Tandem alkane metathesis and catalyzed depolymerization for chemically complex circular feedstock

A process for converting plastic waste, the process comprising:

• (a) providing a process feed comprising a polyolefin waste feed and a light hydrocarbon co-feed to a first heating zone;
• (b) heating the process feed in the presence of a first depolymerization catalyst under depolymerization conditions to form a first effluent;
• (c) providing the first effluent to a second heating zone;
• (d) heating the first effluent in the presence of a metathesis catalyst under metathesis conditions to form a second effluent;
• and
• (e)(1) separating at least a portion of the second effluent into a plurality of output streams, each output stream comprising a circular product,
• (2)(A) providing at least a portion of the second effluent to a third heating zone and heating the second product feed in the presence of a second depolymerization catalyst under depolymerization conditions to form a third effluent, and (B) separating the third effluent into a plurality of output streams, each output stream comprising a circular product, or
• (3) conducting steps (e)(1), (e)(2) (A), and (e)(2)(B).