Waste plastics pretreatment process based on coking by coke oven

Waste plastics pretreatment process based on coking by coke oven

  • CN 101,831,313 A
  • Filed: 04/30/2010
  • Published: 09/15/2010
  • Est. Priority Date: 04/30/2010
  • Status: Active Application
First Claim
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1. the waste plastics pretreatment process based on coking by coke oven is characterized in that, may further comprise the steps:

  • (1) plastic waste is carried out coarse breaking to granularity 8-12mm through pulverizer;

    (2) coarse breaking to the plastic waste of granularity 8-12mm is sent into pyrolysis oven, under the condition of secluding air, be heated to 225-275 ℃

    ,, separate out pyrolysis gas through the pyrolysis of 30-90min constant temperature;

    (3) residue after the plastic waste pyrolysis is a fluidised form, and the cooling back forms solid-state solids, sends into pulverizer again and is crushed to≤

    the 1mm granularity;

    (4) be that 1% proportioning is allocated in the coking coal by mass percentage with above-mentioned solids.

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