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:
May. 01, 2012
Filed:
Aug. 02, 2007
Vittorio Arca, Chioggia, IT;
Angelo Boscolo Boscoletto, Sottomarina, IT;
Pierluigi Crocetta, Padua, IT;
Vittorio Arca, Chioggia, IT;
Angelo Boscolo Boscoletto, Sottomarina, IT;
Pierluigi Crocetta, Padua, IT;
Polimeri Europa S.p.A., San Donato Milanese, IT;
Abstract
Process for the catalytic hydrodealkylation alone of hydrocarbon compositions comprising C-Calkylaromatic compounds mixed with C-Caliphatic and cycloaliphatic products which, under the reaction conditions, undergo aromati-zation and subsequent hydrodealkylation, which comprises treating said hydrocarbon compositions in continuous and in the presence of hydrogen, with a catalyst consisting of a ZSM-5 zeolite, as such or in bound form, wherein the Si/Al molar ratio in the ZSM-5 ranges from 5 to 100, modified by means of the platinum-molybdenum couple, at a temperature ranging from 400 to 650° C., a pressure ranging from 2 to 4 MPa and H/feedstock molar ratio ranging from 3 to 6. The presence of organic compounds containing heteroatoms such as sulphur, nitrogen or oxygen in the feedstock does not at all alter the performances of the catalyst according to the process object of the invention.