Methods and systems of upgrading heavy aromatics stream to petrochemical feedstock

A process for recovery of alkyl mono-aromatic compounds, the process comprising the steps of:

• supplying a feed stream containing C9+ compounds from an aromatic complex to a separator to produce a first product stream containing C9 and C10 compounds and a second product stream containing one or more of heavy alkyl aromatic compounds and alkyl-bridged non-condensed alkyl multi-aromatic compounds;
• supplying the first product stream containing C9 and C10 compounds to a transalkylation/toluene disproportionation process unit to yield a third product stream enriched in C8 compounds;
• allowing a hydrogen stream and the second product stream to react in presence of a catalyst under specific reaction conditions in a hydrodearylation reactor to yield a fourth product stream containing one or more alkyl mono-aromatic compounds and a fifth product stream containing C11+ compounds;
• and
• supplying the fourth product stream to the toluene transalkylation/toluene disproportionation process unit to produce alkyl mono-aromatic compounds.