Table 2. Coal Quality of Baiyin Hua Raw Coal and Treated Coal Samples.
| Industrial analysis (wt %) |
Ultimate analysis (wt %, daf) |
||||||||
|---|---|---|---|---|---|---|---|---|---|
| samples | Mad | Ad | Vdaf | FCdaf | C | H | N | S | Oa |
| BYH | 26.55 ± 0.22 | 25.56 ± 0.02 | 45.32 ± 0.01 | 54.68 ± 0.02 | 69.13 ± 0.01 | 4.91 ± 0.04 | 1.13 ± 0.05 | 0.81 ± 0.12 | 24.02 ± 0.06 |
| HTD150 | 8.35 ± 0.05 | 25.68 ± 0.01 | 44.93 ± 0.02 | 55.07 ± 0.02 | 70.18 ± 0.02 | 5.09 ± 0.02 | 1.24 ± 0.08 | 0.76 ± 0.09 | 22.73 ± 0.05 |
| HTD200 | 7.86 ± 0.05 | 26.02 ± 0.01 | 43.26 ± 0.01 | 56.74 ± 0.01 | 72.36 ± 0.03 | 5.17 ± 0.01 | 1.23 ± 0.06 | 0.83 ± 0.05 | 20.41 ± 0.04 |
| HTD250 | 7.78 ± 0.03 | 26.38 ± 0.03 | 41.01 ± 0.03 | 58.99 ± 0.03 | 73.28 ± 0.01 | 5.49 ± 0.02 | 1.25 ± 0.04 | 0.77 ± 0.42 | 18.49 ± 0.13 |
| HTD310 | 5.27 ± 0.01 | 26.85 ± 0.01 | 38.19 ± 0.02 | 61.81 ± 0.02 | 75.46 ± 0.02 | 5.06 ± 0.01 | 1.28 ± 0.03 | 0.78 ± 0.14 | 17.42 ± 0.05 |
a
By difference.