Carbon-efficient recycling process for production of polymers from waste materials

A process for recycling waste materials into chemical and polymer materials, the process involving:

• a. providing a feed stream of waste (A);
• b. supplying the feed stream A to a pyrolysis process (1) to obtain a product slate comprising an oil product (B) and an offgas stream (C) comprising a fraction of methane and a fraction of hydrogen;
• c. subjecting the offgas stream C to an offgas processing step (2) to obtain a purified stream (D) comprising hydrogen;
• d. subjecting the oil product B to a hydrotreatment step (3) in a hydrotreatment reactor, wherein the purified stream D comprising hydrogen is supplied to the hydrotreatment reactor, from which a hydrotreated stream (E) is obtained;
• e. supplying the stream E to a processing unit (4) for conversion of hydrocarbons into chemical products, from which a product stream (G) is obtained;
• f. subjecting the stream G to a separation section (5) for isolating chemical compounds, including polymerisable compounds, from the stream G, to obtain one or more streams (H) of monomer compounds;
• g. subjecting the monomer compound(s) H to polymerisation reactions in one or more polymerisation process (6) to obtain polymer materials (I).