Multicomponent mass transport in organic solvent nanofiltration with solvent mixtures

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

“…Recently, Postel et al [24,25] used the Maxwell-Stefan model to describe solvent and solute fluxes in the cases of both positive and negative rejections. Solvent fluxes for mixtures were also predicted, using model parameters from single solvent/solute mixtures.…”

“…The different chain flexibility compared to glassy polyimide/polyamide and rubbery silicone-coated membranes results in different sorption and swelling properties, which in turn results in different rejection profiles in OSN [21]. For both glassy and rubbery membranes, negative rejection has been demonstrated to be non-negligible under certain operating conditions, and the number of publications reporting negative rejection in non-aqueous nanofiltration has increased in recent years [16,21,[23][24][25][26][27]. However, the data on negative rejection available in the literature are mostly reported as observed data.…”

Numerical simulation of thermal behavior and multicomponent mass transfer in direct laser deposition of Co-base alloy on steel

“…The solute transfer and composition profiles evolution for binary system Fe-C during double-track direct metal deposition also have been reported [21]. Although the multicomponent mass transfer model has been built in metal casting and chemical engineering [22,23], such study for direct laser deposition has not been reported in the open peerreviewed literature.…”

Solubility and diffusivity of liquids for food and pharmaceutical applications in crosslinked polydimethylsiloxane (PDMS) films: II. Experimental data on mixtures

“…Most of the literature works deal with general experimental determination of fluxes and separation performances of membranes, and do not report or analyze separately the values of the single physical parameters which are responsible for the observed behaviors [8][9][10][11][12][13][14][15][16][17][18]. Such works therefore can be used to design a specific separation process in a limited range of operative conditions, but are less useful in the understanding of the underlying physical mechanisms and for the parameterization of appropriate models.…”

“…The recent works of Postel et al present solute retention data measured on a commercial silicon membrane in which the effect of the affinity between the solvent and the membrane can deeply affect the permeation and the separation process, resulting in negative retentions in organic solvent nanofiltration in some cases [17,18].…”