Study on The Concentration of Acrylic Acid and Acetic Acid by Reverse Osmosis.

ABSTRACT: In the production of acrylic acid, the concentration of acrylic acid solution from the adsorption tower was low, which would lead to significant energy consumption in the distillation process to purify acrylic acid, along with the production of a large amount of wastewater. Reverse osmosis (RO) was proposed to concentrate the acrylic acid aqueous solution taken from a specific tray in the absorption tower. The effects of operating conditions on the permeate flux and acid retention were studied with two commercial RO membranes (SWC5 and SWC6). When the operating pressure was 4 MPa and the temperature was 25 °C, the permeate fluxes of two membranes were about 20 L·m^-2·h^-1. The acrylic acid and acetic acid retentions were about 80% and 78%, respectively. After being imme

SUBMITTER: Liu Q 

PROVIDER: S-EPMC7408086 | biostudies-literature | 2020 Jul

REPOSITORIES: biostudies-literature