Liquidphase Adsorptionoxidation Of Sulfurcontaining Species By Activated Carbon

R.V.R.A. RIOS, J. SILVESTRE-ALBERO, A. SEPULVEDA-ESCRIBANO, F. RODRIGUEZ-REINOSO*

Laboratorio de Materiales Avanzados, Departamento de Química Inorgánica, Universidad de Alicante, E-03080 Alicante, Spain

Abstract. Liquid phase («-hexene) adsorption of propanethiol on activated carbons is commonly accompanied by surface assisted oxidation processes of propanethiol to dipropyl disulfide (DPDS). In fact, both the porous structure and surface chemistry influence the adsorption/oxidation process. Whereas the porous structure is the main parameter defining the removal kinetics, the surface chemistry affects the extent of propanethiol oxidation and, consequently, the total removal capacity.

Keywords: activated carbon; propanethiol; sulfur removal; porous structure; surface chemistry

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