Siberian Federal University

The influence of highly dispersed iron containing catalysts on the processes of brown kansk-achinsk coal hydropyrolysis and hydrogenation in the tetralin was established. It was shown that the use of catalysts in an amount of 3 wt. % on the organic mass of coal significantly increases the conversion of coal and the liquid products yield in the processes of its thermal conversion. The highest values of these parameters in the processes of hydropyrolysis (62 wt. % and 42 wt. %, respectively) and hydrogenation (91 wt. % and 65,5 wt. %, respectively) were achieved in the presence of haematite activated by mechanochemical and ultrasound treatments. The influence of the conditions of coal and polyolefins mixture hydropyrolysis on the yield and composition of the obtained products was established. The growth of polyolefin content in the mixture increases the coal conversion, yield of low-boiling liquid products and content of alkyl aromatic and aliphatic substances. The activated haematite catalyst increases the yield of fraction ≤ 180 °C by 1,4–1,6 times and the fraction 180–350 °C by 1,2–1,4 times.