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Preparation method of a corrugated structure cermet-based zeolite adsorption material

A cermet-based, adsorption material technology, applied in non-metallic elements, alkali metal compounds, chemical instruments and methods, etc., can solve the problems of low mechanical strength, low desorption efficiency, structural collapse, etc., to overcome performance improvement, desorption The effect of short attachment time and light structure

Active Publication Date: 2021-09-28
南通斐腾新材料科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Most of the current zeolite adsorption carriers use cordierite honeycomb ceramics, but cordierite materials have disadvantages such as high price, high quality, easy damage, and large heat absorption.
At the same time, in terms of installation, there will be gaps in the installation of ceramics, which is difficult to install. Generally, relevant auxiliary materials are needed to fill the gaps during the installation process. Once there are gaps, its adsorption performance will be affected and the purification effect will be reduced.
In addition, ceramic fiber paper is also used as a carrier to make a rotary drum. However, due to the poor thermal conductivity of ceramic fibers, the desorption efficiency is low. In addition, due to the softness of ceramic fibers and low mechanical strength, it is easy to cause structural collapse and blockage. hole problem

Method used

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  • Preparation method of a corrugated structure cermet-based zeolite adsorption material

Examples

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Embodiment 1

[0024] A method for preparing a cermet-based zeolite adsorption material with a corrugated structure, comprising the following steps:

[0025] A1. Degreasing and silane passivation treatment are carried out on the surface of 2 groups of corrugated FeCrAl alloy sheets with a thickness of 10 μm, and 1 group of glass fiber paper is arranged between adjacent FeCrAl alloy sheets to form a sandwich structure, wherein , each set of glass fiber paper includes 1 layer of glass fiber paper;

[0026] A2. Dip-coat the sandwich structure in step A1 in the zeolite slurry as a whole, and blow off the excess slurry, so that the upper and lower surfaces of the FeCrAl alloy sheet are coated with the first zeolite slurry layer with a thickness of 100 μm, and the upper and lower sides of the glass fiber paper The surface is covered with a second zeolite slurry layer with a thickness of 100 μm, then dried at 120-240°C, and finally baked at 240-300°C for 2-6 hours;

[0027] A3. After the baking is...

Embodiment 2

[0029] A method for preparing a cermet-based zeolite adsorption material with a corrugated structure, comprising the following steps:

[0030] B1. Heat-treat the surface of 4 groups of corrugated FeCrAl alloy sheets with a thickness of 100 μm at 800°C for 2 hours, and place 3 groups of glass fiber paper between adjacent FeCrAl alloy sheets to form a sandwich structure, wherein each The set of glass fiber paper includes 3 layers of glass fiber paper;

[0031] B2. Dip-coat the sandwich structure in step B1 in the zeolite slurry as a whole, and blow off the excess slurry, so that the upper and lower surfaces of the FeCrAl alloy sheet are coated with the first zeolite slurry layer with a thickness of 500 μm, and the upper and lower sides of the glass fiber paper The surface is covered with a second zeolite slurry layer with a thickness of 500 μm, and then dried at 120-240°C, and finally baked at 240-300°C for 2-6 hours;

[0032] B3. After the baking is completed, the sandwich str...

Embodiment 3

[0038] A method for preparing a cermet-based zeolite adsorption material with a corrugated structure, comprising the following steps:

[0039] C1. Perform degreasing and silane passivation treatment on the surface of two groups of corrugated aluminum alloy sheets with a thickness of 10 μm, and place one group of glass fiber paper between adjacent aluminum alloy sheets to form a sandwich structure, wherein each The set of glass fiber paper includes 1 layer of glass fiber paper;

[0040] C2. Dip-coat the sandwich structure in step C1 in the zeolite slurry as a whole, and blow off the excess slurry, so that the upper and lower surfaces of the aluminum alloy sheet are coated with the first zeolite slurry layer with a thickness of 1000 μm, and the upper and lower surfaces of the glass fiber paper Coated with a second zeolite slurry layer with a thickness of 1000 μm, then dried at 120-240°C, and finally baked at 240-300°C for 2-6 hours;

[0041] C3. After the baking is completed, t...

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Abstract

A method for preparing a cermet-based zeolite adsorption material with a corrugated structure of the present invention comprises the following steps: performing pretreatment on the surfaces of at least two groups of metal sheets, placing at least one group of glass fiber paper between adjacent metal sheets to form Sandwich structure: Dip-coat the above sandwich structure in the zeolite slurry as a whole, blow off the excess slurry, then dry it at 120-240°C, and finally bake it at 240-300°C for 2-6h; after the baking is completed , installing the baked sandwich structure in an external frame to obtain a cermet-based zeolite adsorption material with a corrugated structure. The metal sheet of the corrugated structure cermet-based zeolite adsorption material obtained by this method has low heat absorption and high thermal conductivity, which makes the loaded zeolite catalyst heated evenly, resulting in a decrease in its desorption efficiency, and overcomes the poor thermal conductivity of traditional ceramic fiber carriers. , leading to the problem of low desorption efficiency of the zeolite catalyst.

Description

technical field [0001] The invention relates to the technical field of catalyst material preparation methods, in particular to a preparation method of a cermet-based zeolite adsorption material with a corrugated structure. Background technique [0002] Most of the current zeolite adsorption carriers use cordierite honeycomb ceramics, but cordierite materials have disadvantages such as high price, high quality, easy damage, and large heat absorption. At the same time, in terms of installation, there will be gaps in the installation of ceramics, which is difficult to install. Generally, relevant auxiliary materials are needed to fill the gaps during the installation process. Once there are gaps, its adsorption performance will be affected and the purification effect will be reduced. In addition, ceramic fiber paper is also used as a carrier to make a rotary drum. However, due to the poor thermal conductivity of ceramic fibers, the desorption efficiency is low. In addition, due...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/16B01J20/28B01J20/30
CPCB01J20/02B01J20/103B01J20/16B01J20/28035
Inventor 吴子豹王斐张帅康
Owner 南通斐腾新材料科技有限公司
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