Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By alkyl or aryl transfer between molecules – e.g.,...
Reexamination Certificate
2005-12-06
2005-12-06
Dang, Thuan D (Department: 1764)
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
By alkyl or aryl transfer between molecules, e.g.,...
Reexamination Certificate
active
06972348
ABSTRACT:
A catalyst, and a process for using the catalyst, that effectively converts and transalkylates indane and C10and heavier polycyclic aromatics into C8aromatics is herein disclosed. The catalyst comprises a solid-acid support such as mordenite plus a metal component such as rhenium. The catalyst provides excellent conversion of such heavy aromatic species as naphthalene, which is also observed by a decrease in the ending-boiling-point of a hydrocarbon stream passed over the catalyst. The same catalyst is also effective for transalkylation of lighter aromatics, thus yielding a valuable xylenes product stream out of the process.
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Boldingh Edwin P.
Maher Gregory F.
Modica Frank S.
Negiz Antoine
Dang Thuan D
Maas Maryann
Paschall James C.
Tolomei John G.
UOP LLC
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