EVALUATION OF THE N-NONANE PREADSORPTION METHOD WITH A WELL CHARACTERIZED MODEL ADSORBENT - SILICALITE-I

The n-nonane preadsorption technique is analysed here, using a well ch aracterized model adsorbent: silicalite-I. Controlled Rate - Evolved G as Analysis allows the precise quantity of n-nonane retained to be kno wn. In this case the n-nonane totally blocks the microporous channels of silicalite-I without allowing diffusion of the adsorbate. Quasi-equ ilibrium microcalorimetry shows that the adsorbent nature is not modif ied by the n-nonane and also supplies supplementary information on pre viously noted argon and nitrogen adsorbate transitions. However, initi al desorption of the n-nonane renders certain void regions of the micr oporous network inaccessible to the adsorbate.