Indonesian Coal

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Indonesian Coal

Indonesian Coal

Indonesia is one of the world's largest producers and exporters of coal. Since 2005, when it overtook Australia, the country is the leading exporter in terms of thermal coal. A significant portion of its exported thermal coal consists of the medium-quality type (between 5100 and 6100 cal/gram) and the low-quality type (below 5100 cal/gram) for which large demand originates from China and India. According to information presented by Indonesia's Ministry of Energy and Mineral Resources, Indonesian coal reserves are estimated to last around 83 years if the current rate of production is to be continued.

Regarding global coal reserves, Indonesia currently ranks 9th, containing roughly 2.2 percent of total proven global coal reserves according to the most recent BP Statistical Review of World Energy. Around 60 percent of Indonesia's total coal reserves consists of the cheaper lower quality (sub-bituminous) coal that contains less than 6100 cal/gram.

Indonesian Coal

Specification


GCV (kcal/kg) ABD Basis Total Moisture ARB Basis Inherent Moisture ADB Basis ASH (ABD Basis) Size (mm)
Extreme High GCV 6000 - 6500 18% (+/- 2%) 12% 6 - 7% 0 - 50
High GCV 5800 (+/-100) 24% (+/- 2%) 14% 6 - 7 % 0 - 50
Medium GCV 5700 (+/-100) 30% (+/- 2%) 15% 6 - 7 % 0 - 50
Average GCV 5600 (+/-100) 32% (+/- 2%) 16% 6 - 7 % 0 - 50
Low GCV 5400 (+/-200) 36% (+/- 2%) 15% 6 - 7 % 0 - 50

GCV 5000

PARAMETER
Total Moisture: 40% Max
Inherent Moisture: 23% Max
Ash Content: 5% Max
Volatile Matter: 42% Max
Fixed Carbon: By difference
Total Sulphur: 0.5% Max
Gross Calorific Value: GCV 4800
HGI: 50 Min
Size: 0-50 mm
Grosss Calorific Value: ARB 3600 kcal/kg
Net Calorific Value: ARB 3300 kcal/kg

GCV 5300

PARAMETER
Total Moisture: 38% Max
Inherent Moisture: 14% Max
Ash Content: 5% Max
Volatile Matter: 39-44%
Fixed Carbon: By difference
Total Sulphur: 0.4% Max
Gross Calorific Value: 5300 Kcal/kg
HGI: 45 Min
Size: 50 Max
Grosss Calorific Value: ARB 4100 Kcal/kg
Net Calorific Value: ARB 3800 Kcal/kg

GCV 5500

PARAMETER
Total Moisture: 34% Max
Inherent Moisture: 17% Max
Ash Content: 8% Max
Volatile Matter: 44%
Fixed Carbon:
Total Sulphur: 0.6% Max
Gross Calorific Value: 5300 Kcal/kg
HGI: 40 Max
Size: 0-50 mm
Grosss Calorific Value: ARB 4500 Kcal/kg
Net Calorific Value: ARB 4100 Kcal/kg

GCV 5800

PARAMETER
Total Moisture: 28% Max
Inherent Moisture: 14% Max
Ash Content: 12% Max
Volatile Matter: 40% Max
Fixed Carbon: -
Total Sulphur: 0.8% Max
Gross Calorific Value: 5800 Kcal/kg
HGI: 40-43
Size: 50 Max
Grosss Calorific Value: ARB 5300 Kcal/Kg
Net Calorific Value: ARB 4800 Kcal/Kg

GCV 6000

PARAMETER
Total Moisture: 18% Max
Inherent Moisture: 7% Max
Ash Content: 12% Max
Volatile Matter: 40% Max
Fixed Carbon: -
Total Sulphur: 0.8% Max
Gross Calorific Value: 5800 Kcal/kg
HGI: 40 Max
Size: 0-50 mm
Grosss Calorific Value: ARB 5500 Kcal/kg
Net Calorific Value: ARB 5100 Kcal/kg

GCV 6300

PARAMETER
Total Moisture: 10% Max
Inherent Moisture: 5% Max
Ash Content: 10% Max
Volatile Matter: 44% Max
Fixed Carbon: By difference
Total Sulphur: 0.8% Max
Gross Calorific Value: 6300 Kcal/kg
HGI: 40 Max
Size: 0-50 mm
Grosss Calorific Value: ARB 6000 Kcal/kg
Net Calorific Value: ARB 5500 kcal/kg

GCV 6500 - GCV 6600

PARAMETER
Total Moisture: 8% Max
Inherent Moisture: 5% Max
Ash Content: 10% Max
Volatile Matter: 42% Max
Fixed Carbon: By difference
Total Sulphur: 0.8% Max
Gross Calorific Value: 6500 kcal/kg
HGI: 40 Min
Size: 0-50 mm
Grosss Calorific Value: ARB 3600 kcal/kg
ARB 6200 kcal/kg ARB 5700 kcal/kg