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A kind of concentrated runner adsorption material and its preparation method

A technology of adsorption materials and concentrated runners, which is applied in the field of adsorption materials, can solve the problems of low stability, not easy to peel off, service life, and low efficiency, and achieve the effects of low wind resistance, high molecular sieve content, and high strength

Active Publication Date: 2021-09-17
SHANDONG AOFU ENVIRONMENTAL PROTECTION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above-mentioned technical problems, the present invention aims at the current situation of the production technology of concentrated runner adsorption materials, uses high-silicon type zeolite molecular sieve ZSM-5 as base material, configures inorganic binder, dispersant, lubricant, organic adhesive, according to The honeycomb material preparation process adopts the overall extrusion method to prepare the honeycomb structure concentrated runner adsorption material. The adsorption material is resistant to mechanical shock and thermal shock, not easy to peel off, and has a long service life; The problem of low efficiency and low stability in the process reduces production costs and improves production efficiency

Method used

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  • A kind of concentrated runner adsorption material and its preparation method
  • A kind of concentrated runner adsorption material and its preparation method
  • A kind of concentrated runner adsorption material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The process steps for preparing the concentrated runner adsorption material are as follows:

[0043] (1) Prepare raw materials:

[0044] The weight percent of inorganic powder: 75% high silicon type zeolite molecular sieve ZSM-5 (hereinafter abbreviated as ZSM-5), 12.5% ​​active alumina precursor of D50=0.98 μ m, 12.5% ​​fumed silica (D50 =9.23μm, specific surface 150m 2 / g).

[0045] Taking the inorganic powder as 100 parts by weight, take 8 parts by weight of methylcellulose, 2.67 parts by weight of polyether polyol, 2.67 parts by weight of soybean oil, and water of 30 parts by weight, and mix;

[0046] (2) After fully dry mixing, kneading, and vacuum refining, extrude into a molecular sieve runner sample block of 40×40×130mm, 400 holes / square inch, and a wall thickness of 7mil. After drying, use the molecular sieve runner in Table 1 to quickly burn According to the curve, after firing at 550°C for 4 hours, the firing shrinkage is 2.1%.

[0047] In the roasting st...

Embodiment 2

[0058] (1) Prepare raw materials:

[0059] The weight percentage of inorganic powder: 80% of ZSM-5, 10% of D50 = 0.98μm active alumina precursor, 10% of D50 = 9.23μm, specific surface area is 380m 2 / g of fumed silica mixed;

[0060] Taking the inorganic powder as 100 parts by weight, take 8 parts by weight of methylcellulose, 2.67 parts by weight of polyether polyol, 2.67 parts by weight of soybean oil, and 30 parts by weight of water, and mix them uniformly;

[0061] (2) After fully dry mixing, kneading, and vacuum refining, extrude into a molecular sieve runner sample block of 40×40×130mm, 400 holes / square inch, and a wall thickness of 7mil. After drying, use Table 1: Molecular sieve runner fast Sintering curve, after sintering at 550° C. and heat preservation for 4 hours (see Example 1 for the technical parameters of sintering, the following examples are all the same without special instructions), the firing shrinkage is 2.1%.

[0062] The performance of the concentratio...

Embodiment 3

[0065] (1) Prepare raw materials:

[0066] The weight percent of inorganic powder: 90% of ZSM-5, 5% of D50=0.98μm active alumina precursor, 5% of D50=9.23μm, specific surface area is 220m 2 / g of fumed silica mixed;

[0067] Taking the inorganic powder as 100 parts by weight, take 8 parts by weight of methyl cellulose, 2.67 parts by weight of polyether polyol, 2.67 parts by weight of soybean oil, and 30 parts by weight of water, and mix uniformly;

[0068] (2) After fully dry mixing, kneading, vacuum mud refining, refining and kneading mud into mud section;

[0069] (3) Extrude the plastic mud section into a 40×40×130mm, 400 holes / square inch, 7mil honeycomb structure molecular sieve runner sample block, and then carry out microwave;

[0070] (4) The green body after the microwave is cut to a fixed height, then dried, and the firing curve is shown in Table 1, and the firing shrinkage is 2.0%, and the specific process parameters of firing are shown in Example 1;

[0071] The...

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Abstract

The invention belongs to the technical field of adsorption materials, and in particular relates to a concentrated runner adsorption material, and also relates to a preparation method of the above-mentioned adsorption material. The adsorption material includes: base material: high silica zeolite molecular sieve ZSM‑5; inorganic binder: fumed silica and activated alumina precursor; dispersant: alcohol ether, lubricant: oil; organic binder : Alcohol and / or cellulose; Purified water. The beneficial effect of the present invention is that the adsorption material obtained by using the raw material and process of the present invention has the advantages of high molecular sieve content, high strength, high specific surface area, high adsorption-desorption ratio, low specific heat capacity, low wind resistance, etc., which solves the problem of traditional molecular sieve Adsorbent materials have problems such as low adsorption efficiency, low strength, poor thermal stability, and short service life.

Description

technical field [0001] The invention belongs to the technical field of adsorption materials, and in particular relates to a concentrated runner adsorption material, and also relates to a preparation method of the above-mentioned adsorption material. Background technique [0002] Volatile organic compounds (VOCs) emitted from industrial production processes directly or indirectly constitute atmospheric haze, which are key emission-restricted pollutants for air pollution control. With the increasingly stringent environmental protection regulations, VOCs emitted by industries such as chemical industry, machinery, building materials, furniture, optoelectronics, printing, coating, food, medicine, and pesticides have the characteristics of low concentration and large air volume. Traditional treatment methods, such as adsorption and absorption , regenerative oxidation combustion (RTO / RCO), condensation, membrane separation, biological oxidation, plasma, etc., cannot achieve high-ef...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/18B01J20/30B01D53/06
CPCB01D53/06B01D2257/708B01J20/186
Inventor 邢延岭潘吉庆张兆合刘洪月黄妃慧程国园王勇伟
Owner SHANDONG AOFU ENVIRONMENTAL PROTECTION SCI & TECH
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