Microfiltration tangentielle avec décolmatage sur membranes céramiques

Abstract

La microfiltration tangentielle avec décolmatage est étudiée sur une membrane céramique tubulaire en alumine pure à structure anisotrope dont la couche filtrante possède des pores de diamètre 0,2 um, Un appareil de microfiltration tangentielle original de très faible volume mort et dénué de boucle de recirculation est présenté. Il permet d'obtenir en tout point de la membrane et rapidement des conditions identiques de pression, vitesse tangentielle et concentration. Le décolmatage est assuré par un organe refoulant une fraction de perméat sous des conditions ajustables.

Optimization and Modeling of Apple Juice Cross‐flow Microfiltration with a Ceramic Membrane

“…The measurements were taken at three different feed velocities within each temperature but no velocity effect was observed as expected. The magnitudes of the water flux compared well with water permeabilities of similar membranes reported by Galaj et al (1984), Hsieh et al (1988, and Matsumoto et al (1988). The increase in flux with temperature was due to the decrease in viscosity.…”

High temperature ceramic membrane reactors for coal liquid upgrading. Quarter report No. 9, September 21, 1991--December 20, 1991

“…Alumina ceramic membranes have been tested successfully for various gas-phase separations [43-54], for water purification and sterilization operations in the food and pharmaceutical industries [6][7][8][9][10][11][12][13][14], and for treatment of wastewaters containing oily contaminants [15]. There are only a few reported studies, however, about their use in membrane reactor _n applications [55-571, mostly in the patent literature.…”

High temperature ceramic membrane reactors for coal liquid upgrading

“…Alumina ceramic membranes have been tested successfully for various gas-phase separations [43][44][45][46][47][48][49][50][51][52][53][54], for water purification and sterilization operations in the food and pharmaceutical industries [6][7][8][9][10][11][12][13][14], and for treatment of wastewaters containing oily contaminants [15]. There are only a few reported studies, however, about their use in membrane reactor applications [55][56][57], mostly in the patent literature.…”

“…The main client for ceramic membranes so far has been the food, pharn_laceutical and electronics [6][7][8][9][10][11][12][13][14] industries, where such membranes are replacing organic and polymeric membranes for ultrafiltration, water purification and sterilization purposes. Ceramiic membranes are also making inroads into other areas like the treatment of waste waters containing oily contaminants [15] and in bioreactor applications [16].…”