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. 25, 2010
Filed:
Feb. 08, 2005
Vittorio Arca, Chioggia-Venezia, IT;
Angelo Boscolo Boscoletto, Sottomarina-Venezia, IT;
Vittorio Arca, Chioggia-Venezia, IT;
Angelo Boscolo Boscoletto, Sottomarina-Venezia, IT;
Polimeri Europa S.p.A., Brindisi, IT;
Abstract
Process for the catalytic hydrodealkylation alone of hydrocarbon compositions comprising C-Calkylaromatic compounds, optionally in a mixture with C-Caliphatic and cycloaliphatic products, including the treatment in continuous of said hydrocarbon compositions, in the presence of water, with a catalyst consisting of a ZSM-5 zeolite as such or in bound form, wherein the molar ratio Si/Al in the ZSM-5 ranges from 5 to 35, modified with at least one metal selected from those belonging to groups IIB, VIB and VIII, at a temperature ranging from 400 to 700° C., a pressure of between 2 and 4 MPa, a molar ratio between water and the charge in the feed to the reactor ranging from 0.0006 to 0.16 (i.e. between 0.01 and 2.5% w/w) and a molar ratio H/charge of between 3 and 6.