Chemical waste gas treatment device and method

Abstract

The invention discloses a chemical waste gas treatment method. The chemical waste gas treatment method comprises the following steps: introducing chemical waste gas into a settling chamber, and settling and decelerating the waste gas; introducing the settled chemical waste gas into a centrifugal gas-liquid separator to realize recovery of tar liquid in the waste gas; introducing the centrifuged waste gas into a cross-flow bed adsorption tower to realize separation treatment of organic matters; introducing the waste gas having undergone organic matter separation into clear water, and neutralizing and absorbing acid gas in the waste gas; introducing the waste gas having undergone acid neutralization into a combustion chamber, and introducing sufficient oxygen into the combustion chamber to fully oxidize part of gas in the waste gas; introducing the combusted and oxidized gas into an acetic acid solution to absorb residual organic amine in the waste gas; and finally, introducing the wastegas into an ozone oxidizer to eliminate the peculiar smell of the waste gas. The chemical waste gas treatment device and the method thereof in the invention belong to the technical field of waste gastreatment and achieve the purposes of classified and multi-stage purification of waste gas, refined treatment of the waste gas and improvement of waste gas treatment quality.

Description

technical field [0001] The invention relates to the technical field of waste gas treatment, in particular to a chemical waste gas treatment device and a method thereof. Background technique [0002] Chemical waste gas refers to the poisonous and harmful gas discharged from chemical plants in chemical production. Chemical waste gas often contains many types of pollutants, complex physical and chemical properties, and different toxicity, which seriously pollutes the environment and affects human health. The composition of chemical waste gas produced by different chemical production industries varies greatly. For example, the waste gas produced by the chlor-alkali industry mainly contains chlorine, hydrogen chloride, vinyl chloride, mercury, acetylene, etc., and the waste gas produced by the nitrogen fertilizer industry mainly contains nitrogen oxides, urea dust, carbon monoxide, ammonia, sulfur dioxide, methane, etc. [0003] At present, the processing fineness of chemical w...

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a chemical waste gas treatment device and its method, which solves the problem that the processing fineness of the current chemical waste gas is low, and other harmful components in the waste gas cannot be fully treated, so that the simultaneous treatment of different types of chemical waste gas cannot be satisfied. The problem of poor treatment and poor waste gas treatment effect

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