Separation of fermentation products from ABE mixtures by perstraction using hydrophobic ionic liquids as extractants

Performance of butanol separation from ABE mixtures by pervaporation using silicone-coated ionic liquid gel membranes

“…Table 7 shows viscosity, diffusion coefficient of butanol and the concentration of water at saturation condition for each ionic liquid tested in this work. These values were obtained from the data sheets supplied by Iolitec, the equation proposed by Morgan and Fergunson and previously used by Merlet and coworkers, 29 and by the Karl Fischer titration method for viscosity, diffusion coefficient and concentration of water at saturation, respectively. The values presented in this table show that both transport properties, viscosity and diffusion coefficient, do not have a signicant inuence on the values of transmembrane ux of butanol, which were reported in Table 4.…”

“…Nevertheless, higher selectivity involves lower permeability and the PDMScoated IL gel membranes show low total and specic transfer rates when compared with other membranes reported in the literature. In Table 7, there are two different group of membranes that have been reported, those with high permeability and selectivity and permeability 14,18,29,31 with thickness values ranging from 4 to 65 mm. Furthermore, other membranes 22,30,34 show high permeability, but very low permeability for the recovery of butanol, and thicknesses ranged from 5 to 100 mm.…”

Ionic liquid-based enzyme-assisted extraction of chlorogenic acid from Flos Lonicera Japonicae

“…In order to sieve the better combination of anions and cations, both of them were investigated, respectively. We investigated several common anions on the basis of literature and finally screened out five anions including Br − , Cl − , NO 3 − , BF 4 − , and PF 6 − Ma et al 2011;Merlet et al 2017). As can be seen from Fig.…”

Low energy intensity production of fuel-grade bio-butanol enabled by membrane-based extraction

“…This system has advantages such as (a) high driving force (high partition coefficient), (b) effective processing conditions (minimized concentration polarization due to high circulation) and (c) favourable scale up (modularity). 15,[22][23][24] In spite of all these advantages, the PS technology has remained immature to date, due to the high mass transfer resistance through state-ofthe-art membranes (Table S2, ESI †). 22,25 This study presents a solution to this longstanding problem of affinity-driven membrane separation by focusing our research on the three key areas of extractant, membrane, and engineering.…”

“…15,[22][23][24] In spite of all these advantages, the PS technology has remained immature to date, due to the high mass transfer resistance through state-ofthe-art membranes (Table S2, ESI †). 22,25 This study presents a solution to this longstanding problem of affinity-driven membrane separation by focusing our research on the three key areas of extractant, membrane, and engineering. We have created new membranes with an order of magnitude improvement in higher alcohol fluxes, leading to an innovative perstraction platform combining these membranes with extractants to improve productivity over previous systems by more than a factor of 10 (Table S2, ESI †), while simultaneously lowering energy intensity to 3.9 MJ kg À1 , Table S3 and S4 (ESI †).…”