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Device for decomposing trimethylamine malodorous gas

A technology of malodorous gas and trimethylamine, which is applied in gas treatment, separation method, and separation of dispersed particles, etc., can solve the problems of improvement of purification efficiency, change of discharge stability, and insufficient reaction time, so as to ensure the utilization rate of ozone and improve energy efficiency , the effect of compact structure

Active Publication Date: 2017-06-23
FUDAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when dealing with organic pollutants, it is easy to have certain coking problems at the lower edge of the DBD discharge area, which will cause changes in discharge stability and safety issues. In addition, a large amount of ozone generated during the discharge process will eventually enter the exhaust system due to insufficient reaction time. cause secondary pollution
In addition, there are still problems such as purification efficiency to be improved

Method used

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  • Device for decomposing trimethylamine malodorous gas

Examples

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Comparison scheme
Effect test

Embodiment 1

[0033] Adopt the technology of the present invention to process the odorous gas containing trimethylamine, adopt the inner medium of the quartz tube with the wall thickness of 2mm and the inner diameter of 35mm, and the outer medium of the quartz tube with the wall thickness of 2mm and the outer diameter of 60mm, and fill it in the sealed cavity of the deep ultraviolet radiation area and the outer area. 30000 Pa argon gas and 900 Pa chlorine mixed gas, the inner and outer areas of the light ultraviolet radiation area, the filled airtight cavity is filled with 35000 Pa krypton gas and 600 Pa fluorine mixed gas, the discharge voltage is 5000 V, and the inlet concentration of trimethylamine 1500mg / m 3 , the residence time of trimethylamine gas in the reactor is about 0.8 s, and the degradation rate of trimethylamine after treatment is 77.2%.

Embodiment 2

[0035] Adopt the technology of the present invention to process the odorous gas containing trimethylamine, adopt the inner medium of the quartz tube with the wall thickness of 2mm and the inner diameter of 35mm, and the outer medium of the quartz tube with the wall thickness of 2mm and the outer diameter of 60mm, and fill it in the sealed cavity of the deep ultraviolet radiation area and the outer area. 35000 Pa xenon gas, the inner and outer areas of the light ultraviolet radiation area, the filled airtight cavity is filled with 20000 Pa krypton gas and 800 Pa chlorine mixed gas, the discharge voltage is 9000 V, and the intake concentration of trimethylamine is 900mg / m 3 , the residence time of trimethylamine gas in the reactor is about 1.2 s, and the degradation rate of trimethylamine after treatment is 95.6%.

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Abstract

The invention belongs to the technical field of waste gas purification, and particularly relates to a device for decomposing trimethylamine malodorous gas. The device comprises a DBD (dielectric barrier discharge) gas discharging area, a deep ultraviolet light radiation area and a shallow ultraviolet light radiation area; the DBD gas discharging area consists of an inner dielectric layer, an outer dielectric layer, an inner electrode and an outer electrode; the inner electrode and the outer electrode adopt stainless steel spring structures; the deep ultraviolet light radiation area comprises an inner area airtight cavity and an outer area airtight cavity; the cavities are filled with argon and halogen mixed gas correspondingly, or are filled with rare gas xenon, and are mainly used for generating short-wavelength ultraviolet light with wavelength of about 200 nm or below; the shallow ultraviolet light radiation area is divided into an inner area airtight cavity and an outer area airtight cavity; the cavities are filled with krypton and halogen mixed gas correspondingly, or are filled with argon and mercury, and are mainly used for generating long-wavelength ultraviolet light with wavelength of about 250 nm. The device is compact in structure, can degrade trimethylamine gas, and has high efficiency, low energy consumption and high applicability.

Description

technical field [0001] The invention belongs to the technical field of waste gas purification, and in particular relates to a device for decomposing trimethylamine malodorous gas. Background technique [0002] In recent years, people's dissatisfaction and complaints about the olfactory discomfort caused by foul-smelling gases are increasing, and foul-smelling gas pollution has received widespread attention and attention. [0003] Trimethylamine is a colorless organic amine gas, which is toxic and can produce unpleasant, pungent ammonia-like odor and fishy odor. It has a wide range of uses and can be used to prepare medicines, pesticides, photo materials, and rubber additives , explosives, chemical fiber solvents, strong basic anion exchange resins, dye leveling agents, surfactants and basic dyes, etc. It is also one of the typical odorous substances in the domestic waste disposal process, and it is also the national "Odor Pollutant Emission Standard" (GB14554 -1993) one of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/76B01D53/72
CPCB01D53/007B01D53/72B01D53/76B01D2259/818B01D2259/804Y02A50/20
Inventor 张仁熙刘杨海超侯剑源赵玮璇
Owner FUDAN UNIV
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