Flue gas pollutant treatment method based on wet plasma

A pollutant and plasma technology, which is applied in chemical instruments and methods, solid separation, electrostatic effect separation, etc., can solve the problems of limiting the industrial application of plasma purification technology, the complexity of plasma reaction and the difficulty of controlling the degree of discharge, etc.

Inactive Publication Date: 2016-12-14
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, the complexity of the plasma reaction and the uncontrollability of the degree of discharge greatly limit the degree of industrial application of plasma purification technology.

Method used

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  • Flue gas pollutant treatment method based on wet plasma
  • Flue gas pollutant treatment method based on wet plasma
  • Flue gas pollutant treatment method based on wet plasma

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Embodiment Construction

[0011] In one embodiment, the present invention discloses a method for treating flue gas pollutants based on wet plasma. The method includes the following steps:

[0012] S100. Use wet electrostatic dust removal technology to adsorb and remove dust particles in flue gas;

[0013] S200. Use wet plasma technology to oxidize and remove volatile organic compounds in flue gas and oxidize elemental mercury, sulfur dioxide and nitrogen oxides in flue gas;

[0014] S300, using a bubbling absorption method to absorb and remove residual pollutants in the flue gas after the treatment in step S200.

[0015] In this embodiment, as figure 1 As shown, a method for treating flue gas pollutants based on wet plasma is provided. The method first uses wet electrostatic technology to adsorb and remove dust particles in flue gas; and then uses wet plasma technology to treat flue gas The volatile organic compounds in the flue gas are oxidized and removed, and the elemental mercury, sulfur dioxide and nitrog...

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Abstract

The invention discloses a flue gas pollutant treatment method based on wet plasma. By means of the flue gas pollutant treatment method based on the wet plasma, fine dust particles can be removed obviously and efficient desulfuration, denitration and demercuration on the flue gas can be realized. According to the method, first the fine dust particles in the flue gas are adsorbed and removed by using a wet electrostatic technology; and then the volatile organic compound in the flue gas is oxidized removed and elemental mercury, sulfur dioxide and nitrogen oxide in the flue gas are deeply oxidized by using a wet plasma technology; and after the flue gas is oxidized, the residual pollutants are absorbed and removed by using a bubble absorption method; and finally mercury, sulphur and nitre in the bubble absorption liquid are separated and extracted by cation exchange resin. The method has the characteristics of being efficient and capable of realizing energy conservation and recycle utilization of resources. The requirements of different factories can be met by controlling the index of each link flexibly in combination with the actual pollutant compositions in the flue gas.

Description

Technical field [0001] The method belongs to the technical field of industrial flue gas pollutant treatment, and specifically relates to a flue gas pollutant treatment method based on wet plasma. Background technique [0002] The flue gas contains various pollutants such as dust particles, elemental mercury, sulfur dioxide and nitrogen oxides. The traditional flue gas pollutant treatment method is to set up an independent treatment device for each pollutant. The mainstream technical methods include dust collectors to remove dust particles, limestone slurry absorption to remove sulfur dioxide, and ammonia selective catalytic reduction to remove nitrogen oxides. Wait. This processing method has a long process, a large number of equipment and is complicated, which results in high investment and operating costs of the processing system and a large area. Therefore, the development of new technologies, the use of as few processing equipment as possible in a shorter process, to achiev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03C3/017B03C3/16
CPCB03C3/017B03C3/16
Inventor 孙培泽乔天杰殷爽睿王小华
Owner XI AN JIAOTONG UNIV
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