Numerical modeling and experimental study of VOC adsorption by Pistachio shell based activated carbon
Volume Title: 1
Department of Chemical Engineering, Faculty of Engineering, Vali-E-Asr University of Rafsanjan, Rafsanjan, Iran
The adsorption of benzene vapor, as VOC component, from inert gas (N2) by activated carbon was studied experimentally in the isothermal fixed bed reactor at various operating conditions. The activated carbon that used in this study had Pistachio shell base with high surface area. The saturated adsorption capacities of benzene on activated carbon was measured. In addition, a mathematical model for adsorption in a fixed bed reactor was proposed in this study. The model results had good agreement with experimental data. In order to demonstrate the effects of operating conditions on adsorption and breakthrough carve, the experimental tests and simulation runs were carried out at various gas flow rate, temperature and benzene concentration. The results shown that with increase the VOC concentration and increase the gas flow rate, the total time of adsorption was decreased and breakthrough point appeared earlier.