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. 23, 2008
Filed:
Jun. 26, 2002
Vincenzo Calemma, San Donato Milanese, IT;
Silvia Guanziroli, Monza, IT;
Silvia Pavoni, Pioltello, IT;
Roberto Giardino, Besate, IT;
Vincenzo Calemma, San Donato Milanese, IT;
Silvia Guanziroli, Monza, IT;
Silvia Pavoni, Pioltello, IT;
Roberto Giardino, Besate, IT;
ENI S.p.A., Rome, IT;
Enitecnologie S.p.A., San Donato Milanese, IT;
Institut Francais du Petrole, Rueil-Malmaison, FR;
Abstract
A process with an increased efficiency for the preparation of middle distillates with excellent properties at low temperatures and substantially without oxygenated organic compounds, starting from a synthetic mixture of hydrocarbons at least partly waxy, containing a fraction of alcohols, comprising the separation of the mixture into a low-boiling fraction and a high-boiling fraction; the subsequent hydrogenation of the low-boiling fraction under such conditions as to avoid any substantial variation in its average molecular weight; the joining of at least a part of the hydrogenated fraction with said high-boiling fraction, and the subsequent catalytic hydrocracking treatment of the mixture of hydrocarbons thug formed, to obtain a substantial conversion of the waxy part into middle distillate.