The invention comprises methods of robotically separating unwanted heteroatom-containing materials from a plastic mixture and catalytically pyrolyzing the resulting mixed plastics to obtain olefins and aromatics. Systems and compositions useful in the catalytic pyrolysis of plastics are also described.

Techniques for managing production and reuse of a recyclable material are disclosed. Combination of markers introduced into one or more ingredient material components of recyclable materials are used to indicate one or more properties of at least one of the ingredient material components e.g., a type of material used, percentage of the material type in the recyclable material, and suchlike. A signal obtained from a product comprising the recyclable material can be processed to detect presence or absence of the combination of markers therein. Based on the detection of the combination of markers, information indicative of the one or more properties of the at least one ingredient material component is determined, and based on the information it is decided either about a suitable recycling process for reusing the at least one ingredient material component, or a suitable disposal process for disposing the product.

The invention comprises methods of robotically separating unwanted heteroatom-containing materials from a plastic mixture and catalytically pyrolyzing the resulting mixed plastics to obtain olefins and aromatics. Systems and compositions useful in the catalytic pyrolysis of plastics are also described.

The invention comprises methods of robotically separating unwanted heteroatom-containing materials from a plastic mixture and catalytically pyrolyzing the resulting mixed plastics to obtain olefins and aromatics. Systems and compositions useful in the catalytic pyrolysis of plastics are also described.