Customization: | Available |
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After-sales Service: | Provide |
Warranty: | One Year |
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The carbonization process in a Biochar kiln can generally be divided into the following three temperature stages:
Drying Stage: From ignition to the furnace temperature reaching 160°C, the moisture content in the briquettes relies mainly on external heating and heat generated from their own combustion for evaporation. The chemical composition of the briquettes remains largely unchanged during this stage.
Initial Carbonization Stage: This stage is driven primarily by the combustion of the briquettes themselves, raising the furnace temperature to between 160°C and 280°C. At this point, thermal decomposition reactions occur in the woody material, leading to changes in its composition. Unstable components such as hemicellulose undergo decomposition, producing substances like CO2, CO, and small amounts of acetic acid.
Full Carbonization Stage: This stage occurs within the temperature range of 300°C to 650°C.During this stage, the woody material undergoes rapid thermal decomposition, simultaneously generating significant amounts of liquid products such as acetic acid, methanol, and wood tar. Additionally, combustible gases like methane and ethylene are produced. These gases can be controlled and utilized through valves for cyclic combustion. The combined processes of thermal decomposition and gas combustion generate a substantial amount of heat, raising the furnace temperature. The woody material is distilled into charcoal under high temperatures.
For the production of high-temperature charcoal, apart from the three stages mentioned above, additional heat is applied to raise the furnace temperature further to around 800°C to 1000°C. This helps to expel volatile substances remaining in the charcoal, increase the carbon content, enhance the graphite structure within the charcoal, and improve its conductivity.
Model |
800 |
1000 |
1200 |
1500 |
1800 |
2000 |
Number of cylinder layers |
Single |
Single |
Double |
Double |
Double |
Double |
Cylinder diameter |
800mm |
1000mm |
1200/700mm |
1500/900mm |
1800/1200mm |
2000/1500mm |
Capacity |
200-300kg/h |
300-400kg/h |
450-600kg/h |
600-800kg/h |
800-1000kg/h |
1000-1200kg/h |
Cylinder material |
309S/310S/316L |
309S/310S/316L |
309S/310S/316L |
309S/310S/316L |
309S/310S/316L |
309S/310S/316L |
Power |
1.5kw |
2.2kw |
5.5kw |
7.5kw |
11kw |
15kw |
Temerature |
500-800ºC |
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Carbonization time |
20-60min |
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Raw material particle size |
≤4cm |
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Heating method |
indirect heating |
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Operation mode |
continuously working |
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Control method |
PLC control |
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Induced draft fan power |
1.5kw |
2.2kw |
7.5kw |
11kw |
18.5kw |
22kw |
Preheat burner model |
10kcal×3 |
10kcal×4 |
15kcal×4 |
20kcal×4 |
30kcal×4 |
30kcal×6 |
Preheat burner fuel |
Fuel oil/gas/biomass/coal gas/biomass synthesis gas |
Coconut shell
|
Walnut shell
|
Hazelnut shell
|
Wood chips
|
Bamboo
|
Coconut shell charcoal
|
Shell charcoal
walnut
|
Hazelnut shell charcoal
|
Wood chips charcoal
|
Bamboo charcoal
|
Palm kernel shell
|
Pits of olives
|
Pits of date
|
Peach Shell
|
Hawthorn Seed
|
Palm kernel charcoal
|
Pits of olives charcoal
|
Pits of date charcoal
|
Peach Shell charcoal
|
Hawthorn Seed charcoal
|