Process and apparatuses for producing benzene and para-xylene from a reformate stream is provided. The process comprises separating the reformate stream to provide a first stream comprising C.sub.4 and lighter hydrocarbons and a second stream comprising aromatic hydrocarbons. The second steam is provided to a reformate splitter to provide a reformate bottoms stream comprising C.sub.8+ aromatic hydrocarbons and a reformate overhead stream comprising C.sub.7 aromatic hydrocarbons. The reformate overhead stream is passed to an aromatics extraction unit to provide an aromatics extract stream comprising benzene and toluene and a raffinate stream comprising non-aromatic hydrocarbons. The reformate bottoms stream and one of the first stream and the raffinate stream is passed to an olefin reduction zone, wherein the reformate bottoms stream and one of the first stream and the raffinate stream are contacted with an olefin saturation catalyst under olefin saturation conditions to produce an olefin-treated reformate stream.

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).

Process and apparatuses for producing benzene and para-xylene from a reformate stream is provided. The process comprises separating the reformate stream to provide a first stream comprising C.sub.4 and lighter hydrocarbons and a second stream comprising aromatic hydrocarbons. The second steam is provided to a reformate splitter to provide a reformate bottoms stream comprising C.sub.8+ aromatic hydrocarbons and a reformate overhead stream comprising C.sub.7 aromatic hydrocarbons. The reformate overhead stream is passed to an aromatics extraction unit to provide an aromatics extract stream comprising benzene and toluene and a raffinate stream comprising non-aromatic hydrocarbons. The reformate bottoms stream and one of the first stream and the raffinate stream is passed to an olefin reduction zone, wherein the reformate bottoms stream and one of the first stream and the raffinate stream are contacted with an olefin saturation catalyst under olefin saturation conditions to produce an olefin-treated reformate stream.