INVESTIGATION OF THERMAL AND STEAM ACTIVATION OF COAL MATERIALS

The mass loss of two samples of coal materials obtained on the basis of a single raw material has different values under the same heat treatment conditions. These differences are mainly related to the constituent components of the coal samples. Probably, a separate release of carbon-containing components, i.e. cellulose and lignin, mainly before carbonation is associated with the destruction of more stable organic compounds in the composition of the feedstock, which, when processed with an alkali and acid solution, undergo changes and are released with the ash part into the composition of silicon dioxide. The highest values of yield and specific surface area for the studied coal samples were obtained during the process at a temperature of 800°C and a flow rate of 75 ml/min for 1.5-2 hours.

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