Gas stripping assisted vapour permeation using graphene membrane on silicon carbide for ethanol recovery.

ABSTRACT: The conventional methods for ethanol recovery in low concentrations from diluted aqueous solutions are limited by the high energy consumed. Therefore, developing a cost-effective advanced membrane process for ethanol recovery and concentration is still necessary. A gas stripping-assisted vapour permeation (GSVP) process was applied to concentrate ethanol by the selective removal of water using hydrophilic graphene oxide (GO) membranes. Silicon carbide porous tubes were internally coated with GO-based membranes with an average thickness of 1.1 μm as a selective layer. Dry N₂ was bubbled into the feed solution, carrying the saturated vapours to the separation module. The modified GSVP process was implemented to recover ethanol at lower temperatures than direct distillation and clo

SUBMITTER: Carrio JAG 

PROVIDER: S-EPMC10275899 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature