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:
Mar. 24, 2009
Filed:
May. 23, 2002
Christophe Gueret, St. Romain en Gal, FR;
Pierre Marion, Antony, FR;
Cecile Plain, Saint Germain EN Laye, FR;
Jerome Bonnardot, Le Chesnay, FR;
Eric Benazzi, Chatou, FR;
Olivier Martin, Saint Germain EN Laye, FR;
Christophe Gueret, St. Romain en Gal, FR;
Pierre Marion, Antony, FR;
Cecile Plain, Saint Germain EN Laye, FR;
Jerome Bonnardot, Le Chesnay, FR;
Eric Benazzi, Chatou, FR;
Olivier Martin, Saint Germain EN Laye, FR;
Institut Francais du Petrole, Rueil Malmaison Cedex, FR;
Abstract
The invention relates to a process and installation for treating heavy petroleum feedstocks for producing a gas oil fraction that has a sulfur content of less than 50 ppm and most often 10 ppm that includes the following stages: a) mild hydrocracking in a fixed catalyst bed, b) separation from hydrogen sulfide of a distillate fraction that includes a gas oil fraction and a heavier fraction than the gas oil, c) hydrotreatment (including desulfurization) of said distillate fraction, and d) separation of a gas oil fraction with less than 50 ppm of sulfur. Advantageously, the heavy fraction is sent into catalytic cracking. The process preferably operates with make-up hydrogen that is brought to stage c), and very advantageously all of the make-up hydrogen of the process in introduced in stage c).