Ethanol dehydration performance of three types of commercial-grade zeolite permselective membranes.

ABSTRACT:

Background

Many organic solvents form difficult-to-separate mixtures with water and have an affinity for water, making drying a potential reuse prerequisite. Pervaporation (PV) and vapor permeation (VP) membrane technologies hold promise for energy-efficient solvent drying. Several water-selective membrane materials are commercially available, but performance data is limited, particularly for two recently commercialized membrane materials: chabazite (CHA) and T-type zeolites. In this work, commercial-grade samples of CHA and T-type membranes, along with a NaA zeolite membrane, were evaluated for the removal of water from ethanol.

Results

The CHA sample had the highest initial PV water permeance (6820 GPU) and water permselectivity (3430) with 5 wt% water in ethanol at 50 °C.

SUBMITTER: Vane L 

PROVIDER: S-EPMC10631551 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature