Purifying system for removing VOC (Volatile Organic Compounds) out of industrial waste gas

Abstract

The invention discloses a purifying system for removing VOC (Volatile Organic Compounds) out of industrial waste gas. The purifying system comprises a filter A, a fan, a condenser A, a gas-liquid separator A, an iron-cobalt photocatalyst salinization effect dehalogenation reactor, an absorbing tower A, an absorbing tower B, an absorbing tower C, a PLC automatic control unit, a VOC gas detector, a steam generator, a filter B, an air compressor, a drier, a condenser B, a gas-liquid separator B and 17 sets of program control valves. The purifying system disclosed by the invention has the advantages that the metal photocatalyst salinization effect is creatively applied to uniformly diffuse iron-cobalt metallic elementary fine powder in the waste gas, and under the irradiation of blue light with specific wavelength, halogenated hydrocarbon in the waste gas VOC can generate photocatalystic reaction with elementary iron and cobalt, wherein halogen atoms are compounded with iron and cobalt to produce macromolecular complex salt so as to finish dehalogenation treatment of VOC; after the VOC waste gas is treated by dehalogenation, the consumption for the absorbing efficiency of active carbon can be greatly reduced, so that the absorbing efficiency of the active carbon is obviously improved.

Description

technical field [0001] The invention relates to a system for purifying industrial waste gas VOC, which belongs to the field of waste gas treatment in environmental protection. Background technique [0002] VOC is the English abbreviation of Volatile Organic Compounds (Volatile Organic Compounds), which is the 2 、H 2 CO 3 , metal carbide, metal carbonate and ammonium carbonate, any carbon compound that participates in atmospheric photochemical reactions, including formaldehyde, ammonia, ethylene glycol, esters and other substances. When the VOC in the room or manufacturing site reaches a certain concentration, it will cause symptoms such as headache, nausea, vomiting, fatigue, etc., and even cause convulsions and coma in severe cases. It will also damage the liver, kidneys, brain and nervous system, causing memory loss and other serious symptoms as a result of. Therefore, how to control VOC has been a subject of continuous research and development and exploration at home ...

AI Technical Summary

Problems solved by technology

[0012] At present, the industrial waste gas VOC treatment method commonly used in my country has the disadvantages of high construction cost, large floor area, poor adaptability, and unsatisfactory treatment effect.

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