Treatment method of methyl mercaptan odor

A treatment method and technology for methyl mercaptan, which are applied in the directions of gas treatment, separation methods, chemical instruments and methods, etc., can solve the problems of poor treatment effect, human harm, and inability to remove the odor of methyl mercaptan, and achieve the realization of emission, no pollution, etc. Harmful emissions and avoid secondary pollution

Inactive Publication Date: 2020-01-14
江苏绿塔环境工程有限公司
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Problems solved by technology

It basically uses a single method for treatment, the treatment effect is poor, the odor of methyl mercaptan cannot be completely removed, and another harmful gas is often produced during the treatment process, and many of the existing treatment methods Both of them only deal with the odor of methyl mercaptan, but the secondary pollution gas generated in the process cannot be removed, which will also cause great harm to the human body

Method used

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Embodiment

[0028] A processing method for methyl mercaptan odor, comprising the following steps:

[0029] Step 1, chlorine dioxide oxidation reaction: pass the industrial waste gas through the blower into the oxidation absorption tower with chlorine dioxide solution inside, so that chlorine dioxide and methyl mercaptan can undergo chemical reaction;

[0030] Step 2, liquid separation treatment: the industrial waste gas after step 1 is passed into the dry demister, and the liquid entrained in the gas is separated to improve the transfer efficiency of the gas;

[0031] Step 3, UV high-efficiency photolysis purification reaction and ultraviolet synergistic chlorine dioxide advanced oxidation reaction: the gas separated from the liquid in step 2 is passed into the ultraviolet photolysis device, two reactions will occur, one: UV high-efficiency photolysis Purification reaction; second: ultraviolet synergistic chlorine dioxide advanced oxidation reaction;

[0032] Step 4, sodium hydroxide che...

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Abstract

The invention discloses a method for treating methyl mercaptan odor. The method comprises the following steps: chlorine dioxide oxidation reaction, liquid separation treatment, UV efficient photolysispurification reaction, ultraviolet synergistic chlorine dioxide advanced oxidation reaction and sodium hydroxide chemical absorption reaction. The method has the advantages that through the chlorinedioxide oxidation reaction, the UV efficient photolysis purification reaction and the ultraviolet synergistic chlorine dioxide advanced oxidation reaction, namely a series of reactions, the methyl mercaptan odor can be thoroughly removed; the sodium hydroxide chemical absorption reaction can be used for absorbing other harmful gases generated in the process of removing the methyl mercaptan odor, so that the secondary pollution can be avoided, and finally, the harmless emission can be realized.

Description

technical field [0001] The invention relates to the technical field of waste gas treatment, in particular to a treatment method for methyl mercaptan odor. Background technique [0002] The pollution control of methyl mercaptan tail gas is a problem that often needs to be solved in the methyl thiolation reaction of chemical production units. Because the gas molecules of methyl mercaptan diffuse quickly and drift away with the wind, the stench feels heavy and has strong adhesion, which is very strong in the atmosphere. It is difficult to be decomposed. When a small amount of methyl mercaptan tail gas is emitted during production, it will fly to a place with a radius of several kilometers, causing a very bad impact on the surrounding environment. Due to the characteristics of methyl mercaptan, my country's emission standards for air pollution and odor pollutants (Gbl4554-93) limit the discharge of methyl mercaptan at the factory boundary, which is very strict. . It is far stri...

Claims

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Application Information

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IPC IPC(8): B01D53/78B01D53/74B01D53/72
CPCB01D53/007B01D53/72B01D53/78B01D2251/108B01D2251/304B01D2251/604B01D2259/804
Inventor 汤华国
Owner 江苏绿塔环境工程有限公司
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