Catalyst-adhered body production method and catalyst adhesion device

A catalyst carrier and catalyst technology, which can be used in catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve problems such as the inability to fully reduce manufacturing costs, and achieve the effect of good manufacturing efficiency.

Inactive Publication Date: 2019-10-08
WASEDA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, even the catalytic CVD method cannot sufficiently reduce the manufacturing cost

Method used

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  • Catalyst-adhered body production method and catalyst adhesion device
  • Catalyst-adhered body production method and catalyst adhesion device
  • Catalyst-adhered body production method and catalyst adhesion device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0134]

[0135] A catalyst-attached body manufacturing apparatus having a container composed of a quartz tube with an inner diameter of 2.2 cm and having a porous plate (sintered body with a mesh of 0.1 mm) in the lower portion was used. The container was filled with 30 g of alumina beads (volume average particle diameter D50: 0.3 mm) as target particles. Then, 30 mM iron acetate (Fe(CH 3 COO) 2 )·36mM aluminum isopropoxide (Al(OC 3 h 7 ) 3 )·Ethanol solution (the first attachment process). At this time, all the alumina beads in the quartz tube were immersed in the catalyst-catalyst carrier raw material mixed solution.

[0136] Then, nitrogen gas was flowed from the upper pipe connected to the upper part of the quartz tube to remove the residual liquid of the catalyst-catalyst carrier material mixed solution from the quartz tube (the first residual liquid removal process), and the particles in the quartz tube were dried as the adhered particles. alumina beads (the firs...

Embodiment 2

[0142] In addition to changing the catalyst-catalyst support material mixed solution used in the first attachment process and the second attachment process to 30 mM iron acetate (Fe(CH 3 COO) 2 )·24mM aluminum isopropoxide (Al(OC 3 h 7 ) 3 ) and ethanol solution, in the same manner as in Example 1, the production of the catalyst-attached body and the synthesis of CNTs were carried out. Table 1 shows the results. in addition, image 3 An image of the synthesized catalyst carrier is shown.

Embodiment 3

[0144] After carrying out the attachment step using the catalyst carrier raw material solution to the drying step, the raw material decomposition step to the post-decomposition drying step were carried out. After repeating this series of steps for 3 sets, a set of catalyst-catalyst carrier raw material was implemented. Adhesion process of mixed solution to drying process.

[0145] In the attachment step to the drying step using the catalyst carrier raw material solution, instead of the catalyst-catalyst carrier raw material mixed solution, 48 mM aluminum isopropoxide (Al(OC 3 h 7 ) 3 ) ethanol solution as the catalyst carrier raw material solution, and in the raw material decomposition process, use ion-exchanged water to replace the 0.1M ammonia solution, and do not use a heating device in the drying process and the drying process after decomposition. In addition to the above points, implement the same The same operations as the first attachment step to the first drying step...

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Abstract

Provided is a method for producing a catalyst-adhered body, the method comprising: an adhesion step for arranging, in a container having a porous plate, a mixed solution containing target particles, and a catalyst raw material and/or a catalyst carrier raw material, and adhering the catalyst and/or the catalyst carrier to the surface of the target particles to obtain adherence treated particles; an excess solution removal step for removing, from within the container and through the porous plate, at least a portion of excess solution containing excess components not adhered to the adherence treated particles, and forming a filled layer of adherence treated particles on the porous plate; and a drying step for drying the filled layer in the container.

Description

technical field [0001] The invention relates to a method for manufacturing a catalyst attachment body and a catalyst attachment device. Background technique [0002] In recent years, fibrous carbon materials, especially fibrous carbon nanostructures such as carbon nanotubes (hereinafter sometimes abbreviated as "CNT") have attracted attention as materials excellent in electrical conductivity, thermal conductivity, and mechanical properties. CNTs are composed of cylindrical graphene sheets formed using carbon atoms, and their diameters are on the order of nanometers. [0003] Here, fibrous carbon nanostructures such as CNT are generally more expensive than other materials because of high production costs. Therefore, although it has excellent characteristics as described above, its use is limited. In addition, in recent years, a CVD (Chemical Vapor Deposition: Chemical Vapor Deposition) method using a catalyst (hereinafter sometimes referred to as "catalyst CVD method") has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J37/02B01J23/745B01J37/04C01B32/162
CPCB01J23/745C01B32/162B01J21/185B01J23/74B01J37/0236B01J21/02B01J21/06B01J21/10B01J21/18B01J23/75B01J23/755B01J35/10B01J37/0209B01J37/04
Inventor 野田优前田里沙涩谷明庆
Owner WASEDA UNIV
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