Electrothermal Carbonization
Electrothermal carbonization is an important method and process of organic solid waste treatment. It is thermally and electrically processed in organic substances and their residues, mainly from agriculture and forestry waste, but also from food processing, especially animal and plant oil residuals, etc., until it becomes a medium to high temperature black solid carbon charcoal. It is a renewable energy, cleaning and waste recycling technology. It can reduce environmental pollution, improve the utilization efficiency of resources and energy, and develop industrial products and technologies for new energy, environmental protection and material utilization.
Electrothermal carbonization mainly uses the principle of thermal decomposition to treat the raw material. The raw material enters the high temperature retort chamber (usually above 600°C), and is electrolyzed, heated, oxidized and decomposed by the induction of electricity and temperature. During the thermal decomposition, the organic components of mixtures including carbon, hydrogen, and oxygen bond together and disintegrate, generating carbon-rich products such as coke and carbon black with good solubility. The whole process of thermal decomposition is basically similar to the incomplete combustion of raw materials, producing combustible gases such as hydrogen, methane and carbon monoxide, as well as combustible liquids such as tar and wood vinegar.
The main advantages of electrothermal carbonization technology are its high energy utilization, low energy consumption and low cost of disposal. In the electrothermal process, only a small amount of energy is needed for gasification, which can be easily recovered. This significantly reduces the cost of waste disposal. In addition, the high carbon content in the char product increases the thermal stability, which further increases its potential value in the market.
The products produced from electrothermal carbonization technology have many applications. First, the combustible gases produced by the process can be converted into heat energy used for other purposes, such as providing power for industrial heating or for domestic use. Second, the carbon black produced by the electrothermal process can be used in a variety of fields, such as thermal insulators, abrasives, paving materials and decorative paint. Finally, the combustible liquids produced can be used as alternative fuels, such as fuel oil, gasoline and diesel.
In conclusion, electrothermal carbonization has many advantages in resource utilization, energy efficiency and cost savings, and its products can be used in various applications. The technology has huge potential in the fields of energy, environment and materials, and can be developed into a promising industry.
