Koval'ov Y. Scientific fundamentals and technologies for processing high-boiling fractions of coal tar to produce polycyclic hydrocarbons.

The subject of inquiry is coal tar (CT) and its fractions. The project's objective is to develop new scientific concepts being the basis for the development of new advanced CT-processing technology with generation of pure individual hydrocarbons. Methods applied: infrared spectroscopy, gas-liquid chromatography, X-ray structure analysis and other. New scientific concepts and criterion indexes of tar properties have been developed. New advanced CT-processing technology with multiple-effect evaporation and multicolumn fractionation as well as new complex scheme of heavy pitch distillate processing with generation of pure fluoranthene, chrysene and pyrene have been scientifically substantiated and developed. All technology solutions were implemented during the projecting phase. Primary elements of the technology have been industrially tested.