Centralized collection and treatment method of a plurality of liquid organic chemical raw material volatile gases

Abstract

The invention belongs to the air pollution emission control of the environmental protection field. The invention relates to a centralized collection and treatment method of a plurality of liquid organic chemical raw material volatile gases for collecting a plurality of liquid organic chemical raw material volatile gases in the petrochemical industry. According to characteristic classification, gases with low solidifying points enter into a straight-through channel; water-soluble gases and organic acid gases enter into a water phase absorption channel; gases with high condensation points which are insoluble or slightly soluble in water enter into a condensation channel; volatile gases pass through the three channels and enter into an adsorption apparatus for adsorption treatment, after desorption, the gas liquid mixture enter into a condenser for coagulation and recovery at the cooling temperature 35-40 DEG C., and after gas-liquid separation, the liquid separated from the gas-liquid separation process is sent to a waste liquid recovery pot for temporary storage; the separated gas which meets the environmental protection requirement can be emitted directly. The method solves the air pollution caused by volatilization of a plurality of liquid organic chemical raw material volatile gas, thereby the emitted volatile gas can reach the environmental protection air pollution emission control standard.

Description

technical field [0001] The invention belongs to air pollution discharge control in the field of environmental protection. Background technique [0002] As the country pays more and more attention to environmental protection, the Environmental Protection Bureau has successively issued various regulations and standards for the control of air pollution emissions in recent years. For organic vapors volatilized during transportation or use, such as: furfural, propanol, octanol, ethylene glycol, o-toluidine, tripropylene glycol, aniline, diesel, ethanol, acetone, methyl ethyl ketone, acetic acid, isopropanol, Methanol, acrylic acid, naphtha, gasoline, methyl tertiary, pure benzene, toluene, p-xylene, o-xylene, styrene, nonene, mixed xylene, vinyl acetate, methyl acrylate, butanol, etc., Most of the methods currently used are collection and control of evaporative emissions from a single organic material. There are methods for a variety of materials, but the method used is single,...

AI Technical Summary

Problems solved by technology

There are many kinds of materials, but the method used is single, resulting in poor collection and control of emission, low recovery efficiency, high energy consumption, poor safety, and often the emission cannot meet the standard

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