Abstract
Pine nut shell is as raw material for preparation of high surface area activated carbon (HSAAC) by microwave induced KOH activation. The effects of microwave power, activation duration and KOH/C mass rate (R) on the iodine adsorption capability and activated carbon yield were investigated. Additionally the surface characteristics of HSAAC were characterized by nitrogen adsorption isotherms and SEM The operating variables were optimized utilizing the response surface methodology and were identified microwave power 738W, activation duration 17 min, and R 4, corresponding to a yield of 46.28 % and an iodine number of 2154 mg/g. The key pore structure parameters of HSAAC such as the Brunauer-Emmett-Teller (BET) surface area and total pore volume were estimated to be 3819 m2/g and 2.09 mL/g, respectively. The findings strongly support the feasibility of microwave heating for preparation of HSAAC from spent pine nut shell by microwave induced KOH activation.
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Liao, X. et al. (2016). Utilization of Pine Nut Shell for Preparation of High Surface Area Activated Carbon by Microwave Heating and KOH Activation. In: Hwang, JY., et al. 7th International Symposium on High-Temperature Metallurgical Processing. Springer, Cham. https://doi.org/10.1007/978-3-319-48093-0_7
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DOI: https://doi.org/10.1007/978-3-319-48093-0_7
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-48617-8
Online ISBN: 978-3-319-48093-0
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