Scrap tire rubber was successfully pyrolyzed in a two-stage pyrolyzer.
The two-stage pyrolyzer is composed of auger and fluidized bed reactors.
N2 and temperatures of ∼500 °C were effective for a low-sulfur oil.
A pyrolysis oil contained only 0.55 wt.% of sulfur and 0.28 wt.% of nitrogen.
A pyrolysis oil from the auger reactor contained 50 wt.% dl-limonene.