The application of NIAS approach to describe enthalpic effects accompanying mixed-gas adsorption

The possibilities of the non-ideal adsorbed solution (NIAS) approach to study enthalpic effects accompanying mixed-gas adsorption equilibria is presented. Besides heterogeneity the interaction effects are taken into account. The obtained theoretical expressions for predicting isosteric heats of adsorption in the gas mixture are relatively simple and accurate. To predict phase diagrams and calorimetric effects in the mixed-gas adsorption only the knowledge of single-gas adsorption isotherms and accompanying calorimetric effects is required.