Tire pyrolysis may depend on high-value byproduct for viability

摘要

The pyrolysis process reacts the tire material with steam, usually employing a mixed metal oxide catalyst. Apart from yielding a hydrogen-rich "syngas" (containing also hydrogen, carbon monoxide, carbon dioxide and methane), pyrolysis yields a carbon-rich char fraction. This has been tested in the past as a semi-reinforcing filler for new tires or as an active carbon; it cannot be regarded as a high-grade carbon black without further processing.