Abstract
The composition and properties of black coals from the Khingui coal manifestation were evaluated. It was found that the test coals are noncaking low-sulfur (Sd to 0.49%) coals with a high yield of volatile substances (Vdaf= 43.52–51.42%). The high heat value of coal is Qsdaf = 22.6–32.8 MJ/kg, and the low heat value Qir on an as received basis is 11.7–20.6 MJ/kg. The humic acid content varies from 5.63 to 44.73%. The results of the analysis of the mineral matter of coal and ecologically harmful elements are given.
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