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Flue gas desulfurization synergist and using method thereof

A synergist and flue gas technology, applied in separation methods, chemical instruments and methods, dispersed particle separation, etc., can solve problems such as scaling and clogging of equipment that cannot be solved, save running power, reduce limestone consumption, and reduce fouling. fouling effect

Inactive Publication Date: 2011-06-15
马鞍山市鸿伟环化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the desulfurization synergist can improve desulfurization efficiency and reduce the amount of lime, it cannot solve the problem of fouling and blockage of equipment

Method used

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  • Flue gas desulfurization synergist and using method thereof
  • Flue gas desulfurization synergist and using method thereof
  • Flue gas desulfurization synergist and using method thereof

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Embodiment Construction

[0030] Adopt 10 embodiments to describe the present invention in detail below, when system desulfurization efficiency declines, and system processing benefit fluctuates, add the flue gas desulfurization synergist of the present invention, adding method is: first lime is mixed with the lime slurry of 50-300PPm, and then Add 300-1000 mg / L flue gas desulfurization synergist to the lime slurry, stir it evenly, and then use a lime slurry pump to pump the added lime slurry into the desulfurization reaction tower. The component content of the flue gas desulfurization synergist is shown in Table 1.

[0031] Table 1. Components of flue gas desulfurization synergists

[0032] Example

ll(%)

Inorganic salt (%)

Wetting agent (%)

1

30

20

50

2

40

30

30

3

50

25

25

4

60

15

25

5

70

10

20

6

80

10

10

7

80

19

1

...

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Abstract

The invention discloses a flue gas desulfurization synergist which comprises the following components in percent by weight: 30-80 percent of adipic acid or glutaric acid, 5-30 percent of one of sodium chloride, sodium sulfate, and magnesium sulfate, and 1-50 percent of dioctyl sulfosuccinate sodium salt. A using method of the flue gas desulfurization synergist is characterized by comprising the steps of: firstly, preparing lime into limestone slurry of 50-300PPm, adding 300-1000mg / L of gas desulfurization synergist in the limestone slurry, mechanically stirring uniformly, and then pumping the limestone slurry added with the gas desulfurization synergist into a desulfuration reaction tower by using a limestone slurry pump. By using the gas desulfuration synergist, the desulfuration efficiency is improved by 5-15 percent, the consumption of limestone is reduced, the scale formation and the blockage of equipment are reduced, and the operation electric energy is saved.

Description

technical field [0001] The invention relates to the technical field of flue gas desulfurization, in particular to a flue gas desulfurization synergist and a use method thereof. Background technique [0002] With the increase of electricity demand, coal-fired power generation has become one of the main ways to obtain electricity at home and abroad. SO emissions from coal-fired flue gas in thermal power plants 2 Pollution is becoming more and more serious, reducing and controlling coal-fired SO in thermal power plants 2 Pollution has become the most urgent task in the field of air pollution control. Limestone-gypsum wet flue gas desulfurization (FGD) technology is widely used because of its mature technology, good adaptability to coal types, high desulfurization efficiency and high system operation reliability. In recent years, due to changes in the coal market, the sulfur content of incoming coal in many thermal power plants has been much higher than the design value, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/50
Inventor 孙立明贾虹
Owner 马鞍山市鸿伟环化有限公司
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