Mixed matrix membranes for pervaporative separation of isopropanol/water mixtures

Recent membrane development for pervaporation processes

“…Since the proposal of MMM concept, numerous inorganic fillers such as zeolites [136][137][138][139][140][141][142][143][144], multiwalled carbon nanotubes (MWCNTs) [145][146][147], silica [146,148] and graphene oxide (GO) [149], porous organic cages (POCs) [150] and covalent organic frameworks [151] work, which may be attributed to the difference in their polymer matrices.…”

“…To compare the separation efficiency of zeolite 4A with other particles such as silica and carbon molecular sieve (CMS), Bakhtiari et al [142] introduced these three types of particles into two polyimide matrices (Matrimid ® and P84) for IPA dehydration.…”

Fabrication of MMMs with improved gas separation properties using externally-functionalized MOF particles

“…In theory, the advantages of both the polymer (ease of processing, low cost) and the inorganic material (favorable separation properties) can be realized in a MMM. MMMs have already shown promising results for applications such as ue gas purication, 6 water separation, 7,8 natural gas separation, 9 and petrochemical separation. 10 MMMs traditionally employ rigid hydrophilic zeolites 11 or carbon molecular sieve particles 12 as the inorganic ller phase, which are usually not compatible with glassy polymers.…”

Effect of Nanofillers on Properties and Pervaporation Performance of Nanocomposite Membranes: A Review

“…In particular, a well-known membrane-based process for selective separation of a wide variety of liquid mixtures called pervaporation (PV), has attracted remarkable attention in recent years [3][4][5]. PV offers many advantages over other present separation processes such as low operating cost, reduced energy demand, environmentally friendly operation, and membranes with adjustable separation properties suitable for a wide variety of applications [6,7].…”

“…Thereby, the minor component preferentially transports through the membrane. The mass transfer is accompanied by a phase change from liquid to vapor due to the lower vapor pressure on the permeate side than the feed side of the membrane [7,[9][10][11]. In detail, the transport through PV membranes typically occurs according to a solution-diffusion mechanism [6,12].…”