FT-IR Investigation of the Structural Changes of Sulcis and South Africa Coals under Progressive Heating in Vacuum: Correlation with Volatile Matter
Figure 4
FT-IR spectra in 2000–400 cm−1 region of vapors obtained at different temperatures from Sulcis (—) and South Africa (- - -) coals sampled in the cooling trap (b). K = ketones, A = aromatic hydrocarbons, and H = aliphatic hydrocarbons (saturated and unsaturated).
