Using pervaporation data in the calculation of vapour permeation hollow-fibre modules for aroma recovery

AUTOR(ES)

Ribeiro Jr., C. P., Borges, C. P.

FONTE

Brazilian Journal of Chemical Engineering

DATA DE PUBLICAÇÃO

2004-12

RESUMO

Taking into account the close similarity between pervaporation and vapour permeation techniques, a method for employing pervaporation flux data in the modelling of vapour permeation modules is proposed. It is based on the use of fugacity gradients across the membrane, instead of concentration ones, as the driving force for mass transfer. This procedure is interesting, for instance, in the case of aroma recovery systems, for which there is much more experimental data on pervaporation available in the literature than on vapour permeation. In order to illustrate the application of this method, pervaporation experiments for an isotropic PDMS membrane were conducted with aqueous solutions of ethyl acetate (113-2474 mg/L), and the results obtained were used to enable simulation of different vapour permeation hollow-fibre modules for recovering ethyl acetate from diluted air streams.

Documentos Relacionados

• Recuperação dos componentes do aroma de café por pervaporação
• CHARACTERISATION OF ASYMMETRIC ALUMINA HOLLOW FIBRES: APPLICATION FOR HYDROGEN PERMEATION IN COMPOSITE MEMBRANES
• Development and characterization of microfiltration hollow-fiber modules for sterilization of fermentation media
• Relevance of Hydrodynamic Effects for the Calculation of Outer Surface Potential of Biological Membrane Using Electrophoretic Data
• Solvent recovery from soybean oil/n-hexane mixtures using hollow fiber membrane