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Method for recycling waste dust removal filter material

A filter material and composite filter material technology, applied in the field of recycling waste dust removal filter material, can solve the problems of ineffective utilization of resources, secondary pollution, etc., and achieve environmental protection, low cost, and wide application prospects. Effect

Inactive Publication Date: 2014-08-27
FUZHOU UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But neither of these two methods can effectively use these resources, and it is easy to cause secondary pollution

Method used

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  • Method for recycling waste dust removal filter material
  • Method for recycling waste dust removal filter material
  • Method for recycling waste dust removal filter material

Examples

Experimental program
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Effect test

Embodiment 1

[0033] (1) Decontaminate and clean the waste dust-removing aramid filter material. After drying, first put it in an inert gas N 2 Carbonized at 800 °C for 60 min under the protection, and then used KOH in N according to the ratio of alkali to carbon mass ratio of 4:1. 2 Activated at 800 °C for 60 min under protection, the specific surface area was as high as 2493.049 m 2 / g of aramid filter material-based activated carbon fiber (ACF);

[0034] (2) The ACF in (1) was treated with 30 wt% nitric acid solution for 120 min, filtered with suction, washed with deionized water to make the pH value neutral, and dried in an oven for 12 h;

[0035] (3) Take 0.3 g of acidified ACF in (2), prepare 3.0 g of manganese acetate ethanol solution with a mass concentration of 2.86 % at the same time, and use incipient wetness dipping method to make ACF immersed in saturated manganese acetate ethanol solution (≈0.66 g) , after dipping at room temperature for 12-24 h, and drying in an oven for 12...

Embodiment 2

[0041] (1) Decontaminate and clean the waste dust-removing aramid filter material. After drying, first put it in an inert gas N 2 Carbonized at 700 °C for 120 min under the protection, and then used KOH in N according to the ratio of alkali to carbon mass ratio of 4:1. 2Activated at 800 °C for 60 min under protection, the specific surface area was as high as 2493.049 m 2 / g of aramid filter material-based activated carbon fiber (ACF);

[0042] (2) The ACF in (1) was treated with 60 wt% nitric acid solution for 60 min, filtered with suction, washed with deionized water to make the pH value close to neutral, and dried in an oven for 18 h;

[0043] (3) Take 0.3 g of acidified ACF in (2), and prepare 3.0 g of manganese acetate ethanol solution with a mass concentration of 8.38% at the same time, and use incipient wetness impregnation method to impregnate ACF with saturated manganese acetate ethanol solution (≈0.66 g) , after immersion at room temperature for 18 h, and dried in a...

Embodiment 3

[0049] (1) Decontaminate and clean the waste dust-removing aramid filter material. After drying, first put it in an inert gas N 2 Carbonized at 880 °C for 60 min under the protection, and then used KOH in the ratio of alkali to carbon mass ratio of 4:1 in N 2 Activated at 900 °C for 30 min under protection, the specific surface area was as high as 2493.049 m 2 / g of aramid filter material-based activated carbon fiber (ACF);

[0050] (2) The ACF in (1) was treated with 30 wt% nitric acid solution for 120 min, filtered with suction, washed with deionized water to make the pH value close to neutral, and dried in an oven for 24 h;

[0051] (3) Take 0.3 g of acidified ACF in (2), prepare 3.0 g of manganese acetate ethanol solution with a mass concentration of 16.6% at the same time, and use incipient wetness impregnation method to impregnate ACF with saturated manganese acetate ethanol solution (≈0.66 g) , after dipping at room temperature for 24 h, and drying in an oven for 24 h...

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Abstract

The invention relates to a method for recycling waste dust removal filter material. The method takes the industrial waste dust removal filter material as precursor, and comprises the steps of preparing filter material-based activated carbon fiber (ACF) with larger specific surface area by carbonization and activation, loading a manganese oxide catalyst onto the filter material-based ACF to enable the filter material-based ACF to be applied to the field of low-temperature denitration catalysis, and combining the filter material-based ACF with polyphenylene sulfite (PPS) dust removal filter material. The prepared MnOx / ACF@PPS filter material not only has a dust removal function, but also has a certain denitration effect; the mechanical property of the obtained composite filter material is hardly influenced. The method provides a good thought for solving the problem of industrial waste material treatment, so that the resource can be recycled.

Description

technical field [0001] The invention relates to a method for recycling waste dust removal filter materials, and belongs to the field of filter material preparation. Background technique [0002] my country is a big coal-burning country, and the combustion of coal emits a large amount of pollutants (toxic gases and dust). At present, the bag filter with filter material as the core is used to control the smoke and dust particles emitted by coal-fired thermal power plants. Due to long-term high-temperature operation, these filter materials will gradually lose the effect of dust removal due to damage, thus becoming an industrial waste. thing. There are two main ways to deal with these wastes in industry: one is to turn them into gas and solid residues through waste incineration, so as to reduce the space occupied by these wastes; way to concentrate it in landfill. However, neither of these two methods can effectively utilize these resources, and it is easy to cause secondary ...

Claims

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Application Information

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IPC IPC(8): B01D39/00B01J23/34B01D53/86B01D53/56
Inventor 郑玉婴徐哲
Owner FUZHOU UNIVERSITY
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