Adsorption and Desorption of Sulfur Compounds by Improved Nano Adsorbent: Optimization Using Response Surface Methodology

Abstract

Today, sulfur removal from fuels has improved by new adsorbents such as zeolites that needs extensive studies. This study investigates the feasibility of sulfur compounds adsorption on improved nano zeolite existing in organic fuels and desorption of them from nano-adsorbent.Some properties of improved nano zeolite were analyzed to receive better sulfur compounds adsorption. Zeolite surface structure was analyzed by TEM (tunneling electron microscopy). Batch experiments were chosen for adsorption/desorption study of sulfur compounds and adsorption and desorption conditions were optimized by BBD methodology. The influence of variables in the process, consists of adsorbent metal percent (0.05-10 wt%), adsorbent calcination temperature (200-500 °C) and adsorption process temperature (30-120 °C) in adsorption stage and gas flow rate (1.5-3.5 mL/Min), regeneration temperature (150-300 °C) and desorption time (30-90 Min) which were investigated using experimental design procedure.

Keywords

• rsm
• nano zeolite
• adsorption
• regeneration