Char Particle Combustion in the Kinetic Regime

Abstract

The influence on carbon combustion of the microporous area and of the residues from devolatilization of macerals of original coals has been studied in chemical kinetics controlled regime.

Three chars, a metallurgical coke, a pure graphite and a synthetic carbon, widely differing in porosity, surface area and maceral composition have been examined.

Basing on experimental findings, a literature model has been modified to predict the combustion rate vs conversion Curves for all the materials tested.

Key words:

• Char
• Combustion
• Kinetic regime