Method for producing of liquid hydrocarbons and an installation for the production of liquid hydrocarbons

摘要

The present invention regards a method for obtaining a product having optimum technical characteristics while minimising the consumption of utilities including electricity. A method for the manufacture of liquid hydrocarbons wherein the plastic waste is first subjected to a process of mechanical pressing on a press 1, next it is subjected to drying in a dryer 2, after which the raw material is subjected to a melting process in a melter 3 at a temperature of 120-400 ° C, and the molten raw material is transferred from the melter 3 via a screw conveyor 5 directly to a tubular reactor 6 where a process of primary thermal cracking is run at 380-500°C. In a chamber of a separator 8 a process of separating the liquid phase from the gaseous phase is carried out, and combustible gases, hydrocarbon vapours and wax vapours are subjected to a process of separation in a separator 9 while hydrocarbon product vapours are subjected to a process of condensation and the condensate is separated from the combustible gases in a separator 13. and then stored in a storage tank 14. A plant comprises a mechanical press (1) and a tubular screw conveyor (5) connected to a tubular reactor (6), and a tubular reactor (12) equipped with ceramic insulated electric band heaters (7), whereas situated between the two reactors is a separation chamber (8) connected with a column separator (9).