Biomass briquettes are reshaping the energy trade landscape. Crafted from organic residues like sawdust, rice husk, and nut shells, these compact fuel blocks deliver consistent performance and eco-friendly credentials. For exporters and importers, understanding key product metrics ensures a competitive edge.
Product Knowledge: Core Technical Figures
Moisture Content and Water Activity
Top-quality briquettes hold moisture between 5–10 %, enabling efficient combustion and preventing microbial growth
Calorific Value (Heating Potential)
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Standard rice husk briquettes: 14,300–14,500 kcal/kg (≈59–61 MJ/kg) .
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Cashew shell briquettes: 29.5 MJ/kg (~7,050 kcal/kg) with low moisture (5.3 %) and ash (4.96 %)
Ash Content
Low ash output is critical for boiler efficiency:
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Adhesive-enhanced briquettes record 5–8 % ash, depending on binders
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Cashew shell briquettes report a cleaned ash of 4.96 %, meeting major SNI and ISO standards
Fixed Carbon and Volatile Matter
Density and Durability
Densification ensures consistent density (~1 t/m³ for extrusion types) and integrity during shipping .
Ignition and Burn Rates
Briquettes ignite in 66–111 seconds with burn durations of 27–39 minutes depending on biomass blends
Advanced Features: Torrefaction and Extrusion
Torrefied briquettes offer a step-up in performance:
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Lower heating value reaches 20–21 GJ/ton (~5,500–5,800 kcal/kg), become hydrophobic, and resist spoilage
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Extruded forms with density 1.0–1.2 t/m³ provide stable size and uniform burn characteristics
Export Relevance: Why Metrics Matter
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Efficiency and cost transparency: Moisture, calorific value, and ash metrics determine energy output per kilogram—essential for client cost calculations.
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Regulatory compliance: Standards like SNI, ISO 17225, and Japanese/Japanese-English benchmarks demand moisture < 10 %, ash < 7 %, and calorific value > 5 000 kcal/kg
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Logistics and reliability: High density, uniform durability, and hydrophobic traits reduce transport costs and strengthen shelf resilience.
Strategic Export Recommendations
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Test rigorously: Include moisture, heating value, ash, and fixed carbon reports in every shipment.
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Choose best biomass and binder mix: Optimize for low ash and high calorific output.
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Consider torrefaction/extrusion steps: For premium markets, offer hydrophobic and dense briquettes.
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Highlight standards: Emphasize compliance with global norms (ISO/SNI/JIS) in spec sheets.
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Provide traceable specs: Use batch-coded, sealed samples with lab reports accompanying each FOB container.
By showcasing precise metrics—moisture ≤10 %, calorific value ≥14 000 kcal/kg, and ash ≤5 %—exporters position biomass briquettes as a reliable, high-performance solid fuel. Meeting international standards and packaging these figures boosts buyer trust and opens new export opportunities.
For lab testing setup, spec templates, or export certification support, visit site:exportimport.guru or connect via WhatsApp: https://wa.me/918128111191.
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