Estudo teórico do processo de microfiltração em membranas cerâmicas.

Abstract

Innovative technologies are needed to attend the requirements increasingly strict for produced waters treatment, whereas the most separation processes are limited to particles larger than 10 μm. Separation processes using ceramic membranes is attracting great interest from academic and industrial community. Nevertheless, it has been reported few studies, especially numerical, regarding the inorganic membranes application in the separation water/petroleum. Accordingly, a study of fluid-flow dynamics in porous tubes (tubular porous ceramic membrane) was performed, in a laminar regime. The mass, momentum and mass transport conservation equations were solved with the aid of a structured mesh using ANSYS commercial package CFX 12. The permeation velocity local was determined by using the resistance in series model. The specific resistance of the polarized layer was obtained by Carman-Kozeny equation. The numerical results were compared and evaluated using analytical and numerical results available in the literature presenting good agreement with each other. The numerical results indicate that, using the proposed separation module (shell / tube membrane), there is a mass transfer favoring and a reduction in the thickness boundary layer polarized.