Disclosed herein is an improved method for making and obtaining
para-xylene from a mixture of xylene isomers, and various embodiments of
the method. The method generally includes contacting a mixture comprising
xylene isomers and ethylbenzene with a para-xylene selective adsorbent to
obtain a para-xylene depleted raffinate, and a desorption effluent
comprising a para-xylene enriched product. The method also includes
isomerizing the para-xylene depleted raffinate. The contacting step is
carried out in a manner such that the raffinate need not be pressurized
prior to isomerization, thus advantageously obviating expensive
compression steps.