Processes and apparatuses for Olefin saturation in an aromatics complex

A process for producing benzene and para-xylene from a reformate stream, wherein the process comprises:

• a) separating the reformate stream to provide a first stream comprising C4 and lighter hydrocarbons and a second stream comprising aromatic hydrocarbons;
• b) providing the second stream to a reformate splitter to provide a reformate bottoms stream comprising C8+ aromatic hydrocarbons and a reformate overhead stream comprising C7− aromatic hydrocarbons;
• c) passing the reformate overhead stream to an aromatics extraction unit to provide an aromatics extract stream comprising benzene and toluene and a raffinate stream comprising non-aromatic hydrocarbons;
• d) passing the aromatics extract stream to a benzene column to forming a benzene-enriched stream and a benzene column bottoms stream, and passing the benzene column bottoms stream to a toluene column forming a toluene-enriched stream and a toluene column bottoms stream, and recovering the benzene-enriched stream and the toluene-enriched stream;
• e) passing the reformate bottoms stream and one of the first stream and the raffinate stream 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;
• f) passing the olefin treated reformate stream to an olefin product stripper column to a provide an overhead raffinate product stream and a bottoms stripper stream;
• and
• g) recovering para-xylene from the bottoms stripper streams.