A method for producing light aromatic hydrocarbons from C.sub.9.sup.+ aromatic hydrocarbons includes a step of contacting a C.sub.9.sup.+ aromatic hydrocarbon with a dealkylation catalyst comprising a KL zeolite, and platinum and a modifying metal supported thereon in the presence of hydrogen, to obtain a light aromatic hydrocarbon. The modifying metal is selected from the group consisting of Group IIA metals and rare earth metals. By using a Pt/KL catalyst comprising a specific modifying metal in the dealkylation reaction of C.sub.9.sup.+ aromatic hydrocarbons for producing light aromatic hydrocarbons, the method shows the advantages of high conversion rate of feedstock, high yield of light aromatic hydrocarbons, good reaction selectivity.

Processes and facilities for producing a recycled content organic chemical compound directly or indirectly from waste plastic. Processing schemes are described herein for converting waste plastic (or hydrocarbon having recycled content derived from waste plastic) into useful intermediate chemicals and final products. The processing schemes may comprise a process for removing nitrogen from a feedstock for catalytic reforming. In some aspects, recycled content aromatics (r-aromatics) can be processed to provide recycled content paraxylene (r-paraxylene). which can then be used to provide recycled content terephthalic acid (r-TPA) and/or recycled content polyethylene terephthalate (r-PET).

Processes and facilities for producing a recycled content organic chemical compound directly or indirectly from waste plastic. Processing schemes are described herein for converting waste plastic (or hydrocarbon having recycled content derived from waste plastic) into useful intermediate chemicals and final products. The processing schemes may comprise a process for removing nitrogen from a feedstock for catalytic reforming. In some aspects, recycled content aromatics (r-aromatics) can be processed to provide recycled content paraxylene (r-paraxylene). which can then be used to provide recycled content terephthalic acid (r-TPA) and/or recycled content polyethylene terephthalate (r-PET).