Comparative characterization of semicoking oils obtained from rubber wastes and from co-processing of kukersite oil shale and rubber wastes in solid heat-carrier unit

Semicoking oil was obtained from tires only and from kukersite with additio n of tires in solid heat-carrier unit SHC-3000 at Estonian Power Plant in N arva. Chemical composition of these oils has been studied using thin-layer and gas-liquid chromatography. The semicoking oil obtained from tires only contains 84.8% of hydrocarbons, 17.4% of which are nonaromatic compounds. T reating kukersite together with tires improves oil quality, makes it lower boiling and more unsaturated, increases the content of nonaromatic compound s in oil up to 29.8%, and so brings its composition closer to that of comme rcial liquid fuel.