Reactive Adsorption Desulfurization of Thiophene in n-hexane over oxides Adsorbent of NiO-ZnO/Al_2O_3-SiO_2

摘要

The oxides adsorbent of NiO-ZnO/-Al_2O_3-SiO_2 was prepared by co-precipitation method. SEM, XRD and BET studies were performed to understand the structural properties of the adsorbent. And the adsorbent can be used for the desulfurization of thiophene in n-hexane as model gasoline. Removal rate of thiophene increased with increasing reaction time. Removal rate of thiophene in equilibrium decreases with increasing the initial concentration of thiophene. The extent of adsorption in adsorbent increased with increasing the initial concentration of thiophene. The removal rate of thiophene increases with increasing reaction temperature, it showed that the desulfurization is a chemical process not a physical process.