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n-Alkane hydroconversion over carbided molybdena supported on sulfated zirconia

DOI: 10.1007/s13203-011-0004-0

Keywords: n-Alkanes,Chain length,Hydroisomerisation,Hydrocracking,β-Mo2C/SO4 2 –ZrO2

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Abstract:

A carbided molybdena on sulfated zirconia support has been prepared by in situ exposure to a methane/hydrogen mixture at 650 °C and the characteristics established using N2 adsorption and X-ray diffraction. The activity of the catalyst in the hydroconversion of C6 to C9 n-alkanes was investigated in the temperature range 350–450 °C at 1 atm pressure. Activity and selectivity were found to show strong dependence on the choice of n-alkane with reaction rates found to be higher for the shorter alkanes. n-Hexane and n-heptane were hydroisomerised to the corresponding C6 and C7 isomers with high selectivity while the higher alkanes, especially nonane, produced mainly hydrocracking products. The catalyst offers a potential system for the upgrading of light naphtha range paraffins.

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