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Porous profile containing nanometer adsorbent for VOCs treatment and method and equipment of porous profile

A nano-adsorption and adsorbent technology, which is applied in the field of air pollution control, can solve the problems of increased manufacturing cost and operating cost of runner equipment, ineffectiveness of internal zeolite raw powder, and inability to improve the efficiency of runner treatment, so as to avoid stuffiness. The effect of reducing the risk of burning, improving adsorption and desorption efficiency, and reducing gas resistance

Pending Publication Date: 2019-08-09
TIANJIN TSINGKE ENVIRONMENTAL PROTECTION TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The first kind of direct molding preparation of honeycomb zeolite, because VOCs adsorption-desorption is carried out efficiently on the surface, the internal zeolite raw powder cannot play an effective role, resulting in waste of raw materials and increased costs. Increased equipment manufacturing and operating costs
The second one uses honeycomb inorganic fiber as a carrier to prepare honeycomb zeolite by impregnation. The distribution of zeolite raw powder on the surface of inorganic fiber carrier is uneven, the adhesion is poor, and there is a problem of secondary pollution from dust. The coverage of zeolite raw powder on the surface of glass fiber low, leading to poor treatment effect, and at the same time, the honeycomb carrier made of inorganic fibers cannot be made of small aperture due to the limitation of the process to obtain a higher specific surface area, so that the treatment efficiency of the runner cannot be improved

Method used

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  • Porous profile containing nanometer adsorbent for VOCs treatment and method and equipment of porous profile
  • Porous profile containing nanometer adsorbent for VOCs treatment and method and equipment of porous profile
  • Porous profile containing nanometer adsorbent for VOCs treatment and method and equipment of porous profile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] The preparation method of the zeolite-containing porous profile with melamine foam as the base material (that is, the base skeleton layer 1):

[0061] a) Cut the melamine foam (the typical value of the primary hole diameter is 0.2mm) to a size of 100*100*50mm, and punch holes on it through a punching mold (hole diameter 2mm, number of holes 25*25), the number of holes is 25* 25. Forming secondary channels 102 to prepare a porous melamine foam substrate.

[0062] b) Prepare 2 kg of self-assembled adsorption solution with polydiallyldimethylammonium chloride cationic polyelectrolyte, potassium chloride, and deionized water at a mass ratio of 2:8:90, and stir ultrasonically for 15 minutes.

[0063] c) Immerse the melamine foam porous substrate completely, after soaking for 30 minutes, squeeze out the excess liquid, and put it in a constant temperature box for drying at 75°C.

[0064] d) Prepare high-silicon ZSM-5 zeolite (particle size 2-10 μm), organic silicon sol with a...

Embodiment 2

[0074] The preparation method of the MOF-177 porous profile with melamine foam as the base material (that is, the base skeleton layer 1):

[0075] a) Cut the melamine foam into a size of 100*100*50mm, punch 30*30 holes through a punching mold (aperture 1.5mm, number of holes 30*30), form secondary channels 102, and prepare porous melamine foam Substrate.

[0076] b) Prepare 2 kg of self-assembly adsorption solution with polymethacrylic acid anionic polyelectrolyte, sodium chloride, and deionized water at a mass ratio of 1:6:93, and stir it ultrasonically for 15 minutes.

[0077] c) Completely immerse the melamine foam with a size of 100*100*50mm, soak for 30 minutes, let it stand naturally for 20 minutes to let the excess liquid flow out, and put it in a constant temperature box for drying at 65°C.

[0078] d) 13X zeolite (particle size 5-30 μm), organosilicon sol with a solid content of 20%, attapulgite, deionized water, according to the mass ratio of 10:5:1:33, prepare 2kg ...

Embodiment 3

[0082] The preparation method of the modified active carbon-containing porous profile with melamine foam as the base material (that is, the base skeleton layer 1):

[0083] a) Cut the melamine foam into a size of 100*100*50mm, punch 30*30 holes through a punching mold (aperture 1.5mm, number of holes 30*30), form secondary channels 102, and prepare porous melamine foam Substrate.

[0084] b) Prepare 2 kg of self-assembly adsorption solution with polyethyleneimine cationic polyelectrolyte, ammonium chloride, and deionized water at a mass ratio of 2:6:91, and stir it ultrasonically for 15 minutes.

[0085] c) Immerse the melamine foam cotton with a size of 100*100*50mm completely, soak it for 30 minutes, let it stand naturally for 20 minutes to let the excess liquid flow out, and put it in a constant temperature box for drying at 50°C.

[0086] d) Coconut shell activated carbon carbon powder modified with dilute nitric acid (particle size 5-30 μm, purchase coconut shell activat...

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Abstract

The invention provides a porous profile containing a nanometer adsorbent for VOCs treatment and a method and equipment of the porous profile. The porous profile containing the nanometer adsorbent forVOCs treatment comprises a base framework layer and nanometer adsorbent adsorption layers; the base framework layer is a porous framework profile, and holes of the porous framework profile are first-grade open hole passages; one or more nanometer adsorbent adsorption layers are arranged on the surface of the base framework layer. According to the porous profile containing the nanometer adsorbent for VOCs treatment, the nanometer adsorbent is loaded to a porous base material in a self-assembly mode, the rate of covering the surface of a barrier is high, the contact area between VOCs waste gas and the nanometer adsorbent can be increased, and therefore the efficiency of adsorption and desorption for VOCs by the nanometer adsorbent is improved.

Description

technical field [0001] The invention belongs to the technical field of air pollution control, and in particular relates to a porous profile containing a nano-adsorbent used for VOCs control and a method and equipment thereof. Background technique [0002] Volatile organic compounds (VOCs) are a general term for a class of organic pollutants that are ubiquitous in the air and have a complex composition, which seriously threaten the health of the people. VOCs play an important role in regional compound air pollution characterized by ozone (O3), fine particulate matter (PM2.5) and acid rain, and are one of the bottlenecks restricting the sustainable development of society and economy. Activated carbon adsorption is the earliest and most widely used treatment method for industrial VOCs treatment. However, in the actual application process, activated carbon has disadvantages such as difficult regeneration, adsorption performance is greatly affected by water vapor, and fire is pro...

Claims

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Application Information

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IPC IPC(8): B01J20/28B01J20/30B01D53/02G01N7/00
CPCB01J20/28014B01J20/28054B01J20/3042B01D53/02G01N7/00B01D2253/116B01D2253/204B01D2253/102B01D2253/11B01D2253/106B01D2253/108B01D2253/30B01D2257/708Y02A50/20
Inventor 杜川刘金利汪家道吴腾飞
Owner TIANJIN TSINGKE ENVIRONMENTAL PROTECTION TECH CO LTD
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