Next Article in Journal
Hydrotreatment Followed by Oxidative Desulfurization and Denitrogenation to Attain Low Sulphur and Nitrogen Bitumen Derived Gas Oils
Previous Article in Journal
Acetic Acid/Propionic Acid Conversion on Metal Doped Molybdenum Carbide Catalyst Beads for Catalytic Hot Gas Filtration
Open AccessArticle

Effect of Additives on the Activity of Nickel–Tungsten Sulfide Hydroconversion Catalysts Prepared In Situ from Oil-Soluble Precursors

1
A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences (TIPS RAS), 119991 Moscow, Russia
2
Department of Petroleum Chemistry and Organic Catalysis, Moscow State University, 119991 Moscow, Russia
*
Author to whom correspondence should be addressed.
Catalysts 2018, 8(12), 644; https://doi.org/10.3390/catal8120644
Received: 28 September 2018 / Revised: 29 November 2018 / Accepted: 5 December 2018 / Published: 10 December 2018
(This article belongs to the Section Nanostructured Catalysts)
The nickel–tungsten sulfide catalysts for the hydroconversion of hydrocarbons were prepared from oil-soluble nickel and tungsten precursor compounds in situ with the use of silica, alumina, titania, zeolite Y, and amorphous aluminosilicate as additives in a vacuum gas oil medium. It was found that the catalytic activity in hydrocracking depends on the concentration of acid sites in the resulting catalyst. With the use of oxide additives, the dispersion and the promoter ratio of the in situ formed sulfide particles increased in the order SiO2–Al2O3–TiO2. It was noted that the promoter ratio of sulfide particles obtained with the use of aluminosilicate additives depended on their porous structure peculiarities. The use of titanium dioxide as a catalytic system component made it possible to reach high activity in hydrocracking, hydrodearomatization, and hydrodesulfurization, which was comparable to that of a system based on zeolite Y, a highly acidic component. View Full-Text
Keywords: in situ catalysts; dispersed catalysts; hydroconversion; vacuum gas oil in situ catalysts; dispersed catalysts; hydroconversion; vacuum gas oil
Show Figures

Figure 1

MDPI and ACS Style

Kniazeva, M.; Maximov, A. Effect of Additives on the Activity of Nickel–Tungsten Sulfide Hydroconversion Catalysts Prepared In Situ from Oil-Soluble Precursors. Catalysts 2018, 8, 644.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop