Organic waste gas adsorption recovery device

Abstract

The invention discloses an organic waste gas adsorption recovery device, which comprises an adsorption tank, a waste gas conveying pipe and a purified gas conveying pipe, wherein the adsorption tank is used for adsorbing organic matters; the waste gas conveying pipe is used for introducing organic waste gas into the adsorption tank; the purified gas conveying pipe is used for outputting gas purified through the adsorption of the adsorption tank; adsorption materials in the adsorption tank are active carbon; the adsorption recovery device also comprises a nitrogen gas generating mechanism, a heating mechanism, a first conveying pipe, a condensing mechanism and a temperature lowering mechanism; the heating mechanism is communicated with the nitrogen generating mechanism; the first conveying pipe is used for introducing high-temperature nitrogen gas into the adsorption tank; the condensing mechanism is used for condensing organic matters and is communicated with the adsorption tank; the temperature lowering mechanism is used for lowering the temperature of the active carbon and is arranged in the adsorption tank. The organic waste gas adsorption recovery device has the advantages that the organic matters on the active carbon are desorbed through high-temperature nitrogen gas, and are brought into the condensing mechanism to be condensed and recovered; the adsorption processing cost is low; the desorption recovery rate is higher; the temperature lowering mechanism is adopted for lowering the temperature of the active carbon; the adsorption capability of the active carbon is regenerated; the service life of the active carbon is prolonged; the production and processing cost is reduced.

Description

technical field [0001] The invention relates to an organic waste gas adsorption recovery device. Background technique [0002] Activated carbon has a good specific surface area and strong adsorption, decolorization and deodorization properties, so it is often used as an adsorption medium in a circular purification system to absorb toxic and polluting substances in waste gas and wastewater. [0003] At present, when dealing with organic matter in industrial tail gas, it is generally absorbed by activated carbon and then taken out by high-temperature water vapor, condensed and dehydrated for recycling. However, some organic matter is soluble in water, and this method will cause secondary pollution. [0004] In the patent application No. 2010105543646, a desorption device that fills activated carbon between the water vapor pipe and the exhaust pipe is disclosed, which avoids the secondary pollution caused by organic matter, but it needs to pump the recovery device durin...

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Problems solved by technology

However, some organic matter is soluble in water, and this method will cause secondary pollution

[0004] In the patent application number 2010105543646, a desorption device that fills activated carbon between the water vapor pipe and the exhaust pipe is disclosed, which avoids the damage caused by organic matter. Secondary pollution, but it needs to evacuate the recovery device to a vacuum state during desorption, which increases the cost of desorption process and reduces the efficiency of desorption process

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