Coal: The Black Treasure
Definition Coal is a combustible black or brownish-black sedimentary rock, primarily composed of carbon along with hydrogen, oxygen, nitrogen, and sulfur, typically formed alongside earthy impurities underground.
History Humans have been using coal as a fuel source since ancient times. With the advent of the Industrial Revolution, coal consumption surged, becoming a primary energy source.
Applications
大地矿产资源有限公司
Coal
Export
Domestic
PT.HARTA BUMI RESOURCES
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Coal GAR 6200-5900
Spec | Economy Coal | 5600-5400 | 5700-5500 | 5800-5600 | 5900-5700 | 6000-5800 | 6100-5900 | 6200-6000 | 6300-6100 | 6400-6200 | 6500-6300 |
---|---|---|---|---|---|---|---|---|---|---|---|
Total Moisture % as received basis | 31 | 10.0 | 10.5 | 16.5 | 17.5 | 9 | 10 | 10.0 | 10.0 | 10.0 | 11.0 |
Proximate Analysis,% air dried basis | |||||||||||
Inherent Moisture | 14.5 | 5.5 | 5.5 | 9.0 | 9.5 | 4.5 | 4.5 | 4.5 | 5.0 | 5.0 | 4.5 |
Ash Content | 5.5 | 18.0 | 18.0 | 9.0 | 7.5 | 12.5 | 12.5 | 13.5 | 12.5 | 12.5 | 8.0 |
Volatile Matter | 43 | 41.0 | 41.0 | 42.0 | 42.0 | 41.5 | 41.5 | 41.0 | 42.5 | 42.5 | 43.5 |
Fixed Carbon | 42 | 40.0 | 40.0 | 40.0 | 40.0 | 40 | 40 | 41.5 | 41.5 | 41.5 | 43.5 |
Sulfur, % ADB | 0.35 | 0.65 | 0.65 | 0.75 | 0.75 | 0.55 | 0.8 | 1.0 | 0.8 | 0.8 | 1.0 |
Size mm | 90 Min | 90 Min | 90 Min | 90 Min | 90 Min | 90 Min | 90 Min | 90 Min | 90 Min | 90 Min | 90 Min |
Calorific Value,kcal | |||||||||||
Gross air dried | 5150 | 5920 | 6020 | 6338 | 6448 | 6265 | 6488 | 6618 | 6818 | 6890 | 6965 |
Gross as received | 4200 | 5600 | 5700 | 5800 | 5900 | 6000 | 6100 | 6200 | 6300 | 6400 | 6500 |
Net as Received | 3844 | 5228 | 5338 | 5424 | 5488 | 5638 | 5780 | 5917 | 5993 | 6108 | 6218 |
Hydrogen & Nitrogen | |||||||||||
OXygen | |||||||||||
Carbon |
Batu bara adalah salah satu bahan bakar fosil. Pengertian umumnya adalah batuan sedimen yang dapat terbakar, terbentuk dari endapan organik, utamanya adalah sisa-sisa tumbuhan dan terbentuk melalui proses pembatubaraan. Unsur-unsur utamanya terdiri dari karbon, hidrogen dan nitrogen dan oksigen
Batu bara juga adalah batuan organik yang memiliki sifat-sifat fisika dan kimia yang kompleks yang dapat ditemui dalam berbagai bentuk.