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 Ni ²⁺and Ce ⁴⁺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.

Refinery dry gas contains a lot of hydrogen sulfide and carbon dioxide. In order to improve the dry gas desulfurization efficiency and the effect of the selective absorption desulfurization, in this paper, the super gravity rotating bed equipment was used as absorption desulfurization reactor instead of traditional absorption tower for experimental research. Rotating speed, absorbent dosage and absorption temperature were researched. The optimum operation parameters is: dry gas flow rate of 4 500 m3/h, the condition of pressure of 0.8 MPa, absorbent dosage of 8 m3/h, rotating speed of 800 r/min, absorption temperature of 40~45 ℃. A better absorption effect can be obtained, and hydrogen sulfide content in dry gas can be controlled to 0.01%, which satisfies the requirement of subsequent sulfur emissions. The results have shown that the shorter the retention time in the reactor is, the better the absorbent selectivity of hydrogen sulfide absorption effect is. Rotating bed reactor can replace traditional absorption tower.