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. 2021 Nov 12;6(46):31026–31036. doi: 10.1021/acsomega.1c04135

Table 3. Test Results of Coal Samplesa.

proximate analysisad (mass %)
moisture volatile matter fixed carbon ash
3.13 32.77 49.80 14.30
ultimate analysisdaf (mass %)
C H O* N S
63.30 5.09 28.82 1.32 1.47
inorganic chemical compositiond (mass %)
SiO2 SO3 Al2O3 Fe2O3 K2O CaO TiO2 Na2O MgO
6.58 3.03 2.51 1.16 0.72 0.30 0.22 0.14 0.13
a

ad, air-dried basis; d, dry basis; daf, dry ash free basis; *, by difference.