Titlebook: Coal Utilisation; Technology, Economic L. Grainger,J. Gibson Book 1982 L. Grainger and J. Gibson 1982 economic development.electricity.geot

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Liquefaction of Coalure form so this necessitates both the elimination of mineral matter and the removal of atoms other than C and H. It will be obvious that these changes are unlikely to be accomplished without considerable expenditure of energy and other resources.

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