Effect of Temperature in Hydrocracking of Light Cycle Oil on a Noble Metal-Supported Catalyst for Fuel Production

A. Gutiérrez, J. M. Arandes, P. Castaño, M. Olazar, A. Barona, J. Bilbao

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Abstract

The effect of temperature has been studied in hydrocracking of light cycle oil (LCO), byproduct of fluidized catalytic cracking (FCC) units on a bifunctional catalyst (Pt-Pd/HY zeolite). The increase in both temperature and H 2 partial pressure have an important attenuating effect on catalyst deactivation, given that they decrease sulfur equilibrium adsorption and enhance hydrocracking of coke precursors. Therefore, the catalyst maintains significant hydrodesulfurization and hydrocracking activity. As the temperature is increased, hydrocracking conversion and naphtha selectivity increase, although there is no significant dearomatization of the medium distillate fraction in the range of the studied experimental conditions. 400°C is the more suitable temperature for obtaining a high yield of naphtha with a high content of i-paraffins. © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
Original languageEnglish (US)
JournalChemical Engineering and Technology
Volume35
Issue number4
DOIs
StatePublished - Apr 1 2012
Externally publishedYes

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