Adsorption and desorption catalytic combustion device

Abstract

The invention provides an adsorption and desorption catalytic combustion device, and relates to the technical field of organic waste gas filtering devices. The adsorption and desorption catalytic combustion device comprises a smoke inlet pipeline, wherein the smoke inlet pipeline is connected with an adsorption bed; a hot air flow desorption device is connected onto the adsorption bed; a catalytic oxidation device used for catalyzing desorbed organic solvents is also connected onto the adsorption bed; the catalytic oxidation device is connected with a heat exchanger; and an outlet of the heat exchanger is also connected with the hot air flow desorption device. After the filtering blockage, the manual cleaning is needed; the contact area of the organic solvents and an active carbon layer is small; the exchange speed is low, so that the adsorption efficiency of the active carbon layer on the organic solvents is reduced; when the organic solvents are desorbed, the organic solvents are adsorbed onto the surface of the active carbon layer, so that the desorption treatment needs to be performed for a long time; and the problem of desorption efficiency reduction is solved.

Description

technical field [0001] The invention relates to the technical field of organic waste gas filtering devices, in particular to an adsorption-desorption catalytic combustion device. Background technique [0002] Volatile organic waste gas pollutes the environment and is one of the important reasons for the formation of smog. It not only endangers people's health, but also seriously wastes resources. At present, there are commonly used treatment methods such as absorption method, adsorption method, combustion method and condensation method. The adsorption recovery method has been widely used due to its advantages of good treatment effect and recyclable organic matter. The adsorbent is saturated with adsorption, usually using water vapor or hot gas for desorption, the desorbed gas is condensed, and the organic solvent that is not easily soluble in water is separated and recovered. Due to the high water content of steam or hot gas, the recovered organic solvent has low purity, ...

AI Technical Summary

Problems solved by technology

[0009] Aiming at the defects in the prior art, the present invention provides an adsorption-desorption catalytic combustion device, which is used to solve the problem of manual cleaning after filtration blockage in the traditional technology; due to the small contact area and slow exchange speed between the organic solvent and the activated carbon layer, resulting in The adsorption efficiency of the activated carbon layer to the organic solvent is reduced; and when the organic solvent is desorbed, since the organic solvent is adsorbed on the surface of the activated carbon layer, it takes a long time for desorption treatment, which reduces the problem of desorption efficiency

Images