Conversions of hexanes on alumina-rhodium catalyst

A study ofthe influence of the catalyst preparation method and composition on the activity and selectivity of Rh/Al/sub 2/O/sub 3/ in the conversion of certain alkanes is reported; chemisorption and thermal desorption characteristics have been obtained for Rh catalysts of different genesis. The catalytic, structural, and adsorption properties of the alumina-rhodium catalysts investigated are determined by their genesis. On the alumina-rhodium catalyst obtained by decomposition of ((CH/sub 3/)/sub 2/S)/sub 3/RhBr/sub 3/, heterogenized on Al/sub 2/O/sub 3/, reactions that are typical for platinum-group metals take place: C/sub 5/-dehydrocyclization, skeletal isomerization, dehydroisomerization, and others.