MnO2/PPS composite material and preparation method and application thereof

A composite material and fabric technology, applied in the field of MnO2/PPS composite material and its preparation, can solve the problems of high load, inability to fully reflect catalyst performance, poor catalyst dispersion, etc., and achieve low load and high NOx removal efficiency , evenly dispersed effect

Pending Publication Date: 2020-07-03
ANHUI YUANCHEN ENVIRONMENTAL PROTECTION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN104524886A reports a kind of filter material plus catalytic material, the catalyst loading mode on the filter material is catalyst powder physical deposition loading, which leads to poor catalyst dispersion and high load, and the performance of the catalyst cannot be fully reflected

Method used

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  • MnO2/PPS composite material and preparation method and application thereof
  • MnO2/PPS composite material and preparation method and application thereof
  • MnO2/PPS composite material and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] This embodiment discloses a kind of MnO 2 The preparation method of the PPS dust removal and denitrification integrated composite filter material comprises the following steps:

[0037] (1) Wash the PPS filter material with a diameter of 1cm and immerse it in the mixed solution of sodium lauryl sulfate of 0.6g / L and 0.06mol / L of nitric acid, the solvent is water, the distance between the PPS filter material and the mixed solution The bath ratio is 1:5, ultrasonic for 5 minutes, and the frequency of ultrasonic is 30kHz, so that it can fully absorb the H in the solution + , taken out to obtain a PPS filter material with a layer of charge on the surface;

[0038] (2) Take 0.086g of potassium permanganate and dissolve it in 20mL of water to obtain a potassium permanganate solution; heat it in a water bath to 70°C, and then add it into an ultrasonic atomizer to obtain a layer of charge on the surface obtained in step (1). The PPS filter material is fixed directly above the m...

Embodiment 2

[0042] This embodiment discloses a kind of MnO 2 The preparation method of the PPS dust removal and denitrification integrated composite filter material comprises the following steps:

[0043] (1) Wash the PPS filter material with a diameter of 1cm and immerse it in the mixed solution of 0.6g / L sodium lauryl sulfate and 0.3mol / L nitric acid, the solvent is water, and the distance between the PPS filter material and the mixed solution The bath ratio is 1:5, ultrasonic for 5 minutes, and the frequency of ultrasonic is 30kHz, so that it can fully absorb the H in the solution + , taken out to obtain a PPS filter material with a layer of charge on the surface;

[0044] (2) Dissolve 0.086g of potassium permanganate in 5mL of water, heat it in a water bath to 70°C, then add it to an ultrasonic atomizer, and fix the PPS filter material with a layer of charge on the surface obtained in step (1) on an ultrasonic Just above the mist outlet of the atomizer, then place the ultrasonic ato...

Embodiment 3

[0048] This embodiment discloses a kind of MnO 2 The preparation method of the PPS dust removal and denitrification integrated composite filter material comprises the following steps:

[0049] (1) Wash the PPS filter material with a diameter of 1cm and immerse it in the mixed solution of sodium lauryl sulfate of 0.6g / L and 0.18mol / L of nitric acid, the solvent is water, the distance between the PPS filter material and the mixed solution The bath ratio is 1:5, ultrasonic for 5 minutes, and the frequency of ultrasonic is 30kHz, so that it can fully absorb the H in the solution + , taken out to obtain a PPS filter material with a layer of charge on the surface;

[0050] (2) Dissolve 0.086g of potassium permanganate in 15mL of water, heat it in a water bath to 70°C, then add it into an ultrasonic atomizer, and fix the PPS filter material with a layer of charge on the surface obtained in step (1) on the ultrasonic atomizer Just above the mist outlet of the nebulizer, then place t...

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Abstract

The invention discloses a preparation method of a MnO2 / PPS composite material, which comprises the following steps: attaching steam atomized by a potassium permanganate solution to an activated PPS fabric, and carrying out an in-situ reaction process on the surface of the PPS fabric to generate MnO2. The invention also discloses the MnO2 / PPS composite material and an application of the MnO2 / PPS composite material in dust removal and denitration. The method is based on the high-efficiency dust removal performance of a PPS filter material and the high-efficiency low-temperature denitration performance of MnO2. According to the invention, effective immobilization of MnO2 on the surface of the PPS filter material is realized through a specific process, meanwhile, the denitration efficiency ofMnO2 and the filter efficiency of the filter material are not influenced, the prepared MnO2 / PPS dedusting and denitration integrated composite filter material is high in dedusting efficiency, good inlow-temperature denitration performance, uniform in dispersion of MnO2 on the surface of the filter material and low in catalyst loading capacity, and the method is simple, low in cost and capable ofrealizing large-scale production.

Description

technical field [0001] The invention relates to the technical field of environmentally friendly composite materials, in particular to MnO 2 / PPS composite material and its preparation method and application. Background technique [0002] With the advancement of the national ecological civilization construction, the air pollutant control and emission standards are also continuously improved. Smoke and nitrogen oxides are the main targets of air pollution control. The current dust removal and denitrification processes are generally carried out in separate steps. Now Some dust removal and denitrification processes have complicated equipment, large space occupation, and high operating costs, which greatly increase the environmental protection burden of enterprises. [0003] The integrated process of dust removal and denitrification will combine the two processes of dust removal and denitrification into one, greatly reducing site occupation and investment. At present, the integ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/32B01D53/86B01D53/56B01D46/00
CPCB01J31/32B01J35/0066B01D53/8628B01D46/0001
Inventor 潘有春王光应赵羽
Owner ANHUI YUANCHEN ENVIRONMENTAL PROTECTION SCI & TECH
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