Catalyst treatment useful for aromatics conversion process

Details Catalyst treatment useful for aromatics conversion process Catalyst treatment useful for aromatics conversion process

2008-07-01

2008-07-01

Wood, Elizabeth D. (Department: 1793)

Catalyst, solid sorbent, or support therefor: product or process

Zeolite or clay, including gallium analogs

And additional al or si containing component

C502S064000, C502S066000, C502S067000, C502S068000, C502S071000, C502S073000, C502S074000, C502S077000, C502S078000, C502S320000

Reexamination Certificate

active

07393805

ABSTRACT:
A process for preparing a transalkylation catalyst, the catalyst itself, and a transalkylation process for using the catalyst are herein disclosed. The catalyst comprises rhenium metal on a solid-acid support such as mordenite, which has been treated with a sulfur-based agent. Such treatment reduces the amount of methane produced by metal hydrogenolysis in a transalkylation process wherein heavy aromatics like A9+ are reacted with toluene to produce xylenes. Reduced methane production relative to total light ends gas production results in lower hydrogen consumption and lower reactor exotherms.

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http://www.zeolyst.com/html/mord.asp.

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