be intermittent at the corrugated convex portion, or every other contact portion 13 may be temporarily fixed.

The form of the aggregate 10 is not particularly limited, and there are cross-sectional shapes perpendicular to the axis of the cylindrical cases (15a to 15d) shown in FIG. 2 such as a circle, an ellipse, a fan, and a polygon. Moreover, as a lamination | stacking form, what wound the wave-like film-form catalyst and the sheet-form film-form catalyst alternately may be sufficient, and what laminated | stacked alternately in the shape of a flat plate of every leaf may be used. Here, the pressure between the stacked sheets is measured by inserting a pressure-sensitive sheet or the like between the assembly 10 and the inner surface of the container containing the assembly 10 to measure the pressure distribution in the outer direction. Next, the intermediate body of the film-like catalyst structure using the aggregates 10a to 10d having different forms will be described with reference to FIGS. 2A to 2D are cross-sectional views perpendicular to the axis of the cylindrical case of the intermediate 20 (20a to 20d) of the film-like catalyst structure. The temporary fixing portion is not shown.

  The intermediate body 20 (20a to 20d) is obtained by accommodating a desired number of aggregates 10 (10a to 10d) in a cylindrical case 15 (15a to 15d). The cross-sectional shape perpendicular to the axis of the cylindrical case 15 (15a to 15d) is not particularly limited, and can be a circle, an ellipse, a polygon, or the like, and a portion of the circle or ellipse is not a curved surface but a plane. It may be a thing, and a part of polygon may be not a plane but a curved surface.

  The intermediate body 20a shown in FIG. 2 (A) has a cylindrical case 15a in which the four aggregates 10a having a fan-shaped cross-section are circular, that is, the cross-section of the cylindrical case 15a. It is accommodated so as to match the shape. In FIG. 2A, the cylindrical case 15a has a structure in which the inside is partitioned in a cross shape. However, the aggregates 10a may be partitioned by a partition member in this way, Instead, each assembly 10a may be accommodated in contact. In the intermediate body 20a, one aggregate 10a becomes one unit, and a total of 4 units are accommodated in FIG.

  The intermediate body 20b shown in FIG. 2B has a cylindrical case 15b in which a large number of aggregates 10b having a circular cross-sectional shape are circular, that is, the cross-section of the cylindrical case 15b. It is accommodated so as to match the shape. In the intermediate body 20b, one aggregate 10b is one unit, and in FIG. 2B, a large number of units are accommodated.

  In the intermediate body 20c shown in FIG. 2C, a large number of flat plate-like assemblies 10c are formed in a circular shape in the cylindrical case 15c, that is, match the cross-sectional shape of the cylindrical case 15c. Is housed in this way. At this time, the aggregate 10c may be one unit as a whole or a combination of a plurality of units having different lengths (lengths appearing on the plane of FIG. 2C).

  In the intermediate body 20d shown in FIG. 2D, a plurality of partition plates 16 are arranged in a cylindrical case 15d, and a flat plate-like shape is formed in a space surrounded by the cylindrical case 15d and the plurality of partition plates 16. A large number of aggregates 10d are accommodated. At this time, the aggregate 10d may be configured such that the entire unit accommodated in each of the spaces is a single unit, or a plurality of units may be accommodated in the spaces.

<Method for producing intermediate of film-like catalyst structure>
(1) One Embodiment of Intermediate Production Method One embodiment of the intermediate production method of the present invention will be described with reference to FIGS.

  In the step shown in FIG. 3A, the contact portion 13 between the sheet-like film-shaped catalyst 11 and the convex portion of the wave-shaped film-like catalyst 12 is temporarily fixed with an adhesive. This is a step of winding around 30 and finally obtaining a cylindrical aggregate 10.

  The core material 30 used in FIG. 3A has a circular cross section, but the cross section may be triangular, quadrangular or more polygonal, elliptical, or fan-shaped. When using these core materials, it is preferable to use those having rounded corners.

  The tension at the time of winding around the rod-shaped core material 30 is appropriately adjusted so as to be the target intermediate 20. For example, the aggregate 10 (preferably a cylinder preferably having a size that can obtain a preset effective area (substantially the entire surface area of the aggregate 10) and can be accommodated in the cylindrical case 15 used in the next step. Tension is applied so that an aggregate 10) having an outer diameter slightly smaller than the inner diameter of the case 15 is obtained.

  Here, when winding a wave-shaped film catalyst without fixing it to a sheet-shaped film catalyst, if it is attempted to wind it while maintaining the wave shape, it becomes a work with a low tension, and therefore turbulence tends to occur. Therefore, by performing temporary fixing as in the present invention, it becomes possible to apply a desired tension, to prevent winding disturbance, and to wind up while deforming the corrugated film catalyst. The aggregate 10 wound with tension applied in this way is in a state in which the tension is released in the case, so that the wavy film-like catalyst tries to restore its shape and the outer diameter of the aggregate 10 Swells and can be pressed toward the outside of the cylindrical case. As a result, stress relaxation after the case is stored and stress distribution in the case is made uniform.

  For example, as shown in FIG. 3A, the temporary fixing is performed by applying an adhesive to the convex portions 12a of the corrugated film-like catalyst 12 by the adhesive application device 40 at a desired stage before being wound around the core material 30. A method of applying can be applied.

  The step shown in FIG. 3B is a step of housing the assembly 10 together with the core member 30 in the cylindrical case 15 placed on the work table 50.

  In this step, since the sheet-like film catalyst 11 and the wave-shaped film catalyst 12 constituting the aggregate 10 are temporarily fixed, the entire aggregate 10 is in the form of one molded body. For this reason, the assembly 10 is easy to handle and the accommodating operation in the cylindrical case 15 is easy. Further, when the aggregate 10 is accommodated in a state where the aggregate 10 is compressed in the center direction without releasing the tension, the outer surface of the aggregate 10 expands in the outward direction when the tension is released thereafter. The case 15 is in close contact with the inner surface. For this reason, the aggregate 10 does not rattle in the cylindrical case 15 when the intermediate body 20 is stored or transported. In addition, as a means for preventing the assembly 10 from spreading, a fastening band such as plastic or nonwoven fabric can be used.

(2) Another Embodiment of Intermediate Production Method Another embodiment of the intermediate production method of the present invention will be described with reference to FIGS. An intermediate body 20e shown in FIG. 4B includes a cylindrical aggregate 10e having a maximum diameter in a cylindrical case 15e, a cylindrical aggregate 10e ′ having an intermediate diameter accommodated inside the cylindrical aggregate 10e, and a cylinder. The cylindrical aggregate 10e ″ having the minimum diameter accommodated inside the cylindrical aggregate 10e ′.

  In the step shown in FIG. 3A, the cylindrical aggregates 10e, 10e ′, and 10e ″ use core materials 30 having different outer diameters, and 10e and 10e ′ are each of the cylindrical aggregates on the inner side. 4 (A), a cylindrical aggregate 10e having a maximum diameter is first placed in a cylindrical case 15e, as shown in FIG. Next, an intermediate body 20e shown in FIG. 4B can be obtained by inserting a cylindrical aggregate 10e ′ having an intermediate diameter and finally inserting a cylindrical aggregate 10e ″ having a minimum diameter. Further, a combination of the cylindrical aggregates 10e, 10e ', and 10e "may be collectively accommodated in the cylindrical case 15e.

  Here, when winding a pair of wave-shaped and sheet-shaped film catalysts, when the sheet-shaped film catalyst is wound outside, the sheet-shaped film-shaped catalyst is formed on the outer peripheral surface of the cylindrical aggregate 10e having the maximum diameter. 11 (see FIG. 1) is located, and a corrugated film catalyst 12 (see FIG. 1) is located on the inner peripheral surface. A sheet-like film catalyst 11 is positioned on the outer peripheral surface of the cylindrical aggregate 10e 'having an intermediate diameter, and a wave-shaped film catalyst 12 is positioned on the inner peripheral surface. Further, a sheet-like film catalyst 11 is positioned on the outer peripheral surface of the cylindrical aggregate 10e ″ having the smallest diameter, and a wave-shaped film catalyst 12 is positioned on the inner peripheral surface. When winding up inside, a corrugated film catalyst is located in the outer peripheral surface of each cylindrical aggregate, and a sheet-like film catalyst is located in an inner peripheral surface.

  In the form shown in FIG. 4B, the cylindrical aggregates 10e, 10e ′, 10e ″ all expand outward themselves in a state where the tension is released, so that the inner diameter of the cylindrical case 15e and the maximum diameter are increased. The outer surface of the cylindrical aggregate 10e is in close contact, the inner surface of the core of the cylindrical aggregate 10e with the maximum diameter and the outer surface of the cylindrical aggregate 10e 'with the intermediate diameter are in close contact with each other. The inner surface of the core material of the aggregate 10e ′ and the outer surface of the cylindrical assembly e ″ having the smallest diameter are in close contact with each other. For this reason, the aggregates 10e, 10e ', 10e "do not rattle in the cylindrical case 15e when the intermediate 20e is stored, transported, or used.

<Method for producing film-like catalyst structure>
The film-like catalyst structure of the present invention can be produced through a step of removing the temporary fixing of the intermediate.

  As a temporary fixing removal method, when an adhesive having a low boiling point or a low melting point is used as a temporary fixing means, the adhesive is removed by heating to the boiling point or the melting point of the adhesive or higher, and the adhesive is dissolved. A method of immersing the intermediate in a solvent that can be used, a method of combining the two methods described above, and the like can be applied.

  By this temporary fixing removal step, a film-like catalyst structure having no adhesion portion between layers and a wider catalyst exposed area can be obtained.

<Film catalyst structure>
The film-like catalyst structure is obtained by removing the temporary fixing of the intermediate body, and the film-like catalyst assembly in the cylindrical case is in a state of pressing the inner wall surface of the cylindrical case in the outward direction. is there. The film-like catalyst structure of the present invention has a structure in which a film-like catalyst assembly is accommodated in a cylindrical case having openings at both ends. It has a space leading to the opening.

<Production example of film catalyst>
(Production of powdered catalyst)
A powdered catalyst made of a copper / nickel / ruthenium ternary catalyst active material supported on a synthetic zeolite was prepared as follows.

  Synthetic zeolite (average particle size: 6 μm) is charged into a 1 L flask, and then copper nitrate, nickel nitrate and ruthenium chloride are added so that the molar ratio of each metal atom is Cu: Ni: Ru = 4: 1: 0.01. A solution dissolved in water was added to the flask and heated with stirring. A 10% by mass aqueous sodium carbonate solution was gradually added dropwise at 90 ° C. while controlling the pH at 9-10. After aging for 1 hour, the precipitate was filtered, washed with water, dried at 80 ° C. for 10 hours, and calcined at 600 ° C. for 3 hours to obtain a powdered catalyst. In the obtained powdery catalyst, the proportion of metal oxide was 50% by mass, and the proportion of synthetic zeolite was 50% by mass.

(Manufacture of sheet-like film catalyst)
MIBK as a solvent, phenol resin as a binder (PR-9480 manufactured by Sumitomo Bakelite), and powdered catalyst prepared in Production Example 1 were placed in this order in a 250 ml wide-mouth polyethylene bottle. The blending ratio was such that the nonvolatile content of the phenol resin was 20 parts by weight with respect to 80 parts by weight (65 g) of the powdered catalyst, and the amount of MIBK was such that the solid content of the blend was 60% by weight. Further, glass beads having a diameter of 1 mm (apparent volume of 65 ml) were placed in a wide-mouth polyethylene bottle as a dispersion medium.

  A wide-mouth polyethylene bottle was set on a paint shaker and mixed and dispersed for 30 minutes to obtain a coating composition.

A long copper foil (thickness 40 μm, weighing 310 g / m ² ) was used as a support, and the coating composition was applied to both sides of the copper foil with a comma coater. In the drying furnace attached to the coating machine, treatment was performed at 100 ° C. for 120 seconds to obtain a sheet-like film catalyst.

(Manufacture of corrugated film catalyst)
Using the sheet-like film-like catalyst obtained by the above production method, a corrugated film-like catalyst was produced using the apparatus shown in FIG. The feed rate was 2 m / min.

Example 1
(Production of intermediate of film-like catalyst structure)
Using the sheet-like film catalyst (width 500 mm) obtained in the above production example and a corrugated film catalyst (width 500 mm), the production method shown in FIG. The assembly 10 was obtained. Microcrystalline wax (melting point 60 ° C.) was used as an adhesive for temporary fixing. The obtained assembly 10 was fixed at the periphery using a band.

  Next, as shown in FIG. 3B, the band is removed halfway while the tip of the assembly 10 is put into a cylindrical case having an inner diameter of 910 mm and a height of 550 mm, and then the whole is accommodated and intermediated. Body 20 was obtained.

(Production of film-like catalyst structure)
The intermediate 20 was subjected to curing treatment in air at 130 ° C. for 90 minutes. Thereafter, the intermediate 20 was immersed in a higher alcohol (mainly C ₁₀ H ₂₁ OH) bath heated to 130 ° C., and maintained for 5 hours while stirring the bath by blowing nitrogen. Then, the film-like catalyst structure from which the adhesive for temporary fixing was removed was obtained by pulling up from the bath and drying.

The fragmentary sectional view of the film-form catalyst assembly used for the intermediate body of a film-form catalyst structure. The top view of the intermediate body (or film-form catalyst structure) of a film-form catalyst structure. Explanatory drawing of the manufacturing method of the intermediate body of a film-form catalyst structure. Explanatory drawing of the manufacturing method which is another embodiment of the intermediate body of a film-form catalyst structure. The conceptual diagram for demonstrating the manufacturing method of a waveform film-like catalyst.

Explanation of symbols

10, 10a-10e Aggregates of film-like catalyst structures
15, 15a-15e cylindrical case
20, 20a-20e Intermediate of film-like catalyst structure
30 core material

Claims (9)

An intermediate of a film-like catalyst structure in which a film-like catalyst assembly is accommodated in a cylindrical case,
In the film-shaped catalyst assembly, a desired number of sheet-shaped film catalysts and corrugated film-shaped catalysts are alternately stacked, and the sheet-shaped film catalyst and the convex portions of the corrugated film-shaped catalyst are in contact with each other. An intermediate of the film-like catalyst structure, wherein all or part of the part is temporarily fixed.   The intermediate body of the film-form catalyst structure of Claim 1 by which one or more units are accommodated in the cylindrical case by making one of the said film-form catalyst aggregates into 1 unit.   The aggregate is temporarily fixed so that the cross-sectional shape perpendicular to the axis of the cylindrical case is the same as the cross-sectional shape of the cylindrical case or the same shape as each of the cross-sectional shapes divided into a plurality of parts. The intermediate body of the film-form catalyst structure of Claim 1 or 2 which is what is.   The intermediate body of the film-like catalyst structure according to claim 1 or 2, wherein the aggregate is temporarily fixed so that a cross-sectional shape perpendicular to the axis of the cylindrical case is a fan shape.   The intermediate body of the film-like catalyst structure according to claim 1 or 2, wherein the aggregate is temporarily fixed so that a cross-sectional shape perpendicular to the axis of the cylindrical case is circular.   The film-like catalyst structure according to claim 1 or 2, wherein the aggregate is obtained by alternately laminating and alternately laminating a corrugated film catalyst and a sheet-like film catalyst in a flat plate shape. Intermediates. It is a manufacturing method of the intermediate body of the film-form catalyst structure of any one of Claims 1-6,
A step of forming an aggregate by stacking a desired number after temporarily fixing the contact portion between the sheet-like film-like catalyst and the convex portion of the wave-shaped film-like catalyst,
One of the aggregates as a unit, and the step of accommodating one or more units in a cylindrical case,
The manufacturing method of the intermediate body of the film-form catalyst structure which has this.   It is a manufacturing method of the film-form catalyst structure using the intermediate body of the film-form catalyst structure of any one of Claims 1-6, Comprising: The process of removing the temporary fix | stop of the intermediate body of a film-form catalyst structure The manufacturing method of the film-form catalyst structure which has this.   It is the film-like catalyst structure from which the temporary fix | stop of the intermediate body of the film-like catalyst structure of any one of Claims 1-6 was removed, Comprising: The said film-like catalyst assembly is the inside of the said cylindrical case. A film-like catalyst structure accommodated so as to press the wall surface outward.

Images