Patricia M. Lima1, Caroline V. Gonçalves2, A. Eurico B. Torres3, Diana C. S. Azevedo2, Dilson Cardoso1, and Célio L. Cavalcante Jr.4. (1) Dept Eng. Quimica, Univ Fed Sao Carlos, Rodovia Washington Luiz km 235, Sao Carlos, SP, 13565, Brazil, (2) Chemical Engineering, Universidade Federal do Ceará, Campus do Pici, bl. 709, Fortaleza, 60.455-900, Brazil, (3) Department of Chemical Engineering, Universidade Federal do Ceará, Campus do Pici, bl. 709, Fortaleza, 60.455-900, Brazil, (4) Department of Chemical Engineering, Universidade Federal do Ceara, Campus do Pici, Bl. 709, Fortaleza, CE, 60455-760, Brazil
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.