Solvent recovery from soybean oil/n-butane mixtures using a hollow fiber ultrafiltration membrane

AUTOR(ES)

Tres, M. V., Racoski, J. C., Nobrega, R., Carvalho, R. B., Oliveira, J. V., Di Luccio, M.

FONTE

Braz. J. Chem. Eng.

DATA DE PUBLICAÇÃO

2014-03

RESUMO

The aim of this work was the study on the separation of soybean oil/n-butane mixtures using a commercial hollow fiber ultrafiltration membrane (50 kDa). Oil/n-butane mixtures with mass ratios of 1:1 and 1:3 (wt), with the feed pressures of 5, 7 and 10 bar and transmembrane pressure of 1 bar were studied. Rejections of oil between 21 to 97.2%, oil fluxes between 0.04 and 0.98 kg/m² h and n-butane fluxes between 4 and 46 kg/m² h were observed, strongly influenced by the feed concentration. The increase in oil/n-butane mass ratio caused an increase in oil rejection and a decrease in the permeate flux of oil for most assays. The increase in the operating pressure caused an increase in oil flux and a consequent decrease in oil rejection. No degradation was observed in the membrane module during the operation with this non-aqueous feed stream, as confirmed by integrity tests.

Documentos Relacionados

• Solvent recovery from soybean oil/n-hexane mixtures using hollow fiber membrane
• Oil Removal from Produced Water by Ultrafiltration using Polysulfone Membrane
• Polyimide hollow fiber membranes for CO2 separation from wet gas mixtures
• Response surface methodology to evaluation the recovery of amylases by hollow fiber membrane
• Removal of endotoxin from water by microfiltration through a microporous polyethylene hollow-fiber membrane.