| 摘要 |
The invention relates to a method for recovering fractional hydrocarbons from recycled plastic fractions, which are sorted according to type and compacted under the exclusion of air using a feed system ( 1, 2, 3, 4 ), the compacted mass being supplied to a fusion container ( 7 ), where it is heated. The mass is separated into a first liquid phase, a first gas phase and a residual fraction, the liquid phase and the first gas phase are then transported to an evaporation container ( 20 ), in which a second liquid phase and a second gas phase are produced by the application of heat. The second liquid phase is transferred to a secondary heater ( 23 ) and heated further to produce a third gas phase. The second gas phase and the third gas phase are then supplied to a cracking tower ( 27 ), in which further cracking of the long-chained hydrocarbons occurs and short-chained hydrocarbons are produced. The oil gas is supplied to a primary condenser ( 30 ), in which it is condensed to liquid oil, the latter constituting the target product.
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