What is the latest technology for making charcoal?

In the pursuit of efficient and sustainable charcoal production, several new charcoal technologies have emerged: internal heat dry distillation carbonization technology, microwave carbonization technology, and catalytic carbonization technology. These technologies not only improve the quality of charcoal, but also optimize the production process of charcoal. The following is an introduction to these three technologies:

1. Making charcoal with internal heat dry distillation carbonization technology

Henan DOING latest charcoal making production technology

The internal heat dry distillation carbonization technology uses the internal combustion device of the carbonization equipment to generate heat. The whole process is carried out in an air-isolated or low-oxygen environment. The heat is transferred to the wood through the inner wall of the equipment, heating pipes, etc. At about 100℃, the moisture in the wood begins to evaporate; when the temperature rises to 200-300℃, the wood undergoes pyrolysis reaction, releasing gases such as carbon dioxide, carbon monoxide, methane, and liquid products such as wood tar and wood vinegar; the temperature continues to rise to 400-500℃, and the wood gradually turns into charcoal.

Henan DOING 3D video of the latest making charcoal technology

Raw material preparation: Carefully select suitable wood, such as hardwoods such as oak and birch, or softwoods such as pine. Remove impurities in the wood, such as bark, soil, etc., and then cut it into blocks or strips suitable for the size of the carbonization chamber. This step plays a key role in the quality of the final charcoal.

Sealed loading: Put the processed wood raw materials neatly into the carbonization furnace of the internal heat dry distillation carbonization equipment, close the carbonization furnace door, and ensure good sealing. Henan DOING uses an oxygen-free carbonization furnace to improve the quality of charcoal.

Temperature control: Henan DOING starts the heating device through the control system, and gradually increases the temperature in the carbonization chamber according to the pre-set temperature rise curve. In the initial stage, the temperature rise rate should be slow, generally at a rate of 5-10℃ per minute, which can prevent the wood from cracking due to rapid heating. As the pyrolysis and carbonization stages advance, the temperature rise rate can be increased to 10-15℃ per minute to speed up production efficiency.

Cooling and charcoal removal: When the predetermined carbonization temperature and time are reached, stop heating. There are two cooling methods, one is natural cooling, which may take several hours or even more than ten hours; the other is rapid cooling through the Henan DOING cooling system, which can be completed in about 0.5-1 hour. After cooling is completed, open the carbonization chamber door and take out the fired charcoal.

Henan DOING's charcoal making machine advantages

Henan DOING's charcoal making machine is made of fully enclosed double-layer Q345r carbon steel, and stainless steel (customization is also available), which is resistant to high temperature and high pressure; it is fed by spiral, has a high degree of automation, and efficiently produces high-quality charcoal, and meets international safety and environmental standards.

2. Microwave technology to make charcoal

Microwave charcoal making technology principle

Microwave charcoal making technology relies on the high-frequency electromagnetic field of microwaves. When microwaves act on wood, polar molecules in the wood, such as water molecules and organic molecules, will move rapidly in the microwave field to generate frictional heat, causing the wood to heat up rapidly for carbonization.

Microwave making charcoal machine demonstration

Wood preparation: Cut the wood into appropriate sizes, preferably no more than 5 cm thick and no more than 30 cm long, which is conducive to the effective penetration of microwaves and ensures that the wood is evenly heated.

Parameter adjustment: Put the wood into the reaction chamber of the specially designed microwave carbonization equipment, and adjust the microwave power (usually between 1-10kW) and heating time (usually 5-30 minutes) according to the type, quantity and desired carbonization degree of the wood.

Real-time monitoring: Use the observation window or monitoring system of the equipment to closely monitor the carbonization process. Once it is found that the wood is partially over-carbonized or under-carbonized, the parameters can be adjusted in time.

Cooling and charcoal removal: After the carbonization is completed, turn off the microwave equipment and let the reaction chamber cool naturally to room temperature. This process takes about 10-30 minutes. After cooling, take out the charcoal.

Points to note: The moisture content of the wood cannot be too high, otherwise it will affect the carbonization effect, and it is strictly forbidden to put metal objects into the reaction chamber to avoid danger.

3. Catalytic technology to make charcoal

Principle of catalytic making charcoal technology

Catalytic making charcoal technology is to add specific catalysts during the carbonization process of wood. Common ones are alkali metal compounds (such as potassium carbonate, sodium carbonate), transition metal oxides (such as copper oxide, iron oxide), etc. These catalysts can reduce the activation energy of wood pyrolysis and carbonization reactions and promote rapid carbonization of wood at a lower temperature of 250-400℃.

Catalytic making charcoal machine display

Catalyst preparation: Select a suitable catalyst and prepare it into a solution or powder. For example, when using potassium carbonate as a catalyst, it can be prepared into a 10%-20% aqueous solution.

Wood impregnation: Soak the wood in the catalyst solution for 12-24 hours to ensure that the catalyst fully penetrates into the wood.

Carbonization reaction: Put the treated wood into a professional carbonization equipment and heat it according to the optimized process parameters.

Subsequent treatment: After carbonization, the charcoal is cleaned, dried, etc. to remove residual catalysts and impurities to obtain high-purity charcoal.

Key points: This method requires special equipment and chemical treatment, and the initial investment is relatively large.

Henan DOING latest charcoal production technology

Whether you are a company or an individual, the above latest charcoal production technology can bring you new opportunities. Henan DOING's internal heat dry distillation carbonization technology can accurately control the temperature, heat evenly, and improve the quality and production stability of charcoal. It provides a strong guarantee for your production efficiency. If you have any questions about these technologies, please feel free to contact us.