Determination of granulometric composition of technogenic raw materials for producing composite fuel

Ukraine’s energy sector needs commercial coal from 19 to 21 million tons annually. At the same time, in 2020, coal production amounted to 28.82 million tons. This is less than in 2019 by 2,406.3 thousand tons or 7.7 %. The production of thermal coal decreased by 3,057.8 thousand tons or 12.3 %. Natural gas also produced less than 501.2 million m3 (or 2.4 %) compared to 2019 and amounted to a total of 20,233.9 million m3 [1]. Tens of billions of hryvnias are spent annually on coal imports. Because of the above mentioned, one of the promising ways in the context of sustainable development of Ukraine is to ensure energy independence [2, 3], which will certainly contribute to the development of innovative energy-saving systems [4].