【摘要】 用NaY沸石制备了负载二元金属Ni和Ce的NiCeY燃料油脱硫吸附剂,并通过静态吸附实验考察了NiCeY沸石对模拟燃油中二苯并噻吩(DBT)的吸附性能。结果表明,在正辛烷/DBT体系中,NiCeY对DBT的吸附平衡时间为2 h;剂油比对脱硫率有明显影响,剂油比为0.1 g/mL时脱硫率达100%。在正辛烷/DBT/环己烯体系中,吸附剂对DBT吸附量的大小顺序为:NaY<NiY<CeY<NiCeY。NiCeY沸石对DBT的选择性吸附能力最强,是实际应用中更有效的脱硫吸附剂。更多还原

【Abstract】 The NiCeY zeolite adsorbent,for desulfurization of fuel oil,was prepared by NaY zeolites loaded with Ni and Ce ions simultaneously.The adsorption properties of NiCeY for dibenzothiophene(DBT) were studied with a batch method in a model fuel.Results reveal that it takes two hours for NiCeY to absorb DBT at a balanced level;the removal of DBT was obviously influenced by the absorbent/oil ratio,when the absorbent/oil ratio was increased to 0.1 g/mL,the removal efficiency of DBT was increased to 100 percent.In the system of n-octane/DBT/cyclohexene,the absorption capacities of different absorbents to DBT are show as(orderly): NaY<NiY<CeY<NiCeY.The sulfur selective adsorption capacity of NiCeY is the highest of the four,meaning that NiCeY is more effective in desulfurization of fuel oil in practical application.更多还原