| 摘要 |
A system and method of converting waste plastics into hydrocarbon oil comprises a thermal cracking reactor (11), into which the waste plastics are cracked at a temperature in the range of 270-800 DEG C to obtain partly gaseous hydrocarbons, partly liquid hydrocarbons, and remaining residues. A continuous thermal cracking and residual discharging portion (12) is connected t have the liquid hydrocarbons gradually and fully cracked into gaseous hydrocarbons, while the residues are discharged at a residual discharge outlet. A chlorine removal portion (13) is connected to receive the gaseous hydrocarbons to remove chloring from it. A catalytic cracking reactor (14) is connected to the chlorine removal portion to have the gaseous hydrocarbons catalytic cracking with an acid catalyst. A three-stage cooling portion (15, 16, 17, 18) is adopted to have the catalytically cracked gaseous hydrocarbons fully converted into liquid hydrocarbons, i.e., hydrocarbon oil. A pressurized activation reaction portion (19) is provided to remove few amount of S.N.P. from the liquid hydrocarbons to obtain purified hydrocarbon oils.
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