Joint treatment device and method for organic waste gas

Abstract

The invention discloses a joint treatment device for organic waste gas. The organic waste gas is subjected to the joint treatment of oil removal, photoelectric treatment and adsorption filtering. An oil removal device is arranged in front of photoelectric equipment, and an adsorption filtering device is arranged behind the photoelectric equipment, wherein the oil removal device is selected from an activated carbon fiber filter screen, a stainless steel wire demister and / or a cyclone purifier; a microwave generator of the photoelectric equipment generates a microwave field to excite an electrodeless lamp to generate ultraviolet photolysis oxygen and nano-photocatalyst and organic waste gas cleaning catalyst to generate ozone so as to rapidly oxidize the organic waste gas; the adsorption filtering device adsorbs and filters the organic waste gas, purified gas is emitted after reaching standards, and saturated adsorption materials are incinerated. The organic waste gas is subjected to oil removal, photolytic oxidation fission and adsorption filtering treatment after entering the device, and the gas finally emitted from an emission port reaches the emission standards. The invention also discloses a method for performing the joint treatment of oil removal, photoelectric treatment and adsorption filtering on the organic waste gas by utilizing the joint treatment device for the organic waste gas.

Description

technical field [0001] The invention belongs to the technical field of waste gas treatment, and in particular relates to a combined organic waste gas treatment device and treatment method. technical background [0002] Organic waste gas is generally flammable and explosive, toxic and harmful, insoluble in water, soluble in organic solvents, and difficult to treat. In the treatment of organic waste gas, various principles such as organic waste gas activated carbon adsorption treatment method, catalytic combustion method, catalytic oxidation method, acid-base neutralization method, and plasma method are commonly used. At present, the most widely used treatment system for organic waste gas in my country is the activated carbon fixed bed adsorption + catalytic combustion treatment system. The system is to pack activated carbon in a fixed bed, and then combine the adsorption bed with a catalytic combustion device to form a purification treatment system. [0003] However, there ...

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Problems solved by technology

[0003] However, there is a defect in this system, that is, the regeneration and desorption temperature of the activated carbon used as the adsorbent is generally controlled below 140°C. Such a temperature is difficult to desorb organic waste gas with a boiling point above 140°C.

And when the activated carbon absorbs this kind of gas, the desorbed carbon layer is easy to smolder when it is desorbed above 140°C.

Secondly, the desorption of activated carbon is actually to re-release the VOCs that were originally adsorbed in the micropores of activated carbon, and the purpose of eradication has not been achieved.

[0004] The system puts the adsorption at the front end, forming a large resistance and affecting the treatment effect

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