Aluminum-rich zeolite beta incorporated sodium alginate mixed matrix membranes for pervaporation dehydration and esterification of ethanol and acetic acid

Fabricating graphene oxide-based ultrathin hybrid membrane for pervaporation dehydration via layer-by-layer self-assembly driven by multiple interactions

“…The variation of water/ethanol permeance and selectivity with water content in feed is ascribed to the joint plasticization effect and coupling effect [31][32][33]. In the range of 5 wt% to 10 wt%, the plasticization effect of water on membrane dominates, which causes membrane swelling, loosened membrane structure, resulting in significant increase of water/ethanol permeance.…”

Pervaporation and membrane reactor performance of polyimide based mixed matrix membranes containing MOF HKUST-1

“…Furthermore, the MMMs have been tested for the removal of water produced in the esterification reaction of ethanol and acetic acid to produce ethyl acetate in a continuous membrane reactor system (4MR, MOF mixed matrix membrane reactor), using Amberlyst™ 15 ion-exchange resin as heterogeneous catalyst. Regarding MMMs used to overcome the thermodynamic equilibrium limitations in the esterification reaction of acetic acid with ethanol, sodium alginate with zeolite 4A (Bhat and Aminabhavi, 2009) and aluminum rich zeolite beta (Adoor et al, 2008) have been reported, obtaining conversions higher than 80% at 70 1C. There are no reports dealing with MOF MMMs for esterification.…”

Poly(vinyl alcohol)/ZIF‐8‐NH2 mixed matrix membranes for ethanol dehydration via pervaporation

“…Here, the pervaporation performance of PZN-7.5, PZ-7.5, and PZNA-7.5 MMMs are investigated at various operating temperatures (30,40,50, and 608C) and the results are presented in Figure 10, Supporting Information Figures S9 and S10, respectively. As we can see, the total flux and individual fluxes (water and ethanol flux) of all membranes increase with the increase in the operation temperature.…”

“…On the other side, inorganic membranes based on silica, alumina, or zeolites generally possess excellent thermal and mechanical stability, as well as superior pervaporation performance, 28 but their applications are often limited by the high cost and low processability. To overcome the problems of the simple inorganic and polymeric membranes, mixed matrix membranes (MMMs) consisting of inorganic particles incorporated in a polymeric matrix, including zeolites, 29,30 silica, [31][32][33] activated carbons, 34 carbon nanotube, 35,36 and metal organic frameworks, may provide synergistic superiority of organic and inorganic materials as pervaporation membranes. 37,38 Zeolitic imidazolate framework (ZIF) material, as one promising nanofiller in the membrane matrix, is a subfamily of metal organic frameworks, and possesses tunable structures and favorable affinity with the polymer matrix as compared with most other traditional inorganic particles with rigid frameworks.…”