Chemical recycling of processed mixed plastic waste streams

A method of processing waste plastic, said method comprising:

• (a) separating mixed plastic waste (MPW) into a polyethylene terephthalate-enriched (PET-enriched) stream and a polyolefin-enriched (PO-enriched) stream;
• (b) subjecting at least a portion of said PET-enriched stream to solvolysis in a solvolysis facility to produce a solvolysis effluent,
• (c) separating the solvolysis effluent to produce an r-terephthalyl product stream, an r-glycol product stream, and one or more of a glycol bottoms coproduct stream or a terephthalyl bottoms coproduct stream;
• and
• (d) combining at least a portion of said PO-enriched stream with at least a portion of said glycol bottoms coproduct stream and/or said terephthalyl bottoms coproduct stream to provide a combined stream;
• and
• (e) subjecting at least a portion of said combined stream to at least one of (i) partial oxidation (POX) gasification facility;
• (ii) pyrolysis in a pyrolysis facility;
• and (iii) chemical conversion in an energy generation facility.