SOUSA, R. M.; http://lattes.cnpq.br/0942016528587821; SOUSA, Raissa Menezes de.
Resumo:
Several technologies have been used to treat the water produced (water / oil
mixture). Membrane separation processes (PSM) have advantages over other
traditional methods of separation, however, some operational problems related to
PSM, such as polarization by concentration, fouling and formation of the gel
layer, cause a decrease in permeate flow over time. Under conditions where the
effects of concentration polarization are minimal, the flow will be affected by
transmembrane pressure. Thus, a study of the fluid dynamics of a water / oil
mixture using ceramic membrane was carried out with the help of ANSYS CFX®
Release 15.0 software. A mathematical model was developed with an
incompressible fluid flowing in a turbulent regime. The equations of linear
momentum, conservation and mass transport were solved with the aid of a
structured mesh. The results of the simulation presented the following results:
mathematical modeling numerically predicted the process of tangential filtration
via the ceramic membrane in the treatment of produced water; it was observed
that in very low flows there is a higher concentration of oil near the membrane
while at high flow rates the oil is dispersed in the mixture, where the boundary
layer is broken; the viscous effects do not present significant differences in the
concentration and velocity profiles.