Liquid phase xylene isomerization in the absence of hydrogen
AssigneeUop LLC
InventorsAshish Suresh Bambal, Gregory B. Kuzmanich, Patrick C. Whitchurch
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Abstract
The field of this claimed subject matter generally relates to liquid phase isomerization technology. More specification, the field relates to liquid phase isomerization in complete absence of hydrogen which eliminates the need for gas-liquid separation at the reactor outlet. Even in the absence of the hydrogen, the catalyst demonstrates a stable isomerization performance with a paraxylene to xylene ratio of about 23 wt % in the product stream.
Claims8
A process for the isomerization of an alkylaromatic feed mixture, comprising contacting the alkylaromatic feed mixture in a C8 isomerization zone, wherein the C8 isomerization zone comprises an isomerization stage wherein the alkylaromatic feed mixture contacts a catalyst comprising a UZM-54 zeolite, alumina, and an absence of metals, at isomerization conditions in a liquid phase in the complete absence of hydrogen to produce a product stream.
Dependencies are inferred from the claim text.