Novel NiMo Catalysts Supported on Sol-Gel Nanosized HY Zeolite-Alumina Composites for Hydrodesulfurization of Diesel

作     者：Yin Hailiang Liu Xinliang Zhou Tongna Liu Yunqi 

作者机构：Academy of Science & Technology China University of Petroleum (Huadong) Environmental Protection Agency of Dongying State Key Laboratory of Heavy Oil Processing China University of Petroleum (Huadong) 

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

年 卷 期：2019年第21卷第1期

页      面：15-22页

核心收录：

学科分类：0820[工学-石油与天然气工程] 08[工学] 

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 21206197) the Shandong Provincial Natural Science Foundation under Grant 2016GSF117030 the Promotive Research Fund for Excellent Young and Middle-aged Scientists of Shandong Province (BS2013CL021) 

主　　题：NiMo hydrodesulfurization sol-gel 

摘      要：Composite materials(AZ-x) were prepared by mixing the nanosized HY zeolite and γ-Al_2 O_3 using the sol-gel mixing method and were employed as the support for NiMo catalysts(NiMo/AZ-x). These composites and catalysts were characterized by XRD, BET, TPD, TPR, HRTEM and FT-IR spectroscopy. Compared with the NiMo catalyst supported onγ-Al_2 O_3(NiMo/γ-Al_2 O_3), these NiMo/AZ-x catalysts show higher activity in the hydrodesulfurization(HDS) of FCC diesel,and the HDS activity increases with an increasing HY mass content in the composites, provided that the HY mass fraction does not exceed 20%. Compared with γ-Al_2 O_3, the introduction of nanosized HY zeolite can improve the porous structure of the composites,which can benefit the mass transfer of the reactant molecules. Furthermore,the nanosized HY zeolite in the composites can modify their surface properties which would increase the ratio of metal species to be transformed into reducible phase in low temperature region and modify the morphology of the MoS2 phases to form more multi-stacked MoS_2 active phases with increased dispersion of edges and corners of Mo atoms.