Device and method for adsorbing, recycling and treating organic waste gases efficiently

Abstract

The invention relates to a method for purifying, recycling and treating organic waste gases and provides a device for adsorbing, recycling and treating organic waste gases efficiently, which comprises an organic-waste-gas conveying pipe, a steam conveying pipe, a water absorption tower, an adsorption and desorption tower, an organic-solvent separating and recycling system, a switching valve, a condenser, an organic-solvent recycling tank and a steam generator, wherein two or more adsorption tanks are juxtaposedly arranged on the adsorption and desorption tower. Because the adsorption and desorption tower with two or more adsorption tanks arranged juxtaposedly are connected in series with the rear part of the water absorption tower, and the novel MIL-101 metal organic framework material are used as the adsorbent to replace the traditional adsorbents such as the granular activated carbon or activated carbon used for purifying and recycling organic waste gases in the synthetic leather industries and the like, the problems that the efficiency of removing the organic waste gases by using the single water absorption tower is low and the discharge of the organic waste gases does not reach the standard are solved, and the efficiency of adsorbing and recycling the organic waste gases is improved.

Description

technical field [0001] The invention relates to a high-efficiency adsorption recovery treatment method for organic waste gas, in particular to a high-efficiency adsorption recovery treatment device and method for volatile organic waste gas in the production process of synthetic leather. Background technique [0002] In the production process of synthetic leather, a large amount of volatile organic solvents (such as dimethylformamide (DMF), toluene, xylene, methyl ethyl ketone) need to be used. When synthetic leather products containing a large amount of organic solvents are treated at high temperature, these organic Solvents are all discharged into the atmosphere as waste gas, causing serious pollution to the environment and causing huge waste to enterprises. Therefore, it is of great practical significance to adopt economical and practical waste gas treatment technology, develop suitable process flow, make the waste gas discharge of many synthetic leather enterprises meet t...

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the problem that the current absorption technology has a low removal rate of organic solvents such as toluene, xylene, butanone, etc.

Overcome the existing single water absorption tower to treat DMF in the organic waste gas of synthetic leather, especially the low removal rate of toluene, xylene and methyl ethyl ketone, and the defects that the emission cannot meet the standard

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