PERMEATION RATE IN SELECTIVE
MEMBRANE GAS SEPARATION

V. I. Baikov and N. V. Primak

UDC 66.071.6.081.6

The procedure of calculation of the permeation rate in 
membrane selective separation of binary gas mixtures with allowance 
for the convective external and intramembrane diffusion resistances 
has been proposed. The calculated concentration distributions in the 
membrane pressure channel have been compared to the literature experimental 
data; their satisfactory agreement has been shown. The ordinary nonlinear 
differential equation of first order for the permeation rate as a 
function of the physical properties of a binary gas mixture and the 
parameters of a membrane element has been solved.

A. V. Luikov Heat and Mass Transfer Institute, National Academy 
of Sciences of Belarus, 15 P. Brovka Str., Minsk, 220072, Belarus; 
email: prymak@tut.by. Translated from Inzhenerno-Fizicheskii Zhurnal, 
Vol. 81, No. 3, pp. 421-426, May-June, 2008. Original article 
submitted January 18, 2007.