Petrographic Characterization of Sapropelite Coal
Chemistry for Sustainable Development
||sapropelite coal, petrographic analysis, macerals, liptinite, alginite, vitrinite
Federal Research Center of Coal and Coal Chemistry, Siberian Branch of the Russian Academy of Sciences, Kemerovo, Russia
Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
The petrographic composition of sapropelite coal from different deposits of Russia was investigated. It was revealed that the studied samples contain more than 75 % of macerals of the liptinite group, 8 to 24 % macerals of the vitrinite group, and minor amount of the group of inertinites (mainly fusinite), not more than 1-2 %. To determine the genetic maturity of the studied sapropelite coal, the reflectivity of vitrinite was determined. It was established that the vitrinite reflection index in the samples varies within a relatively narrow range from 0.27 % (the sample from the Charchik deposit) to 0.41 % (the sample from the Taimylyr deposit).