META-XYLENE PRODUCTION PROCESS

In a process for producing meta-xylene, a hydrocarbon feedstream comprising at least 5 wt.% ethylbenzene and at least 20 wt.% meta-xylene is contacted with a molecular sieve catalyst under ethylbenzene conversion conditions sufficient to provide a primary product stream depleted of more than 50 % of...

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Hauptverfasser:	HELLRING, STUART DAMON, STERN, DAVID LAWRENCE
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY
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creator	HELLRING, STUART DAMON STERN, DAVID LAWRENCE
description	In a process for producing meta-xylene, a hydrocarbon feedstream comprising at least 5 wt.% ethylbenzene and at least 20 wt.% meta-xylene is contacted with a molecular sieve catalyst under ethylbenzene conversion conditions sufficient to provide a primary product stream depleted of more than 50 % of the ethylbenzene present in the feedstream. The primary product stream is then stripped benzene and/or toluene by-products to provide a secondary product stream comprising at least 75 wt.% mixed ortho-xylene and meta-xylene. The secondary product stream is then split to remove substantially all of the ortho-xylene present therein to provide a tertiary product stream comprising at least 95 wt.% meta-xylene.
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The primary product stream is then stripped benzene and/or toluene by-products to provide a secondary product stream comprising at least 75 wt.% mixed ortho-xylene and meta-xylene. 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subjects	ACYCLIC OR CARBOCYCLIC COMPOUNDS APPARATUS THEREFOR CHEMISTRY GENERAL METHODS OF ORGANIC CHEMISTRY METALLURGY ORGANIC CHEMISTRY
title	META-XYLENE PRODUCTION PROCESS
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