Ce （III） Y zeolite was prepared by liquid-phase ion-exchange of NaY with 0.1 mol/L Ce（NO3）3 solution at 100℃ for 4 h. After calcining the resultant Ce （III） Y zeolite at 550 ℃ in air, Ce （IV） Y zeolite was o...Ce （III） Y zeolite was prepared by liquid-phase ion-exchange of NaY with 0.1 mol/L Ce（NO3）3 solution at 100℃ for 4 h. After calcining the resultant Ce （III） Y zeolite at 550 ℃ in air, Ce （IV） Y zeolite was obtained. Desulfurization of FCC gasoline was studied by selective adsorption with Ce （IV） Y zeolite. The results showed that Ce （IV） Y zeolite can remove thiophene via 0-complexation directly, while thiophene and Ce （IV） can form stable chemical bonds （sulfur-metal bonds） that can enhance the capability of Ce （IV） Y zeolite for adsorption of thiophene.展开更多
文摘Ce （III） Y zeolite was prepared by liquid-phase ion-exchange of NaY with 0.1 mol/L Ce（NO3）3 solution at 100℃ for 4 h. After calcining the resultant Ce （III） Y zeolite at 550 ℃ in air, Ce （IV） Y zeolite was obtained. Desulfurization of FCC gasoline was studied by selective adsorption with Ce （IV） Y zeolite. The results showed that Ce （IV） Y zeolite can remove thiophene via 0-complexation directly, while thiophene and Ce （IV） can form stable chemical bonds （sulfur-metal bonds） that can enhance the capability of Ce （IV） Y zeolite for adsorption of thiophene.
