Reactor for filtering PAHs (polycyclic aromatic hydrocarbons) in composite electrocatalytic oxidation treatment

A technology of a reactor and a reactant, which is applied in the field of reactors for filtering compound electrocatalytic oxidation to treat PAHs, can solve problems such as difficulties and few reports, and achieve the effects of high porosity, small pore size, and increased residence time.
CN102335550BActive Publication Date: 2013-06-12南京艾可力环境科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
南京艾可力环境科技有限公司
Publication Date
2013-06-12

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Abstract

The invention discloses a reactor for filtering PAHs (polycyclic aromatic hydrocarbons) in waste gas from composite electrocatalytic oxidation treatment. The reactor comprises a housing, wherein the housing is made of quartz glass or ceramics, a gas inlet is arranged at one end of the housing, and a gas outlet is arranged at the other end of the housing; a metal conductive material is wrapped on the outer wall surface of the housing, and the metal conductive material is grounded as an outer electrode for dielectric barrier discharge; a porous metal reaction body is arranged right in the middle in the housing, and the porous metal reaction body is connected with an alternating current power supply as an inner electrode for the dielectric barrier discharge; the porous metal reaction body isformed by sintering stainless steel powder and loaded with a metal oxide catalyst; the end close to the gas inlet, of the porous metal reaction body is closed, and the other end close to the gas outlet, of the porous metal reaction body is open and communicated with the gas outlet; and a certain gap is left between the housing and the porous metal reaction body for forming a dielectric barrier discharge gap, and the dielectric barrier discharge gap is communicated with the gas inlet. The reactor can realize high-efficient degradation of the gas-phase and the solid-phase PAHs.
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Description

technical field

[0001] The invention relates to a reactor for treating organic pollutants, in particular to a reactor for filtering and compounding electrocatalytic oxidation to treat PAHs. Background technique

[0002] Polycyclic aromatic hydrocarbons (PAHs for short) refer to organic compounds with two or more benzene rings linked together, such as naphthalene, anthracene, phenanthrene, pyrene, etc. The toxicity of PAHs is highly carcinogenic, mutagenic and teratogenic. More than 400 carcinogenic PAHs and their derivatives have been found so far, and they are widely distributed. PAHs in the atmosphere are mainly the incomplete combustion of fossil fuels (such as coal, oil, natural gas, etc.), wood, paper, and garbage. Hundreds of thousands of tons of PAHs are artificially emitted into the atmosphere around the world every year. Due to their poor water solubility and stable chemical properties, PAHs are persistent organic pollutants, and they tend to accumulate in the envi...

Claims

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