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Method for purifying harmful waste gas by combination of absorption and microelectrolysis and special device thereof

A harmful gas, micro-electrolysis technology, applied in chemical instruments and methods, separation methods, dispersed particle separation, etc., can solve the problems of waste gas treatment that have not been seen in micro-electrolysis technology, improve absorption effect, avoid secondary volatilization, operation simple effect

Inactive Publication Date: 2013-01-16
黄立维
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There are no reports on the application of micro-electrolysis technology in waste gas treatment

Method used

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  • Method for purifying harmful waste gas by combination of absorption and microelectrolysis and special device thereof
  • Method for purifying harmful waste gas by combination of absorption and microelectrolysis and special device thereof
  • Method for purifying harmful waste gas by combination of absorption and microelectrolysis and special device thereof

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Experimental program
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Effect test

Embodiment 1

[0021] Embodiment 1: Experimental device system flow such as figure 1 As shown, the micro-electrolysis reactor adopts figure 2 structure shown. The material of the outer body of the reactor is polypropylene, the size is 400mm×400mm×1200mm, the distance between adjacent iron nets is 50mm, the thickness of the iron net is 2mm, and the mesh size is 5mm×5mm. The active carbon particles used as the mobile electrode have an average geometric diameter of about 1 mm and a filling rate of about 15% in the liquid phase. The absorption tower is a packed tower, the tower diameter is Ф300mm, the height of the packing layer is 2500mm, and the packing is polypropylene ladder ring. The simulated exhaust gas enters through the air inlet at the bottom of the tower, passes through the absorption reaction zone, and is discharged from the upper part.

[0022] The experimental conditions are: the absorption liquid is 2% sodium chloride aqueous solution + hydrochloric acid. Solution pH=3±0.5. ...

Embodiment 2

[0031] Embodiment 2: experimental device system flow such asfigure 1 As shown, the micro-electrolysis reactor adopts image 3 structure shown. The micro-electrolysis reactor adopts a cylindrical structure, the cylinder material is polypropylene, the diameter is 150mm, the effective height is 800mm, the diameter of the iron Pall ring is 25mm, and the thickness is 2mm. The active carbon particles used as the mobile electrode have an average geometric diameter of about 1 mm and a filling rate of about 15% in the liquid phase. The absorption tower is a packed tower, the tower diameter is Ф300mm, the height of the packing layer is 2500mm, and the packing is polypropylene ladder ring. . The simulated exhaust gas enters through the air inlet at the bottom of the tower, passes through the absorption reaction zone, and is discharged from the upper part.

[0032] The experimental conditions are: the absorption liquid is 2% sodium sulfate aqueous solution+sulfuric acid. Solution pH=5...

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Abstract

The invention discloses a method for purifying harmful waste gas by combination of absorption and microelectrolysis, which is used for removing volatile organic matters such as hydrocarbon, alcohol, ether, aldehyde, phenol, ketone, ester and amine and inorganic matters such as hydrogen sulfide, sulfur dioxide, nitric oxide and ammonia in airflow. The treating process of the method comprises the following steps: treated gas is introduced into an absorbing tower, wherein after the harmful gas is absorbed by absorbing liquid, the absorbing liquid is introduced into a microelectrolysis reactor formed by an iron mesh or iron filler and active carbon particles, and then the absorbed harmful substances are degraded, so that the absorbing effect is greatly improved, the possibility of secondary volatilization of the harmful substances is avoided. The method is especially applicable to treatment of harmful gaseous pollutants with bad water solubility such as chlorine-containing organic matters and toluene. The invention also discloses the special device and has the advantages of reasonable and simple structure, easiness in operation and use and high treating efficiency and the like.

Description

technical field [0001] The present invention relates to a method of absorbing and combining micro-electrolysis to purify harmful gases and a special device thereof, in particular to removing volatile organic compounds such as hydrocarbons, alcohols, ethers, aldehydes, phenols, ketones, esters and amines, hydrogen sulfide, sulfur dioxide, The invention discloses a method and a device for inorganic substances such as nitrogen oxides and ammonia, belonging to the technical field of air pollution control and environmental protection. Background technique [0002] Contains volatile organic compounds such as hydrocarbons, alcohols, ethers, aldehydes, phenols, ketones, esters, and amines, and inorganic substances such as hydrogen sulfide, sulfur dioxide, nitrogen oxides, and ammonia, and is produced in various production processes such as chemical, pharmaceutical, painting, and sewage treatment stations. process. These pollutants are not only harmful to the human body, some are ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/78B01D53/12B01D53/32B01D53/96B01D53/46
Inventor 黄立维
Owner 黄立维
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