2.11 Supported Liquid Membranes for Pervaporation Processes

Bioprocess intensification: A route to efficient and sustainable biocatalytic transformations for the future

“…Pervaporation has been intensively studied as an ISPR technique in ethanol and ABE fermentations [140][141][142][143], with productivity enhancements >200% and >120% using this integrated technology being reported for batch and continuous ABE fermentations respectively [134,144,145]. The development of high performing (in terms of selectivity and flux), economically competitive organophilic membranes for such sustainable processing applications is the subject of much interest amongst the research community [146][147][148], with the focus being on composite membranes [149,150] and supported liquid and ionic liquid membranes [151,152]. There is also a need to develop more fouling resistant pervaporation membranes for long term application in continuous fermentation systems [153].…”

Polymer inclusion membranes containing ionic liquids for the recovery of n-butanol from ABE solutions by pervaporation

“…PIMs offer promising results of both permeability and selectivity but their stability mostly depends on the compatibility and partial miscibility between the polymer and the IL, which results in the formation of differentiated regions between them, and the loss of IL from these regions is the main mechanism of degradation of these membranes during PV [22]. Consequently, and given the large number of combinations between polymers and ILs, more studies are needed regarding their interactions to determine their potential compatibility.…”