Investigation on Modification of NaY Zeolite and Its Behaviors in Selective Adsorptive Desulfurization of FCC gasoline  

作　　者：Zhu Heli Song Lijuan Gao Xiang Wang Hongguo Zhang Xiaotong Sun Zhaolin (Liaoning Key Laboratory of Petrochemical Engineering, Liaoning University of Petroleum and Chemical Technology, Fushun 113001) 

出　　处：《China Petroleum Processing & Petrochemical Technology》2009年第1期58-62,共5页中国炼油与石油化工（英文版）

基　　金：the National Natural Sci-ence Foundation of China (No.20476042 and No.20776064) for the financial support.

摘　　要：NaY zeolite was modified with oxalic acid, and Ce(IV)Y(1) zeolite was obtained via liquid phase ion exchange between the modified NaY zeolite and cerium nitrate. The Ce(IV)Y(2) zeolite was obtained via liquid phase ion exchange between NaY zeolite and cerium nitrate. The performance of two Y zeolites [Ce(IV)Y(1) and Ce(IV)Y(2)] was compared through static selective adsorptive desulfurization of FCC gasoline at room temperature and normal pressure. The sulfur compounds and contents of the FCC gasoline were analyzed by microcoulometry and GC-SCD chromatogram. The results showed that the effect of adsorptive desulfurization of FCC gasoline achieved by Ce(IV)Y(1) zeolite was better than that of Ce(IV)Y(2) zeolite. The rate for adsorptive desulfurization of FCC gasoline by Ce(IV)Y(1) zeolite and Ce(IV)Y(2) zeolite was 85.0% and 62.4%, respectively. The Ce(IV)Y(1) zeolite could adsorb DMTs, which could not be adsorbed by Ce(IV)Y(2) zeolite. The rate of regeneration of extruded Ce(IV)Y(1)zeolite was 95.5%.NaY zeolite was modified with oxalic acid, and Ce（IV）Y（1） zeolite was obtained via liquid phase ion exchange between the modified NaY zeolite and cerium nitrate. The Ce（IV）Y（2） zeolite was obtained via liquid phase ion exchange between NaY zeolite and cerium nitrate. The performance of two Y zeolites [Ce（IV）Y（1） and Ce（IV）Y（2）] was compared through static selective adsorptive desulfurization of FCC gasoline at room temperature and normal pressure. The sulfur compounds and contents of the FCC gasoline were analyzed by microcoulometry and GC-SCD chromatogram. The results showed that the effect of adsorptive desulfurization of F CC gasoline achieved by Ce（IV）Y（1） zeolite was better than that of Ce（IV）Y（2） zeolite. The rate for adsorptive desulfurization of FCC gasoline by Ce（IV）Y（1） zeolite and Ce（IV）Y（2） zeolite was 85.0% and 62.4%, respectively. The Ce（IV）Y（1） zeolite could adsorb DMTs, which could not be adsorbed by Ce（IV）Y（2） zeolite. The rate of regeneration of extruded Ce（IV）Y（1）zeolite was 95.5%.

关 键 词：ZEOLITE ion exchange FCC gasoline adsorptive desulfurization DMTs 

分 类 号：TE624.55[石油与天然气工程—油气加工工程]