The Enrichment of Acetic Acid Using an Integrated Reverse Osmosis–Electrodialysis Process DOI Creative Commons

Shichang Xu,

Long Zhang, Zhen Zhang

et al.

Membranes, Journal Year: 2025, Volume and Issue: 15(5), P. 129 - 129

Published: April 27, 2025

In this study, the integrated process of reverse osmosis (RO) and electrodialysis (ED) is developed to concentrate dilute solution acetic acid (HAc). The key parameters, such as RO pressure, ED voltage, volume ratio, were systematically evaluated operation conditions processes optimized. Under an operating pressure 5 MPa, can enrich low-concentration HAc from 1.5 wt.% 6.5% energy consumption 0.37 kW·h·kg−1. Next, RO-concentrated water was used feed first with a ratio concentrated chamber 1:4 carried out under flow rate 30 L/h voltage 12 V; concentration reached 12.50 wt.%. second 1:5 made final reach 19.02 This study shows that using instead initial for reduce cost markedly, RO–ED efficiently pre-enrich aqueous solution, enriched meets requirements further distillation HAc.

Language: Английский

The Enrichment of Acetic Acid Using an Integrated Reverse Osmosis–Electrodialysis Process DOI Creative Commons

Shichang Xu,

Long Zhang, Zhen Zhang

et al.

Membranes, Journal Year: 2025, Volume and Issue: 15(5), P. 129 - 129

Published: April 27, 2025

In this study, the integrated process of reverse osmosis (RO) and electrodialysis (ED) is developed to concentrate dilute solution acetic acid (HAc). The key parameters, such as RO pressure, ED voltage, volume ratio, were systematically evaluated operation conditions processes optimized. Under an operating pressure 5 MPa, can enrich low-concentration HAc from 1.5 wt.% 6.5% energy consumption 0.37 kW·h·kg−1. Next, RO-concentrated water was used feed first with a ratio concentrated chamber 1:4 carried out under flow rate 30 L/h voltage 12 V; concentration reached 12.50 wt.%. second 1:5 made final reach 19.02 This study shows that using instead initial for reduce cost markedly, RO–ED efficiently pre-enrich aqueous solution, enriched meets requirements further distillation HAc.

Language: Английский

Citations

0