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.

The professional experimental testing team can provide experiments and testing of various key data such as fixed carbon content and ash content. Provide you with reliable solutions.

Comapny profile:
xuye Machinery is a comprehensive enterprise that comprises R& D, test, manufacture, sales and service functions. We have succeeded in researching and supplying solutions with the following equipment: Drying equipment, activated carbon production equipment, building materials equipment, beneficiation equipment, crushing equipment and other products.The activated carbon regeneration equipment produced by our factory is divided into granular activated carbon regeneration equipment, powdered activated carbon regeneration equipment, hazardous waste activated carbon regeneration equipment, and solid waste activated carbon regeneration equipment, which can be customized according to the user's situation.
With our leading-edge technologies, advanced processing equipment and our corporate spirit of "innovation, pragmatism, unity, hard work and dedication", our company has the strength to meet the challenges from all aspects. We have the confidence to build "Baoyuan" into a world-renowned brand, provide quality services for the dryer and building processing industry, and achieve a win-win situation between the company and customers.