Process for separating ethylbenzene from feedstream containing m

Details Process for separating ethylbenzene from feedstream containing m Process for separating ethylbenzene from feedstream containing m

1987-05-04

1988-10-18

Caldarola, Glenn

Chemistry of hydrocarbon compounds

Purification, separation, or recovery

By contact with solid sorbent

208310Z, B01D 5304

Patent

active

047789468

ABSTRACT:
Ethylbenzene is separated from a paraxylene depleted feedstream containing meta-xylene by contacting the feedstream with a K-substituted Type Y zeolite, passing through the zeolite a selected desorbent, and recovering a stream enhanced in concentration of ethylbenzene relative to meta-xylene. Preferably, the desorbent is an aromatic hydrocarbon.
The zeolite may contain an effective amount up to 10% by weight of total water and up to about 4% by weight methanol.

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