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Vol. 26 No. 9 (2014): Vol 26 Issue 9

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Adsorptive Removal of Thiophenic Sulfur Compounds Over Ag-Loaded Spherical Activated Carbon

https://doi.org/10.14233/ajchem.2014.15746
Wenxiu Li
Liaoning Provincial Key Laboratory of Chemical Separation Technology, Shenyang University of Chemical Technology, Shenyang 110142, P.R. China
Xiangle Sun
Liaoning Provincial Key Laboratory of Chemical Separation Technology, Shenyang University of Chemical Technology, Shenyang 110142, P.R. China
Jungang Fan
Liaoning Provincial Key Laboratory of Chemical Separation Technology, Shenyang University of Chemical Technology, Shenyang 110142, P.R. China
Anlei Cui
Liaoning Provincial Key Laboratory of Chemical Separation Technology, Shenyang University of Chemical Technology, Shenyang 110142, P.R. China
Yanyan Ma
Liaoning Provincial Key Laboratory of Chemical Separation Technology, Shenyang University of Chemical Technology, Shenyang 110142, P.R. China
Zhigang Zhang
Liaoning Provincial Key Laboratory of Chemical Separation Technology, Shenyang University of Chemical Technology, Shenyang 110142, P.R. China

Corresponding Author(s) : Zhigang Zhang

zhzhgang@126.com

Asian Journal of Chemistry, Vol. 26 No. 9 (2014): Vol 26 Issue 9

Abstract

Silver-loaded spherical activated carbon (Ag-SAC) was synthesized by liquid phase ion exchange using phenolic weak acid cation exchange resin, carbonization and activation with CO2. The adsorptive capacity and selectivity of Ag-SAC for thiophene (T), 3-methylthiophene (3-MT) and 2,5-dimethylthiophene (2,5-DMT) were investigated by the fixed bed adsorption experiments under ambient conditions. The results showed that the saturation capacities of Ag-SAC for T, 3-MT and 2,5-DMT were 0.733, 0.925 and 1.143 mg-S/g-A, respectively and the adsorptive selectivity of the adsorbent for different sulfur compounds followed the order: 2,5-DMT > 3-MT > T. The effects of toluene and cyclohexene on the adsorptive performance were also studied. The results indicated that the presence of toluene and cyclohexene led to a reduction of total saturation capacity by 57 and 33 %, respectively.

Keywords

Adsorptive desulfurization Adsorptive selectivity Ag-loaded Spherical activated carbon Thiophenic sulfur compounds
Li, W., Sun, X., Fan, J., Cui, A., Ma, Y., & Zhang, Z. (2014). Adsorptive Removal of Thiophenic Sulfur Compounds Over Ag-Loaded Spherical Activated Carbon. Asian Journal of Chemistry, 26(9), 2588–2592. https://doi.org/10.14233/ajchem.2014.15746
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