Switching Concentrated Regenerative Catalytic Combustion Organic Waste Gas Treatment System

Abstract

A switching concentration-type regenerative catalytic combustion system for organic waste gas treatment, comprising a desulphurization and denitrification treatment device, a switching-type concentration desorption device and a heat accumulation catalytic combustion device. An outlet of the desulphurization and denitrification treatment device is connected to an inlet of the switching-type concentration desorption device; a purification discharge port of the switching-type concentration desorption device is directly connected to a chimney; a concentration discharge port of the switching-type concentration desorption device is connected to the regenerative catalytic combustion device through a pipeline; and the desorption inlets of a first adsorption module and a second adsorption module are connected to a desorption gas intake pipe mounted with a valve. The system can effectively purify an organic waste gas, has an obvious energy-saving effect, and no longer pollutes the environment.

Description

【Technical field】 [0001] The invention relates to a waste gas treatment system, in particular to a switching concentration type heat storage catalytic combustion organic waste gas treatment system. 【Background technique】 [0002] The painting process is widely used in machinery, electrical equipment, home appliances, automobiles, ships, furniture and other industries. Raw materials for spray paint - coatings are composed of non-volatile and volatile components. The non-volatile components include film-forming substances and auxiliary film-forming substances, and the volatile components refer to solvents and thinners (mainly xylene). The organic gas in the paint exhaust gas comes from the volatilization of solvents and thinners. The organic solvent will not adhere to the surface of the painted object with the paint, and will be completely released during the painting and drying process to form organic waste gas. Generally, the amount of xylene waste gas volatilized in the pa...

AI Technical Summary

Problems solved by technology

The two-phase suspended matter formed after the atomization of paint and solvent in the spray painting operation escapes into the surrounding air, which will seriously pollute the air

[0003] At present, the industry mainly adopts condensation method, adsorption-vacuum desorption post-absorption method, combustion method, membrane separation and other treatment methods. The existing organic waste gas treatment methods are single, either the treatment effect is poor, or most of the energy is consumed, which increases the treatment cost.

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