Best Sumatera Coal
- 1. Specification Indicated Coal Specification E D C B A Remarks
Calorific Value, Kcal/kg Gross air dried basis 5.500 5.900 6.300 6.700 7.000
Total Moisture (%) AR 30 28 21 18 14
HGI 47 50 50 50 55
Sulphur ADB 0,7 0,8 0,8 0,7 0,8
Fluid (oC) >1350 >1350 >1350 >1350 >1350
Size (Nominal %) mm 0-50 0-50 0-50 0-50 0-50
Proximate Analysis (%) ADB
Inherent Moisture 14,7 14 10,5 9 7 Approx
Ash Content 7 7 8 7 7 Approx
Volatile Matter 39 40 40 40 40 Approx
Fixed Carbon 39,3 39 41.5 45 46 Approx
Ultimate Analysis DAF(%)
Carbon 56,60 64,20 79,00 71,64
Hydrogen 5,59 4,50 6,00 4,40
Nitrogen 0,75 0,95 1,00 0,96
Oxygen 13,80 14,90 13,30 9,40
Sulphur 0,78 0,93 0,70 0,60
Analysis of Ash DB (%)
SiO2 62,23 64,78 59,55 54,06
Al2O3 24,00 21,80 25,30 32,60
Fe2O3 5,89 3,10 5,40 6,20
CaO 0,90 4,20 0,89 1,55
MgO 1,43 1,15 1,75 1,03
TiO2 0,53 1,70 3,34 0,77
Na2O 2,00 1,25 1,34 0,70
K2O 1,03 0,60 0,50 0,80
Mn3O4 0,05 0,10 0,08 0,10
P2O5 0,11 0,40 0,51 1,23
SO3 1,20 0,45 1,34 0,61
Traces Element
Boron ppm N.A NA 100 93 Approx
Berilium ppm N.A NA <1 <1 Approx
Cadmium ppm N.A NA < 0.1 < 0.1 Approx
Copper ppm N.A NA 5 6 Approx
Manganese ppm N.A NA 26 27 Approx
Molybdenum ppm N.A NA 14 19 Approx
Nickel ppm N.A NA 4 6 Approx
Lead ppm N.A NA <1 <1 Approx
Vanadium ppm N.A NA 6 8 Approx
Arsenic ppm N.A NA 2 1 Approx
Selenium ppm N.A NA < 0.1 < 0.1 Approx
Mercury ppm N.A NA < 0.1 < 0.1 Approx
Flourine ppm 81 NA 16 9 Approx
Chlorine % < 0.02 NA < 0.01 < 0.01 Approx
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