Diffusion of linear and branched C-6 hydrocarbons in silicalite studied by the wall-coated capillary chromatographic method

Diffusion and adsorption of several C-6 hydrocarbons in small commercial silicalite crystals has been studied by the chromatographic method using a wall-coated capillary column. Both the kinetic and equilibrium data are generally consistent with the results of earlier gravimetric measurements with large laboratory-synthesized crystals, thus confirming both the validity of the wall-coated column technique for measuring diffusion and the essential similarity in the diffusional behavior of large and small silicalite crystals. (C) Elsevier Science Inc. 1997.