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Photonics Dictionary

carbonization

Carbonization is a process in which organic materials are heated in the absence of air, leading to the decomposition of the material and the production of carbon-rich residue. During carbonization, volatile components such as water, gases, and other organic compounds are driven off, leaving behind a solid residue composed mainly of carbon.

Key features of carbonization include:

Absence of air: Carbonization occurs in an environment devoid of oxygen or air, preventing the organic material from undergoing combustion. This absence of oxygen inhibits the complete breakdown of the material into ash and allows the carbon-rich residue to form.

Heat-induced decomposition: The organic material is subjected to elevated temperatures, typically in the range of several hundred to over a thousand degrees Celsius, depending on the specific conditions and the material being processed. This heat induces chemical changes in the material.

Carbon-rich residue: The final product of carbonization is a residue that is enriched in carbon content. This residue may take various forms, such as charcoal, coke, or carbonized biomass, depending on the starting material and the intended use of the resulting carbonized product.

Carbonization processes are applied in various industries and contexts:

Charcoal production: Wood, peat, coconut shells, and other plant-based materials can undergo carbonization to produce charcoal. Charcoal is often used as a fuel source and in industrial processes.

Metallurgical processes: Carbonization is employed in the production of coke, a carbon-rich material used as a fuel and reducing agent in metallurgical processes, particularly in the production of iron and steel.

Biomass conversion: Carbonization of biomass, such as agricultural residues or waste, can be used to produce biochar, a carbon-rich material that can enhance soil fertility and carbon sequestration.

Archaeological and geological processes: Carbonization can occur naturally in certain geological and archaeological contexts, preserving organic materials in a carbonized state over extended periods.

 

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