
A straw charcoal machine converts agricultural residues—such as straw, husks, and stalks—into thousands of tons of biochar annually. Produced through controlled pyrolysis, the biochar meets European Biochar Certificate (EBC) standards, making it ideal for soil amendment and long-term carbon sequestration. This solution advances sustainable agriculture, a circular economy, and climate change mitigation.
Why Choose Straw to Charcoal Solution? – A Comparative Analysis
Annually, billions of tons of agricultural straw waste are generated worldwide, with corn straw, rice straw, and sugarcane bagasse being the most prevalent. Traditional disposal methods have limitations. The straw charcoal making machine (bichar making machine) offers a sustainable alternative, benefiting both the environment and economy.
| Treatment Method | Environmental Impact | Utilization Rate | Soil Improvement Effect | Economic Value | Notes |
|---|---|---|---|---|---|
| Burning | ❌ Very Poor | ❌ Low | ❌ Harmful | ❌ None |
|
| Straw Returning | ⚠️ Moderate | ⚠️ Medium | ⚠️ Short-term effects | ⚠️ Moderate |
|
| Feed Processing | ✅ Sustainable | ⚠️ Medium | ➖ No direct effect | ⚠️ Moderate |
|
| Power Generation | ✅ Sustainable | ⚠️ Medium | ➖ No direct effect | ⚠️ Moderate |
|
| Biochar Production | ✅✅ Excellent sustainability | ✅ High | ✅ Great improvement | ✅ High |
|
Beston Biomass Pyrolysis Technology Meets Puro.earth Standards
The biomass pyrolysis technology developed by Beston Group has been vetted by Puro.earth, a leading global platform for carbon removal. By deploying our vetted straw charcoal machine (BST-50S model), businesses can not only generate value from agricultural waste but also participate in the international carbon market.

Parameters of Straw Charcoal Machine

BST-50S Model
- BST-50S technology vetted by Puro.earth
- 6,000 tons biochar production annually
- 7200H/Y stable&safe operation
- 4 configuration options

BST-06 Model
- 8000H/Y stable&safe operation
- Low-cost carbon removal process verification
- Small-scale test machine
- 2 configuration options
| Model | BST-50 Standard | BST-50 Max | BST-50S | BST-06 Quicker |
|---|---|---|---|---|
| Operating Mode | Continuous | Continuous | Continuous | Continuous |
| Application | Commercial-scale | Commercial-scale | Commercial-scale | Pilot Testing |
| Certification Platform | Isometric, Rainbow | Isometric, Rainbow | Puro.earth, Isometric, Rainbow | Rainbow |
| Reactor Material | Staineless Steel 304 | Staineless Steel 304 | Staineless Steel 310s | Staineless Steel 304 |
| Feedstock Moisture | Below 15% | From 15% to 55% | From 15% to 55% | Below 15% |
| Feedstock Size | 5-20mm | 5-20mm | 5-20mm | 5-20mm |
| Feeding Capacity (only for pyrolysis) | 10-15m³/h | 10-15m³/h | 10-15m³/h | 100-200KG/H |
| Max. Pyrolysis Temperature (Combustion Chamber) | 650℃ | 650℃ | 700℃ | 650℃ |
| Residue Retention Time | 15-20 minutes | 15-20 minutes | 15-20 minutes | 15-20 minutes |
| Operating Pressure | -20 - 0 pa | -20 - 0 pa | -20 - 0 pa | -20 - 0 pa |
| Cooling Method | Water | Water | Industrial Refrigeration Units | Water |
| Exhasut Gas Treatment | Standard | Standard | High Performance | Standard |
| Biochar Temperature | 45℃ | 45℃ | 45℃ | 45℃ |
| Annual Operating Hours | >7200hrs | >7200hrs | >7200hrs | >7200hrs |
| Service Life | 5-8 years | 5-8 years | 8-10 years | 5-8 years |
| Land Space Required (L*W*H*m) | 35*15*8 | 65*15*8 | 65*15*8 | 35*15*8 |
| Power Consumption | 121kw/h | 270-288kw/h | 270-304kw/h | 25.1kw/h |
| Water Consumption | 5-7m³/day | 5-7m³/day | 0 | 3-5m³/day |
| Fuel Consumption | 220-260m³/h | 220-260m³/h | 220-260m³/h | 30-50m³/day |
| Installation Period | 60 days | 60 days | 60 days | 7 days |
BST-50S: 6,000 Tons Biochar / Year = 12,000 Tons CO₂ Sequestration

Advanced Technologies Behind BST-50S: Support Carbon Sink Potential

Tar Dust Self-cleaning System
Pipe insulation prevents the condensation of tar and wood vinegar, avoiding blockages. The nitrogen purging system prevents the accumulation of high-temperature dust and pipe blockages.
Key Effect: