A continuous and regenerative process for removal and destruction of VOC
from effluents is disclosed. The process employs two fixed bed reactors
in series filled with adsorbent/catalyst. The VOC containing effluent is
passed over the first reactor for adsorbing VOC, while the second
reactor, which is loaded with VOC from the previous cycle is regenerated
with part of the treated gas made up with an appropriate amount of air.
Just before the VOC breakthrough occurs at the first reactor, the roles
of the two reactors are switched. The process is characterized by simple
design, high VOC removal efficiency, no external heat requirement and low
operation cost.