Membranes for dehydration of alcohols via pervaporation

Alcohols are the essential chemicals used in a variety of pharmaceutical and chemical industries. The extreme purity of alcohols in many of such industrial applications is essential. Though distillation is one of the methods used conventionally to purify alcohols, the method consumes more energy and...

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Bibliographic Details
Published in:Journal of environmental management 2019-07, Vol.242, p.415-429
Main Authors: Jyothi, M.S., Reddy, Kakarla Raghava, Soontarapa, K., Naveen, S., Raghu, Anjanapura V., Kulkarni, Raghavendra V., Suhas, D.P., Shetti, Nagaraj P., Nadagouda, Mallikarjuna N., Aminabhavi, Tejraj M.
Format: Article
Language:English
Subjects:
Dehydration
Nanostructures
Pervaporation
Polymer membranes
Separation applications
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Summary:Alcohols are the essential chemicals used in a variety of pharmaceutical and chemical industries. The extreme purity of alcohols in many of such industrial applications is essential. Though distillation is one of the methods used conventionally to purify alcohols, the method consumes more energy and requires carcinogenic entertainers, making the process environmentally toxic. Alternatively, efforts have been made to focus research efforts on alcohol dehydration by the pervaporation (PV) separation technique using polymeric membranes. The present review is focused on alcohol dehydration using PV separation technique, which is the most efficient and benign method of purifying alcohols that are required in fine chemicals synthesis and developing pharmaceutical formulations. This review will discuss about the latest developments in the area of PV technique used in alcohol dehydration using a variety of novel membranes. Enhanced membrane performance due to incorporation of GO (enhanced sorption and diffusion selectivity) [Reprinted from (Dharupaneedi et al., 2014); Copyright© 2014 with permission from American Chemical Society]. [Display omitted] •An overview of various types of membranes used in pervaporation dehydration of alcohols.•Two types of mass transport mechanisms in hybrid membranes are described.•Reporting membrane performance in terms of permeance and selectivity with all necessary steps.•The perspective on fabricating next generation of mixed matrix membranes is proposed.
ISSN:0301-4797
1095-8630
DOI:10.1016/j.jenvman.2019.04.043