Thermal solution of Mongolian and Russian lignite

Attention focuses on the products and process of liquefaction of Baganursk and Tugrugnursk lignite (Mongolia) and Podmoskovnyi, Kansko-Achinsk, and South Yakutsk lignite (Russia), in the presence of various hydrogen donors (tetralin, mixtures of tetralin with isopropanol, the hydrocarbon semicoking fraction of Podmoskovnyi lignite).