2025-05-04

🌿 Can You Make High-Efficiency Biomass Pellets Using Just Napier Grass and Coconut Shell?

Creating biomass pellets using only Napier Grass (75%) and Coconut Shell (25%) is not only possible β€” it’s also efficient when processed correctly. This blend offers a balance between ease of pelletization, good energy output, and moderate ash content.



πŸ”¬ Estimated Properties of Napier Grass (75%) + Coconut Shell (25%) Pellet

PropertyValue RangeNotes
Ash Content (%)6.5 – 7.5%Napier (5–8%), Coconut Shell (1.5–2%)
GCV (kcal/kg)4200 – 4400High calorific output with clean burn
Carbon Content (%)45 – 48%Enhanced by coconut shell’s lignin-rich structure
Volatile Matter (%)68 – 72%From Napier – helps ignition
Density (kg/mΒ³)650 – 700Ideal for transport and storage
Pellet DurabilityGoodCoconut Shell adds mechanical strength
Moisture Feed Limit12–15%Final pellet should be <10% moisture

βœ… Why This Blend Works

  • Napier Grass: Excellent binder, high volatile content.
  • Coconut Shell: Improves energy value and pellet hardness, reduces ash.

πŸ” Optional Optimization – Two-Ingredient Tweak

For better results:

  • Napier Grass: 65–70%
  • Coconut Shell: 30–35%

Improved Results:

  • Ash Content ↓ to ~6%
  • GCV ↑ to ~4500 kcal/kg
  • Durability ↑ for industrial usage

βš™οΈ Essential Equipment

  • Dewatering Screw Press (for wet Napier)
  • Flash or Rotary Dryer
  • Hammer Mill (<3 mm screen)
  • Ribbon Mixer
  • Ring Die Pellet Mill (1:6 to 1:8 ratio)
  • Counterflow Cooler

πŸ’‘ Best Practices

  • Uniform grinding (<3 mm)
  • Consistent moisture (12–15%)
  • Final moisture <10%
  • Use clean, sorted coconut shell (no husk)

πŸ”₯ Optimized Mix-Match Suggestions (if using 3 materials)

πŸ”Ή Option 1 (High Efficiency)

  • Napier Grass: 60%
  • Coconut Shell: 20%
  • Wood Sawdust: 20%
    πŸ‘‰ GCV ↑ 4400–4600 kcal/kg | Ash ↓ 5.5–6%

πŸ”Ή Option 2 (Budget Friendly)

  • Napier Grass: 70%
  • Coconut Shell: 20%
  • Groundnut Shell/Corncob: 10%
    πŸ‘‰ Balanced cost | Ash ~6.5% | GCV ~4400 kcal/kg


πŸ“ž Contact Us for Biomass Solutions
πŸ“ Servoday Plants & Equipments Ltd;
πŸ“ž +91 9427210483 | +91 9427210484
πŸ“§ sanjay@servoday.in
🌐 www.PelletIndia.com
πŸ‘€ Contact Person: Sanjay Masuria
πŸ“² WhatsApp: +91 9427210483


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