Some features of mass transfer in composite materials

The paper deals with the process of mass transfer in a two-phase system which consists of a mobile phase (a liquid or a gas) and dispersed particles forming a spacial structure, i.e. a skeleton. It is shown that in systems like this the process of the mobile phase transfers is greatly affected by forces generated at both interfaces and particle boundaries. These forces are responsible for new regularities of the mass transfer in dispersed systems, in particular, a spontaneous increase in an intensive variable is a possibility.