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Desulphurization synergist used for wet desulphurization

A wet desulfurization and synergistic technology, applied in separation methods, chemical instruments and methods, and dispersed particle separation, etc., can solve the problems of long duration of action, short duration of action, slow onset time, etc., and achieve less usage. , the effect of reducing dosage and reducing scaling

Inactive Publication Date: 2016-10-05
陕西安得科技实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the desulfurization synergists that can be used in the limestone-gypsum wet desulfurization process mainly include inorganic desulfurization synergists, organic desulfurization synergists and compound desulfurization synergists. The disadvantage of improving desulfurization efficiency is that the duration is short, and it is a consumable desulfurization synergist; the advantage of organic desulfurization synergists is that it has a long duration of action, does not directly consume desulfurization synergists, and the dosage is small, and the disadvantage is that the onset time is slow , generally 1-2 hours; although the composite desulfurization synergist overcomes the shortcomings of the inorganic desulfurization synergist and the organic desulfurization synergist, the formula is complex, the price is high, and the dosage is large

Method used

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  • Desulphurization synergist used for wet desulphurization
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  • Desulphurization synergist used for wet desulphurization

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The components of the desulfurization synergist and the mass percentage of each component are: the total weight is 100kg.

[0021]

[0022] The method of using the desulfurization synergist is as follows:

[0023] A. The above-mentioned raw materials are compounded in proportion to form a finished product;

[0024] B. The above-mentioned desulfurization synergist is added in the absorption tower, and the initial addition is 1.3‰ of the limestone slurry weight;

[0025] C. After the desulfurization system has been running for a period of time, supplement it according to the loss of desulfurization synergist;

[0026] D. Apply the above desulfurization synergist to the inlet flue gas SO 2 The concentration design value is 6000mg / Nm 3 In the desulfurization system, the flue gas SO at the inlet of the desulfurization system 2 The actual value of the concentration is 6300mg / Nm 3 , the outlet flue gas SO 2 The concentration detection value is 195mg / Nm 3 , the liquid...

Embodiment 2

[0028] The components of the desulfurization synergist and the mass percentage of each component are: the total weight is 100kg.

[0029]

[0030] The method of using the desulfurization synergist is as follows:

[0031] A. The above-mentioned raw materials are compounded in proportion to form a finished product;

[0032] B, the above-mentioned desulfurization synergist is added in the absorption tower, the initial addition is 1.3‰ of the limestone slurry weight;

[0033] C. After the desulfurization system has been running for a period of time, supplement it according to the loss of desulfurization synergist;

[0034] D. Apply the above desulfurization synergist to the inlet flue gas SO 2 The concentration design value is 6000mg / Nm 3 In the desulfurization system, the flue gas SO at the inlet of the desulfurization system 2 The actual value of the concentration is 6300mg / Nm 3 , the outlet flue gas SO 2 The concentration detection value is 175mg / Nm 3 , the liquid-gas...

Embodiment 3

[0036] The components of the desulfurization synergist and the mass percentage of each component are: the total weight is 100kg.

[0037]

[0038] The method of using the desulfurization synergist is as follows:

[0039] A. The above-mentioned raw materials are compounded in proportion to form a finished product;

[0040] B, the above-mentioned desulfurization synergist is added in the absorption tower, the initial addition is 1.3‰ of the limestone slurry weight;

[0041] C. After the desulfurization system has been running for a period of time, supplement it according to the loss of desulfurization synergist;

[0042] D. Apply the above desulfurization synergist to the inlet flue gas SO 2 The concentration design value is 6000mg / Nm 3 In the desulfurization system, the flue gas SO at the inlet of the desulfurization system 2 The actual value of the concentration is 6300mg / Nm 3 , the outlet flue gas SO 2 The concentration detection value is 171mg / Nm 3 , the liquid-gas...

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Abstract

The invention discloses a desulfurization synergist suitable for wet desulfurization. According to the mass percentage, the raw materials include: 40%-60% of organic synergistic components, 20%-40% of inorganic synergistic components, surfactants 5%-10%, disperse components 5%-10%. The invention is simple to manufacture, does not need heating, is convenient to use, uses less, and is low in cost. The gas ratio can be reduced by 10-20%, and a slurry circulation pump is shut down, and the outlet SO 2 It complies with the emission standard of air pollutants for thermal power plants GB13223-2011.

Description

technical field [0001] The invention relates to a wet desulfurization process, in particular to a desulfurization synergist suitable for wet desulfurization. Background technique [0002] In the traditional wet desulfurization process, the limestone-gypsum desulfurization process is mainly used. Its working principle is to use limestone as an absorbent to absorb SO in the flue gas. 2 , to generate calcium sulfite, which is forcibly oxidized into calcium sulfate and gypsum by the oxygen in the air blown into the absorption tower. In the traditional limestone-gypsum desulfurization method, the cost of limestone as an absorbent is low, and the desulfurization by-products can be comprehensively utilized, so this desulfurization method is widely used. [0003] At present, the desulfurization synergists that can be used in the limestone-gypsum wet desulfurization process mainly include inorganic desulfurization synergists, organic desulfurization synergists and compound desulfuri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/80B01D53/50
Inventor 张毅敏薛测产
Owner 陕西安得科技实业有限公司
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