Hydrophilic and organophilic pervaporation of industrially important α,β and α,ω-diols.

ABSTRACT: The distillation-based purification of α,β and α,ω-diols is energy and resource intensive, as well as time consuming. Pervaporation separation is considered to be a remarkable energy efficient membrane technology for purification of diols. Thus, as a core pervaporation process, hydrophilic polyvinyl alcohol (PVA) membranes for the removal of water from 1,2-hexanediol (1,2-HDO) and organophilic polydimethylsiloxane-polysulfone (PDMS-PSF) membranes for the removal of isopropanol from 1,5 pentanediol (1,5-PDO) were employed. For 1,2-HDO/water separation using a feed having a 1 : 4 weight ratio of 1,2-HDO/water, the membrane prepared using 4 vol% glutaraldehyde (GA4) showed the best performance, yielding a flux of 0.59 kg m^-2 h^-1 and a separation factor of 175 at 40 °C. I

SUBMITTER: Chaudhari S 

PROVIDER: S-EPMC8695363 | biostudies-literature | 2021 Mar

REPOSITORIES: biostudies-literature