Waste tire valorization by intermediate pyrolysis using a continuous twin-auger reactor: Operational features.

Pyrolysis can be regarded as a roadmap towards a circular and sustainable economy for waste tires (WT). This work investigates the operational characteristics of a novel twin-auger reactor to transform WT by intermediate pyrolysis into tire pyrolysis oil (TPO), recovery carbon black (rCB), and tire pyrolysis gas (TPG). The influence of four operating parameters: reactor temperature (X), WT mass flow rate (X), solid residence time (X) and N volumetric flow rate (X), was assessed in order to maximize the TPO yield (Y), while keeping the rCB one (Y) as low as possible.