Reaction of Pentane and 2-Methylbutane over Solid Super Acids Prepared by Different Conditions

Article abstract of DOI:10.1246/bcsj.53.1807

The reaction of pentane to 2-methylbutane was carried out at 0 deg C over solid super acid catalysts which were prepared by treatment of various metal oxides with SbF5 under different conditions, and the preparation conditions that affect the catalytic behavior of the catalyst were examined.Among the different base metal oxides, TiO2-ZrO2 became the most active catalyst when treated with SbF5.The maximum conversion to 2-methylbutane which appeared in the reaction of pentane was high when a base metal oxide was treated with SbF5 at a low temperature, and also when the reaction temperature was low.At the maximum conversion, the selectivity of the catalysts for the skeletal isomerization was almost 100percent.As the reaction of pentane proceeded, the catalytic activity for the skeletal isomerization to 2-methylbutane was decreased but that for the formation of 2-methylpropane from 2-methylbutane was increased.The reaction mechanism is briefly discussed.