About
Anthracite Coal
Product Details:
Anthracite coal is the highest grade of coal, known for its high carbon content, low volatility, and minimal impurities. It’s a hard, compact variety of coal that has a high luster and is often referred to as “hard coal”. Anthracite is extensively used in heating, industrial processes, and as a filtering material due to its unique properties.
Here’s a detailed table summarizing the typical characteristics and specifications of anthracite coal:
Fixed Carbon (%) |
Ash Content(%) max |
Volatile Material (%) max |
Sulphur (%) max |
| 92.75 % | 5.02% | 2.23% | 0.3% |
| Size : 10 -30 MM |
| Property/Specification | Description | Typical Values |
|---|---|---|
| Carbon Content | Percentage of carbon, which contributes to its energy content. | High, typically 85-95%. |
| Volatile Matter | Compounds that vaporize at high temperatures. | Very low, usually <10%. |
| Sulfur Content | Amount of sulfur, affecting environmental impact when burned. | Generally low, <1%. |
| Moisture Content | Amount of water in the coal. | Low, typically <15%. |
| Ash Content | Residual material post combustion, indicating purity. | Low to medium, around 5-15%. |
| Calorific Value | Measure of heating power. | High, approximately 25-32 MJ/kg. |
| Density | Mass per unit volume. | About 1.4 – 1.5 g/cm³. |
| Hardness | Resistance to being scratched or broken. | Very hard, difficult to break. |
| Particle Size | Size of the coal pieces, relevant for various applications. | Ranges from powder to large lumps. |
| Burn Rate | Speed at which coal burns, affecting heat release. | Slow, consistent burn rate. |
Applications:
- Home Heating: Due to its high energy content and slow burning rate.
- Industrial Processes: Used in metallurgical processes and as a reductant in steelmaking.
- Water Filtration: As a filter media for water treatment because of its high porosity and adsorption capabilities.
- Power Generation: In power plants, though less common than other coal types due to its rarity.
- Steel Industry : For addition of carbon content in steel making process
Handling and Safety:
- Storage: Should be stored in a dry, well-ventilated area to prevent moisture absorption and spontaneous combustion.
- Safety Precautions: Dust masks and protective gear are advised to avoid inhalation of coal dust.
Anthracite coal’s high carbon and low sulfur content make it a cleaner-burning coal compared to other types, resulting in less pollution and ash residue. Its high calorific value and slow burn rate make it an efficient and long-lasting fuel source, though its higher cost and limited availability compared to other coal types are considerations for its use.
