Regeneration device for activated carbon for adsorbing organic waste gas and method thereof

Abstract

The invention relates to a regeneration device for activated carbon for adsorbing organic waste gas and a method thereof. The regeneration device comprises an activated carbon regeneration unit, a waste gas treatment unit and a gas exhaust unit in sequence from left to right, wherein the three units are connected in sequence in a running-through manner; the activated carbon regeneration unit comprises a drying fan, a steam blowing-off machine, an activated carbon fixation box and a first gas accumulation cover; the waste gas treatment unit comprises a waste gas accumulation pipe, a condenser, a condensed fluid collection tank, a centrifugal fan, a waste gas collection pipe, an air centrifugal fan, a mixing chamber, a combustion chamber, an ignition device and a second gas accumulation cover; the gas exhaust unit comprises a gas accumulation pipe, a heat exchanger, a centrifugal fan and a gas exhaust pipe. The regeneration device is reasonable in structure, convenient to use, high in treatment efficiency and advanced and scientific in method; by utilizing a low-temperature heating regeneration method, the blowing off is carried out by using steam at 100 to 200 DEG C to regenerate carbon; the influence of a conventional high-temperature heating regeneration method on a matrix of the activated carbon is avoided; the waste gas generated in a regeneration process is treated by adopting a direct combustion method and the secondary pollution to an environment is avoided.

Description

technical field [0001] The invention relates to the field of resource processing, recovery and reuse, in particular to a regeneration device and method for activated carbon used to adsorb organic waste gas. Background technique [0002] Organic waste gas is a common pollutant discharged in the production process of many industrial enterprises, such as petroleum, light industry, food, chemical industry, etc. If it is discharged directly without effective treatment, it will seriously pollute the environment. Activated carbon adsorption is the most used method for treating organic waste gas, but as the adsorption process progresses, more and more pollutants are enriched on the surface of activated carbon, and the adsorption performance will gradually decrease until the activated carbon is completely saturated. If the activated carbon after adsorption saturation is not regenerated, it must be discarded, and the discarded activated carbon will cause secondary pollution to the env...

AI Technical Summary

Problems solved by technology

Activated carbon adsorption is the most used method for treating organic waste gas, but as the adsorption process progresses, more and more pollutants are enriched on the surface of activated carbon, and the adsorption performance will gradually decrease until the activated carbon is completely saturated.

If the activated carbon after adsorption saturation is not regenerated, it must be discarded, and the discarded activated carbon will cause secondary pollution to the environment, and at the same time increase the cost of adsorption operation

[0003] Prior to the present invention, the activated carbon adsorbed to a saturated state was regenerated after being treated under certain conditions, which could reduce the waste of resources, but there were defects in the destruction of the activated carbon matrix by the traditional high-temperature heating regeneration method and the organic waste gas generated by regeneration without treatment.

The traditional high-temperature heating regeneration method is usually heated at a high temperature of 850°C, which often causes the carbon particles to stick to each other, sinter into agglomerates, and cause local fires, etc., and even cause system operation to be paralyzed

If the organic waste gas generated during the regeneration of activated carbon is not treated, it will also cause serious pollution to the environment and seriously affect people's physical and mental health.

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