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1. (WO2018067280) PROCESS FOR PRODUCING PARAXYLENE BY METHYLATION OF BENZENE AND/OR TOLUENE

Pub. No.:    WO/2018/067280    International Application No.:    PCT/US2017/051175
Publication Date: Fri Apr 13 01:59:59 CEST 2018 International Filing Date: Wed Sep 13 01:59:59 CEST 2017
IPC: C07C 2/86
C07C 15/08
B01J 29/70
B01J 8/02
Applicants: EXXONMOBIL CHEMICAL PATENTS INC.
Inventors: CHEN, Tan-Jen
WASHBURN, Seth, M.
Title: PROCESS FOR PRODUCING PARAXYLENE BY METHYLATION OF BENZENE AND/OR TOLUENE
Abstract:
A process is described for producing paraxylene, in which an aromatic hydrocarbon feedstock comprising benzene and/or toluene is contacted with an alkylating reagent comprising methanol and/or dimethyl ether in an alkylation reaction zone under alkylation conditions in the presence of an alkylation catalyst to produce an alkylated aromatic product comprising xylenes. The alkylation catalyst comprises a molecular sieve having a Constraint Index ≤5, and the alkylation conditions comprise a temperature less than 500°C. Paraxylene may then be recovered from the alkylated aromatic product.