Abstract: The invention relates to a production and separation device and method wherein: a reforming effluent (40) is produced and fractionated in a separation unit (1) and a fractionation train (5-6-7) for extracting benzene (22), toluene (23), xylenes (24) and C9-10 aromatics; aromatics are extracted from a feedstock (41) in a liquid-liquid extraction unit (14) to produce a first raffinate (43) and a first extract (42), the first extract (42) being sent to a benzene-toluene fractionation device (5); the xylenes are separated in a xylene separation unit (10) to produce a second extract (31) containing para-xylene, and a second raffinate (32) containing ortho-xylene and meta-xylene; and the second raffinate is isomerised in an isomerisation unit (11) so as to produce an isomerate (34) enriched in para-xylene sent to a fractionation train (5-6-7).

Abstract: The present invention relates to a process and a device for the treatment and separation of aromatic compounds starting from a gasoline feedstock, comprising the following stages/units: selective hydrogenation (A) of the gasoline feedstock (1) in the presence of hydrogen (2) in order to produce a selective hydrogenation effluent (3); fractionation (B) of the selective hydrogenation effluent (3) in order to produce at least a C5? cut (4) containing compounds having 5 or less carbon atoms and a C6+ cut (5) containing compounds having at least 6 carbon atoms; hydrogenation (C) of the C6+ cut (5) in order to produce a hydrogenation effluent (6); extraction of the aromatics (D) from the hydrogenation effluent (6) in order to produce at least an aromatic stream (17) concentrated in aromatic compounds and a raffinate (10) concentrated in non-aromatic compounds, with respect to the composition of the hydrogenation effluent (6).