Hydrotreating of gasoline and diesel oil fractions over modified alumina/zeolite catalysts |
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Authors: | Balga Tuktin Erbolat Zhandarov Nurzhan Nurgaliyev Aliya Tenizbayeva Anatoli Shapovalov |
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Affiliation: | Laboratory of Engine Fuels, D.V. Sokolsky Institute of Fuel, Catalysis and Electrochemistry, Almaty, Kazakhstan |
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Abstract: | This paper deals with hydrotreating of straight-run gasoline (SRG) and diesel oil fractions (DOF) over new Ni (Co) containing alumina/zeolite catalysts, modified by transition metals (W and Mo) with the addition of P and Ce elements. In hydrotreating of the DOF, the CoO-WO3-CAR catalyst has the highest hydrodesulphurization activity that reaches 97.2% at 400?°C, P?=?4MPa and V?=?2h?1. Moreover, increasing of pressure until 5?MPa leads to reducing of the sulfur content up to 0.0007%. The greatest decrease in the pour (?58.9?°C) and the cloud (?56.7?°C) points during the hydrotreating of the DOF is observed using the NiO-MoO3-CAR catalyst. The octane number of SRG after hydrotreating over the NiO-MoO3-CAR catalyst rises up to 88.6. Obtained results clearly show that using synthesized catalysts, motor fuel with Euro-5 standard could be obtained. |
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Keywords: | straight-run gasoline diesel oil fractions hydrotreating desulphurization zeolite |
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