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US 2019/0169096 A1Published application
Processes and apparatuses for methylation of aromatics in an aromatics complex
AssigneeUop LLC
InventorsNaiyl A. Rashid, Gregory B. Kuzmanich
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Abstract
This present disclosure relates to processes and apparatuses for methylation of aromatics in an aromatics complex for producing a xylene isomer product. More specifically, the present disclosure relates to processes and apparatuses for producing para-xylene by the selective methylation of toluene and/or benzene in an aromatics complex using processed toluene instead of crude toluene.
Claims16
A process for the methylation of toluene, comprising:
- passing a processed toluene stream and a methanol feed stream to a toluene methylation reaction zone to produce a toluene methylation reaction zone product stream;
- passing a stream comprising crude A7 and unextracted toluene and an overhead stream from a heavy aromatics column to a transalkylation reaction zone to produce a transalkyation product stream;
- and
- passing the toluene methylation reaction zone product stream and the transalkyation product stream to a benzene column.
1 more element
An apparatus for the methylation of toluene, comprising:
- a line comprising processed toluene from the toluene column in direct communication with a toluene methylation reaction zone, a line comprising methanol in direct communication with the toluene methylation zone, wherein the reaction zone is also coupled to a line comprising the reaction zone product stream;
Dependencies are inferred from the claim text.