The activated carbon adsorption+catalytic oxidation (CO) technology adopts three combined processes of activated carbon adsorption, hot air flow desorption, and catalytic oxidation to purify organic waste gas. By utilizing the characteristics of activated carbon's multiple micropores and huge surface tension, the organic solvents in the waste gas are adsorbed, and the discharged waste gas is purified into a working process; After saturation of activated carbon adsorption, the organic solvents adsorbed on the activated carbon are removed by hot gas flow at a certain concentration ratio and sent to the catalytic combustion bed as the second working process; After further heating, the high concentration organic waste gas entering the catalytic combustion bed undergoes oxygen decomposition under the action of the catalyst, which is converted into CO2 and H2O. The heat released from the decomposition is recovered by an efficient heat exchanger and used to preheat the high concentration organic waste gas entering the catalytic combustion bed, which is the third working process. After running for a certain period of time to reach self equilibrium, the desorption and catalytic oxidation decomposition processes do not require external energy heating.

According to the emission of VOCs from organic waste gas, two or more adsorption beds can be alternately switched for adsorption use. In this way, switching between multiple adsorption beds can achieve continuous purification work with high air volume.

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