US 7,566,810 B2
	Xylene production processes employing rhenium-containing catalysts
Edwin P. Boldingh, Arlington Heights, Ill. (US); Antoine Negiz, Wilmette, Ill. (US); James E. Rekoske, Glenview, Ill. (US); Eric J. Baker, Romeoville, Ill. (US); Robert B. Larson, Lisle, Ill. (US); Terrence E. Deak, Chicago, Ill. (US); and Sergey V. Gurevich, San Mateo, Calif. (US)
Assigned to UOP LLC, Des Plaines, Ill. (US)
Filed on Aug. 23, 2007, as Appl. No. 11/843,718.
Claims priority of provisional application 60/825306, filed on Sep. 12, 2006.
Claims priority of provisional application 60/825313, filed on Sep. 12, 2006.
Prior Publication US 2008/0064910 A1, Mar. 13, 2008
This patent is subject to a terminal disclaimer.
Int. Cl. C07C 6/12 (2006.01)

U.S. Cl. 585—475

20 Claims

1. A process for producing xylene, the process comprising: contacting a feed stream comprising an aromatic hydrocarbon having at least seven carbon atoms with a catalyst at aromatic conversion conditions including the presence of hydrogen comprising at least one of a transalkylation reaction, disproportionation reaction, and isomerization reaction and producing a product stream having an increased concentration of xylene relative to the feedstream wherein the catalyst comprises a mordenite component; an acidic MFI molecular sieve component having a Si/Al2 molar ratio of less than about 40; a rhenium component ranging from about 0.05 to about 5 mass percent of the catalyst; and a rhenium-dispersing binder.