Organic waste gas degradation method based on dielectric barrier discharge

A technology of dielectric barrier discharge and organic waste gas, applied in the field of ions, can solve problems such as substandard degradation rate, and achieve the effect of improving degradation efficiency, changing discharge electric field strength, and increasing concentration

Active Publication Date: 2020-12-15
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the existing problem that the degradation rate of volatile organic compounds is not up to standard after dielectric barrier discharge treatment, and to provide a method for organic waste gas degradation based on dielectric barrier discharge, which can effectively improve the low temperature of dielectric barrier discharge. The concentration of active particles in the plasma, thereby improving the degradation efficiency of organic waste gas, and achieving exhaust emission standards

Method used

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  • Organic waste gas degradation method based on dielectric barrier discharge
  • Organic waste gas degradation method based on dielectric barrier discharge
  • Organic waste gas degradation method based on dielectric barrier discharge

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Embodiment

[0044] by figure 1 The coaxial tubular dielectric barrier discharge low-temperature plasma reactor in a, wherein the high-voltage electrode 1 with a dielectric tube in the center is coaxially sleeved in the barrier dielectric tube 3 (specifically, quartz), and the ground electrode 2 is wrapped in the barrier dielectric tube On the outer wall of 3, an air inlet 5 and an air outlet 6 are provided on the outer wall of the barrier medium tube 3, and the discharge area 7 formed by the gap between the outer wall of the medium high voltage electrode 1 and the inner wall of the barrier medium tube 3 is located in the center, The fluorine-containing material coating 4 is located on the surface of the outer dielectric tube of the tubular high-voltage electrode 1 .

[0045] PFA is sprayed by physical spraying method, wherein, the inner diameter of the outer tube of the coaxial tubular dielectric barrier discharge low-temperature plasma reactor is 18mm, the barrier medium layer is 2mm, th...

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Abstract

The invention relates to the technical field of plasma, and discloses an organic waste gas degradation method based on dielectric barrier discharge. According to the degradation method, a dielectric barrier discharge low-temperature plasma reactor is adopted, and a fluorine-containing material coating is arranged in the dielectric barrier discharge low-temperature plasma reactor. The method provided by the invention can effectively reduce energy consumption, improve the degradation efficiency of organic waste gas and realize up-to-standard emission of tail gas.

Description

technical field [0001] The invention relates to the field of plasma technology, in particular to a method for degrading organic waste gas based on dielectric barrier discharge. Background technique [0002] The main hazards in industrial organic waste gas are volatile organic compounds (VOCs, volatile organic compounds). Due to the direct emission of these VOCs, they cause serious environmental problems, such as photochemical smog and smog. [0003] The low-temperature plasma method uses gas discharge to generate highly active particles (including electrons, ions, free radicals, and excited molecules, etc.) to oxidize organic pollutants, and the final product is mainly CO 2 and H 2 O. The low-temperature plasma method has the advantages of simple process and convenient operation and management, and the dielectric barrier discharge method has the advantages of not easy to break down, good safety and stability, etc. Therefore, it is suitable for large gas volume and low conc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/32
CPCB01D53/32B01D2257/708B01D2259/818Y02C20/30
Inventor 唐诗雅关银霞王世强牟善军牟洪祥刘全桢
Owner CHINA PETROLEUM & CHEM CORP
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