Predicting the classification characteristics of coal. Part 1. The gross calorific value in the wet ash-free state

Analysis of 63 samples of coal concentrates (from Ukraine, Russia, the United States, Canada, Australia, and Poland) currently employed at Ukrainian coke plants permits the development of formulas predicting the gross calorific value in the wet ash-free state. Three separate formulas are derived (fo...

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Bibliographic Details
Published in:Coke and chemistry (New York, N.Y.) N.Y.), 2015-09, Vol.58 (9), p.321-328
Main Authors: Balaeva, Ya. S., Miroshnichenko, D. V., Kaftan, Yu. S.
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Coal
Industrial Chemistry/Chemical Engineering
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Summary:Analysis of 63 samples of coal concentrates (from Ukraine, Russia, the United States, Canada, Australia, and Poland) currently employed at Ukrainian coke plants permits the development of formulas predicting the gross calorific value in the wet ash-free state. Three separate formulas are derived (for the Ukrainian coal, the Russian coal, and the other imported coal), with allowance for the differences in the petrographic composition and degree of reduction of the coal. The prediction is based on the yield of volatiles, the mean vitrinite reflection coefficient, and the sum of lean microcomponents. The accuracy of the predictions is within the standard tolerances (σ ≤ 0.3 MJ/kg).
ISSN:1068-364X
1934-8398
DOI:10.3103/S1068364X15090021