Application of the three-stage shrinking core model in the transport of reactive gas in the porous media

A model describing the three-stage noncatalytic gas-solid reactions is pres ented in this paper. With the equations describing the relationship between the fractional conversion of solid reactant and the reaction time scale, t wo general features are obtained for this three-stage model. The theoretica l prediction of the transport of gaseous reactant through the porous media of a fixed bed column using this three-stage model is also presented in thi s paper. (C) 1999 Elsevier Science B.V. All rights reserved.