Process for the preparation of polymers from waste plastic feedstocks

A process for the production of polymers from waste plastics feedstocks comprising the steps in this order of:

• (a) providing a hydrocarbon stream A obtained by treatment of a waste plastics feedstock;
• (b) providing a hydrocarbon stream B;
• (c) supplying a feed C comprising a fraction of the hydrocarbon stream A and a fraction of the hydrocarbon stream B to a thermal cracker furnace comprising cracking coil(s);
• (d) performing a thermal cracking operation in the presence of steam to obtain a cracked hydrocarbon stream D;
• (e) supplying the cracked hydrocarbon stream D to a separation unit;
• (f) performing a separation operation in the separation unit to obtain a product stream E comprising a monomer;
• (g) supplying the product stream E to a polymerisation reactor;
• and
• (h) performing a polymerisation reaction in the polymerisation reactor to obtain an polymer,
• wherein the hydrocarbon stream A comprises:
• ≥25.0 and ≤50.0 wt %, of n-paraffins;
• and/or
• ≥5.0 and ≤20.0 wt %, of iso-paraffins;
• and/or
• ≥25.0 and ≤50.0 wt %, of olefins;
• and/or
• ≥5.0 and ≤20.0 wt %, of napthenes;
• and/or
• ≥5.0 and ≤15.0 wt %, of aromatics
• with regard to the total weight of the hydrocarbon stream A.