Ia. Abba et Ma. Hastaoglu, MODELING OF MULTI GAS-SOLID REACTIONS - A TRANSIENT MODEL, Canadian journal of chemical engineering, 75(3), 1997, pp. 583-595
A rigorous multicomponent multi gas-solid reaction model is developed.
It is based on the particle - pellet model and considers the transien
t nature of the system, inter- and intra-particle heat and mass transf
er and the variation of structural parameters with reaction. The model
equations describing the structural changes along with property evalu
ation schemes are formulated for a general multicomponent system. Simu
lation results are compared with experimenter data for carbon gasifica
tion and the reduction of a nickel oxide / hematite mixture. The match
between model and experiment was found satisfactory. Both concentrati
on and temperature profiles and other parameters are examined.