Coconut Shell Specification
1. Physical Characteristics:
Appearance: Hard, woody shell; brown to dark brown
Form: Whole, half-cut, crushed, or granulated (based on application)
Texture: Rigid, fibrous, and brittle when dry
Density: ~1.2–1.4 g/cm³ (solid form)
2. Moisture Content:
Maximum: 10% (for raw shells)
Preferred: Below 8% for fuel or activated carbon use
3. Ash Content:
Typical Range: 0.5% to 2%
Lower ash content preferred for activated carbon production
4. Volatile Matter:
Typical Range: 10% to 15%
5. Fixed Carbon:
Typical Range: 75% to 80%
High fixed carbon is ideal for carbonization processes
6. Calorific Value (Energy Content):
Typical: 4,800 to 5,000 kcal/kg (gross calorific value)
Suitable for use as biofuel or charcoal production
7. Size (if graded):
Granule Sizes: 2–4 mm, 4–6 mm, 6–12 mm, etc. (customized as needed)
Crushed Shells: Available in mesh sizes for industrial use
8. Impurities:
Maximum: 2%
Includes fibers, dust, and foreign matter
9. Odor:
Natural, woody scent
Free from moldy, rancid, or chemical odors
10. Packaging:
Common Materials: Gunny bags, PP woven sacks
Standard Weight: 25 kg / 50 kg bags or jumbo bags for bulk export