17-P- 11- Macroscopic and microscopic investigations of the interaction of a chloroalkene on a MFI zeolite

Publisher Summary This chapter discusses gravimetric, microcalorimetric, in situ X-ray diffraction (XRD), and in situ Fourier Transform infrared spectroscopy (FTIR) spectroscopic studies of the interaction of trichloroethene and tetrachloroethene on high siliceous zeolites, which are carried out for the further knowledge of the adsorption processes of large admolecules in the microporous network of MFI adsorbents. Trichloroethene gives classic type I isotherms, whereas tetrachloroethene gives stepped isotherms at 298 K. Structural changes of the adsorbent are observed for the adsorption of either trichloroethene or tetrachloroethene. A comparative analysis of macroscopic and microscopic data is also proposed and correlations are established between thermodynamic and structural data.