NDLI: Hydrocracking of vacuum gas oil in the presence of supported nickel-tungsten catalysts

Content Provider	Springer Nature Link
Author	Ivava, A. S. Korneeva, E. V. Bukhtiyarova, G. A. Nuzhdin, A. L. Budneva, A. A. Prosvirin, I. P. Zaikovskii, V. I. skov, A. S.
Copyright Year	2011
Abstract	The supports containing 70% Al$_{2}$O$_{3}$ and 30% β zeolite (AZ-1 and AZ-2), which differed in mixing procedures, and the Ni-W/AZ-1 and Ni-W/AZ-2 catalysts were characterized using an adsorption technique, high-resolution electron microscopy, IR spectroscopy, and X-ray photoelectron spectroscopy and tested in the hydrocracking reaction of vacuum gas oil (VGO). It was found that the supports differed in texture characteristics and surface Lewis acidity at the same composition and similar concentrations of Brønsted acid sites. The formation of Ni-W-S sulfide species on the surfaces of both of the supports occurred in different manners: multilayer Ni-W-S sulfide species were formed on AZ-1 (S $_{sp}$ = 220 m$^{2}$/g), whereas single-layer species were mainly formed on AZ-2 (S $_{sp}$ = 380 m$^{2}$/g). It was found that catalysts containing multilayer Ni-W-S sulfide species, which were characterized by a higher degree of sulfidation, provided a higher yield of diesel fuel upon the hydrocracking of VGO, whereas catalysts containing single-layer Ni-W-S sulfide species were more active in the reactions of VGO hydrodesulfurization and hydrodenitration.
Starting Page	446
Ending Page	458
Page Count	13
File Format	PDF
ISSN	00231584
Journal	Kinetics and Catalysis
Volume Number	52
Issue Number	3
e-ISSN	16083210
Language	English
Publisher	SP MAIK Nauka/Interperiodica
Publisher Date	2011-06-08
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Physical Chemistry Catalysis
Content Type	Text
Resource Type	Article
Subject	Chemistry Catalysis Modeling and Simulation Computer Science Applications

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