Ce(Ⅲ) Y zeolite was prepared by liquid-phase ion-exchange of NaY with 0.1 mol/L Ce(NO_3)_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. Desulfu...Ce(Ⅲ) Y zeolite was prepared by liquid-phase ion-exchange of NaY with 0.1 mol/L Ce(NO_3)_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■-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(NO_3)_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■-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.
