KINETICS OF STYRENE ADSORPTON BY ACTIVATE D CARBON-FIBERS

Styren, a volatile organic compound (VOC) can be reduced by adsorption . The use of activated carbons fibers requires prior study of the equi librium and kinetics of the adsorption process. Thus, firstly, equilib rium models were used to determine the adsorption capacity of the test ed fibers. This showed up the performance of the tissue and enabled an approach to the nature of interactions. Later, a study was carried ou t, of the influence of the stirring and the concentration on the two s teps of the adsorption, external diffusion (k(f)) and superficial diff usion (D-s). A kinetic model based on the superficial diffusion (D-s) was proposed. At high rate of stirring and concentration, the superfic ial diffusion are predominent and the model corresponds to the result of the experiments.