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. 2022 Nov 17;7(48):43770–43783. doi: 10.1021/acsomega.2c04793

Table 2. Coal Quality Characteristics of Coal Samplesa.

      proximate analysis (%)
maceral (%)
coal sample sample type Ro,max (%) Mad (%) Ad (%) Vdaf (%) FCad (%) V (%) I (%) L (%) M (%)
D01-JM vitrain 0.63 6.06 9.27 43.37 56.62 64.5 31.8 1.6 2.1
D01-AM durain 4.32 14.06 31.49 68.51 18.2 73.5 2.6 5.7
H01-JM vitrain 0.73 3.41 14.18 37.88 54.03 72.8 22.8 1.1 3.3
H01-AM durain 3.05 16.76 35.83 55.31 13.3 74.6 7.3 4.8
D02-JM vitrain 0.60 6.41 8.90 42.03 57.98 68.1 30.5 0.0 1.4
D02-AM durain 5.58 5.75 29.07 70.93 19.0 78.3 0.9 1.8
D03-JM vitrain 0.63 6.33 9.38 42.97 57.03 64.9 32.9 0.8 1.4
D03-AM durain 4.81 5.75 29.94 70.06 22.4 74.1 2.0 1.5
a

Ro,max: maximum reflectance of vitrinite; V: vitrinite; I: inertinite; L: liptinite; M: mineral; Mad: moisture content on air-dried basis; Ad: ash yield on air-dried basis; Vdaf: volatile yield on dry ash-free basis; FCad: fixed carbon content on air-dried basis.