Patent ID: 7525008

Claim:
A process for converting ethylbenzene to xylenes and isomerizing xylene in a feed stream comprising ethylbenzene and a non-equilibrium mixture of one or more xylenes comprising contacting the feed stream with a catalyst comprising MTW type zeolite having a silica/alumina mole ratio of between about 20:1 and 45:1, from about 0.1 to about 2 wt-% of a platinum-group component calculated on an elemental basis, and from about 0.01 to about 5 wt-% of a tin component calculated on an elemental basis, under isomerization conditions said conditions including the presence of hydrogen in a mole ratio to hydrocarbon of at least about 0.5:1 said feed stream comprising between about 1 and 60 mass-% ethylbenzene and 2 to 20 mass-% naphthenes, to provide a conversion product.