Styrene waste gas treatment device

Abstract

The invention discloses a styrene waste gas treatment device. The styrene waste gas treatment device comprises an absorption tower. A packing layer is arranged in the absorption tower, a styrene waste gas input pipeline is connected to the bottom of the absorption tower, a high-pressure draught fan is arranged on the styrene waste gas input pipeline, an exhaust gas emission pipeline is connected to the top of the absorption tower, an absorption liquid storage tank is arranged below the abortion tower, the bottom of the absorption tower is communicated with the absorption liquid storage tank, the absorption liquid storage tank is connected with the top of the absorption tower through an absorption liquid circulation pipe, and a circulation pump is arranged on the absorption liquid circulation pipe. By adopting the mode that a potassium permanganate solution is sprayed for absorbing styrene, styrene-containing waste gas generated by styrene materials in refinery enterprises on various occasions such as highway loading, wharf shipping and storage tank breathing can be simultaneously treated, and high treatment efficiency can be achieved; meanwhile, the process is simple, the occupied area is small, energy consumption is low, and the requirement of the newest national environmental protection standard for the styrene emission limit can be met.

Description

technical field [0001] The invention relates to a styrene waste gas treatment device, which is used for treating styrene-containing waste gas generated during road loading, wharf loading and storage tank respiration of styrene materials in refining and chemical enterprises. Background technique [0002] Styrene is an important chemical monomer in plastic production and other industries, and its application range and consumption are increasing. Refining and chemical enterprises will produce a large amount of styrene-containing waste gas in the process of styrene road loading, wharf loading and tank tank breathing. The discharge of these styrene-containing waste gases has a huge impact on the ecological environment and human health. Security risks. According to the latest GB31571 "Petrochemical Industry Pollutant Discharge Standards" issued by the country, the emission limit of styrene in waste gas is 50mg / m 3 . However, at present, the effective treatment of styrene waste ...

AI Technical Summary

Problems solved by technology

The condensation method can directly recover liquid styrene, but the condensation method needs to be lowered to a very low temperature to meet environmental protection standards, the energy consumption is high, and the device configuration is complicated and difficult to maintain

The adsorption method mostly uses activated carbon adsorbents to treat styrene waste gas, but styrene has the problems of easy polymerization, polymerization heat effect and adsorption heat effect, so long-term use of activated carbon adsorption will easily lead to deactivation of activated carbon and failure to regenerate, and there is a risk of fire

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