Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6657237 | Fuel Processing Technology | 2014 | 8 Pages |
Abstract
Nickel- molybdenum and cobalt -nickel- molybdenum catalysts were prepared via impregnation technique, with loadings of 7wt. % Ni; 15 wt.% Mo and 2 wt.% Co, followed by drying at 120 °C, calcination at 450 °C and then sulfidation was performed at 400 °C. The prepared catalysts characterized by X-ray diffraction, temperature-programmed reduction and N2 adsorption -desorption techniques. The catalysts investigated towards hydro-treatment of lubricating base oil. Temperature-programmed reduction results revealed that Ni-Mo has lower support interaction than Co-Ni-Mo/kaolinite catalysts. Catalytic evaluation results displayed that the sulfur and total aromatic contents in the reaction products using Co-Ni-Mo were lower than that on Ni-Mo/kaolinite catalysts at 275 °C. The sulfur in the product decreased from 2400 to 900 ppm (sulfur removal reached 62.5 %) and consequently, the aromatic contents decreased from 13 to 6 wt% on using Co-Ni-Mo catalyst. The produced hydro = treated lubricating base oil can be used as technical white oil according to Egyptian pharmacopeia's tests.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
S. Mikhail, M. Riad,