CONVECTIVE REGIMES UNDER DIFFUSION IN THREE-COMPONENT GAS SYSTEMS AT DIFFERENT CONTENT OF THE DENSITY HEAVY COMPONENT IN THE MIXTURE

Abstract

The diffusion of a binary mixture of nitrogen and dichlorodifluoromethane at various concentrations in n-butane is studied experimentally by means of a two-flask method. It is shown that for a certain content of dichlorodifluoromethane in the mixture, convective currents arise, which substantially distort the mass transfer expected during diffusion. The conditions defining the change in the “diffusion-concentration gravitational convection” regimes are determined within the framework of the stability theory. The experimental results and the calculated data are in satisfactory agreement with each other.