Experimental and theoretical analysis of the mass transport through porous glass membranes with different pore diameters

The understanding of mass transport in narrow pores, it is an important problem of long standing interest in heterogeneous catalysis, gas-solid reactions and adsorptive separations. In recent years intense worldwide activity in applying newly developed porous materials has led to renewed interest in this subject.
This work was focused on studying single gas and competitive diffusion through porous glass membranes with different mean pore sizes in the range from 1.4 to 4.2 nm and through a Vycor glass membrane with mean pore size of 4 nm.
In this thesis a comprehensive experimental data basis of pure component diffusion and counter-diffusion of different test gases was provided. Besides studying diffusion, the adsorption equilibrium measurements were performed to determine pure and binary mixture isotherms.