Hydrotreatment of Athabasca bitumen derived gas oil over nickel-molybdenum, nickel-tungsten, and cobalt-molybdenum catalysts

1993 ◽  
Vol 32 (7) ◽  
pp. 1354-1358 ◽  
Author(s):  
Rafael A. Diaz-Real ◽  
Ranveer S. Mann ◽  
Inderjet S. Sambi
Keyword(s):  
Gas Oil ◽  
Athabasca Bitumen ◽  
Molybdenum Catalysts ◽  
Nickel Tungsten

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

Catalysts ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 644 ◽  
Author(s):  
Mariia Kniazeva ◽  
Anton Maximov
Keyword(s):  
Zeolite Y ◽  
Acid Sites ◽  
System Component ◽  
Gas Oil ◽  
Tungsten Sulfide ◽  
Silica Alumina ◽  
Acidic Component ◽  
Amorphous Aluminosilicate ◽  
Nickel Tungsten

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.

Molybdenum area and hydrogenation and hydrogenolytic activities of hydrorefining catalysts

1983 ◽  
Vol 48 (6) ◽  
pp. 1703-1709 ◽  
Author(s):  
Rafael López ◽  
Miloš Kraus
Keyword(s):  
Hydrogenation Activity ◽  
Oxygen Chemisorption ◽  
Molybdenum Catalysts ◽  
Reduced Forms ◽  
Nickel Tungsten

A series of nickel or cobalt promoted molybdenum catalysts and one nickel-tungsten catalyst have been studied by oxygen chemisorption on reduced oxidic samples, by activities of oxidic and sulphided samples for 1-hexene hydrogenation and by activities of sulphided samples for benzothiophen and pyridine hydrogenolyses. A good correlation was obtained between oxygen chemisorption and hydrogenation activity on oxidic, partially reduced, forms of the catalysts, and a limited correlation for activities of sulphided forms. Parallel activities for hydrogenation and hydrogenolyses were observed.

Silica-alumina based nickel-molybdenum catalysts for vacuum gas oil hydrocracking aimed at a higher diesel fraction yield

2014 ◽  
Vol 6 (3) ◽  
pp. 231-238 ◽  
Author(s):  
P. P. Dik ◽  
O. V. Klimov ◽  
S. V. Budukva ◽  
K. A. Leonova ◽  
V. Yu. Pereyma ◽  
...  
Keyword(s):  
Diesel Fraction ◽  
Vacuum Gas Oil ◽  
Gas Oil ◽  
Silica Alumina ◽  
Molybdenum Catalysts ◽  
Fraction Yield

Hydrofining of heavy vacuum gas oil on modified alumina-nickel-molybdenum catalysts

2012 ◽  
Vol 52 (4) ◽  
pp. 233-239 ◽  
Author(s):  
N. A. Pleshakova ◽  
I. I. Zanozina ◽  
O. E. Shabalina ◽  
E. N. Rokhman’ko ◽  
T. V. Mishustina
Keyword(s):  
Vacuum Gas Oil ◽  
Gas Oil ◽  
Modified Alumina ◽  
Molybdenum Catalysts ◽  
Heavy Vacuum Gas Oil

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

2011 ◽  
Vol 52 (3) ◽  
pp. 446-458 ◽  
Author(s):  
A. S. Ivanova ◽  
E. V. Korneeva ◽  
G. A. Bukhtiyarova ◽  
A. L. Nuzhdin ◽  
A. A. Budneva ◽  
...  
Keyword(s):  
Vacuum Gas Oil ◽  
Gas Oil ◽  
Tungsten Catalysts ◽  
Nickel Tungsten

Resistant nitrogen compounds in hydrotreated gas oil from Athabasca bitumen

1991 ◽  
Vol 5 (6) ◽  
pp. 791-795 ◽  
Author(s):  
Paula L. Jokuty ◽  
Murray R. Gray
Keyword(s):  
Nitrogen Compounds ◽  
Gas Oil ◽  
Athabasca Bitumen
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