Nv. Choudary et al., AN IMPROVED LANGMUIR APPROACH FOR PREDICTION OF BINARY GAS-MIXTURE ADSORPTION EQUILIBRIA, Separation science and technology, 30(11), 1995, pp. 2337-2348
The mixed Langmuir adsorption isotherm has been modified for improved
prediction of binary gas mixture adsorption equilibria. The modified m
ethod has been applied to predict adsorption equilibria for 52 binary
gaseous mixtures on adsorbents like activated carbon, silica gel, and
carbon and zeolite molecular sieves for which experimental data are re
ported in the literature. Predictions by this method are generally bet
ter for the binary gas mixtures in systems involving activated carbons
, silica gel, and carbon molecular sieve adsorbents compared to that o
f the mixed Langmuir approach. However, in systems having zeolite mole
cular sieve adsorbents, predictions are less satisfactory. The higher
deviations of predicted data from experimental values in these systems
are attributed to the lack of single component adsorption isotherm da
ta at low coverages.