✔️ High Ash Content: Leads to slagging and fouling in combustion systems.
✔️ Abrasive Nature: Causes excessive wear on pellet mill dies and rollers.
✔️ Low Energy Density: Results in poor combustion efficiency.
✔️ Hard to Pelletize: High friction makes densification difficult.
| Biomass Type | Silica Content (%) | Issues in Pellet Making |
|---|---|---|
| Rice Husk | 15-20% | High wear on die & rollers, slagging during combustion |
| Paddy Straw | 10-15% | Poor binding properties, high ash formation |
| Wheat Straw | 8-12% | Low bulk density, difficult to pelletize |
| Bagasse | 4-7% | Less binding due to lower lignin, high ash formation |
🚫 Excessive machine wear and tear, increasing maintenance costs.
🚫 Low-quality pellets with high ash content and poor durability.
🚫 Slagging in boilers due to low silica melting temperatures.
🚫 Difficulties in achieving high compaction.
✔️ Blend with high-lignin materials like wood chips or sawdust (30-50%).
✔️ Use binders such as starch, molasses, or lignin additives to enhance cohesion.
✔️ Poor Binding Property: Lignin acts as a natural binder, its absence makes pelletizing difficult.
✔️ Brittle Pellets: Pellets break easily due to weak internal bonding.
✔️ Lower Energy Density: Reduced lignin results in lower calorific value.
✔️ Dust Generation: More dust during pellet handling.
| Biomass Type | Lignin Content (%) | Issues in Pellet Making |
|---|---|---|
| Rice Husk | 5-8% | Weak binding, fragile pellets |
| Corn Stover | 7-10% | High dust, poor durability |
| Cotton Stalk | 10-12% | Low durability, high moisture sensitivity |
| Sugarcane Bagasse | 12-15% | Soft pellets, prone to breaking |
🚫 Weak pellets that disintegrate quickly.
🚫 Low heat generation due to poor energy density.
🚫 Increased chances of jamming in pellet mills.
✔️ Blend with high-lignin materials like hardwood sawdust or bark (30-50%).
✔️ Apply heat treatment during pelletizing to improve lignin plasticization.
✔️ Use natural binders like starch or bentonite to enhance pellet strength.
✔️ High-Silica Biomass should not be used alone due to wear issues and slagging. Blend with wood chips or sawdust.
✔️ Low-Lignin Biomass results in fragile pellets. Blend with high-lignin materials for better strength.
✔️ Optimal Mix: 30-50% high-lignin biomass (wood waste, bark, sawdust) with 50-70% low-lignin/high-silica biomass ensures durability, efficiency, and cost-effectiveness.
✔️ Use of Binders: Starch, molasses, or synthetic binders improve pellet cohesion.
🔹 Contact Person: Sanjay Masuria
📞 Phone: +91 9427210483, +91 9427210484
📍 Company: Servoday Plants & Equipments Ltd, Jamnagar, Gujarat
🌐 Website: www.PelletIndia.com
📧 Email: [email protected]
💬 WhatsApp: Click to Chat
