A Comparative Study on the Wettability of Two Coal Samples during Deep Burial Metamorphism

Table 2

Fraction of C on two coal samples (relative % of C1 s).

Coal types	C-C, C-H (%)	C-O-C, C-OH (%)	C=O (%)	O=C-O (%)
Coal 1	44.66	33.94	15.78	5.62
Coal 2	55.02	36.56	8.42	0