The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 30, 2003
Filed:
Jan. 09, 2003
An-hsiang Wu, Bartlesville, OK (US);
Charles A. Drake, Nowata, OK (US);
Phillips Petroleum Company, Bartlesville, OK (US);
Abstract
A catalyst composition and a process for hydrodealkylating a C + aromatic compound such as, for example, 1,2,4-trimethylbenzene to a C to C aromatic hydrocarbon such as a xylene are disclosed. The composition comprises an alumina, a metal oxide, a phosphorus oxide and optionally, an acid site modifier selected from the group consisting of silicon oxides, sulfur 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 + aromatic compound with the catalyst composition under a condition sufficient to effect the conversion of a C + aromatic compound to a C to C aromatic hydrocarbon.