Device and method used for plasma cooperative electric cartridge heater screen catalytic treatment of VOCs

Abstract

The invention provides a device used for plasma cooperative electric cartridge heater screen catalytic treatment of VOCs. The device comprises a reaction chamber provided with an exhaust gas inlet andan exhaust gas outlet, and a catalytic module, a heating module, and a plasma generation module which are arranged in the reaction chamber; the catalytic module comprises a catalytic chamber, and a catalyst; at least a part of side walls of the catalytic chamber are prepared from double layer filter screens, and the catalytic chamber is provided with an opening connected with the exhaust gas inlet; the catalyst is stored in the double layer filter screens; the heating module comprises a heating element arranged in the catalytic chamber, a temperature control unit, and an electricity supply unit; the plasma generation module comprises a discharge electrode arranged around the periphery of the catalytic chamber, and a high-voltage pulse power supply; the discharge electrode is loaded with the high-voltage pulse power supply to generate high energy electrons and ion plasma in the reaction chamber. The invention also provides a method used for plasma cooperative electric cartridge heaterscreen catalytic treatment of VOCs. The device and the method are capable of achieving high removing efficiency; no secondary pollution is caused; and treatment cost is low.

Description

Technical field [0001] The invention relates to the technical field of VOCs exhaust gas treatment in the coating industry, and particularly relates to a device and method for catalytic treatment of VOCs with plasma in cooperation with an electric heating cylinder net. Background technique [0002] Volatile Organic Compounds (VOCs) refer to organic compounds that participate in atmospheric chemical reactions, including non-methane hydrocarbons (alkanes, alkenes, alkynes, halogenated hydrocarbons, etc.), oxygen-containing organic compounds (aldehydes, ketones, alcohols, etc.) ), nitrogen-containing organic matter, sulfur-containing organic matter, etc. VOCs form ozone (O 3 ) And fine particulate matter (PM 2.5 ) An important precursor of pollution. Its sources include mobile sources (such as automobiles) and fixed sources (such as factories). The main pollutant emission sources come from industries, including power and non-power industries (including steel, non-ferrous metals, cem...

AI Technical Summary

Problems solved by technology

Its advantages are high treatment efficiency, wide application, all kinds of VOCs can be treated, and the treatment effect is good for low-concentration VOCs; its disadvantage is that toxic substances will be produced when the degradation is not complete, forming secondary pollution

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