Quick Info:


DGE-Thermolysis plant MIDI

Scrap Tire Recycling

Safety at pyrolysis plants
Presentation: DGE-Thermolysis of scrap tires
Massflow and emissions
Economic of DGE-scrap tire-thermolysis
Information about scrap tires
Information about thermolysis condensate

Technical Details
Infos zum BImSchG
Dirk Gerlach Engineer

Upgrading of Scrap Tyres


  • Disposal of scrap tires
  • Production of a high quality condensates for bitumina and chemical industries
  • Production of industrial carbon black; best case substitution of rubber carbon black -> but there are still needed international standards for high quality levels


  • Permanent gas: for process heating
  • Condensate oil: heating value up to 44 MJ/kg
  • Condensate water: low amount
  • Solids: industrial carbon black typically 80-85% C, rest are fillers
Please find here a diagramm taken from
CalRecovery-Report No. 1364
California 1995:

Advantages DGE Basic Technology

  • continuous process for highest quality and stability
  • no critical emissions
  • electrical heat -> minimum of emissions & minimum of heat losses
  • combination with renewable energy
  • process open for sidestream technologies (catalysts, ultrasonic, microwaves)

Needed Pre Treatment

  • Drying: not needed
  • Pre-Crushing: 250x250mm is possible, 20x20mm typical - but smaller pieces increasing the throughput
  • Granulation to 1mm grain
  • Sorting: metall separation (non tempered scrap metall gives higher prices)

Post Treatment

  • Activation
  • Milling down to µ-particles
  • Pelleting / briquetting
  • Fractioning of the oil

Further Information


Dipl.-Ing.(FH) Dirk Gerlach   •   Passion for Innovation

LEO - Dictionary

A Service of LEO GmbH.