Production of microporous palm shell based activated carbon for methane adsorption: Modeling and optimization using response surface methodology |
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| Authors: | Arash Arami-Niya Wan Mohd Ashri Wan Daud Farouq S Mjalli Faisal Abnisa Mohammad Saleh Shafeeyan |
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| Affiliation: | 1. Department of Chemical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;2. Petroleum & Chemical Engineering Department, Sultan Qaboos University, Muscat 123, Oman |
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| Abstract: | In this study, the optimization of the palm shell based activated carbon production using combination of chemical and physical activation for methane adsorption is investigated. response surface methodology (RSM) in combination with central composite design (CCD) was used to optimize the operating parameters of the production process. Physical activation temperature, chemical impregnation ratio and physical activation time were chosen as the main process variables and the amount of methane adsorption was selected as the investigated response. Phosphoric acid and carbon dioxide were used as chemical and physical agents, respectively. The optimum reaction conditions were found to be a physical activation temperature of 855 °C, H3PO4 impregnation ratio of 9.42 g of phosphorous per gram palm shell and physical activation time of 135 min. The results exhibited significant increase in methane adsorption after physio-chemical activation. |
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| Keywords: | Palm shell Activated carbon Activation Response surface methodology Methane adsorption |
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