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. 2020 Nov 2;5(45):29257–29264. doi: 10.1021/acsomega.0c04013

Table 2. Petrologic Characteristics, Elemental Composition, and Proximate Analysis of Coal Samples.

    proximate analysis (wt %)
ultimate analysis (%)
maceral groups (vol %)
samples Ro,max (%) moisture ash yield volatile matter C H O S vitrinite inertinite liptinite
Anthracite 2.86 1.65 5.21 6.12 86.52 2.64 6.83 3.32 86.3 13.7 0.0