Process for isomerizing non-equilibrium xylene-containing...

Details Process for isomerizing non-equilibrium xylene-containing... Process for isomerizing non-equilibrium xylene-containing...

2007-11-20

2007-11-20

Dang, Thuan Dinh (Department: 1764)

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By isomerization

C585S482000, C585S480000

Reexamination Certificate

active

11226493

ABSTRACT:
Reduced co-production of toluene and C9and higher aromatics such as trimethylbenzene, methylethylbenzene, and diethylbenzene is achieved in processes for the isomerization of xylenes to close to equilibrium using a layered catalyst having a thin outer layer of molecular sieve and hydrogenation metal component on a core, wherein at least about 75 mass-% of the hydrogenation metal component is in the outer layer.

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