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Exhaust gas sulphur removal agent

A flue gas and synergist technology, applied in inorganic chemistry, dispersed particle separation, non-metallic elements, etc., can solve the problems of large denaturation, low desulfurization efficiency, lack of activity of limestone desulfurizer, etc., to reduce consumption and facilitate recovery. The effect of utilization and efficient adsorption and removal

Inactive Publication Date: 2016-08-17
NANJING HUADIAN ENERGY SAVING & ENVIRONMENTAL PROTECTION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the desulfurization agent limestone used has no in-depth and detailed analysis and testing of its chemical composition, mineral composition, ore formation age, and structural and structural characteristics, resulting in the lack of activity of the limestone desulfurization agent, low desulfurization efficiency and large denaturation, which is difficult to achieve. Efficient desulfurization

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A flue gas desulfurizer, its composition in parts by mass is as follows: 3.8 parts of N,N-dimethylpiperazine, 10 parts of silicon dioxide micropowder, 6 parts of sodium carboxymethyl cellulose, 3.8 parts of barium aluminate, desulfurization booster 0.8 part of efficacious agent, 0.8 part of sodium dodecylsulfonate, 50 parts of water, and adjust the pH value of the flue gas desulfurizer to 5 with phosphoric acid.

[0019] Among them, the particle size of the silicon dioxide micropowder is 6 μm.

[0020] Wherein, the composition by mass of the desulfurization synergist is as follows: 4 parts of adipic acid, 3 parts of carbonamide, 2.8 parts of iron sulfate, 1.2 parts of copper sulfate, 5 parts of calcium formate, and 6 parts of formic acid.

[0021] Among them, an antioxidant is added to the flue gas desulfurizer, and the antioxidant is a mixture of anthraquinone disulfonic acid and sodium anthraquinone disulfonate, and the molar ratio is 1:1.

[0022] Among them, a corr...

Embodiment 2

[0025] A flue gas desulfurizer, its composition in parts by mass is as follows: 4.8 parts of N,N-dimethylpiperazine, 12 parts of silicon dioxide micropowder, 8 parts of sodium carboxymethyl cellulose, 4.2 parts of barium aluminate, desulfurization booster 1.2 parts of efficacious agent, 1.1 parts of sodium dodecylsulfonate, 52 parts of water, and adjust the pH value of the flue gas desulfurizer to 6 with boric acid.

[0026] Wherein, the particle size of the silicon dioxide micropowder is 8 μm.

[0027] Wherein, the composition by mass of the desulfurization synergist is as follows: 5 parts of adipic acid, 3.8 parts of carbonamide, 3 parts of iron sulfate, 1.5 parts of copper sulfate, 6 parts of calcium formate, and 6.5 parts of formic acid.

[0028] Among them, an antioxidant is added to the flue gas desulfurizer, and the antioxidant is a mixture of anthraquinone disulfonic acid and sodium anthraquinone disulfonate, and the molar ratio is 1:1.

[0029] Among them, a corrosio...

Embodiment 3

[0032] A flue gas desulfurizer, its composition in parts by mass is as follows: 6.2 parts of N,N-dimethylpiperazine, 14 parts of silicon dioxide micropowder, 9 parts of sodium carboxymethyl cellulose, 4.8 parts of barium aluminate, desulfurization booster 1.6 parts of effect agent, 1.8 parts of sodium dodecylsulfonate, 55 parts of water, and use citric acid to make the pH value of the flue gas desulfurizer to 5.8.

[0033] Wherein, the particle size of the silicon dioxide micropowder is 8 μm.

[0034] Wherein, the composition by mass of the desulfurization synergist is as follows: 6 parts of adipic acid, 4.5 parts of carbonamide, 3.2 parts of iron sulfate, 2.5 parts of copper sulfate, 7.5 parts of calcium formate, and 7 parts of formic acid.

[0035] Among them, an antioxidant is added to the flue gas desulfurizer, and the antioxidant is a mixture of anthraquinone disulfonic acid and sodium anthraquinone disulfonate, and the molar ratio is 1:1.

[0036] Among them, a corrosio...

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Abstract

The invention relates to the technical field of fuel combustion exhaust gas purification, in particular to an exhaust gas sulphur removal agent. The exhaust gas sulphur removal agent comprises, by mass, 3.8-8.8 parts of N, N-lupetazin, 10-18 parts of silica micro powder, 6-12 parts of carboxyl methyl cellulose, 3.8-5.8 parts of barium aluminate, 0.8-2.4 parts of sulphur-removal synergist, 0.8-2.4 parts of sodium dodecylsulphate and 50-60 parts of water, wherein the pH value of the exhaust gas sulphur removal agent ranges from 5 to 7. By means of the exhaust gas sulphur removal agent, sulfur dioxide can be efficiently adsorbed and removed, in addition, after being desorbed, sulfur dioxide can be regenerated and reutilized, consumption of adsorbent is greatly reduced, and at the same time, through the penetrating adsorption-desorption process of the adsorbent, industrial sulfur dioxide can be recycled conveniently.

Description

technical field [0001] The invention relates to the technical field of purification of flue gas from fuel combustion, in particular to a flue gas desulfurizer. Background technique [0002] Environmental protection is increasingly concerned by the world. my country's annual SO2 emissions are large, and acid rain has covered about 40% of the country's land area. How to reduce and control SO2 pollution has become particularly urgent and important. Since my country's energy structure is dominated by coal, the vast majority of coal is used for combustion. To reduce and control SO2 pollution, we must try to reduce SO2 emissions during coal combustion. However, due to the lack and non-renewability of coal resources, high-sulfur coal is still an important resource that cannot be abandoned. High-sulfur coal can be washed to remove most of the pyrite and ash, which is conducive to improving and stabilizing the coal quality. However, fine-grained dispersed pyrite and organic sulfur ...

Claims

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Application Information

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IPC IPC(8): B01D53/04B01J20/10
CPCB01D53/04B01D2253/106
Inventor 刘小平陆建宁郑璇董人和
Owner NANJING HUADIAN ENERGY SAVING & ENVIRONMENTAL PROTECTION EQUIP
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