Study the effect of preparation conditions of activated carbon from palm shell for methane adsorption

摘要

The low-cost activated carbon was prepared from Palm shell an agricultural waste material, by combination of chemical and physical activation with phosphoric acid and CO2, respectively for adsorption of methane. Central composite design (CCD) was applied to study the influence of activation temperature, chemical ratio of phosphoric acid to palm shell and physical activation time on the amount of methane adsorption. A quadratic model was developed for adsorption of methane using Design-Expert software. Physical activation time was found to have the most effect on the methane adsorption capacity of produced activated carbon.