A Review on Mixed Matrix Membranes for Solvent Dehydration and Recovery Process

Abstract

Solvent separation and dehydration are important operations for industries and laboratories. Processes such as distillation and extraction are not always effective and are energy-consuming. An alternate approach is offered by pervaporation, based on the solution-diffusion transport mechanism. Polymer-based membranes such as those made of Polydimethylsiloxane (PDMS) have offered good pervaporation performance. Attempts have been made to improve their performance by incorporating inorganic fillers into the PDMS matrix, in which metal-organic frameworks (MOFs) have proven to be the most efficient. Among the MOFs, Zeolitic imidazolate framework (ZIF) based membranes have shown an excellent performance, with high values for flux and separation factors. Various studies have been conducted, employing ZIF-PDMS membranes for pervaporation separation of mixtures such as aqueous-alcoholic solutions. This paper presents an extensive review of the pervaporation performance of ZIF-based mixed matrix membranes (MMMs), novel synthesis methods, filler modifications, factors affecting membrane performance as well as studies based on polymers other than PDMS for the membrane matrix. Some suggestions for future studies have also been provided, such as the use of biopolymers and self-healing membranes.

Pervaporation Membranes Based on Polyelectrolyte Complex of Sodium Alginate/Polyethyleneimine Modified with Graphene Oxide for Ethanol Dehydration

“…Thus, pervaporation is a less energy-intensive technology [6]. Pervaporation is also actively used and developed for the dehydration and recovery of solvents [7], which are important operations for industry and laboratories [8].…”

Novel Design of Co-Poly(Hydrazide Imide) and Its Complex with Cu(I) for Membrane Separation of Methanol/Dimethyl Carbonate Mixture

“…PV is widely used to separate azeotropic mixtures as well as liquids with close boiling points [ 22 , 23 , 24 , 25 , 26 ]. The undoubted advantages of PV are high separation efficiency, low pollution, safe operation, and low power consumption [ 27 ]. Successful realization of the pervaporation separation is possible only under the correct choice of a membrane material [ 28 , 29 ].…”

A Review of Recent Developments of Pervaporation Membranes for Ethylene Glycol Purification

“…Today, the main task of membrane research is to develop membrane materials with improved strength-deformation characteristics, as well as high selectivities and permeabilities, which can be produced easily and cost-effectively. There are basically three types of membranes, i.e., inorganic, organic, and mixed matrix (MMM) membranes, which are produced from various membrane materials [ 13 , 14 , 15 , 16 ]. A variety of membranes have been investigated for selective water or methanol removal from EG solutions; however, these materials have certain limitations that prevent their industrial-scale production.…”