Development of Single Crystal Membrane Technique for Direct Measurement of Micropore Diffusivity

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CTS-9313661 Cleveland State University Orhan Talu ABSTRACT The single crystal method of determining diffusivity in micropores will be modified to permit concentration-driven measurements at constant pressure and to include the capability for isotopic labeling by the incorporation of a mass spectrometer for analysis. Investigations performed with the single crystal method may help to resolve differences between macroscopic (e.g. gavimetric) and microscopic (e.g. NMR) - based estimates of diffusivities. Diffusion of gases in absorbants for separations and in packed beds for reactors is important for the design and operation of many industrial chemical processes.