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Adsorbent for boiler fume treatment

A boiler flue gas and adsorbent technology, which is applied in gas treatment, membrane technology, and other chemical processes, can solve problems such as low stability, high cost of adsorbent preparation, and small adsorption capacity, achieving long service life and realizing Resource utilization and the effect of improving adsorption capacity

Active Publication Date: 2016-05-25
恒源工业炉(靖江)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Commonly used adsorbents have relatively high preparation costs, small adsorption capacity, and low stability, and there are certain defects in large-scale applications.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] An adsorbent for treating boiler flue gas, which is prepared from the following raw materials in parts by weight:

[0022] 1 part of manganese acetate, 2 parts of humic acid, 2 parts of ferric chloride, 3 parts of silica gel powder, 4 parts of zeolite powder, 4 parts of dolomite, 5 parts of bentonite, 5 parts of phenolic resin, 6 parts of peanut shell, 6 parts of wheat bran 12 parts, 12 parts of sodium carbonate aqueous solution with a concentration of 2M, 15 parts of peat soil, and 30 parts of water.

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

[0024] 1) Add dolomite and phenolic resin to a ball mill for ball milling to obtain a powder with a particle size of 50 mesh, which is material A;

[0025] 2) Add manganese acetate, ferric chloride and peat soil to water, heat and stir in a magnetic stirrer until dry, then put it in a drying oven at 80°C for 30 minutes, and finally grind until the particle size is 100 mesh, that is ge...

Embodiment 2

[0031] An adsorbent for treating boiler flue gas, which is prepared from the following raw materials in parts by weight:

[0032] 2 parts of manganese acetate, 3 parts of humic acid, 3 parts of ferric chloride, 5 parts of silica gel powder, 7 parts of zeolite powder, 7 parts of dolomite, 9 parts of bentonite, 9 parts of phenolic resin, 10 parts of peanut shell, 10 parts of wheat bran 20 parts, 20 parts of sodium carbonate aqueous solution, 22 parts of peat soil, and 50 parts of water with a concentration of 2M.

[0033] The preparation technology of above-mentioned adsorbent comprises the steps:

[0034] 1) Add dolomite and phenolic resin to a ball mill for ball milling to obtain a powder with a particle size of 100 mesh, which is material A;

[0035] 2) Add manganese acetate, ferric chloride and peat soil to water, heat and stir in a magnetic stirrer until dry, then put it in a drying oven at 80°C for 30 minutes, and finally grind to a particle size of 200 mesh, that is get...

Embodiment 3

[0040] The effect test of the treatment boiler flue gas of adsorbent of the present invention:

[0041] Get respectively the adsorbent 5g of embodiment 1-2, be placed in the reactor and carry out 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 dust is blown into the reaction system to control the NOx concentration to 15mg / m 3 , SO 2 The concentration is 8mg / m 3 , Dust 6mg / 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.

[0042] Table 1

[0043] group NOx SO 2 dust Example 1 31.7mg / g 47.7mg / g 16.5mg / g Example 2 32.9mg / g 46.1mg / g 18.2mg / g

[0044] Conclusion: by the above table 1, it can be determined that the sorbent of the present invention is effective for NOx, SO in the f...

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Abstract

The invention belongs to the technical field of environmental protection and discloses an adsorbent for boiler fume treatment. The adsorbent is prepared from the following raw materials: manganese acetate, humic acid, ferric trichloride, silica-gel powder, zeolite powder, dolomite, bentonite, phenolic resin, peanut shell, wheat bran, a 2M sodium carbonate solution, turfy soil and water. The adsorbent disclosed by the invention has a relatively good adsorption effect on main harmful gases such as NOx, SO2 and dust in fume.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to an adsorbent for treating boiler flue gas. Background technique [0002] Boiler flue gas is a mixture of gas and smoke, which is the main cause of air pollution in residential areas. The composition of the flue gas is very complex. The gas includes water vapor, sulfur dioxide, hydrocarbons, and nitrogen oxides. The smoke includes fuel ash, coal particles, oil droplets, and high-temperature cracking products. Therefore, the pollution of flue gas to the environment is the compound pollution of various poisons. The harmfulness of smoke to the human body is related to the size of the particles. The most harmful to the human body is the floating dust with a diameter of less than 10 microns, especially the 1-2.5 micron floating dust is the most harmful. [0003] The most commonly used method for treating flue gas in the prior art is the adsorption metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/24B01J20/30B01D53/02
CPCB01D53/02B01D2258/0283B01J20/12B01J2220/46
Inventor 许沛华
Owner 恒源工业炉(靖江)有限公司
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