Collect. Czech. Chem. Commun. 1994, 59, 345-358

Certain Problems with the Application of Stochastic Diffusion Processes for the Description of Chemical Engineering Phenomena. Formulation of Boundary Conditions in Flow Systems

Vladimír Kudrnaa, Pavel Hasala and Libor Vejmolab

a Department of Chemical Engineering, Prague Institute of Chemical Technology, 166 28 Prague 6, Czech Republic
b OIS SPOLANA Inc., 277 11 Neratovice, Czech Republic


Problems associated with the formulation of the boundary conditions for diffusion equations describing flow-through chemical-engineering systems from the point of view of stochastic process theory are discussed. An approach to modelling such systems is presented, allowing the one-dimensional diffusion (dispersion) model of a continuous flow mixer, commonly used in chemical engineering, to be reassessed from a rather general point of view.