Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By isomerization
Patent
1986-09-03
1988-02-02
Davis, Curtis R.
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
By isomerization
585477, 585481, C07C 522
Patent
active
047230509
ABSTRACT:
Process for the isomerization of a xylene feedstock employing a silicalite catalyst. A xylene feedstock containing a mixture of xylene isomers and ethylbenzene is passed to a reaction zone containing the silicalite catalyst. Para-xylene is present in the feedstock in less than an equilibrium amount, and ethylbenzene is present in a concentration greater than the para-xylene concentration. Hydrogen and/or water are also supplied to the reaction zone. The reaction zone is operated under conditions to effect isomerization of xylene isomers to provide an increased para-xylene content, and disproportionation of ethylbenzene to provide a decreased ethylbenzene content.
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Butler James R.
Menard Kevin P.
Abokhair John K.
Cheairs M. Norwood
Cosden Technology, Inc.
Davis Curtis R.
Jackson William D.
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