| Abstrakt: |
Analysis of 63 samples of coal concentrates (from Ukraine, Russia, the United States, Canada, Australia, and Poland) currently employed at Ukrainian coke plants indicates that the prediction of the maximum moisture content of coal may expediently be based on R and Q , determined, respectively, in plant laboratories and in power-station laboratories. The maximum moisture content of metamorphically distinct coals does not depend on their ash content (in the range 3.7-35.3%) nor on the chemical composition of the ash, expressed by the basicity index B (in the range 1.24-27.18) and the base/acid ratio I (in the range 0.198-1.832). Although the oxidation of coal also increases the maximum moisture content, this change is less than the error in its determination (0.5%). The oxidation of practically 30% of the coal's organic mass increases the maximum moisture content by no more than 0.4% [ABSTRACT FROM AUTHOR] |
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