Process for manufacturing and separating from petroleum cuts aromatic hydrocarbons of high purity

US3992465A · kind A · utility

Assignee

• Institut Francais du Petrole des Carburants et Lubricants et Enterprise de Recherches et d'Activities Petroliers Elf · FR

Inventors

• Bernard Juguin · Rueil-Malmaison, FR
• Georges Cohen · Le Pecq, FR
• Paul Mikitenko · Villepreux, FR

Key dates

• Filing date: Jan 2, 1974
• Grant date: Nov 16, 1976
• Expiry date: Jan 2, 1994

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G61/04
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Process for producing aromatic hydrocarbons, particularly benzene and/or toluene from a feed charge containing saturated and unsaturated hydrocarbons, by catalytic treatment of said charge with hydrogen, fractionation of the resulting product to separate a fraction containing benzene and/or toluene, extractive distillation of at least one aromatic hydrocarbon in a column, by means of an extraction solvent from which said hydrocarbon is subsequently separated, and recycling to the reaction zone of at least one portion of the products recovered at the top of said extractive distillation column and containing essentially C.sub.6 and C.sub.7 saturated hydrocarbons.