Thermal disposal is not only a viable alternative to landfills, but it is remarkable in that it allows the recovery of resources from ‘‘end of life” products. Because of its high level of technological development, direct combustion is currently the only commercially available alternative to the landfilling.
Besides direct combustion, other emerging thermal treatments, such as pyrolysis and gasification, may represent some effective alternatives to landfilling.
Such treatments allow higher recovery efficiency since the process by-products can be used:
The most common application of synthesis gas range from chemical production, fuel production, and energy production. Due to the high heating value syngas obtainable from tyres, this last option will be followed in our project. In any case, the maximum of energy efficiency will be followed as the main criterion for performances optimization.
The oil fraction (mainly composed of aliphatic and aromatic hydrocarbons) can be condensed at normal pressure and temperature. The percentage and composition of this fraction are strongly affected by the process conditions. It could be used as chemicals source.
The char represents the solid residue of the pyrolysis and gasification process and its exploitation largely affects the entire economic balance of the industrial application: depending on the carbon content it could be used as activated carbon (after activation process), solid fuel or as carbon source.