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Electrolysis reactor for removing gaseous noxious pollutant from airflow and method of use thereof

An electrolytic reactor and pollutant technology, applied in chemical instruments and methods, separation methods, dispersed particle separation, etc., can solve problems such as troublesome solid-liquid separation process, and achieve the effect of low operating cost

Inactive Publication Date: 2009-01-21
黄立维
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problem of this technology is to add granular activated carbon as the mobile electrode. The solid-liquid separation process is cumbersome. If the formulation of the absorption liquid can be improved to achieve high removal efficiency without adding solid mobile phase, industrial application will be more valuable.

Method used

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  • Electrolysis reactor for removing gaseous noxious pollutant from airflow and method of use thereof
  • Electrolysis reactor for removing gaseous noxious pollutant from airflow and method of use thereof
  • Electrolysis reactor for removing gaseous noxious pollutant from airflow and method of use thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Experimental device: using figure 1 The reactor composed of 6 sets of superimposed electrode units is a cuboid vertical structure, the size of the reactor is 130mm×130mm×800mm, and the distance between the mesh electrode plates is 45mm. Mesh anode material is RuO 2 / Ti, the mesh cathode material is 316L stainless steel, the electrode thickness is 1mm, and the mesh is 5mm×12mm diamond-shaped holes.

[0033] Processing steps: Fill the electrolyte from the reactor liquid inlet 7, and then introduce the gas to be treated into the gas distributor 2 through the gas distributor 1 to be treated, and the gas to be treated is introduced into the reactor through the gas distributor 2, and then the gas to be treated is introduced into the reactor through the gas distributor 2, After a direct current or pulse current is applied to the cathode plate 4 and the anode plate 3, a redox reaction occurs in the reactor, and the gaseous harmful pollutants in the gas to be treated are conver...

Embodiment 2

[0043] Experimental device: using figure 2 The shown reactor consists of 6 pairs of plate electrode units placed horizontally. The size of the reactor is 300mm×300mm×400mm, the size of the electrode plates is 130mm×130mm, and the distance between the plates is 40mm. Anode material is PbO 2 / Ti, the cathode plate material is titanium, and the electrode thickness is 1mm.

[0044] Processing steps: with embodiment 1.

[0045] Experimental conditions and parameters:

[0046] Electrolyte: 0.5% hydrogen chloride solution or a mixed solution of 0.5% hydrogen chloride solution and 5% sodium sulfate, the pH value of the solution is about 0.8 to 1.5. The liquid level is about 100mm above the highest electrode plate.

[0047] Power parameters: pulse power supply, peak current 15A, pulse frequency 50Hz.

[0048] Gas flow: 2000ml / min, gas temperature: 20°C

[0049] Gas composition to be treated: air + gaseous harmful pollutants

[0050] Experimental results: as shown in Table 2

...

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Abstract

The invention discloses an electrolytic reactor for removing gaseous harmful pollutants from air currents and an application method thereof; the bottom of the electrolytic reactor is provided with an inlet of the gas to be treated and a liquid drainage port, the top thereof is equipped with an purified gas outlet, the electrolytic reactor is internally provided with an electrode, the electrode includes an electrode unit, a negative plate and a positive plate of which are arranged in an interlaced and parallel way; the negative plate and the positive plate in the electrode are arranged in an interlaced and parallel way, a gas distributor which is communicated with the inlet of the gas to be treated is arranged below the electrode, a defogger is arranged between the electrode and the purified gas outlet and a liquid filling port is arranged between the electrode and the defogger. The electrolytic reactor is used for eliminating gaseous harmful pollutants from air currents, chlorine hydride water solution or the mixed water solution of chlorine hydride and salt is taken as electrolytic solution of electrolytic reaction, and when harmful gas passes through the electrolytic reactor in the acid environment, the harmful gas can be oxidized by hypochlorous acid which is generated in electrolysis of chlorine hydride, thus the electrolytic reactor can effectively eliminate gaseous harmful pollutants and has low running cost and positive significance.

Description

technical field [0001] The present invention relates to an electrolytic reactor for removing gaseous harmful pollutants from gas streams and a method for removing gaseous harmful pollutants from gas streams by using the electrolytic reactor, in particular to removing hydrocarbons, alcohols, ethers, aldehydes, phenols, and ketones from gas streams , organic gaseous pollutants of esters, amines or heterocyclic compounds, or inorganic waste gases of sulfur dioxide, hydrogen sulfide, nitrogen oxides or ammonia. Background technique [0002] Organic gaseous pollutants such as hydrocarbons, alcohols, ethers, aldehydes, phenols, ketones, esters, amines and heterocyclic compounds such as furan, and inorganic pollutants such as sulfur dioxide, hydrogen sulfide, nitrogen oxides and ammonia are widely produced in chemical, pharmaceutical and coating industries. Most of these volatile organic compounds are poisonous in industrial production processes such as packaging. After being disch...

Claims

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Application Information

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IPC IPC(8): B01D53/34B01D53/72B01D53/78
Inventor 黄立维
Owner 黄立维
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