Mathematical modelling of carbonisation in Metallurgical coke making process

The earbonisation mechanism in the coke oven chamber is quite complex and. although much useful
information has been generated by empirical studies on both industrial batteries and pilot ovens, attempts to
mathematically model the coke oven phenomena met with only limited success In this study. mathematical models
of coal carbonisation in the coke oven have been developed. Models for thermo-physical properties (e.g specific
heal. density. and thermal conductivity) and heat of carbonisation reaction of coal during thermal decomposition to
coke have been constructed in terms of the changes in the chemical composition and structure. To have sufficient
generality for the applications to coke oven practices. the model describes the kinetics of release of main volatile
matter constituents. thereby. permitting the changes in the mass and composition of solid residue to be estimated by
element balances. Correlations for the parameters of the models are derived so that prediction of volatile matter
evolution can be made from coal ultimate analysis and heating profile. The computer based model predictions are in
reasonable agreement with the experimcntal data gencrated by conducting pertinent experiments and literature
information. The models of thermo-physical properties