Patent ID: 8273934
Filing Date: 2012-09-25
Classification: C07C

Abstract:
1. A process for producing a PX-rich product, the process comprising: (a) separating a feedstock containing C (b) separating a first portion of the C (c) isomerizing at least a portion of the first raffinate stream to produce a first isomerized stream having a higher PX concentration than the first raffinate stream; (d) separating a second portion of the C (e) isomerizing, at least partially in the liquid phase, at least a portion of the second raffinate stream to produce a second isomerized stream having a higher PX concentration than the second raffinate stream, where the second isomerized stream has a benzene concentration of less than 300 ppm and a C (f) recovering at least a portion of at least one of the first and second PX-rich streams as PX-rich product by selective adsorption; and (g) providing at least a portion of the first isomerized stream and at least a portion of the second isomerized stream to the separating (a).