Solvent recovery from soybean oil/n-hexane mixtures using hollow fiber membrane

Brazilian Journal of Chemical Engineering

M. V. Tres²  R. Nobrega¹  R. B. Carvalho¹  J. V. Oliveira¹  M. Di Luccio¹ 

[1] ,URI Department of Food Engineering Erechim RS ,Brazil

关键词: Soybean oil;    n-Hexane;    Solvent recovery;    Hollow fiber;    Ultrafiltration;    Membrane conditioning;   

DOI  :  10.1590/S0104-66322012000300015

来源: SciELO

【 摘 要 】

In this work, the separation of refined soybean oil/n-hexane mixtures was investigated using a commercial hollow fiber ultrafiltration membrane 50 kDa. Three alcohols with different chain lengths were tested for the conditioning of the membrane; n-propyl alcohol showed the highest n-hexane permeate flux after conditioning. There was a decrease in the rejection and an increase in permeate flux over time. This behavior may be related to swelling and membrane plasticization by the oil. Rejections from 10.0 to 28.7% and total permeate fluxes from 12.2 to 65.3 kg/m²h were observed. An increase in the oil/n-hexane mass ratio and the pressure caused an increase in the rejection and permeate total flux for most assays. No degradation was observed in the membrane module.

【 授权许可】

CC BY   
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