RB1 Coal Specification Parameter Unit Typical RB1 Value Calorific Value (NAR) kcal/kg 6,000 min (6,300–6,500 typical) Total Moisture (AR) % ≤ 12% Ash (adb) % ≤ 12% Volatile Matter (adb) % 22–25% Fixed Carbon (adb) % 55–58% Sulphur (adb) % ≤ 0.8% (0.5–0.7 typical) HGI Index 45–55 Size mm 0–50 mm or 25–50 mm Chlorine % ≤ 0.05 Application: RB1 High-grade thermal Power plants (high efficiency), cement, industry
RB1 is a high-grade thermal coal primarily used for power generation and large-scale industrial applications, known for its high calorific value and low sulfur content. This makes it a cost-effective and cleaner-burning fuel compared to lower grades like RB2 and RB3. Key specifications often include a calorific value of 6000+ kcal/kg, moisture under 12%, and sulfur content below 1%.