Unravelling the solvent flux behaviour of ceramic nanofiltration and ultrafiltration membranes

Predictive membrane transport models for Organic Solvent Nanofiltration: How complex do we need to be?

“…The relationship between solubility parameter and solvent permeance, observed in this study, is in agreement with observations from other studies[15,24,47].The effect of pressure on polystyrene rejection is shown in Figs. 6-8, respectively.…”

“…(14) and (15) forms the Maxwell-Stefan model for multicomponent diffusion [18,32]. After integration, for the unidirectional, steady-state case, with the assumptions of all transport coefficients independent of concentration and mass fraction profiles linear across the membrane, the equations become…”

“…Some studies focus on solvent permeation [10,11], and modified models for describing solvent permeation have been developed for both polymeric and ceramic membranes, based on either solution-diffusion or pore-flow mechanism [11][12][13][14][15]. The effect of pressure on rejection and permeation is rarely used to discriminate between transport models, with data often reported at one pressure value only.…”

Desolventizing organic solvent-soybean oil miscella using ultrafiltration ceramic membranes

“…A systematic study on solvent flux behavior of ceramic and nanofiltration membranes was reported by Buekehoudt et al [18]. The authors emphasized the importance of viscosity in solvent transport.…”

“…Such characteristic increases membrane stability and, consequently, provides longer shelf life. However, recent studies have shown that solute-solvent-membrane interactions play an important role even when ceramic membranes are used in non-aqueous permeations [16][17][18].…”