ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Diffusion  Coefficients of n-Hexane in Particles of Molecular Sieve NaY Determined by means of Chromatographic Measurements

D. Bobok and M. Ondrejková

Department of Chemical and Biochemical Engineering, Faculty of Chemical Technology, Slovak Technical University,CS- 812 37 Bratislava

Abstract: The values of effective diffusion coefficients of n-hexane in the presence of nitrogen (1.48-5.60) x 10^-9 m² s^-1 were determined at 160-240°C under the assumption that the particle of molecular sieve NaY can be described by a quasi-homogeneous model. Considering a biporous structure in this particle, the determined values of diffusion coefficients D_a/r₀²  of n-hexane in a molecular sieve crystal in the presence of nitrogen are ranging from 32.4 to 41.4 s^-1.

Full paper in Portable Document Format: 466a363.pdf

Chemical Papers 46 (6) 363–367 (1992)