Isothermal micropore kinetic parameters

Two kinetic (CMS-Kl, CMS-K2) and one equilibrium (CMS-R) carbon molecular sieves, used originally for separation of gaseous mixtures, were investigated. The adsorption Nj isotherms at 77 K, in static conditions where obtained. In the case of the two first sieves the adsorption was so low that the calculation of parameters characterizing the texture was impossible. The volume of nitrogen adsorbed on the sieve CMS-R is remarkable From obtained results parameters characterizing micropore structure according to Dubinin -Radushkevich equation and Horvath - Kawazoe method were determined. 

To tackle the difficulty of the identification of the FR spectra, Do and co-workers have developed non-linear frequency response models for both isothermal and nonisothermal systems by using the concept of higher-order FRFs [23,31-33]. By applying the second order FRFs, these theoretical models are able to give unique FR spectra for the multi-kinetic mechanisms occurring in microporous material systems [33]. More parameters have to be measured experimentally, however, which needs a more complex apparatus, and there are no experimental data available yet to test the proposed models. 

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