Collect. Czech. Chem. Commun. 1994, 59, 1772-1787

Certain Problems with the Application of Stochastic Diffusion Processes for the Description of Chemical Engineering Phenomena. Stochastic Model of Isothermal Continuous Flow Chemical Reactor

Vladimír Kudrnaa, Libor Vejmolab and Pavel Hasala

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


A model of an isothermal one-dimensional continuous flow chemical reactor operating at the steady state was derived using a stochastic description of motion of the reacting molecules. The model enables evaluation of the conversion of the reacting components. At the limiting parameter values the model yields results identical to those of the simplified models conventionally used in chemical reactor engineering. The model also enables the applicability of Danckwerts' boundary conditions to be assessed from a more general point of view.