Main Preparation Method of Bio Charcoal

Agricultural wastes such as rice straw, wheat straw, bean straw, corn straw and other high-fiber, low-level agricultural and forestry wastes can be used as the main raw materials for biochar. The application fields of biochar are very wide, including:

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Agriculture: as a soil conditioner to improve soil fertility and crop yields.

Environmental remediation: adsorb and fix heavy metals and organic pollutants in soil and water bodies to improve the polluted environment.

Energy storage and building materials: electrode materials for high-demand energy storage devices such as lithium-ion batteries and supercapacitors.

The preparation methods of biochar mainly include pyrolysis and hydrothermal carbonization. Pyrolysis is to heat biomass to high temperature under anaerobic conditions, while hydrothermal carbonization is to prepare biochar using hydrothermal reaction. During the preparation process, factors such as carbonization temperature, carbonization rate, carbonization pressure, reaction residence time, and catalyst used will affect the properties and yield of the final biochar.