Effects of Functional Groups in Coal with Different Vitrinite/Inertinite Ratios on Pyrolysis Products.

The I values of the samples before pyrolysis are consistent ( Figure 7 c), whereas after pyrolysis, they increase sharply and show an increasing trend with increasing inertinite content ( Figure 7 d), attributable to the fact that aliphatic functional groups are much easier to decompose than aromatic functional groups, as shown in Figure 6 .

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