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. 13, 2008
Filed:
Dec. 13, 2001
Eric Benazzi, Chatou, FR;
Nathalie Marchal-george, Saint Genis Laval, FR;
Tivadar Cseri, Courbevoie, FR;
Pierre Marion, Antony, FR;
Christophe Gueret, St Romain cn Gal, FR;
Slavik Kasztelan, Rueil Malmaison, FR;
Eric Benazzi, Chatou, FR;
Nathalie Marchal-George, Saint Genis Laval, FR;
Tivadar Cseri, Courbevoie, FR;
Pierre Marion, Antony, FR;
Christophe Gueret, St Romain cn Gal, FR;
Slavik Kasztelan, Rueil Malmaison, FR;
Institut Francáis du Petrole, Rueil Malmaison Cedex, FR;
Abstract
A process for production of very high-quality base oils, and simultaneous production of high-quality middle distillates, comprises the successive stages of hydroisomerization and catalytic dewaxing. The hydroisomerization takes place in the presence of a catalyst containing at least one noble metal deposited on an amorphous acid support, the metal dispersion being less than 20%. The support is preferably an amorphous silica-alumina. The catalytic dewaxing takes place in the presence of a catalyst containing at least one hydrodehydrogenating element (Group VIII) and at least one molecular sieve chosen from ZBM-30, EU-2, and EU-11.