Process for production of useful hydrocarbon materials from plastic waste and reaction system therefor

A reaction system, comprising

• at least one surge hopper adapted to receive high molecular weight hydrocarbons, wherein the high molecular weight hydrocarbons being selected from a group consisting shredded waste plastic and un-shredded waste plastic;
• a melter fluidically connected to the at least one surge hopper via first set of one or more valves,
• wherein the melter is adapted to mix the high molecular weight hydrocarbons and the lower molecular weight hydrocarbons, via mixing means, to obtain a uniform mixture representative of low viscosity dissolved polymer phase, and heat the uniform mixture to yield a molten state, and
• wherein the melter comprises one or more openings to receive at least one of low molecular weight hydrocarbons as solution reactant and heavy wax, and one or more openings to release dissolved hydrocarbon gases including light naphtha range material, and a molten uniform mixture of the high molecular weight hydrocarbons and the low molecular weight hydrocarbons;
• a thermolysis reactor fluidically connected to the melter via second set of one or more valves and adapted to produce hydrocarbon materials comprising medium molecular weight hydrocarbons to low molecular weight hydrocarbons, wherein the thermolysis reactor comprises a primary zone, an optional secondary zone, one or more openings to receive hydrocarbon liquids, and one or more openings to release at least one of a vapour phase of the thermolysis reactor and a thermolyzed material,
• wherein the primary zone being adapted to convert the molten mixture into a condensed phase at a moderate temperature with a relatively long residence time, and the optional secondary zone being adapted to convert the molten mixture into a vapor phase at high temperature with a short residence time, and
• wherein the optional secondary zone is adapted to receive vapors circulated from the primary zone.