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利用超声辅助液相离子交换法制备Cu(Ⅰ)Y、CeY、Cu(Ⅰ)CeY吸附剂,利用XRD、BET、ICP和FT-IR技术对吸附剂进行表征。考察了Cu(Ⅰ)CeY吸附剂的制备条件及其对吸附脱硫性能的影响。Cu(Ⅰ)CeY吸附剂的最佳制备条件为:离子交换6 h,焙烧温度为500℃,Cu/Ce物质的量比为1∶1。常温常压下Cu(Ⅰ)CeY吸附剂与模拟油质量比为1∶30,吸附时间为6 h,Cu(Ⅰ)CeY吸附剂对噻吩的脱硫率高达95.2%。通过考察芳烃存在下竞争吸附对脱硫性能的影响发现,Cu(Ⅰ)CeY吸附剂中Cu、Ce离子的协同作用使吸附剂兼具有高的吸附硫容和抗芳烃竞争吸附能力,且Cu(Ⅰ)CeY吸附剂具有良好的再生性能。
The Cu (Ⅰ) Y, CeY, Cu (Ⅰ) CeY adsorbents were prepared by ultrasonic assisted liquid-phase ion exchange. The adsorbents were characterized by XRD, BET, ICP and FT-IR. The preparation conditions of Cu (Ⅰ) CeY adsorbent and their effects on the adsorption desulfurization performance were investigated. The optimal preparation conditions of Cu (Ⅰ) CeY adsorbent were as follows: ion exchange 6 h, calcination temperature 500 ℃, Cu / Ce ratio 1: 1. The mass ratio of Cu (Ⅰ) CeY adsorbent to simulated oil was 1:30 at room temperature and pressure, and the adsorption time was 6 h. The desulfurization rate of thiophene was 95.2% for Cu (Ⅰ) CeY adsorbent. The effect of competitive adsorption on the desulfurization performance in the presence of arene found that the synergistic effect of Cu and Ce ions on the Cu (Ⅰ) CeY adsorbent has the advantages of both high adsorption capacity and anti-aromatics adsorption capacity, and the adsorption capacity of Cu Ⅰ) CeY adsorbent has good regeneration performance.