Multi-scale modelling of OSN batch concentration with spiral-wound membrane modules using OSN Designer
File(s)
Accepted version
Author(s)
Shi, B
Peshev, D
Marchetti, P
Zhang, S
Livingston, AG
Type
Journal Article
Abstract
Three commercial spiral-wound membrane modules of different sizes, from 1.8″ × 12″ to 4.0″ × 40″, are used to concentrate a solution of sucrose octaacetate in ethyl acetate under different operating conditions. A mathematical model to describe the batch concentration process is developed, based on a combination of the classical solution diffusion membrane transport model and the film theory, to account for the mass transfer effects. The model was implemented using the “OSN Designer” software tool. The membrane transport model parameters as well as all parameters in the pressure drop and mass transfer correlations for the spiral-wound modules were obtained from regression on a limited number of experimental data at steady state conditions. Excellent agreement was found between the experimental and multi-scale modelling performance data under various operating conditions. The results illustrate that the performance of a large scale batch concentration process with spiral-wound membrane modules can be predicted based on laboratory crossflow flat sheet test data when the fluid dynamics and mass transfer characteristics in the module, and the necessary channel geometry are known. In addition, the effects of concentration polarisation, pressure drop through feed and permeate channels, and thermodynamic non-ideality of the solution at large scale batch concentration are also investigated.
Date Issued
2016-02-11
Date Acceptance
2016-02-04
Citation
Chemical Engineering Research & Design, 2016, 109, pp.385-396
ISSN
1744-3563
Publisher
Elsevier
Start Page
385
End Page
396
Journal / Book Title
Chemical Engineering Research & Design
Volume
109
Copyright Statement
© 2016, Elsevier. Licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Subjects
Science & Technology
Technology
Engineering, Chemical
Engineering
Batch concentration
Spiral-wound membrane module
Organic solvent nanofiltration
Multi-scale modelling
OSN Designer
ORGANIC-SOLVENT NANOFILTRATION
MASS-TRANSFER
PERFORMANCE
SPACER
SEPARATION
PRESSURE
EXTRACTS
CHANNELS
FLUX
FLOW
Publication Status
Published