2006 AIChE Annual Meeting

(320ac) Intracrystalline Diffusivities of Linear Paraffins in Zeolite Beta Using Zlc

Authors

Celio Cavalcante - Presenter, UFC - Universidade Federal Do Ceara
Patricia M. Lima, Univ Fed Sao Carlos
Caroline V. Gonçalves, Universidade Federal do Ceará
A. Eurico B. Torres, Universidade Federal do Ceará
Diana Azevedo, Universidade Federal do Ceará
Dilson Cardoso, Univ Fed Sao Carlos
BETA zeolite is an aluminosilicate with large micropores, polymorphous and three-dimensional structure with 12-membered rings in its framework. In this study we present measurement results of intracrystalline diffusivities of linear paraffins (C6-C10) in BETA zeolite using the ZLC method. The influences of desorption flow rate and temperature were evaluated. The diffusivity values were estimated using a Fickian mass transfer model that showed good agreement with the experimental desorption curves.