Chemistry of hydrocarbon compounds – Aromatic compound synthesis – By dealkylation
Patent
1996-08-29
1998-02-03
Caldarola, Glenn
Chemistry of hydrocarbon compounds
Aromatic compound synthesis
By dealkylation
585489, 585483, 585486, C07C 412
Patent
active
057146608
ABSTRACT:
A catalyst composition and a process for hydrodealkylating a C.sub.9 + aromatic compound such as, for example, 1,2,4-trimethylbenzene to a C.sub.6 to C.sub.8 aromatic hydrocarbon such as a xylene are disclosed. The composition comprises an alumina, a metal oxide, and an acid site modifier selected from the group consisting of silicon oxides, phosphorus oxides, boron oxides, magnesium oxides, tin oxides, titanium oxides, zirconium oxides, molybdenum oxides, germanium oxides, indium oxides, lanthanum oxides, cesium oxides, and combinations of any two or more thereof. The process comprises contacting a fluid which comprises a C.sub.9 + aromatic compound with the catalyst composition under a condition sufficient to effect the conversion of a C.sub.9 + aromatic compound to a C.sub.6 to C.sub.8 aromatic hydrocarbon.
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Drake Charles A.
Melton Ralph J.
Wu An-hsiang
Caldarola Glenn
Dang Thuan D.
Phillips Petroleum Company
Shay Lucas K.
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