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HYDRODEAROMATIZATION OF GAS OIL FRACTIONS ON Pt-Pd/USY CATALYST

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Author(s): Gábor Nagy | Jenő Hancsók | Zoltán Varga | György Pölczmann | Dénes Kalló

Journal: Petroleum and Coal
ISSN 1337-7027

Volume: 49;
Issue: 2;
Start page: 24;
Date: 2007;
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Keywords: Hydrodearomatization | gas oil | Pt-Pd/USY | cetane index | cetane number | nitrogen content

ABSTRACT
Beside the reduction of sulphur content in diesel fuels, aromatics reduction is also relevant, because it contributes to the increase of cetane number and to be abatement of exhaust gas emissions, mainly hydrocarbons (HC) and particulate matter (PM). The aim of present study was to identify and quantify the key process parameters for hydrodearomatization of prehydrogenated gas oil fractions on Pt-Pd/USY zeolite catalysts. The effect of key process parameters (temperature, pressure, LHSV, H2-to-hydrocarbon ratio) on the yield and quality of products was investigated. Additionally, the effect of the reduction of aromatic content on the main properties of gas oils (density, refractive index, cetane number etc.) was also studied.
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