期刊
FUEL
卷 89, 期 2, 页码 365-371出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2009.08.013
关键词
Desulfurization; Activated carbon; Adsorption; Dibenzothiophene; Fuel oil
资金
- New Energy and Industrial Technology Development Organization (NEDO) of Japan
The adsorption behavior of dibenzothiophene (DBT) on an activated carbon fiber (ACF) and a granular coconut-shell activated carbon (GCSAC) in the solvents n-hexane, n-decane, toluene, and mixture of n-decane and toluene was investigated. The DBT adsorption onto both samples was more active in n-hexane than in n-decane. The lowest DBT adsorption was observed in toluene. Regardless of the type of activated carbons and solvents, all the isotherms fit the Freundlich equation better than the Langmuir equation. At low equilibrium concentrations of <2 mass ppm-S, GCSAC displayed greater capacity for DBT adsorption than did ACF in all the tested solvents. The adsorption kinetics of ACF and GCSAC in all the tested solvents were governed by a pseudo-second-order model. (c) 2009 Elsevier Ltd. All rights reserved.
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