Environmental Benefits

Pyrolyx ameliorates the environmental impact of both carbon black manufacture and end-of-life tyres in the following manner:

  1. The only material input of the Pyrolyx process is waste tyres which would otherwise be destined for landfills or burnt. Each Pyrolyx facility consumes about 4 million waste tyres annually in a sustainable closed end process
  2. Each tonne of recovered Carbon Black (rCB) saves about 2.5 tonnes of carbon dioxide compared to the production of traditional carbon black

The end-of-life tyre problem

End-of-life, or waste, tyres represent a major environmental and health concern, with substantial regulatory focus directed at this issue. It is estimated that there are over four billion end-of-life tyres stockpiled worldwide with over 1.84 billion end-of-life tyres generated annually by 2020. Based on the increasing trend in tyre units shipped for original equipment tyres and replacement tyres, the number of end-of-life tyres generated annually is expected to continue to increase.

End-of-life tyres generated annually

Existing uses of end-of-life tyres

The predominant uses for end-of-life tyres are burning for tyre-derived fuel applications, and use of tyre granules in road surfaces, sports fields and playgrounds. However, these applications face challenges due to environmental, health and economic issues. Resorting to dumping end-of-life tyres in landfill is also becoming increasingly expensive.

Existing solutions Challenges
  • Landfill is becoming increasingly expensive
  • Dumping costs of ~US$50/t in the US compared to paying Pyrolyx US$33/t is a compelling proposition for waste suppliers
  • Increasing environmental and health restrictions worldwide on burning of ELTs due to air emission control
  • Burning of waste tyres in combination with coal results in increased emission of lead, zinc, and chromium compared to burning of coal only
Road surfaces
  • High viscosity recycled tyre rubber modified bitumen requires higher compacting temperatures and cannot be stored for prolonged periods
Playground & sportsfields
  • Medical concerns emerging around inclusion in bases for playgrounds and sports fields
  • Certain studies show chemicals released from tyre shreds include carcinogens, resulting in increased risk of cancer

Product Safety

Pyrolyx recovered Carbon Black meets the highest quality standards, and in many ways exceeds the safety and quality standards of traditional carbon black.  

rCB blend rubber has significantly lower levels of polycyclic aromatic hydrocarbons (PAH)  compared to traditional rubber. These hydrocarbons have known carcinogenic properties and correlation to cardiovascular disease. PAH compounds are strictly regulated in air, water and soil due to their toxicity. Pyrolyx  rCB is safe  for food packaging applications. Pyrolyx supplies rCB grades in full compliance with European Regulation EU 10-2011 Plastics Intended to Come into Contact with Food.