Patent ID: 9416072
Filing Date: 2016-08-16
CPC Classification: C07C

Claim Text:
1. A process comprising: (i) contacting an aromatic hydrocarbon feedstream comprising benzene and/or toluene with methanol and/or dimethyl ether in the presence of a phosphorus-modified ZSM-5 alkylation catalyst, which has been steamed at a temperature of at least 950° C., to obtain a first product stream comprising greater than about 24 wt % para-xylene and styrene; and (ii) contacting said first product stream comprising greater than about 24 wt % para-xylene and styrene with a hydrogenation catalyst comprising at least one metal selected from Groups 8-10 of the Periodic Table, in the presence of hydrogen, to obtain a second product stream comprising a reduced amount of styrene when compared with said first product stream, wherein less than 0.2 wt % of paraxylene is isomerized by contact with the hydrogenation catalyst.