LOW-SULFUR OIL-SHALE RESEARCH AND EXPERIMENTAL PROCESSING

Low-sulphur oil shales,which in most cases yield paraffinic oil ripen retorting have been studied. Oils obtained have high values for solidi fication point (25-30 degrees C) and a relatively low density - about 900 kg/m(3). Compared to high-sulphur oils, low-sulphur ones contain m ore paraffins and olefins and less aromatic hydrocarbons. The content of phenols in paraffinic oils is negligible-2-4%. Low-sulphur oil shal es studied may be divided into two groups. The first group comprises o il shales for which 70-100% of the total sulphur remains in the semico ke during retorting, for the second group this percentage is 50-70.