Aromatics production process

In a process for producing para-xylene, at least one feed comprising C6+ aromatic hydrocarbons is supplied to a dividing wall distillation column to separate the feed into a C7- aromatic hydrocarbon-containing stream, a C8 aromatic hydrocarbon-containing stream and a C9+ aromatic hydrocarbon-containing stream. At least part of the C8 aromatic hydrocarbon- containing stream is then supplied to a para-xylene recovery unit to recover para-xylene from the C8 aromatic hydrocarbon-containing stream and produce a para-xylene depleted stream. The para-xylene depleted stream is contacted with a xyleneisomerization catalyst in a xylene isomerization zone under conditions effective to isomerize xylenes in the para- xylene depleted stream and produce an isomerized stream, which is then at least partially recycled to the para-xylene recovery unit. 在用于制备对二甲苯的方法中，将至少一种包含C芳族烃的原料供应到间壁蒸馏塔以将原料分离成含C芳族烃的料流、含C芳族烃的料流和含C芳族烃的料流。然后将至少一部分的含C芳族烃的料流供应到对二甲苯回收单元，以从含C芳族烃的料流中回收对二甲苯，并产生贫含对二甲苯的料流。使贫含对二甲苯的料流在二甲苯异构化区中在有效使贫含对二甲苯的料流中的二甲苯异构化并产生异构化料