Preparation of Cu-,Zn-,Co-Zeolites and Application for Adsorptive Desulfurization of Saudi Arabian Medium Crude

作     者：Song Linhua Wang Zi Yan Yixuan LüBaoxiu Wu Pingping Zhao Xiaodong Liu Dong 

作者机构：College of ScienceChina University of Petroleum(East China)Qingdao 266580 School of PharmacyLanzhou UniversityLanzhou 730030 State Key Laboratory of Heavy Oil ProcessingChina University of Petroleum(East China)Qingdao 266580 

出 版 物：《China Petroleum Processing & Petrochemical Technology》 (中国炼油与石油化工（英文版）)

年 卷 期：2017年第19卷第3期

页      面：23-31页

核心收录：

学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术] 

基　　金：the financial support of the King Abdulaziz City for Science and Technology(KACST)(Grant N1204068) the Natural Science Foundation of Shandong province of China(ZR2016BM29) 

主　　题：desulfurization zeolites adsorption crude oil sulfur compounds 

摘      要：A series of Cu(II)-, Zn(II)-, Co(II)-loaded zeolites were successfully prepared by liquid phase ion-exchange method and characterized by X-ray diffraction(XRD), N2-adsorption specific surface area measurement(BET), X-ray fluorescence(XRF), and scanning electron microscopy(SEM) techniques. The adsorptive desulfurization performance of different adsorbents for treating Saudi Arabian medium crude oil was investigated, and the results showed that desulfurization efficiency declined in the following order: Zn(II)X Cu(II)Y Co(II)X Cu(II)X Co(II)Y Zn(II)Y. The best desulfurization efficiency of 41.01% was achieved by using Zn(II)X as the adsorbent under the optimized *** desulfurization performance of Zn(II)X in different distillates showed that a better performance was obtained in heavy petroleum fractions. Furthermore, the distribution of sulfur compounds in distillates after desulfurization was analyzed and the results showed that the adsorbent Zn(II)X could preferably adsorb aromatic sulfides such as thiophenes,benzothiophenes, and dibenzothiophenes. These results suggested that the π-complexation between zinc ions and sulfides would be crucial to the excellent desulfurization efficiency of Zn(II)X. In addition, the used adsorbent could be regenerated by heating at 700 °C in air, and around 84% of desulfurization capacity was recovered after the first cycle of regeneration.