Vacuum drying active carbon waste gas management process and vacuum drying active carbon waste gas management apparatus

Abstract

The present invention provides a vacuum drying active carbon waste gas management process and a vacuum drying active carbon waste gas management apparatus. The vacuum drying active carbon waste gas management process is characterized by comprising a pre-treatment stage, an adsorption stage, a desorption and recovery stage, and a drying stage. The apparatus comprises an adsorber and a condenser, wherein the adsorber comprises an organic waste gas inlet, a steam inlet, a desorption outlet, a drying outlet, a clean gas outlet, a fire fighting nitrogen inlet and active carbon fibers, and the active carbon fibers are arranged inside the adsorber. According to the present invention, the design is reasonable, the adsorption effect is high, and the standard discharge is ensured; and during the active carbon fiber drying regeneration, the vacuum drying way is used and is different from the wind sucking drying of the fan in the prior art, such that the water which can not be blown out by the fan and retained in the active carbon fibers can be effectively removed, the drying efficiency is extremely high, the drying time is short, and the electricity consumption is less so as to save the management cost, reduce the time consuming of the whole process, and improve the waste gas management efficiency.

Description

technical field [0001] The invention relates to the recovery of organic waste gas, in particular to a vacuum-drying activated carbon waste gas treatment process and its device, which is more conducive to the adsorption and treatment of waste gas containing organic components by activated carbon fiber adsorbers, so as to achieve emission reduction and standard discharge. Background technique [0002] At present, the process of organic waste gas treatment by activated carbon fiber adsorption method is mostly as follows: firstly, the organic waste gas is pretreated, pressure adjusted, and temperature adjusted, and then adsorbed by activated carbon fiber adsorber, desorbed by steam heating and dried by drying fan, and the desorbed oil gas is condensed The liquid mixture (or liquid oil) is condensed into a liquid mixture (or liquid oil) and recovered, and the clean gas after adsorption is discharged at high altitude, so as to achieve the purpose of emission reduction a...

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Problems solved by technology

If a centrifugal fan is used for drying after desorption, the activated carbon fiber adsorption core has not been dried well, and there is still a lot of moisture on the adsorption core that cannot be blown out (unless the drying time of the fan is prolonged), the existence of moisture will affect the re-adsorption of the activated carbon fiber If the adsorbed gas can be discharged up to the standard, the drying time of the fan must be extended, but this will increase the power consumption of the device, and the economic operation cost and equipment investment cost are higher.

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