Spectroscopic Elucidation of the Links between Char Morphology and Chemical Structure of Coals of Different Ranks

Abstract

In this investigation, SAXS and XRD were used to investigate both the physical and chemical changes in six coals of different ranks subjected to heat treatment. The specific surface area which gives an indication of the reactivity of the coal (measures surface area available for reaction) was determined to be in the range of 70.