Combined Promoting Effects of Specific Organic Functional Groups and Alumina Surface Characteristics for the Design of a Highly Efficient NiMo/Al_(2)O_(3) Hydrodesulfurization Catalyst

作     者：Li Huifeng Li Mingfeng Zhang Le Wang Wei Nie Hong Li Huifeng;Li Mingfeng;Zhang Le;Wang Wei;Nie Hong

作者机构：National Energy R&D Center of Petroleum Refining TechnologySINOPEC Research Institute of Petroleum Processing Co.Ltd.Beijing 100083China 

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

年 卷 期：2024年第26卷第1期

页      面：1-11页

核心收录：

学科分类：0820[工学-石油与天然气工程] 081705[工学-工业催化] 0817[工学-化学工程与技术] 08[工学] 

基　　金：funding of the National Key Research and Development Plan(Grant 2017YFB0306600) the Project of SINOPEC(NO.117006) 

主　　题：alumina Mo equilibrium adsorption capacity organic functional groups metal-support interaction hydrodesulfurization 

摘      要：To prepare a highly efficient NiMo/Al_(2)O_(3) hydrodesulfurization catalyst,the combined effects of specific organic functional groups and alumina surface characteristics were ***,the correlation between the surface characteristics of four different alumina and the existing Mo species states was *** was found that the Mo equilibrium adsorption capacity can be used as a specific descriptor to quantitatively evaluate the changes in surface characteristics of different alumina.A lower Mo equilibrium adsorption capacity for alumina means weaker metal-support interaction and the loaded Mo species are easier to transform into ***,the Mo-O-Al bonds still exist at the metal-support *** introduction of cationic surfactant hecadecyl trimethyl ammonium bromide(CTAB)can further improve Mo species dispersion through electrostatic attraction with Mo anions and interaction of its alkyl chain with the alumina surface;meanwhile,the introduction of ethylenediamine tetraacetic acid(EDTA)can complex with Ni ions to enhance the Ni-promoting effect on ***,the NiMo catalyst designed using alumina with lower Mo equilibrium adsorption capacity and the simultaneous addition of EDTA and CTAB exhibits the highest hydrodesulfurization activity for 4,6-dimethyl dibenzothiophene because of its proper metal-support interaction and more well-dispersed Ni-Mo-S active phases.