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Biomass Briquettes (White Coal)

Compressed biomass briquettes (90mm diameter), commonly known as white coal in India, manufactured from agricultural waste in Kadi, Gujarat. A coal alternative for small-to-medium industrial furnaces, brick kilns, and manual-fired boiler systems.

What are biomass briquettes (white coal)?

Biomass briquettes, widely referred to as "white coal" in industrial markets across Gujarat, are large-diameter (90mm) compressed fuel blocks made from dry agricultural residues such as cotton stalks, groundnut shells, sawdust, and mustard husk. Unlike automated micro-pellets, white coal briquettes are engineered for manual-fed industrial boilers, downdraft kilns, and brick manufacturing chambers. They offer 3800–4200 Kcal/kg GCV with low ash content (under 10%), making them a renewable agro-residue replacement for black coal. Values are BBI's own specification, confirmed by a batch lab report on request. Bharat Bio Industries manufactures these briquettes at our facility in Kadi, Gujarat.

Technical Specifications

ParameterValue
Raw MaterialAgricultural Residue Biomass
Calorific Value (GCV)3800–4200 Kcal/kg *
Moisture Content<10%
Ash Content2–8% (max <10%)
ShapeCylindrical
Briquette Diameter90 mm
Briquette Length100–300 mm
Bulk Density>500 kg/m³
Sulphur Content<0.1%

Typical Applications

  • Small industrial furnaces
  • Brick kilns
  • Ceramic unit kilns
  • Bakery ovens
  • Laundry boilers
  • Food processing units
  • Agricultural dryers

Briquettes vs Pellets — When to Choose What?

Briquettes are ideal when your furnace accepts larger fuel pieces and doesn't require automated pellet feeding systems. They are easier to handle manually and usually cost less per kg. Burn time depends on density, feed rate and furnace design, so we suggest a 25 MT trial. For automated boiler systems and power-plant blending, pellets are the better choice because of their uniform size.

Brick Kiln & Industrial Furnace Compatibility

BBI biomass briquettes (white coal) are used in Hoffman brick kilns, downdraft chambers, refractory ovens, and traditional horizontal-grate boilers. The 90mm diameter gives a steady release of heat in kilns designed for solid fuel. Whether it suits your firing curve in clay brick, vitrified tile and ceramic production, as in Morbi and Rajkot, depends on your kiln, so test a 25 MT trial first.

An honest trade-off

Higher-grade coal (G-8 and above) carries more heat per kg than white coal, so you need more white coal by weight for the same heat. Compare on cost per million Kcal with our fuel cost calculator.

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Why white coal

Why white coal — backed by official data

  • Lower ash

    Indian coal ash is generally 25–45% (Ministry of Coal). BBI briquettes: below 10% (BBI specification).

    Source: PIB, Ministry of Coal

  • Comparable heat to lower coal grades

    Coal grades G-12 and G-11 are 3700–4300 Kcal/kg (Ministry of Coal). BBI briquettes: 3800–4200 Kcal/kg (BBI specification).

    Source: Ministry of Coal, coal grades

  • Lower GST rate

    Biomass briquettes and solid bio fuel pellets: 5% GST. Coal: 18% since 22 September 2025. As of October 2026; confirm with your tax advisor.

    Source: PIB, Ministry of Coal (GST Council)

Read the full comparison with sources
Common Questions

White Coal Briquettes — FAQ

What is white coal / biomass briquette?

White coal is a compressed 90mm biomass briquette made from agricultural waste. GCV 3800–4200 Kcal/kg with <10% ash — a cleaner, cheaper coal alternative for kilns and furnaces.

What is the price per ton of white coal in Gujarat?

₹6,000–₹14,000 per MT ex-factory Kadi. Final pricing depends on volume, location, and contract terms. MOQ 25 MT.

Are these suitable for Morbi ceramic kilns?

Many ceramic units use solid fuel in kilns and dryers; suitability depends on your equipment and firing profile. We suggest a 25 MT trial.

Pellets vs briquettes — which to choose?

Briquettes for manual-fed kilns and grate boilers. Pellets for automated boiler feeders and power-plant blending. Briquettes usually cost less; pellets are more uniform. Burn time depends on density, feed rate and furnace design.

What is the MOQ?

25 MT ex-factory Kadi, Gujarat. Bulk supply contracts from 50 MT/month available.

What is the ash content?

Below 10% (BBI specification), against 25–45% generally for Indian coal (Ministry of Coal via PIB). This means less slag and less grate cleaning. Batch lab report on request.

Also Available from BBI
Industrial Biomass Pellets3800–4200 Kcal/kg · <10% AshPremium Wood Pellets4400–4800 Kcal/kg · <1% Ash

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