Modern biomass carbonization plant can efficiently convert biomass into solid charcoal by pyrolysis. It is able to produce clean energy and reduce carbon emissions. The raw material sources of Mingjie biomass pyrolysis machine are widely applicable to bamboo, wood, rice husks, straw, nut shells, coconut shells, palm shells, sawdust, bagasse, etc.
In an oxygen-free or oxygen-limited environment, biomass waste undergoes a series of pyrolysis reactions to achieve biochar and syngas conversion. Combustible gas is used for its own use, the flue gas generated during the carbonization process is also reused. Therefore, the biomass carbonization process is environmentally friendly and smokeless, which not only improves the working environment, but also promotes the efficiency of the carbonization furnace.
As a professional pyrolysis plant manufacturer, Mingjie Group offers pyrolysis solutions for different types of biomass. Please tell us the project you want to handle, and we will recommend you the suitable biomass carbonization equipment.
Biomass Carbonization Plant for Sale
According to the different biochar making machine structures, Mingjie biomass carbonization plant can be divided into skid-mounted small carbonization equipment and modular continuous biomass carbonization plant.
The skid-mounted biomass carbonization plant adopts a single-barrel reactor structure, and the modular fully continuous carbonization equipment adopts a double-barrel design.
The double-barrel reactor can improve the continuity and reliability of the use of pyrolysis equipment, and realize the integration of material drying and carbonization. The inner barrel realizes material drying, and the outer barrel heating zone realizes material pyrolysis and carbonization. It can ensure that the content of the produced biomass carbon meets the ideal requirements.
Biochar Making Machine Technical Specifications
| Model | MJT-100 | MJT-500 | MJT-1000 | MJT-2000 | MJT-3000 | MJT-5000 |
| Input Capacity | 50-100kg/h | 300-500kg/h | 800-1000kg/h | 1500-2000kg/h | 2500-3000kg/h | 4500-5000kg/h |
| Structure | Skid Mounted | Modularized | Modularized | Modularized | Modularized | Modularized |
| Reactor Type | Single Layer | Dual cylinder | ||||
| Working Method | Fully Continuous | |||||
| Reactor Material | 304 Stainless steel | |||||
| Feedstock Size | <20mm | |||||
| Feeding Moisture | <15% | |||||
| Initial Heating Oil Consumption | 20L | 30-40L | 35-50L | 50-70L | 80-90L | 120-140L |
| Land Area | L12m*W2.5m | L29m*W12m | L34m*W13m | L36m*W15m | L42m*W15m | L50m*W18m |
If you’re interested in purchasing or learning more about biomass pyrolysis machines, you can contact Mingjie Biomass Carbonization Plant Manufacturer. Let me know if you need help finding specific models!
Advantages of Mingjie Biomass Carbonization Plant
- The reactor is a double-layer design, and the heat utilization rate is more than doubled compared with the single-layer external heating structure.
- The material is 100% 310S stainless steel, which can withstand a wider range of temperature changes and extend the service life of the equipment.
- The fully enclosed heating chamber meets higher environmental protection standards.
- Hot air heating, the flame will not contact the main machine, making the heating more uniform and helping to extend the service life of the machine.
- The main machine and pipeline are pre-installed, and the installation can be completed within one month, which helps to save time and cost.
- Higher standard emission cleaning system, including wet scrubber, activated carbon treatment, ultraviolet light, etc.
- The special sealing system makes the equipment safer and the performance more stable.
Biomass Carbonization Equipment Application
Biomass pyrolysis carbonization equipment converts biomass into high value-added product biochar through high temperature pyrolysis technology. At the same time, the biomass pyrolysis cycle project can also realize the innovative project of resource recycling and carbon reduction.
Biomass, as a rich renewable resource, is widely found in agricultural waste (straw and rice husk), forestry waste (wood chips and bark), and urban organic waste. Biomass carbonization can not only realize the resource utilization of waste, but also play an important role in soil improvement and carbon sequestration.
Pyrolysis Process of Biomass Carbonization Plant
Waste biomass pyrolysis technology is a method of heating agricultural waste at high temperature under anaerobic conditions, decomposing and converting it into biochar. Generally, the waste biomass raw materials need to be crushed and dried. Ensure that the feed size is crushed to less than 20mm and the moisture content is reduced to less than 15% to improve the pyrolysis efficiency.
During the pyrolysis process, there will be different reaction stages inside the biomass pyrolysis equipment depending on the temperature range. For example, in the range of 250℃ – 750℃, the carbohydrate structure of biomass waste disintegrates to produce biomass charcoal, wood vinegar and combustible gas.
3 Stages of Pyrolysis Process
Drying stage: The temperature is below 150℃, and the water content of the biomass raw materials evaporates by external heat supply.
Endothermic pyrolysis stage: 150-300℃, the raw materials begin to decompose and release gaseous products (such as CO, CO₂, H₂S). The chemical composition of the raw materials begins to change, and different materials begin to pyrolyze at different temperatures. The materials with low degree of deterioration also begin to pyrolyze at a lower temperature.
Carbonization stage: The temperature is 300-600℃, and polycondensation and thermal decomposition reactions are the main reactions. A large amount of volatile matter is precipitated from the biomass raw materials, and the products precipitated during the carbonization process (such as tar, methanol, and ethylene) are all produced in this stage.
Key Points in the Pyrolysis Process
The key conditions in the pyrolysis process are pyrolysis temperature, holding time and heating rate.
Pyrolysis Temperature
Biochar preparation is usually carried out at 300-800 ℃, and the characteristics of biochar prepared at different temperatures will vary greatly.
The biochar yield obtained at low temperature (300-400 ℃) is high, but the pore structure is generally not obvious.
Biochar at high temperature (400-800 ℃) has a rich pore structure and a large specific surface area. It has better adsorption performance, but the yield may be reduced.
Insulation Time
After the pyrolysis temperature reaches the target temperature, it needs to be maintained for a period of time. This ensures that the raw materials are fully decomposed and formed stable biochar structure. The length of the holding time will affect the degree of carbonization and the properties of the biochar.
Heating Rate
The carbonization heating rate has a great influence on the yield of carbonization products. A high heating rate can make the material precipitate more tar and coal gas, reducing the yield of carbonized materials.
Slow heating (such as 5-10 ℃/min) helps to control the pyrolysis process and reduce the generation of tar and gas caused by too fast cracking. It can improve the yield and stability of biochar.
When the heating rate is reduced, the material is heated for a long time in the low temperature zone, and the selectivity of the pyrolysis reaction is stronger. The initial pyrolysis breaks the weaker bonds in the material molecules, and parallel and sequential thermal polycondensation reactions occur, forming a structure with high thermal stability. This reduces the yield of volatiles in the high-temperature stage of thermal decomposition, and obtains a higher yield of solid carbonization products (carbonized materials).