Canadian Journal of Chemical Engineering, Vol.82, No.1, 194-197, 2004
Removal of VOCs by sorption in fixed beds of popcorn
Popcorn was the sorbent in a fixed-bed study on removing VOC contaminants from air. Acetone, toluene, and trichloroethylene were selected as model VOCs to represent industrial solvents with diverse properties. Other variables studied were the inlet VOC concentration and pre-treatment of the popcorn. Inlet and outlet concentrations were monitored by gas chromatography. The Wheeler equation satisfactorily correlated the breakthrough times of the model VOCs. Because of its low specific surface, popcorn is unlikely to replace activated carbon as a sorbent for VOCs.