Process for isomerization of alkylaromatic hydrocarbons

Details Process for isomerization of alkylaromatic hydrocarbons Process for isomerization of alkylaromatic hydrocarbons

1997-05-29

1999-12-28

Griffin, Walter D.

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By isomerization

585480, 502 67, C07C 522, B01J 2906

Patent

active

060084251

ABSTRACT:
A process for isomerizating a feed containing alkylaromatic hydrocarbons, e.g., monocyclic alkylaromatic hydrocarbons and/or bicyclic alkylaromatic hydrocarbons. The process is carried out by contacting the feed under conversion conditions with a zeolite bound zeolite catalyst which comprises first crystals of an intermediate pore size first zeolite and a binder which comprises second crystals of a second zeolite. The process finds particular applications in isomerizing a feed containing ethylbenzene and less than equilibrium amounts of xylenes with ethylbenzene and can produce a product containing above equilibrium quantities of para-xylene and low aromatics ring loss and xylene loss.

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