Brazilian Journal of Chemical Engineering | |
Solvent recovery from soybean oil/n-butane mixtures using a hollow fiber ultrafiltration membrane | |
M. V. Tres2  J. C. Racoski2  R. Nobrega1  R. B. Carvalho1  J. V. Oliveira1  M. Di Luccio1  | |
[1] ,URI Erechim Department of Food Engineering Erechim RS ,Brazil | |
关键词: Soybean oil; n-butane; Solvent recovery; Hollow fiber; Membrane conditioning; | |
DOI : 10.1590/S0104-66322014000100022 | |
来源: SciELO | |
【 摘 要 】
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.
【 授权许可】
CC BY
All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License
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