Adsorption kinetics of dibenzofuran on activated carbon
活性炭吸附二苯并呋喃的动力学

A gravimetric method was adopted to calculate the adsorption isotherm and kinetic curves of dibenzofuran with Norit RB1 and Monolith activated carbon. The kinetic curves were fitted by solid phase diffusion model to calculate the mass transfer coefficient and diffusion coefficient. The effects of bulk gas concentration, adsorption temperature and initial solid phase concentration on the diffusion coefficient were also analyzed. The results showed that the isotherm data were well fitted by the Langmuir equation under the studied conditions. The adsorption rate of dibenzofuran on the Norit RB1 and Monolith activated carbon was mainly controlled by solid surface diffusion. The higher the adsorption temperature was, the larger the mass diffusion coefficient was. The effects of bulk gas concentration and solid concentration of dibenzofuran on diffusion coefficient were very small.