Application of Carbonization Technique for Tire Waste Recycle

Tire waste is discharged at 3 or 4 million wheels per year in Japan. Tire waste is mainly treated as an auxiliary fuel in some cement kilns. However, significant amounts of tire waste is illegally discharged in dumping sites, and causing an environmental pollution. In order to find a practical recycling method of this tire waste, a carbonization technique was investigated. Tire waste was heated at 300 degrees for 3 h. The tire was completely decomposed to gas, oil, charcoal and steel iron. The generated gas was separated in an oil separator, and incinerated as supplementary fuel. Generated oil was also separated in an oil separator and collected. The quality of the oil corresponded to kerosene or light oil can be used as a fuel.