Hydrodesulfurization of Different Feeds on CoMo/Al2O3 Catalyst Prepared Using Cobalt Heteropolyoxomolybdate

2008 ◽  
Vol 73 (8-9) ◽  
pp. 983-999 ◽  
Author(s):  
Alla Spojakina ◽  
Květuše Jirátová ◽  
Václav Novák ◽  
Radostina Palcheva ◽  
Luděk Kaluža
Keyword(s):  
Physicochemical Properties ◽  
Gas Oil ◽  
Reaction Conditions ◽  
Alumina Support ◽  
Hds Catalysts ◽  
Light Gas Oil ◽  
Al2o3 Catalyst

CoMo/Al2O3 catalyst prepared by impregnation of alumina support with cobalt heteropolyoxomolybdate was tested in hydrodesulfurization (HDS) of thiophene, 1-benzothiophene, or light gas oil under various reaction conditions and reactor arrangements. Its physicochemical properties are also examined. The obtained data are compared with those of two industrial HDS catalysts.

scholarly journals The Effect of the Reaction Conditions on the Properties of Products from Co-hydrotreating of Rapeseed Oil and Petroleum Middle Distillates

Catalysts ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 442
Author(s):  
Petr Straka ◽  
Josef Blažek ◽  
Daria Toullis ◽  
Tomáš Ihnát ◽  
Pavel Šimáček
Keyword(s):  
Reaction Temperature ◽  
Rapeseed Oil ◽  
Space Velocity ◽  
Gas Oil ◽  
Reaction Conditions ◽  
Total Conversion ◽  
Hydrogen Flow ◽  
Weight Hourly Space Velocity ◽  
Middle Distillates ◽  
Al2o3 Catalyst

This study compares the hydrotreating of the mixture of petroleum middle distillates and the same mixture containing 20 wt % of rapeseed oil. We also study the effect of the temperature and the weight hourly space velocity (WHSV) on the co-hydrotreating of gas oil and rapeseed oil mixture. The hydrotreating is performed over a commercial hydrotreating Ni-Mo/Al2O3 catalyst at temperatures of ca. 320, 330, 340, and 350 °C with a WHSV of 0.5, 1.0, 1.5, and 2.0 h−1 under a pressure of 4 MPa and at a constant hydrogen flow of 28 dm3·h−1. The total conversion of the rapeseed oil is achieved under all the tested reaction conditions. The content of the aromatic hydrocarbons in the products reached a minimum at the lowest reaction temperature and WHSV. The content of sulphur in the products did not exceed 10 mg∙kg−1 at the reaction temperature of 350 °C and a WHSV of 1.0 h−1 and WHSV of 0.5 h−1 regardless of the reaction temperature. Our results show that in the hydrotreating of the feedstock containing rapeseed oil, a large amount of hydrogen is consumed for the dearomatisation of the fossil part and the saturation of the double bonds in the rapeseed oil and its hydrodeoxygenation.

Preparation and Evaluation of Skeletal Cobalt-Molybdenum Hydrodesulfurization Catalysts

1995 ◽  
Vol 60 (4) ◽  
pp. 568-575
Author(s):  
Karel Sporka ◽  
Jiří Hanika ◽  
Vladimír Jůn
Keyword(s):  
Aqueous Solutions ◽  
Active Component ◽  
Catalyst Activity ◽  
Gas Oil ◽  
Gamma Alumina ◽  
Molybdenum Sulfides ◽  
Hydrodesulfurization Catalysts ◽  
Hds Catalysts ◽  
Kinetics Of ◽  
Preparation And Evaluation

Preparation of skeletal Co-Mo catalysts by controlled impregnation of aluminosilicate skeletons containing deposited gamma-alumina with aqueous solutions of active component precursors has been investigated. The activity of the laboratory catalysts in gas oil hydrodesulfurization has been determined. Kinetics of impregnation of skeletal supports, the effect of their type, and the dependence of catalyst activity on the content of cobalt and molybdenum sulfides are reported. HDS skeletal catalysts prepared were compared with the extruded types. It was found that skeletal HDS catalysts show the higher activity (related to the content of alumina and Co-Mo sulfides) than the extruded ones due to the less significant effect of internal diffusion. However, if the activity is related to the same volume of catalyst bed, the activity of skeletal catalysts is only one fourth of that of the extruded types.

Hydrotreating of heavy gas oil using CoMo/γ-Al2O3 catalyst prepared by equilibrium deposition filtration

Fuel ◽  
2010 ◽  
Vol 89 (11) ◽  
pp. 3193-3206 ◽  
Author(s):  
F.Y.A. El Kady ◽  
M.G. Abd El Wahed ◽  
S. Shaban ◽  
A.O. Abo El Naga
Keyword(s):  
Gas Oil ◽  
Heavy Gas Oil ◽  
Heavy Gas ◽  
Al2o3 Catalyst

Extraction of light gas oil from catalytic cracking with alkylcarbamate

1971 ◽  
Vol 7 (3) ◽  
pp. 187-191
Author(s):  
T. P. Vishnyakova ◽  
V. V. Zamanov ◽  
G. S. Kaganer ◽  
A. A. Drichko ◽  
A. I. Mezhlumova ◽  
...  
Keyword(s):  
Catalytic Cracking ◽  
Gas Oil ◽  
Light Gas Oil

Effect of chemical modification on oligomerization capacity of alumina support for Pd-Al2O3 catalyst

2011 ◽  
Vol 84 (8) ◽  
pp. 1385-1393 ◽  
Author(s):  
A. A. Lamberov ◽  
I. F. Khalilov ◽  
I. R. IL’yasov ◽  
A. Sh. Bikmurzin ◽  
V. M. Shatilov ◽  
...  
Keyword(s):  
Chemical Modification ◽  
Alumina Support ◽  
Al2o3 Catalyst

Hydrotreatment of Cracked Light Gas Oil*

2018 ◽  
pp. 145-180
Author(s):  
R. Galiasso ◽  
W. Garcia ◽  
M. M. Ramirez De Agudelo ◽  
P. Andreu
Keyword(s):  
Gas Oil ◽  
Light Gas Oil

scholarly journals Conversion of sulphur compounds into light gas oil: I. Kinetics of the conversion of model compounds

2002 ◽  
Vol 56 (2) ◽  
pp. 68-75
Author(s):  
Jasna Jankovic ◽  
Dejan Skala
Keyword(s):  
Chemical Industry ◽  
Heterocyclic Compounds ◽  
Published Data ◽  
Gas Oil ◽  
Model Compounds ◽  
Sulphur Compounds ◽  
Middle Fraction ◽  
Light Gas Oil ◽  
Reactor Calculation ◽  
Kinetics Of

The problem of sulfur compounds conversion, particularly heterocyclic compounds, from the middle fraction of crude oil (light gas oil) was analyzed and will be published in several articles in the Chemical Industry Journal. Published data in the literature, covering the conversion of tiophene, benzothiophene and dibenzothiophene are presented in the first paper of this series with the goal of comparing and critically analyzing their usage for reactor calculation.

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