Synthesis, Characterization, and Evaluation of Activated Carbon Spheres for Removal of Dibenzothiophene from Model Diesel Fuel

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• 作者：Changming Zhang ; Wen Song ; Guohua Sun ; Lijing Xie ; Liu Wan ; Jianlong Wang ; Kaixi Li
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2014
• 出版时间：March 19, 2014
• 年：2014
• 卷：53
• 期：11
• 页码：4271-4276
• 全文大小：338K
• 年卷期：v.53,no.11(March 19, 2014)
• ISSN：1520-5045

文摘

Activated carbon spheres (ACSs) with high surface area and different porous structure were prepared from the fundamental chemical materials, 3-methylphenol and formaldehyde, by suspension polymerization and steam activation. The effects of two organic additives, ethylene glycol and poly(ethylene glycol), to the textural structure and adsorptive dibenzothiophene (DBT) of ACSs were investigated. The pyrolysis behavior of the resin spheres (RSs) was characterized by thermal gravimetric analysis. The texture properties of the obtained ACSs were characterized by N₂ adsorption鈥揹esorption and scanning electron microscope (SEM) techniques. The as-prepared ACSs reached a Brunauer鈥揈mmet鈥揟eller (BET) surface area value as high as 1501 m²/g and a total pore volume of 0.72 cm³/g. The BET surface areas and pore volumes increased after adding two organic additives. The adsorptive capacity of DBT for model oil had a good linear correlation with the volume of small micropores (0.6 鈭?.2 nm).