3. Classification
The classification of solid fuels has been applied to coal, whose wide variety of qualities has made it necessary to establish a national classification for producer countries, to facilitate comparisons and trade. The classifications used differ from country to country, depending on the nature of local reserves and utilization patterns.
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The classifications proposed by different countries are not always comparable and,...
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Classification
Bibliography
References
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(1) - DURAND (B.) -
Kerogen : insoluble organic matter from sedimentary rocks.
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Editions Technip (1980).
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(2) - ALPERN (B.) -
Combustibles solides.
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Les Sciences, Encyclopédie Alpha, n° 106, 2 mars 1976.
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