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. 18, 2008
Filed:
Jan. 22, 2003
Patrick Briot, Pommier de Beaurepaire, FR;
Pierre Boucot, Ternay, FR;
Alain Forestiere, Vernaison, FR;
Nathalie Marchal-george, Saint Genis Laval, FR;
Florent Picard, Saint Symphorien D'Ozon, FR;
Patrick Briot, Pommier de Beaurepaire, FR;
Pierre Boucot, Ternay, FR;
Alain Forestiere, Vernaison, FR;
Nathalie Marchal-George, Saint Genis Laval, FR;
Florent Picard, Saint Symphorien D'Ozon, FR;
Institut Francais du Petrole, Rueil Malmaison Cedex, FR;
Abstract
Process for desulfurization of an effluent for cracking or steam-cracking hydrocarbons, more particularly a gasoline for example for catalytic cracking that comprises the elimination of thiophenic compounds by alkylation of these compounds, followed by a distillation, a hydrocracking of said alkyl-thiophenic compounds, then a hydrodesulfurization of the effluent that is obtained from the hydrocracking zone. In a preferred embodiment, this process comprises a preliminary stage for separating the cracking or steam-cracking effluent into three fractions, and proposes sending to the alkylation stage only the intermediate fraction that is low in heavy basic nitrogen-containing compounds that are initially present in the effluents that are to be alkylated.