关键词: NiCeY,    , 超声辅助,   ,  吸附脱硫,   ,  二苯并噻吩

Abstract:        NiCeY adsorbents were prepared by liquid-phase-ion-exchange method using ultrasound assisted. The adsorbents were characterized by X-ray diffraction (XRD), N2-dsorption specific surface area measurements (BET) and inductively coupled plasma-atomic emisssion spectroscopy (ICP). With dibenzothiophene /n-nonane/benzene modle oil as feedstock, the effect of NiCeY adsorbent on the desulfurization performance was investigated by static desulfurization experiment. The optimum adsorption conditions of NiCeY were that at room temperature and atmospheric pressure, the NiCeY adsorbent and the simulated oil mass ratio of 1∶20, the adsorption time of 5 h, the adsorption capacity of dibenzothiophene was up to 10.83 mg/g. The desulfurization performance of the adsorbent was studied by using the fixed bed dynamic desulfurization experiment. It was found that the synergistic effect of Ni²⁺and Ce⁴⁺not only had the high sulfur adsorption capacity but also had the ability of resistance to aromatics. At the same time, NiCeY adsorbent had good regeneration performance.