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A kind of multifunctional desulfurization and denitrification environmental protection preparation and preparation method thereof

A desulfurization and denitrification, multi-functional technology, applied in separation methods, chemical instruments and methods, other chemical processes, etc., can solve problems such as difficulty in realizing large-scale industrialization, low stability, and increased cost, and achieve resource utilization, Long service life and good mercury removal effect

Active Publication Date: 2018-07-10
孝义市鑫东亨清洁能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, many companies have begun to study preparations that can simultaneously desulfurize and denitrify, and some products are also on the market; most desulfurization and denitrification preparations have relatively high costs, small adsorption capacity, and low stability. There are certain defects
In recent years, the most common method is spraying powdered activated carbon. As an adsorbent, activated carbon has good desulfurization and denitrification efficiency, but its utilization rate is low, and the cost will continue to increase. It is still difficult to achieve large-scale industrialization.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A multifunctional desulfurization and denitration environmental protection preparation, which is prepared from the following raw materials in parts by weight:

[0022] 40 parts of water, 30 parts of peat soil, 20 parts of peanut shells, 20 parts of sorghum straw, 15 parts of wheat bran, 10 parts of bentonite, 8 parts of phenolic resin, 8 parts of zeolite powder, 6 parts of dolomite, 4 parts of potassium humate, 2 parts of ferric chloride, 1 part of manganese acetate.

[0023] The preparation method of above-mentioned preparation comprises the steps:

[0024] 1) Cut sorghum stalks into pieces, then mix them with peanut shells, add them to a pulverizer, crush them, and mix them evenly with wheat bran, dry them in a drying oven at 100°C for 30 minutes, take them out and cool them down to room temperature naturally, and put them into a carbonization furnace , the furnace temperature is 500°C for carbonization and activation for 1 hour, and it is naturally cooled to room te...

Embodiment 2

[0030] A multifunctional desulfurization and denitration environmental protection preparation, which is prepared from the following raw materials in parts by weight:

[0031] 70 parts of water, 50 parts of peat soil, 30 parts of peanut shells, 30 parts of sorghum straw, 25 parts of wheat bran, 15 parts of bentonite, 12 parts of phenolic resin, 12 parts of zeolite powder, 9 parts of dolomite, 7 parts of potassium humate, 3 parts of ferric chloride, 2 parts of manganese acetate.

[0032] The preparation method of above-mentioned preparation comprises the steps:

[0033] 1) Cut sorghum stalks into pieces, then mix them with peanut shells, add them to a grinder, crush them, mix them evenly with wheat bran, dry them in a drying oven at 100°C for 30 minutes, take them out and cool them down to room temperature naturally, and put them into a carbonization furnace , the furnace temperature is 500°C for carbonization and activation for 1 hour, and it is naturally cooled to room temper...

Embodiment 3

[0039] The effect test of the desulfurization and denitrification of the preparation of the present invention:

[0040] Get the adsorbent 5g of embodiment 1-2 respectively, be placed in the reactor and carry out the experiment, simulate and detect the harmful substance in the boiler flue gas, the condition is as follows: NOx, SO 2 And synthetic air composed of mercury is blown into the reaction system to control the NOx concentration to 18mg / m 3 , SO 2 The concentration is 15mg / m 3 , Mercury 100ug / m 3 , the reaction space velocity (GHSV) is 80,000h -1 . The adsorption capacity of the adsorbent to harmful substances was detected (hazardous substance / adsorbent=mg / g), and the results are shown in Table 1.

[0041] Table 1

[0042] group

[0043] Conclusion: can determine by above table 1, preparation of the present invention is to NOx, SO in flue gas 2 And the adsorption effect of main harmful substances such as mercury is better.

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PUM

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Abstract

The invention belongs to the technical field of environment protection and discloses a multifunctional desulfurization and denitrification environment-friendly preparation. The preparation is prepared from water, turfy soil, peanut hulls, sorghum straw, wheat bran, bentonite, phenolic resin, zeolite powder, dolomite, potassium humate, ferric trichloride and manganese acetate. The preparation has various functions such as desulfurization, denitrification and mercury removal and is wide in application prospect.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a multifunctional desulfurization and denitration environmental protection preparation and a preparation method thereof. Background technique [0002] Thermal power plants produce a large amount of exhaust gas containing sulfur and nitrate from the coal burned to generate electricity, and these exhaust gases are discharged into the atmosphere to cause pollution and form acid rain. Desulfurization and denitrification equipment in thermal power plants are used to treat these waste gases containing a large amount of sulfur and nitrate. The desulfurization process mainly includes: DLWS desulfurization, SDA desulfurization and LIFAC desulfurization; the above desulfurization methods have relatively high operating costs. The denitrification process mainly includes: flue gas denitrification and SCR denitrification; the above-mentioned denitrification proces...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26B01D53/02
CPCB01D53/02B01D2253/25B01D2257/302B01D2257/40B01D2257/602B01J20/0229B01J20/12B01J20/165B01J20/20B01J20/223B01J20/24B01J20/26B01J2220/46
Inventor 林官敬穆锦晖乔亚东成永富李张红
Owner 孝义市鑫东亨清洁能源有限公司
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