Catalytic properties of pure and Ni doped niobium sulfide catalysts for hydrodesulfurization

The catalytic properties of non-applied nickel-sulfide catalysts in the reactions of hydrogenation and hydrodesulphurization of coal tar from the coal semi-coking of the Shubarkul field (Republic of Kazakhstan) were studied to obtain data necessary for the intensification of the resin processing technology, increasing the yield and improving the quality of the resulting needle coke. As a feedstock, the resin was used without preliminary dehydration (water content 3.4 %) and distillation in a mixture with the prepared catalyst and the residue of distillation with boiling point above 320°C of oil from the Kumkol field (Republic of Kazakhstan), taken in a mass ratio of 1:1.

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Catalytic Properties of Ni-Mo Carbide and Nitride Phases Supported on SBA-15 and -16 in the Hydrodesulfurization of DBT

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.132.111 ◽

2010 ◽

Vol 132 ◽

pp. 111-125 ◽

Cited By ~ 1

Author(s):

Edgar Caleb Aguillón-Martínez ◽

José Aarón Melo-Banda ◽

L.A. Guevara ◽

T.A. Reyes ◽

C.E. Ramos Galván ◽

...

Keyword(s):

Mesoporous Materials ◽

Catalytic Properties ◽

Sulfide Catalysts ◽

Principal Product ◽

Oxide Phases ◽

Xrd Patterns

In this paper, the incorporation of carbide and nitride phases supported on mesoporous materials like SBA type is described in order to obtain a better material than commercial catalysts (NiMoS/Al2O3, Sg=269 m2.gr-1) specifically in the HDS of dibenzothiophene. The XRD patterns exhibit the presence of carbide and nitride phases in each series, respectively. In the nitride materials, the presence of oxide phases was more evident than in the carbide catalysts. The principal product was biphenyl (BF) for all the analyzed series. This behavior suggests that the DBT desulphurization pathway for the carbide materials was similar to that of sulfide catalysts. Bicyclohexyl (BCH) was analyzed as a product, and cyclohexylbenzene traces (CHB) were determined in a single catalyst (NiMoC-2%P/SBA-16). This was attributed to the hydrogenation character of carbide catalyst reported previously.

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Catalytic properties of CoMo/Al2O3 sulfide catalysts in the hydrorefining of straight-run diesel fraction mixed with rapeseed oil

Kinetics and Catalysis ◽

10.1134/s0023158414040144 ◽

2014 ◽

Vol 55 (4) ◽

pp. 481-491 ◽

Cited By ~ 12

Author(s):

E. N. Vlasova ◽

I. V. Deliy ◽

A. L. Nuzhdin ◽

P. V. Aleksandrov ◽

E. Yu. Gerasimov ◽

...

Keyword(s):

Rapeseed Oil ◽

Catalytic Properties ◽

Diesel Fraction ◽

Sulfide Catalysts

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Enhancement of the catalytic properties of NiMo and CoMo alumina-supported sulfide catalysts by addition of ruthenium sulfide dispersed in Y zeolites

Applied Catalysis A General ◽

10.1016/0926-860x(94)00273-8 ◽

1995 ◽

Vol 124 (1) ◽

pp. 153-164 ◽

Cited By ~ 19

Author(s):

V. Kougionas ◽

M. Cattenot ◽

J.L. Zotin ◽

J.L. Portefaix ◽

M. Breysse

Keyword(s):

Catalytic Properties ◽

Sulfide Catalysts ◽

Y Zeolites ◽

Ruthenium Sulfide

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Preparation and Catalytic Properties of Highly Dispersed Molybdenum and Cobalt-Molybdenum Sulfide Catalysts Supported on Alumina

Industrial & Engineering Chemistry Research ◽

10.1021/ie00038a005 ◽

1995 ◽

Vol 34 (11) ◽

pp. 3703-3712 ◽

Cited By ~ 18

Author(s):

Yasuaki Okamoto ◽

Mitsuhiro Odawara ◽

Hiroyuki Onimatsu ◽

Toshinobu Imanaka

Keyword(s):

Catalytic Properties ◽

Molybdenum Sulfide ◽

Sulfide Catalysts ◽

Highly Dispersed

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Effect of Mono-, Di-, and Triethylene Glycol on the Activity of Phosphate-Doped NiMo/Al2O3 Hydrotreating Catalysts

Catalysts ◽

10.3390/catal9010096 ◽

2019 ◽

Vol 9 (1) ◽

pp. 96 ◽

Cited By ~ 4

Author(s):

Alexey Nuzhdin ◽

Galina Bukhtiyarova ◽

Aleksander Porsin ◽

Igor Prosvirin ◽

Irina Deliy ◽

...

Keyword(s):

Photoelectron Spectroscopy ◽

Catalytic Properties ◽

Triethylene Glycol ◽

Sulfide Catalysts ◽

Gas Oil ◽

N2 Adsorption ◽

X Ray ◽

Transmission Electron ◽

Al2o3 Catalyst ◽

Impregnation Solution

The effect of glycols on the catalytic properties of phosphate-doped NiMo/Al2O3 catalysts in the hydrotreating of straight-run gas oil (SRGO) was studied. The NiMo(P)/Al2O3 catalysts were prepared using ethylene glycol (EG), diethylene glycol (DEG), and triethylene glycol (TEG) as additives. The organic agent was introduced into the aqueous impregnation solution obtained by the dissolving of MoO3 in H3PO4 solution, followed by Ni(OH)2 addition. The Raman and UV–Vis studies show that the impregnation solution contains diphosphopentamolybdate HxP2Mo5O23(6−x)− and Ni(H2O)62+, and that these ions are not affected by the presence of glycols. When the impregnation solution comes in contact with the γ-Al2O3 surface, HxP2Mo5O23(6−x)− is decomposed completely. The catalysts were characterized by Raman spectroscopy, low-temperature N2 adsorption, X-ray photoelectron spectroscopy, and transmission electron microscopy. It is shown that the sulfide catalysts prepared with glycols display higher activity in the hydrotreating of straight-run gas oil than the NiMoP/Al2O3 catalyst prepared without the additive. The hydrodesulfurization and hydrodenitrogenation activities depend on the glycol type and are decreased in the following order: NiMoP-DEG/Al2O3 > NiMoP-EG/Al2O3 > NiMoP-TEG/Al2O3 > NiMoP/Al2O3. The higher activity of NiMoP-DEG/Al2O3 can be explained with the higher dispersion of molybdenum on the surface of the catalyst in the sulfide state.

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