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. 2021 Sep 16;6(38):24362–24376. doi: 10.1021/acsomega.1c02522

Table 2. Proximate Analysis and Sulfur form of Coal (%)a.

samples Mad Ad Vdaf St,d Sp,d Ss,d So,d
YQ9-BC 0.81 15.24 9.52 3.15 2.29 0.00 0.86
YQ9-SB 0.72 26.56 16.77 4.76 3.39 0.01 1.37
YQ15-BC 0.67 9.92 9.66 4.34 1.92 0.08 2.35
GZ9-DC 1.13 21.00 9.94 1.20 0.91 0.10 0.19
GZ9-SD 0.96 17.85 12.18 1.11 0.85 0.04 0.22
GZ9-BC 0.88 12.83 11.16 4.59 4.02 0.03 0.54
a

M, moisture; A, ash yield; V, volatile matter; St, total sulfur; Sp, pyrite sulfur; Ss, sulfate sulfur; So, organic sulfur; ad, as-received basis; d, dry basis; and daf, dry and ash-free basis.